SONY_HCD-EC68_EC78_ver-1.0

SERVICE MANUAL

Sony CorporationAudio Business GroupPublished by Sony Techno Create Corporation

section

HCD-EC78European and Russian models:

Power output (rated):Low channel55 W + 55 W (at 8 Ω, 1 kHz, 1% THD)High channel55 W + 55 W (at 8 Ω, 8 kHz, 1% THD)

RMS output power (reference):Low channel75 W + 75 W (per channel at 8 Ω, 1 kHz, 10% THD)High channel75 W + 75 W (per channel at 8 Ω, 8 kHz, 10% THD)

Other models:

Power output (rated):Low channel50 W + 50 W (at 8 Ω, 1 kHz, 1% THD)High channel50 W + 50 W (at 8 Ω, 8 kHz, 1% THD)

RMS output power (reference):Low channel70 W + 70 W (per channel at 8 Ω, 1 kHz, 10% THD)High channel70 W + 70 W (per channel at 8 Ω, 8 kHz, 10% THD)

HCD-EC68European and Russian models (except for the UK model):

Power output (rated):50 W + 50 W (at 6 Ω, 1 kHz, 1% THD)

RMS output power (reference):70 W + 70 W (per channel at 6 Ω, 1 kHz, 10% THD)



Other models:



InputsAUDIO IN (stereo mini jack): Sensitivity 800 mV, impedance22 kilohms

OutputsPHONES (stereo mini jack): Accepts headphones with animpedance of 8 Ω or moreSPEAKER: impedanceHCD-EC78: 8 ΩHCD-EC68: 6 Ω

CD player sectionSystem: Compact disc and digital audio systemLaser: Semiconductor laser (λ=770 – 810 nm)Emission duration: continuousFrequency response: 20 Hz – 20 kHzSignal-to-noise ratio: More than 90 dBDynamic range: More than 88 dBTape deck section (except for the UKmodel)Recording system: 4-track 2-channel, stereo

Tuner sectionFM stereo, FM/AM superheterodyne tunerAntenna:

FM lead antennaAM loop antenna

FM tuner section:Tuning range:87.5 – 108.0 MHz (50 kHz step)Intermediate frequency: 10.7 MHz

AM tuner section:Tuning rangeAustralian, Pan-American models:530 – 1,710 kHz (with 10 kHz tuning interval)531 – 1,710 kHz (with 9 kHz tuning interval)European and Russian models:531 – 1,602 kHz (with 9 kHz tuning interval)Other models:530 – 1,610 kHz (with 10 kHz tuning interval)531 – 1,602 kHz (with 9 kHz tuning interval)Intermediate frequency: 450 kHz

HCD-EC68/EC78

SPECIFICATIONS

EXCEPT HCD-EC68: UK MODELCOMPACT DISC DECK RECEIVER

HCD-EC68: UK MODELCOMPACT DISC RECEIVER

9-889-007-012008B05-1© 2008.02

AEP ModelE Model

HCD-EC68/EC78

UK ModelAustralian Model

HCD-EC68

Ver. 1.0 2008.02

• HCD-EC68 is the amplifi er, CD player, tape deck (except UK model) and tuner section in MHC-EC68.

• HCD-EC78 is the amplifi er, CD player, tape deck and tuner section in MHC-EC78. Photo : HCD-EC78

CDSection

Model Name Using Similar Mechanism NEWMechanism Type CDM88A-K6BD90-WODOptical Pick-up Block Name KSM-213DCP

Tape deck Section (EXCEPT EC68: UK)

Model Name Using Similar Mechanism HCD-EC77

Tape Transport Mechanism Type TCM-J1 or CS-21SC-900TP

– Continued on next page –

HCD-EC68/EC78

2

1. SERVICING NOTES ............................................. 3

2. GENERAL .................................................................. 6

3. DISASSEMBLY3-1. Disassembly Flow ........................................................... 83-2. Side Panel (L)/(R) ........................................................... 93-3. Top Panel (EC68: UK model)/Top Panel Block (Except EC68: UK model) .............................................. 93-4. Tape Mechanism Deck (Except EC68: UK model) ........ 103-5. MAIN Board ................................................................... 103-6. Front Panel Section ......................................................... 113-7. Back Panel Block ............................................................ 113-8. CD Mechanism Block ..................................................... 123-9. BU Block ........................................................................ 123-10. OP Base Assy (KSM-213D) ........................................... 13

4. TEST MODE ............................................................ 14

5. MECHANICAL ADJUSTMENTS ...................... 18

6. ELECTRICAL ADJUSTMENTS ........................ 18

7. DIAGRAMS7-1. Printed Wiring Board - CD Board - ................................ 247-2. Schematic Diagram - CD Board - ................................... 257-3. Printed Wiring Board - DECK Board (Except EC68: UK model) - .................. 267-4. Schematic Diagram - DECK Board (Except EC68: UK model) - .................. 267-5. Printed Wiring Board - MAIN Board - ........................... 277-6. Schematic Diagram - MAIN Board (1/2) - ..................... 287-7. Schematic Diagram - MAIN Board (2/2) - ..................... 297-8. Printed Wiring Board - HI AMP Board (EC78) - ........... 307-9. Schematic Diagram - HI AMP Board (EC78) - .............. 307-10. Printed Wiring Board - LOW AMP Board - ................... 317-11. Schematic Diagram - LOW AMP Board - ...................... 317-12. Printed Wiring Board - PANEL Board (Suffi x-12) - ...... 327-13. Printed Wiring Board - PANEL Board (Suffi x-13) - ...... 327-14. Schematic Diagram - PANEL Board - ............................ 337-15. Printed Wiring Boards - KEY Section - .......................... 347-16. Schematic Diagram - KEY Section - .............................. 347-17. Printed Wiring Board - PT Board - ................................. 357-18. Schematic Diagram - PT Board - .................................... 36

8. EXPLODED VIEWS8-1. Panel Section ................................................................... 448-2. Tape Deck Section (Except EC68: UK).......................... 458-3. Front Panel Section ......................................................... 468-4. Chassis Section ............................................................... 478-5. Main Section ................................................................... 488-6. CD Mechanism Section (CDM88A-K6BD90-WOD) .... 49

9. ELECTRICAL PARTS LIST .............................. 50

TABLE OF CONTENTS

SAFETY-RELATED COMPONET WARNING!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

Notes on chip component replacement• Never reuse a disconnected chip component.• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

Flexible Circuit Board Repairing• Keep the temperature of soldering iron around 270 °C during

repairing.• Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).• Be careful not to apply force on the conductor when soldering

or unsoldering.

This appliance is classified as a CLASS 1LASER product. Thismarking is located on the rear exterior.

CAUTIONUse of controls or adjustments or performance of procedures other than those specifi ed herein may result in hazardous radiation exposure.

General

Power requirements:European and Russian models: AC 230 V, 50/60 HzMexican model: AC 127 V, 60 HzArgentine model: AC 220 V, 50/60 HzAustralian model: AC 230 – 240 V, 50/60 HzOther models: AC 120, 220 or 230 – 240 V, 50/60 Hz,adjustable with voltage selector

Power consumption:

HCD-EC78European and Russian models: 160 W

0.5 W (in Power Saving Mode)Mexican model: 160 WOther models: 150 W

HCD-EC68European and Russian models (except for the UK model): 100 W

0.5 W (in Power Saving Mode)Other models: 100 W

Dimensions (w/h/d) (excl. speakers):Approx. 200 × 306 × 415 mm

Mass (excl. speakers):

HCD-EC78European and Russian models: Approx. 6.0 kgOther models: Approx. 6.3 kg

HCD-EC68European and Russian models (except for the UK model):

Other models: Approx. 5.3 kg

Approx. 5.3 kg

HCD-EC68/EC78

3

SECTION 1SERVICING NOTES

Model Part No.EC68: AEP model 3-296-777-0[]

EC68: 120V AC area in E, Chilean and Peruvian models 3-296-779-0[]

EC78: AEP model 3-296-780-0[]

EC78: 120V AC area in E, Chilean and Peruvian models 3-296-782-0[]

EC68: Russian model 3-398-081-0[]

EC68: UK model 3-398-082-0[]

EC68: 240V AC area in E model 3-398-083-0[]

EC68: Australian model 3-398-084-0[]

EC68: Mexican model 3-398-085-0[]

EC68: Argentina model 3-398-086-0[]

EC78: Russian model 3-398-088-0[]

EC78: 240V AC area in E model 3-398-090-0[]

EC78: Mexican model 3-398-091-0[]

EC78: Argentina model 3-398-092-0[]

MODEL IDENTIFICATION– Back Panel –NOTES ON HANDLING THE OPTICAL PICK-UP

BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostat-ic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body.During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts.The fl exible board is easily damaged and should be handled with care.

NOTES ON LASER DIODE EMISSION CHECKThe laser beam on this model is concentrated so as to be focused on the disc refl ective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.

UNLEADED SOLDERBoards requiring use of unleaded solder are printed with the lead-free mark (LF) indicating the solder contains no lead.(Caution: Some printed circuit boards may not come printed with

the lead free mark due to their particular size)

: LEAD FREE MARKUnleaded solder has the following characteristics.• Unleaded solder melts at a temperature about 40 °C higher

than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be

applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to

about 350 °C.Caution: The printed pattern (copper foil) may peel away if the

heated tip is applied for too long, so be careful!• Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to fl ow)

than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.

• Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may

also be added to ordinary solder.

RELEASING THE DISC TRAY LOCKThe disc tray lock function for the antitheft of an demonstration disc in the store is equipped.

Releasing Procedure:1. Press [I/1] button to turn the power on.2. Press the [FUNCTION] button to select CD function.3. While pressing the [x] button, press the [Z] button for more 5

seconds).4. The message “UNLOCKED” is displayed and the disc tray is

unlocked.

Note: When “LOCKED” is displayed, the slot lock is not released by turning power on/off with the [I/1] button.

MODELNUMBERLABEL

SUFFIX-12/SUFFIX-13 DISCRIMINATION OF PANEL BOARD

S301

– PANEL Board (Component Side) –

LCD301

S301

CN304

Suffix-12 : 1-875-490-12Suffix-13 : 1-875-490-13

HCD-EC68/EC78

4

HOW TO REMOVE THE KNOB (VOL)

HOW TO OPEN THE TRAY WHEN POWER SWITCH TURN OFF

door (CD)

Turn a gear by a driver till a lever falls down to the position of the figure.

lever

gear

pull the tray by the hand.

knob (VOL)

hole Push the knob (VOL) by the flat head driver.

front panel block (back view)

HCD-EC68/EC78

5

CAPACITOR DISCHARGE FOR ELECTRIC SHOCK PREVENTION

MAIN board

MAIN board

C626 (EC68/EC78: E2, E3, E51, MX, AR),C678 (EC78: AEP, RU)

C622 (EC68/EC78: E2, E3, E51, MX, AR),C677 (EC78: AEP, RU)

In checking the MAIN board, make a capacitor discharge of C622, C676, C677 and C678 for electric shock prevention.

800 Ω/2W

800 Ω/2W

Tape Deck Name Tape Deck Part No. Belt Part No.

TCM-J1 A-1527-851-A 2-670-389-01 BELT (1)3-214-817-01 BELT (FR)

CS-21SC-900TP 1-797-575-11 2-688-621-01 BELT (R/F)2-688-622-01 BELT (MAIN)

HOW TO DISTINGUISH TAPE MECHANISM DECK (EXCEPT EC68: UK MODEL)Two kinds of tape mechanism decks installed by this set exist.

Please do the repair exchange after confi rming which tape mechanism deck set of the repair according to how to distinguish the fi gure below.

motor

Metal part: TCM-J1Mold part: CS-21SC-900TP

tape deck

• Abbreviation AR : Argentina model E2 : 120V AC area in E model E3 : 240V AC area in E model E51 : Chilean and Peruvian models MX : Mexican model RU : Russian model

HCD-EC68/EC78

6

SECTION 2GENERAL

This section is extracted from instruction manual.

Basic Operations Selecting a music sourcePress the following buttons (or press FUNCTION repeatedly).

To select PressCD CD .Tuner TUNER/BAND .Tape1) TAPE .Component2) (connected using an audio cord)

FUNCTION repeatedly until “AUDIO IN” appears.

1) Except for the UK model.2) If the component has the AVLS (Automatic Volume Limiter System)

or BASS BOOST function, turn off the function to avoid distorted sound from the speakers.

Adjusting the sound

To adjust the volumePress VOLUME +/– (or turn the VOLUME control on the unit) .

To add a sound effectTo PressGenerate a more dynamic sound (Dynamic Sound Generator X-tra)

DSGX on the unit.

Set the sound effect EQ .

Playing a CD/MP3 disc1 Select the CD function.

Press CD (or FUNCTION repeatedly) .2 Place a disc.

Press (open/close) on the unit, and place a disc with the label side up on the disc tray. To place additional discs, slide the disc tray with your finger as shown below.To close the disc tray, press (open/close) on the unit.Do not force the disc tray closed with your finger, as this may damage the unit.

3 Select a disc.If the discs are currently stopped, press DISC SKIP . To change discs while in other functions, press DISC 1 – 3 on the unit.

4 Start playback.Press (play) (or CD (play) on the unit) .To exchange other discs during playback, press EX-CHANGE on the unit.

To PressPause playback (pause) . To resume play,

press the button again.Stop playback (stop) .Select a folder on an MP3 disc

(select folder) +/– .

Select a track or file / (go back/go forward) (or / on the unit) .

Find a point in a track or file

Hold down / (rewind/fast forward) during playback, and release the button at the desired point.

Select Repeat Play REPEAT repeatedly until “REP” or “REP1” appears.

To change the play modePress PLAY MODE repeatedly while the player is stopped. You can select normal play (no display for all discs or “1 DISC” for a disc or “ ” for all MP3 files in the folder on the disc), shuffle play (“SHUF” for all discs shuffle, “1 DISC SHUF” for one disc shuffle or “ SHUF*” for folder shuffle), or program play (“PGM”).* When playing a CD-DA disc, (SHUF) Play performs the same

operation as 1 DISC (SHUF) Play.

Notes on Repeat PlayAll tracks or files on a disc are played repeatedly up to five times. You cannot select “REP” and “SHUF” (all discs shuffle) at the same

time.“REP1” indicates that a single track or file is repeated until you stop

it.

Notes on playing MP3 discsDo not save other types of tracks or files or unnecessary folders on a

disc that has MP3 files.Folders that have no MP3 files are skipped.MP3 files are played back in the order that they are recorded onto

the disc.The system can only play MP3 files that have a file extension of

“.MP3”.If there are files on the disc that have the “.MP3” file extension,

but that are not MP3 files, the unit may produce noise or may malfunction.The maximum number of:folders is 150 (including the root folder).MP3 files is 255.MP3 files and folders that can be contained on a single disc is 300.folder levels (the tree structure of files) is eight.

Compatibility with all MP3 encoding/writing software, recording device, and recording media cannot be guaranteed. Incompatible MP3 discs may produce noise or interrupted audio or may not play at all.

Notes on playing multisession discsIf the disc begins with a CD-DA (or MP3) session, it is recognized

as a CD-DA (or MP3) disc, and playback continues until another session is encountered.A disc with a mixed CD format is recognized as a CD-DA (audio)

disc.

Listening to the radio1 Select “TUNER FM” or “TUNER AM.”

Press TUNER/BAND repeatedly.2 Select the tuning mode.

Press TUNING MODE repeatedly until “AUTO” appears.

3 Tune in the desired station.Press +/– (or TUNING +/– on the unit) .Scanning stops automatically when a station is tuned in, and then “TUNED” and “ST” (for stereo programs) appear.

To stop automatic scanningPress (stop) .

To tune in a station with a weak signalIf “TUNED” does not appear and the scanning does not stop, press TUNING MODE repeatedly until “MANUAL” appears, and then press +/– (or TUNING +/– on the unit) repeatedly to tune in the desired station.

To reduce static noise on a weak FM stereo stationPress FM MODE repeatedly until “MONO” appears to turn off stereo reception.

Playing a tape (Except for the UK model)1 Select a tape function.

Press TAPE (or FUNCTION repeatedly) .2 Insert a tape.

Press (stop/eject) on the unit, and insert the tape into the cassette holder. Make sure there is no slack in the tape to avoid damaging the tape or the tape deck.

3 Start playback.Press (play) on the unit.

To PressPause playback (pause) on the unit. To resume

play, press the button again.Stop playback (stop/eject) on the unit.Rewind or fast forward*

/ (rewind/fast forward) on the unit.

* Be sure to press (stop/eject) on the unit after the tape has been wound or rewound to the end.

NoteDo not turn off the system during playback or recording.

Changing the displayTo PressChange information on the display*

DISPLAY repeatedly when the system is turned on.

Change Display mode (See below.)

DISPLAY repeatedly when the system is turned off.

* For example, you can view CD/MP3 disc information, such as;track or file number during normal play.track or file name (“ ”) during normal play.artist name (“ ”) during normal play.album or folder name (“ ”) during normal play.total playing time while the player is stopped.

The system offers the following display modes.

Display mode When the system is off,Power Saving Mode1)

The display is turned off to conserve power. The timer and clock continue to operate.

Clock2) The clock is displayed.1) You cannot set the clock in Power Saving Mode.2) The clock display automatically turns to Power Saving Mode after

eight seconds.

Notes on the display informationCharacters that cannot be displayed appear as “_”.The following are not displayed;total playing time for an MP3 disc.remaining playing time for an MP3 file.The following are not displayed correctly;elapsed playing time of an MP3 file encoded using VBR (variable

bit rate).folder and file names that do not follow either the ISO9660

Level 1, Level 2 or Joliet in the expansion format.The following are displayed;total playing time for a CD-DA disc when the play mode is

“1 DISC”.remaining playing time for a track.ID3 tag information for MP3 files when ID3 version 1 and

version 2 tags are used (ID3 version 2 tag information display has priority when both ID3 version 1 and version 2 tags are used for a single MP3 file).

up to 15 characters of ID3 tag information using uppercase letters (A to Z), numbers (0 to 9), and symbols (‘< > * + , – / @ [ \ ] _).

* Except for the UK model

This manual mainly explains operations using the remote, but the same operations can also be performed using the buttons on the unit having the same or similar names.

Before using the system

To use the remoteSlide and remove the battery compartment lid , and insert the two R6 (size AA) batteries (supplied), side first, matching the polarities shown below.

Notes on using the remoteWith normal use, the batteries should last for about six months.Do not mix an old battery with a new one or mix different types of

batteries.If you do not use the remote for a long period of time, remove the

batteries to avoid damage from battery leakage and corrosion.Batteries installed devices shall not be exposed to excessive heat such

as sunshine, fire or the like.

To set the clock1 Turn on the system.

Press (on/standby) to turn on the system.2 Select the clock set mode.

Press CLOCK/TIMER SET . The hour indication flashes. If “PLAY SET” flashes, press /repeatedly to select “CLOCK,” and then press ENTER .

3 Set the time.Press / repeatedly to set the hour, then press ENTER . The minute indication flashes.Use the same procedure to set the minutes.

NoteThe clock settings are lost when you disconnect the power cord or if a power failure occurs.

*

Using optional audio components

To connect an optional headphonesConnect headphones to the PHONES jack on the unit.

To connect an optional componentConnect additional audio source components to the AUDIO IN jack on the unit using an analog audio cord (not supplied). Turn down the volume on the system, and then select the AUDIO IN function.

HCD-EC68/EC78

7

Creating your own CD program (Program Play)Use buttons on the remote to create your own program.1 Press CD to select the CD function.

2 Press PLAY MODE repeatedly until “PGM” appears while the player is stopped.

3 Press DISC SKIP to select a disc.

4 Press / (or / on the unit) repeatedly until the desired track number appears.When programming MP3 files, press +/– repeatedly to select the desired folder, and then select the desired file.

Selected track or file number

Total playing time of the

selected track

5 Press ENTER to add the track or file to the program.

6 Repeat steps 3 through 5 to program additional tracks or files, up to a total of 25 tracks or files.

7 To play your program of tracks or files, press (or CD on the unit) .The program remains available until you open the disc tray. To play the same program again, select the CD function, and then press (or CD on the unit) .

To cancel Program PlayPress PLAY MODE repeatedly until “PGM” disappears while the player is stopped.

To delete the last track or file of the programPress CLEAR while the player is stopped.

To view program information, such as total track number of the programPress DISPLAY repeatedly.

Presetting radio stationsYou can preset your favourite radio stations and tune them in instantly by selecting the corresponding preset number. 1 Tune in the desired station (See “Listening to the

radio”).

2 Press TUNER MEMORY .Preset number

3 Press +/– (or TUNING +/– on the unit) repeatedly to select your desired preset number.If another station is already assigned to the selected preset number, the station is replaced by the new stations.

4 Press ENTER .

5 Repeat steps 1 through 4 to store other stations.You can preset up to 20 FM and 10 AM stations. The preset stations are retained for about half a day even if you disconnect the power cord or if a power failure occurs.

6 To call up a preset radio station, press TUNING MODE repeatedly until “PRESET” appears, and then press +/– (or TUNING +/– on the unit) repeatedly to select the desired preset number.

Other Operations Recording onto a tape (Except for the UK model)Use a TYPE I (normal) tape only. You can record just the portions you like from a sound source, including connected audio components.Use buttons on the unit to control tape recording.1 Insert a recordable tape into the cassette holder

with the side you want to record facing up.

2 Prepare the recording source.Select the desired source to record.Place the disc you want to record and press DISC SKIP to select a disc.When recording a folder from an MP3 disc, press PLAY MODE repeatedly to select “ ,” and then press +/– repeatedly to select the desired folder.To record only your favourite CD tracks or MP3 files in your desired order, perform steps 2 to 5 of “Creating your own CD program.”

3 Start recording.Press (record) , and then start playing the desired recording source.The CD starts playing automatically after 10 seconds have passed.If there is noise while recording from the tuner, reposition the appropriate antenna to reduce the noise.While recording, you cannot listen to other sources.

To stop recordingPress .

TipWe recommend that you press first, and then press to avoid noise being recorded when you stop recording.

Using the timersThe system offers two timer functions. If you use both timers, the Sleep Timer has priority. Use buttons on the remote to use the timer functions.

Sleep Timer:You can fall asleep to music. This function works even if the clock is not set.Press SLEEP repeatedly. If you select “AUTO,” the system automatically turns off after the current disc or tape stops or in 100 minutes.If the tape deck is still playing or recording at the set time, the system turns off after the tape deck stops.

Play Timer:You can wake up to CD or tuner at a preset time. Make sure you have set the clock.1 Prepare the sound source.

Press VOLUME +/– (or turn VOLUME on the unit) to adjust the volume.To start from a specific CD track or MP3 file, create your own CD program.

2 Press CLOCK/TIMER SET .

3 Press / repeatedly to select “PLAY SET,” then press ENTER .“ON TIME” appears, and the hour indication flashes.

4 Set the time to start playback.Press / repeatedly to set the hour, then press ENTER .The minute indication flashes. Use the procedure above to set the minutes.

5 Use the same procedure as in step 4 to set the time to stop playback.

6 Select the sound source.Press / repeatedly until the sound source you want appears, then press ENTER . The display shows the timer settings.

7 Press to turn off the system.If the system is on at the preset time, the Play Timer will not play.

To activate or check the timer againPress CLOCK/TIMER SELECT , press /repeatedly until “PLAY SEL” appears, then press ENTER .

To cancel the timerRepeat the same procedure as above until “OFF” appears, and then press ENTER .

To change the settingStart over from step 1.

TipThe Play Timer setting remains as long as the setting is not cancelled manually.

HCD-EC68/EC78

8

SECTION 3DISASSEMBLY

• This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

3-2. SIDE PANEL (L)/(R) (Page 9)

3-3. TOP PANEL (EC68: UK MODEL)/TOP PANEL BLOCK (EXCEPT EC68: UK MODEL) (Page 9)

3-4. TAPE MECHANISM DECK (EXCEPT EC68: UK MODEL) (Page 10)

3-6. FRONT PANEL SECTION (Page 11)

3-5. MAIN BOARD (Page 10)

3-7. BACK PANEL BLOCK (Page 11)

3-8. CD MECHANISM BLOCK (Page 12)

3-11. OP BASE ASSY (KSM-213D) (Page 13)

3-9. BU BLOCK (Page 12)

SET

HCD-EC68/EC78

9

Note: Follow the disassembly procedure in the numerical order shown below.

3-2. SIDE PANEL (L)/(R)

3-3. TOP PANEL (EC68: UK MODEL)/TOP PANEL BLOCK (EXCEPT EC68: UK MODEL)

two screws (BVTP3 × 10)

two screws (BVTP3 × 10) four screws

(case3 TP)

side panel (L)

side panel (R)

four screws (case3 TP)

flexible flat cable (9 core) (CN606) (except EC68: UK)

top panel (EC68: UK) top panel block (except EC68: UK)



screw (KTP3 × 10)

screw (KTP3 × 10)

HCD-EC68/EC78

10

3-5. MAIN BOARD

two screws (BVTP3 × 10) (EC78)


connector (CN601)

connector (CN633)

flexible flat cable (5 core) (CN603)

flexible flat cable (5 core) (CN602) (EC78)

connector (CN151)

MAIN board


screw (BVTP3 × 10)



connector (CN604)


3-4. TAPE MECHANISM DECK (EXCEPT EC68: UK MODEL)

Note: This illustration is seeing top panel block from inside.

two screws (2.6 × 8)

two screws (2.6 × 8)

bracket (deck)

DECK board


connector (CN501)

tape mechanism deck (TCM-J1 or CS-21SC-900TP)

top panel block

HCD-EC68/EC78

11

3-6. FRONT PANEL SECTION



Turn a gear by a driver till a lever falls down to the position of the figure.

pull the tray by hand.

lever

gear



door (CD)

front panel section

3-7. BACK PANEL BLOCK

six screws (BVTP3 × 10)


screw (BVTP3 × 10)

connector (power cord) (CN053)

connector (CN601)

back panel block

Cut the clamp.


two screws (BVTP3 × 10) (EC78)

Note: Please do not forget fixation by clamping when you install the power cord.

HCD-EC68/EC78

12

3-8. CD MECHANISM BLOCK

3-9. BU BLOCK

four screws (BVTP3 × 10)

two tapes

flexible flat cable (21 core) (MAIN board: CN608/ CD board: CN201)

flexible flat cable (13 core)

CD mechanism block

Note: When installing the CD mechanism section, install two tapes for prevention of noise.

two screws (PTPWHM2.6)

two coil springs (insurator)

two coil springs (insurator)

insulator

insulator

insulator

insulator

BU block

two screws (PTPWHM2.6)

HCD-EC68/EC78

13

3-10. OP BASE ASSY (KSM-213D)

op base assy (KSM-213D)


CD board

Remove four solders.

HCD-EC68/EC78

14

SECTION 4TEST MODE

COLD RESETThe cold reset clears all data including preset data stored in the memory to initial conditions. Execute this mode when returning the set to the customer.Procedure:1. In the standby status, press the [I/1] button to turn the power

on.2. Press three buttons of [x], [FUNCTION] and at last [I/1] si-

multaneously.3. When “RESET” appears, the set enters standby status.

PANEL TEST MODEEnter The Panel Test ModeProcedure:1. In the standby status, press the [I/1] button to turn the power

on.2. Press three buttons of [DISPLAY], [x], and [FUNCTION] si-

multaneously.3. When the panel test mode is activated, LEDs and segments of

the liquid crystal display are all turned on.

Version CheckProcedure:1. In the panel test mode (all LEDs and segments of the liquid

crystal display are turned on), press the [FUNCTION] button.2. On the liquid crystal display, date and version are displayed

“xxxxxxxx”. For example, “1114V102”.3. From this status, press the [X] button, and the destination and

model name are displayed. For example, “CE2” and “ESLO–”

4. To release from this mode, press three buttons of [DISPLAY], [x], and [FUNCTION] simultaneously.

Key Test ModeProcedure:1. In the panel test mode (all LEDs and segments of the liquid

crystal display are turned on), press the [DISPLAY] button.2. The message “KEY0 0 0”displayed. Whenever any buttons

are pressed and the [VOLUME] dial is turned, the value is changed.

3. To release from this mode, press three buttons of [DISPLAY], [x], and [FUNCTION] simultaneously.

CD REPEAT 5 LIMIT CANCEL MODENumber of repeats for CD playback is 5 times when the repeat mode is “REPEAT”. This mode enables CD to repeat playback for limitless times.Procedure:1. Press the [I/1] button to turn the power on.2. Press the [FUNCTION] button to select CD function.3. Press three buttons of [DISPLAY], [x], and [l m – TUN-

ING] simultaneously. 4. It enters the CD repeat 5 limit cancel mode and displays “NO

LIMIT”5. To release this mode, press the [I/1] button to turn the power off.

CD SHIP MODEThis mode can run the CD sled motor optionally. Use this mode, for instance, when cleaning the optical pick-up.Procedure:1. Press the [I/1] button to turn the power on.2. Confi rm there is no disc in all trays.3. Press the [FUNCTION] button to select CD function.4. Press two buttons of [CD N] and [I/1] simultaneously.5. Set to the CD ship mode. (chucking on)6. After blink “STANDBY”, “LOCK” is displayed, disconnect

the AC plug.

CD TRAY LOCKThis mode is for the antitheft of CD disc in shop. (not for trans-port)Procedure:1. Press the [I/1] button to turn the power on.2. Press the [FUNCTION] button to select CD function.3. Insert a disc.4. While pressing the [x] button, press the [Z] button for more 5

seconds.5. The message “LOCKED” is displayed and the disc tray is

locked. (Even if exiting from this mode, the disc tray is still locked)

6. If press the [Z] button to eject the disc, the message “LOCKED” is displayed and can not eject the disc.

7. To release this lock, while pressing the [x] button, press the[Z] button for 5 seconds again.

8. The message “UNLOCKED” is displayed and the disc tray is unlocked.

CD POWER MANAGEThis mode is for switch the CD power supply on/off. Even if this state pulls out AC plug, it is held.Procedure:1. Press the [I/1] button to turn the power on.2. Press the [FUNCTION] button to select CD function.3. Press the [I/1] button again to turn the power off (standby).4. After pressing the [DISPLAY] button, while pressing the [x]

button, press the [I/1] button.5. It turns power on and display “CD POWER”, then display

“ON” or “OFF”.

CHANGE-OVER THE AM TUNING INTERVAL(Except EC68: AEP, UK and Russian/EC78: AEP and Russian models)The AM tuning interval can be changed over 9 kHz or 10 kHz.Procedure:1. Press the [I/1] button to turn the power on.2. Press the [TUNER/BAND] button to select TUNER (AM)

function.3. Press the [I/1] button again to turn the power off (standby).4. After pressing the [DISPLAY] button, while pressing the

[TUNING + M L] button, press the [I/1] button.5. It turns power on and display “9k STEP” or “10k STEP”, and

thus the tuning interval is changed over.

CD SHIP AND COLD RESETProcedure:1. Press the [I/1] button to turn the power on.2. Confi rm there is no disc in all trays.3. Press the [FUNCTION] button to select CD function.4. Press three buttons of [PLAY MODE/TUNING MODE],

[l m – TUNING] and [I/1] simultaneously.5. After blink “STANDBY”, “RESET” is displayed, disconnect

the AC plug.

COMMON TEST MODEProcedure:1. Press the [I/1] button to turn the power on.2. Press three buttons of [PLAY MODE/TUNING MODE],

[TUNING + M L], and [DISPLAY] simultaneously.3. It enters the common test mode and displays “COMMON”.4. Each time the [VOLUME] dial is turned, “VOL MIN”, “VOL

16”, and “VOL MAX” are displayed5. To release from this mode, press three buttons of [PLAY

MODE/TUNING MODE], [TUNING + M L], and [DIS-PLAY] simultaneously.

HCD-EC68/EC78

15

[CD SERVO TEST MODE]This mode can check the servo system operations of the optical pick-up system (= optical unit + CD board).

Note1: Do not enter the [CD SERVO TEST MODE] while any other test mode is in progress.

Note2: Do not enter any other test mode while the [CD SERVO TEST MODE] is in progress.

How to Enter the CD Servo Test ModeProcedure:1. Press the [I/1] button to turn the power on.2. Press the [FUNCTION] button to select CD function.3. Press three buttons of [CD N], [l m – TUNING] and

[DISPLAY] simultaneously. 4. It enters the CD servo test mode and displays “BDT S CU”.

How to Exit from the CD Servo Test ModeProcedure:1. Press three buttons of [CD N], [l m – TUNING] and

[DISPLAY] simultaneously. 2. It releases from the CD Servo Test Mode and returns to the

ordinary CD function.

Key Operation:[ +], [ –]: Use these keys to move between the fi ve modes

contained in the CD Servo Test Mode, that are the S-Curve Mode, the RAM Read Mode, the RAM Write Mode, the Command Out Mode and the Error Rate Mode as described below. Also, use these keys to move between the menus within the respective fi ve modes. When [ +] is pressed, the screen ad-vances to the next menu or to the next mode. When [ –] is pressed, the screen returns back to the previous menu or to the previous mode. Use these keys also to increase or decrease the numeric value when changing the numeric value. Pressing [ +] increases the value and pressing [ –] decreases the value.

[DSGX] , [EQ]: Use these keys to move between the different layers

of the hierarchy of the CD Servo Test Mode shown below. Press [DSGX] to move down to the lower layer, and press [EQ] to move up to the higher lay-er.

[TUNING + M L], [l m – TUNING]: Use these keys to move the cursor to the right digit

or to the left digit in the six-digit number, when changing the numeric value.

Press [TUNING + M L] to move the cursor to the right, and press [l m – TUNING] to return the cursor to the left.

[FUNCTION]: Use this key to execute Command Out in the Com-

mand Out Mode.

CD Servo Test Mode Tree:

S Curve Mode LD ON (BDT S CU) (LD ON)

RAM Read Mode Disc Type value indication (BDTRAM R) (DISCTYPE) (AL: 0000, RW: 0001) Gain Index value indication (GAININDX) (0001) RFO GAIN value indication (RFO_GAIN) (0009) FEO GAIN value indication (FEO_GAIN) (0005) SBAD GAIN value indication (SBAD_GAI) (0007) TEO GAIN value indication (TEO_GAIN) (000A) Disc Size value indication (DISCSIZE) (0000: Non disc, 0001: 8cm, 0002: 12cm) Op ABRAKE Error value indication (OPABRKER) (0000) SBBT Data value indication (SBBT DAT) (006C) FEOOCD value indication (FEOOCD) (0440)

RAM Write Mode SPG Mask value edit (BDTRAM W) (00 SPG) (Non mask:00, Mask:01) Fix RF Gain value edit (00 FIX) (Non Fix:00, AL Fix:01, RW Fix:02) TMAX ON value edit (00 TMA) Driver Mute OFF value edit (00 D_M) (Normal:00, Forced OFF:01)

Command Out Mode COMOUT6X value edit command out (BDT COMO) (COMOUT6X) (000000) (OK) READ2X value edit command out (READ2X) (60) (50) REG READ value edit command out (REG_READ) (00) (0000) FEBC? command out (FEBC?) (00) FGADD? command out (FGADD?) (10) TEBC? command out (TEBC?) (00) TGADD? command out (TGADD?) (00) RFGC? command out (RFGC?) (00) FEOF? command out (FEOF?) (FFC0) TEOF? command out (TEOF?) (FFC0) TEIOCD1? command out (TEIOCD1?) (FE80) TEIOCD2? command out (TEIOCD2?) (FF40) TEIOCD3? command out (TEIOCD3?) (FFC0) TEOOCD? command out (TEOOCD?) (FD00) FEOOCD? command out (FEOOCD?) (F780) MONITOR value edit command out (MONITOR) (570A00) (OK) Error Rate Mode Error rate indication (BDT ERR) (00000000)

Higher layer Lower layer of menu hierarchy

HCD-EC68/EC78

16

CD SERVICE MODEThis mode can move the SLED of the optical pick-up, and also can turn the optical pick-up laser power on and off.Procedure:1. Press the [I/1] button to turn the power on.2. Press three buttons of [CD N], [TUNING + M L], and

DISPLAY simultaneously.3. Press the [FUNCTION] button to select CD function.4. It enters the CD service mode and displays “SERVICE”.5. To exit from this mode, press three buttons of [CD N], [TUN-

ING + M L] and DISPLAY simultaneously.

Key Operation:[TUNING + M L], [l m – TUNING]: Use these keys to move the SLED. When [TUN-

ING + M L] is pressed in this mode, the SLED moves to outer circumference and the message “SLED OUT” is displayed.

When [l m – TUNING] is pressed in this mode, the SLED moves to inner circumference and the message “SLED IN” is displayed.

[DISPLAY]: Use this key to turn the optical pick-up laser power

on and off. When the laser power is turned on, the message “LD ON” is displayed. When the laser power is turned off, the message “LD OFF” is dis-played.

CD ERROR CODEThe past errors of the CD mechanism (CDM) are displayed as the CDM Errors, and those of the optical pick-up system (= optical unit + CD board) are displayed as the BD Errors as shown below. Procedure:1. Press the [I/1] button to turn the power on.2. Press the [FUNCTION] button to select CD function.3. Press three buttons of [TUNING + M L], [x] and [DIS-

PLAY] simultaneously.4. Then, the CDM error code is displayed as “M0xxxxxx” (x

means hexadecimal number) on the liquid crystal display as shown below.

5. Every pressing of the [TUNING + M L] button in this mode increments the number after “M” starting from “M0” up to “M9”, and then returns to “M0”. Every pressing of the [l m – TUNING] button in this mode decrements the number after “M”. The smaller the error code number is, the newer the error content is.

6. When the [PLAY MODE/TUNING MODE] button is pressed then, the BD error code is displayed as “D0xxxxxx” (x means hexadecimal number) on the liquid crystal display as shown below. In the same way as the CDM error code, use of the [TUNING + M L] and the [l m – TUNING] but-tons in this mode enables tracing of the error history.

7. To release from this mode, press the [I/1] button to turn the power off.

Contents of “CDM Errors”Error display example M 0 FF 11 42 1 2 3 4

1 It indicates the error history number 0 to 9: The error code number 0 indicates the newest error.

2 It indicates whether the CDM error occurs in the normal opera-tions or during the initialization operation. FF : The error has occurred in the normal opera-

tions. Other than FF : The error has occurred during the initialization

operation.

3 It indicates the processing during which the trouble has oc-curred.01: The disc EJECT processing is in progress.02: The disc INSERTION-WAITING processing is in prog-

ress.03: Processing of the disc INSERTION-REQUEST for the up-

per CD tray is in progress.04: Processing of the disc EJECTION-REQUEST for the up-

per CD tray is in progress. 05: The disc pulling-in operation is in progress.06: The disc chucking processing is in progress.07: The disc re-chucking processing is in progress.08: The disc chucking-release completion operation is in prog-

ress.

4 It indicates the operation during which the trouble has oc-curred.00 : Waiting for the operation.10 to 13 : The disc EJECT operation is in progress.20 : The disc pulling-in operation is in progress.30 : The disc chucking-release operation is in progress.40 to 43 : The disc EJECT operation due to error is in prog-

ress.

Contents of “BD Errors” Error display example D 0 02 09 01 1 2 3 4

1 It indicates the error history number 0 to 9: The error code number 0 indicates the newest error.

2 It indicates the error content01: The focus servo cannot lock-in. 02: GFS is no good (NG).03: The startup time exceeds the specifi ed period of time (time

over)04: The focus servo is unlocked continuously. 05: Q code cannot be obtained within the specifi ed period of

time.06: The tracking servo cannot lock-in.07: Blank disc

HCD-EC68/EC78

17

3 It indicates the on-going processing of optical pick-up system (= optical unit + BD board) when the trouble has occurred.01: The CD SHIP mode processing is in progress.02: The POWER OFF processing is in progress.03: The INITIALIZE processing is in progress.04: The optical pick-up system (= optical unit + BD board) is

in the stop state. 05: The STOP operation is in progress.06: The startup processing is in progress.07: The TOC read-in processing is in progress.08: The SEARCH operation is in progress.09: The PLAY operation is in progress.0A: The PAUSE operation is in progress.0B: The PLAY – MANUAL SEARCH operation is in prog-

ress.0C: The PAUSE – MANUAL SEARCH operation is in prog-

ress.

4 It indicates the operation that is being processed when the trou-ble has occurred.

It indicates the step number of each processing specifi ed by 3. Because the numbers of steps are different in each processing, this number is different in each processing.

CD FACTORY MODE

Note1: Do not enter the [CD FACTORY MODE] while any other test-mode is in progress.

Note2: Do not enter any other test mode while the [CD FACTORY MODE] is in progress.

Procedure:1. Press the [I/1] button to turn the power on.2. Press the [FUNCTION] button to select CD function3. Press three buttons of [CD N], [FUNCTION], and [DIS-

PLAY] simultaneously.4. It enters the CD factory mode and displays the following mes-

sage.

–X1ON

S character mode setting Tracking servo setting RF gain setting

Key Operation:[DISPLAY]: The display changes in the following order when-

ever the button is pressed.

(Initial display)

fcsAG ** (**: Focus AGC value)

trkAG ** (**: Track AGC value)

RF-AG ** (**: RF AGC value)

[DSGX]: RF gain setting changes whenever the button is

pressed. “–”: No gain fi xation. “AL”: Fix to the gain for AL disc. “RW”: Fix to the gain for RW disc.

[EQ]: Tracking servo setting changes whenever the but-

ton is pressed. “ON”: Tracking servo ON. “OFF”: Tracking servo OFF.

[FUNCTION]: S character mode setting changes whenever the but-

ton is pressed. “ ”: S character mode OFF. “S”: S character mode ON.

5. To release from this mode, press the [I/1] button to turn the power off.

HCD-EC68/EC78

18

SECTION 5MECHANICAL ADJUSTMENTS

SECTION 6ELECTRICAL ADJUSTMENTS

PRECAUTION1. Clean the following parts with a denatured-alcohol-moistened

swab : record/playback head pinch roller erase head rubber belts capstan idlers2. Demagnetize the record/playback head with a head demag-

netizer. (Do not bring the head magnetizer close to the erase head.)

3. Do not use a magnetized screwdriver for the adjustments.4. After the adjustments, appiy suitable locking compound to the

parts adjusted.5. The adjustments should be performed with the rated power

supply voltage unless otherwise noted.

• Torque MeasurementMode Torque Meter Meter Reading

FWD CQ-102AS2.0 – 8.0 mN • m (20 to 80 g • cm)

(0.28 – 1.12 oz • inch)

FWDBack Tension CQ-102C

0.15 – 0.6 mN • m (1.5 to 6 g • cm)

(0.021 – 0.083 oz • inch)

FF CQ-201AS5 – 17.7 mN • m

(50 to 177 g • cm)(0.7 – 2.48 oz • inch)

REV CQ-201B5 – 17.7 mN • m

(50 to 177 g • cm)(0.7 – 2.48 oz • inch)

• Tape Tension MeasurementMode Tension Meter Meter Reading

FWD CQ-403A more than 80 g(more than 2.82 oz)

1. Demagnetize the record/playback head with a head demagne-tizer.

2. Do not use a magnetized screwdriver for the adjustments.

TEST TAPETape Signal Used for

P-4-A063 6.3 kHz, -10 dB Azimuth Adjustment

RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT

Note: Perform this adjustments for both decks.

Procedure:1. Mode: Playback

set

JACK boardPHONES jack(J492)

+–

level meter

test tapeP-4-A063(6.3 kHz, −10 dB)

2. Turn the adjustment screw and check output peaks. If the peaks do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within 1dB of peak.

3. Mode: Playback

set

test tapeP-4-A063(6.3 kHz, −10 dB) oscilloscope

V H

waveform of oscilloscope

in phase 45° 90° 135° 180°

good wrong

JACK boardPHONES jack(J492)

4. After the adjustments, apply suitable locking compound to the pats adjusted.

Screwposition

L-CHpeak

within1dB

Outputlevel

L-CHpeak

R-CHpeak

within1dB

Screwposition

R-CHpeak

DECK SECTION (EXCEPT EC68: UK model) 0 dB = 0.775V

HCD-EC68/EC78

19

Adjustment Location: Record/Playback/Erase Head CD SECTION

Note:1. CD Block is basically constructed to operate without adjustment.2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.3. Use an oscilloscope with more than 10 MΩ impedance.4. Clean the object lens by an applicator with neutral detergent when the

signal level is low than specifi ed value with the following checks.5. Check the focus bias check when optical pick-up block is replaced.

FOCUS BIAS CHECK

+–

CD board

oscilloscope(DC range)

TP121 (RFI)TP124 (VC)

Procedure :1. Connect the oscilloscope to TP121 (RFI) and TP124 (VC) on

the CD board.2. Press the [I/1] button to turn the power ON, and press the [Z]

button to open the CD disc tray.3. Set disc (YEDS-18) on the trey and press the [CD N] button

to playback.4. Confi rm that oscilloscope waveform is as shown in the fi gure

below. (eye pattern) A good eye pattern means that the diamond shape (◊) in the

center of the waveform can be clearly distinguished.

VOLT/DIV: 200 mV TIME/DIV: 500 ns

level:1.2 ± 0.3 Vp-p

Checking Location:

TP124(VC)

– CD Board (Conductor Side) –

TP121(RFI)

IC101

HCD-EC68/EC78

20

[AM]Setting:FUNCTION: AM

AM RF signal generator

30% amplitude modulation by 400 Hz signalOutput level: 54 dBuV

60 cm

set

loop antenna A loop antenna B

+–

level meter32 Ω

JACK boardPHONES jack (J492)MAIN board

ANTENNACN801 pin

[FM]Setting:FUNCTION: FM

FM RF signalgenerator

75kHz frequencydeviation by 1K HzsignalOutput level: as low as possible (8dBuV)

+–

level meter

set

32 Ω0.01 F

JACK boardPHONES jack (J492)

MAIN boardANTENNACN801 pin


digital voltmeter

100 kΩMAIN boardIC801 pin (TUNER VT)

• Repeat the procedures in each adjustment several times.

TUNER SECTION 0 dB = 1 μV AM FREQUENCY COVERAGE ADJUSTMENT (EC68: Mexican, Argentina, Australian/

EC78: Mexican, Argentina models)

Adjustment Part Frequency Display Reading on Digital Voltmeter

L801 530 kHz 1.5 ± 0.1 VConfi rmation 1,710 kHz 8 ± 0.5 V

AM FREQUENCY COVERAGE ADJUSTMENT (Except EC68: Mexican, Argentina, Australian/

EC78: Mexican, Argentina models)


L801 531 kHz 1.5 ± 0.1 VConfi rmation 1,602 kHz 7.2 ± 0.5 V

AM TRACKING ADJUSTMENT(Except EC68: Mexican, Argentina, Australian/

EC78: Mexican, Argentina models)Adjust for a maximum reading on level meter

L805 530 kHz

AM TRACKING ADJUSTMENT(EC68: Mexican, Argentina, Australian/

EC78: Mexican, Argentina models)Adjust for a maximum reading on level meter

L805 531 kHz

FM FREQUENCY COVERAGE ADJUSTMENT


L803 87.5 kHz 1.75 ± 0.1 VConfi rmation 108 kHz 6.2 ± 0.5 V

FM TRACKING ADJUSTMENTAdjust for a minimum reading on level meter

L804 98 MHz

Adjustment Location: MAIN board (See page 21)

[FM DETECTOR ADJUSTMENT]Setting:

FUNCTION: FM

FM RF signalgenerator

Carrier frequency: 98MHzModulation:deviation by FM 75 kHzOutput level: 60 dBuV

+–

level meter

MAIN boardJW801 (TUNER-GND)

MAIN boardIC801 pin (TUNER OUT L-ch)

set



1. Turn the set to 98 MHz.2. Adjust L802 so that modulation distortion may become the

best in the vicinity of the maximum value where the tuner out level becomes –15dBuV or more.

HCD-EC68/EC78

21

[FM Auto Stop Check]

generator

SET

+

75 Ω

Procedure :1. Turn the power on.2. Input the following signal from Signal Generator to FM an-

tenna input directly.

* Carrier Freq : A = 87.5 MHz, B = 98 MHz, C = 108 MHz Deviation : 75 kHz Modulation : 1 kHz ANT input : 35 dBu (EMF)

Note: Please use 75 ohm “coaxial cable” to connect SG and the set. You cannot use video cable for checking.

Please use SG whose output impedance is 75 ohm. 3. Set to FM tuner function and scan the input FM signal with

automatic scanning.4. Confi rm that input Frequency of A, B and C detected and auto-

matic scanning stops. The stop of automatic scanning means “The station signal is re-ceived in good condition”.

Adjustment Location and Connecting Points:

IC801

CN801ANTENNA

36

1

3

1

1918

IC801 pin (TUNER VT)

IC801 pin (TUNER OUT L-ch)

– MAIN Board (Conductor Side) –

L802FM DetectorAdjustment

– MAIN Board (Component Side) –

L803FM FrequencyCoverage Adjustment

L801FM FrequencyCoverage Adjustment

L805AM TrackingAdjustment

JW801(TUNER-GND)

L804AM TrackingAdjustment

HCD-EC68/EC78

22

MEMO

HCD-EC68/EC78

HCD-EC68/EC78

2323

For Schematic Diagrams.Note:• All capacitors are in μF unless otherwise noted. (p: pF) 50 WV or less are not indicated except for electrolytics

and tantalums.• All resistors are in Ω and 1/4 W or less unless otherwise

specifi ed.• f : internal component.• 2 : nonfl ammable resistor.• C : panel designation.

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.(In addition to this, the necessary note is printed in each block.)

• A : B+ Line.• B : B– Line.• C : adjustment for repair.• Voltages and waveforms are dc with respect to ground

under no-signal (detuned) conditions.– CD Board – no mark : CD PLAY– DECK Board – no mark : TAPE PLAY ( ) : TAPE REC– Other Boards – no mark : TUNER (FM/AM) ( ) : TAPE PLAY < > : TAPE REC { } : CD PLAY• Voltages are taken with a VOM (Input impedance 10

MΩ). Voltage variations may be noted due to normal production

tolerances.• Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production

tolerances.• Circled numbers refer to waveforms.• Signal path. F : FM f : AM J : CD PLAY E : TAPE PLAY j : REC i : AUDIO IN• Abbreviation AR : Argentina model AUS : Australian model E2 : 120V AC area in E model E3 : 240V AC area in E model E51 : Chilean and Peruvian models MX : Mexican model RU : Russian model

For Printed Wiring Boards.Note:• X : Parts extracted from the component side.• Y : Parts extracted from the conductor side.• W : indicated side identifi ed with part number.• f : Internal component.• : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.)

• Indication of transistor.

C

BThese are omitted.

E

Q

• Circuit Boards Location

KEY POWER board

PANEL board

DECK board (except EC68:UK)

MAIN board

HI AMP board (EC78)

LOW AMP board

PT board

REG boardJACK board

KEY CD board

CD board

B

These are omitted.

C E

Q

The components identifi ed by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specifi ed.

Caution:Parts face side:(Conductor Side)Pattern face side: (Component Side)

Parts on the parts face side seen from the pattern face are indicated.Parts on the pattern face side seen from the parts face are indicated.

SECTION 7DIAGRAMS

HCD-EC68/EC78

HCD-EC68/EC78

2424

R150R149R148

R108

R154

R153

C148

C110

C109

C301

C303

C302

C104

R110

C116

C404

R203R204R205R206R207R208

R209R210

R219

R223R222

R147 R221

R218

R146 R145

C150

R113

C403

R202

C151

C108

C105

C147

C146

C145

C152

C118

C117

C144

C101

C125

CN201

C143

C120

R144

R157

C142

C141

C140

C100

C107

R408

R156

C124

C127C126

CN301

R101

C119 C1

02

R415

R414

C103

R405

C113

R102

R402

R105

R106C132

C138

C137

R135

R134

R136

R130

R128

R129

R143

R139

C136

R120

R114

C153

C112

R125

R126

C149

C139

R127

R118

R140

R151

C122

C123

R220

R104

S201

R155

C128

C106

C201

R304R3

02

C309

C205

C207

C307

R303

C133

R111

R112

C115

R211

Q301

R301C2

04

C202

C206

C306

R212

C401

C130

X102

C405

IC20

1

IC401

IC101

R201

R142

CD BOARD (COMPONENT SIDE)

CD BOARD (CONDUCTOR SIDE)

3

1

4

5

1 7 8 14

28 22 21 15TP124(VC)

TP121(RFI)

1 25

26

50

5175

76

100

1

21

MMAIN

BOARDCN608

161

1-872-135-

11

(11)

1-872-135-

11

(11)

OPTICAL PICK-UP BLOCK(KSM-213DCP)

A

B

C

D

E

F

1 2 3 4 5 6 7 8 9

E

(LIMIT)

M401(SPINDLE)

M402(SLED)

M

M

7-1. PRINTED WIRING BOARD - CD Board - • : Uses unleaded solder.• See page 23 for Circuit Boards Location.

(Page 27)

HCD-EC68/EC78

HCD-EC68/EC78

2525

R108R154

R153

C201

R304

R201

R110

R303

R203

R204

R205

R206

R207

R208

R209

R210

R219

R223

R222

R221

R218

R112

R202

R211

Q301

R301

C202

R157

TP121 (RFI)

TP124 (VC)

R156

CN301

R10

1

C401R415

R102

R12

8

R129

R143

R142 R139

R114R140

R15

1

R220

R150

R212

IC101

R105

R10

6

R125

R126

R127

IC201

X102

C301

C307

C309

C100

C13

8

C153

C151

C204

C13

0

C12

8

C11

3

C12

7C

126

C103

C10

2

C120

C118

C117

C101

C12

4C

125

R145

R146

R147

R148

R149

C149

C105

C143

C146

C145C148

C104

C405 C404 C403

C205C116

C133

CN201

C110

R113

R111

C115R155

C109

C132

R104

C123

C122

C139

C150

R136 R135

R134 C112 C108

R120

R118

C136C107

R130

R144

C144

C147

C140

C137

C141

C142

C106

R302

C306

C303C302

R405

R402

R408

R414

C207

C152

C206

IC401

01M

1M

10010V

2.2

0

10k

2.2

100

100

100

100

100

100

100

100

100k

100k

100k

100k

100k

100

0

100

2SA2119K

100k

10010V

100

100

16P

220

22010V47k

10k47

0k

1k

47k

22k 47k

10k0

0

100k

0

TK63115SCL-G@GT

0.1

1

0.001

0.1

470p

0.1

470p

0.1

0.1

0.00

220.

1

0.1

0.1

0.01

0.01

0.022C1190.022

0.1

0.00

470.

0047

0

0

0

0

0

22p

0.1

0.01

470p

0.01

47p

0.1

0.1 0.1 0.1

0.1

0.1

0.1

0.1

10k

100

226.3V

47

0.1

0.1

0

470p

470p

0.01

0.001

22k 470k

1M 0.1 0.1

47p0.1

4.7k

22k

0.1

0.1

0.01

0.01

0.0022

0.1

10010V

0

10010V

1010

10k

2.2k

2.2k

4.7k

1

470p

1

BA5826SFP-E2

SP-

SP+

SL+

SL-

100

1M 1k

0

0

0

16.9344MHz

TC94A70FG-006 (D, HZ

5p

5p

21P

0

100k

IC101CD-MP3 PROCESSOR

IC401FOCUS/TRACKING COIL DRIVE,SLED/SPINDLE MOTOR DRIVE

IC201+1.5V REGULATOR

SP-

SP+

SL+

SL-

M401(SPINDLE)

M402(SLED)

AUTOMATIC POWERCONTROL

S201(LIMIT)

(BX5BT/CBX1)

IC B/D

MMAIN

BOARD(2/2)

CN608

2

1

IC B/D

OPTICALPICK-UPBLOCK

(KSM-213DCP)

M

M

7-2. SCHEMATIC DIAGRAM - CD Board - • See page 37 for waveforms. • See page 38 for IC Block Diagrams. • See page 40 for IC Pin Function Description.

(Page 29)

HCD-EC68/EC78

HCD-EC68/EC78

2626

(2/2)BOARD

KMAIN

CN606

11

7.4

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

7.4

0.3 (5.2) 0 (0.2)

0.3 (5.2)

0.3 (5.2)

0.3 (5.2)

6

21 3

5 4

L501BIAS OSC

S501(REC/PB)

0R515

100kR511

100kR513

150R509

1000pC517

47pC509

220p

C51

1

0R516

100kR512

150R510

100kR514

220pC512

47pC510

47pC525

47pC526

2SC1740S-RTQ501

2SC1740S-RTQ502

2200pC537

2200pC536

2200pC535

1

2

3

4

5

6

7

8

8PCN501

9V

M-GND

SW

EH

VREF

Lch

COM

Rch

E

ET501

R54047

R54147

C5391

R539 4.7

R53710k

R53810k

C5380.01

R5364.7k

R535 4.7k

R53415k

R50

733

0k

R5032.2k

C5050.01

C5032200p

C5042200p

R5042.2k

C5060.01

R508330k

2.2kR501

2.2kR502

16V100

C502

16V100

C501

R5171k

R51

81k

C519470p

C520470p

C521 1

C5221

R52047k

R51947k

R52147k

R52247k

C5320.01

C5310.01

R526330k

R528330k

R525330k

R527330k

R5302.2k

R5292.2k

R5318.2k

R53

28.

2k

C5342200p

C5332200p

50V1

C513

50V1

C514

TP501

TP502

TP504

TP503

TP505

TP506

TP508

TP509

TP507

C5404700

16V47C516

16V47C515

1000pC543

25V22

C542

100R543

100R544

0.1C545

0.1C546

C527470p

C528470p

C530330p

C529330p

R523 3.3k

R5243.3k

R50515k

R50615k

470R545

470R546

8765

4 3 2 1NJM

4558

V-TE

2IC

502

GN

D

VCC

8 7 6 5

4321

NJM

4558

V-TE

2IC

501

GN

D

VCC

0.1C524

0.1C523

R53322k

-+

+-

+-

+-

PB AMP

IC501

IC502REC AMP

(CHASSIS)

DECK BOARD

REC-Rch

REC-Lch

I-TP-STATE

9V1

A-GND

9

M-GND

PB-Rch

9V

PB-Lch

Q501,502OSC

TAPEMECHANISM

DECK

PB

REC

-1

-2

7

D

B

6 9

F

53

G

1

C

E

H

84

A

2

EB

EB1

8

Q501 Q502L501

BIAS OSC

CN501C501 C502

C513

C514

C515

C516

C540

C542

JW501

JW502

JW503

JW504

JW505

JW506

JW507

JW508

JW509

JW510

ET501

1 458

145 8

9

1

R501

R502

R503

R504

R505

R506

R507

R508

R509

R510

R511

R512

R513

R514

R515 R516

R517

R518

R519

R520

R521

R522

R523

R524

R525

R526

R527

R528

R529

R530

R531

R532

R533

R534

R535

R536

R537

R538

R539C503

C504

R540C505

R541

6 4

31

C506

R543

R544

R545C509

R546

C510

C511

C512

C517

C519

C520

C521

C522

C523

C524

C525

C526

C527

C528

C529

C530

C531

C532

C533

C534

C535

C536

C537C538

C539

C543

C545

C546

JR501

JR502

JR503

DECK BOARD

IC501

IC502

KMAIN

BOARDCN606

-2-1S501

S501(REC/PB)

PB REC

TAPEMECHANISM

DECK

1-875-501-

11

(11)

A

B

C

D

1 2 3 4

(CHASSIS)

7-3. PRINTED WIRING BOARD - DECK Board (Except EC68: UK model) -

(Page 29)

• See page 23 for Circuit Boards Location. • : Uses unleaded solder. 7-4. SCHEMATIC DIAGRAM - DECK Board (Except EC68: UK model) - • See page 37 for waveforms.

(Page 27)

HCD-EC68/EC78

HCD-EC68/EC78

2727

36

181

19

B E B E

B E

B E

B E

BE

BEBE

B E

B E

B E

B EB E

B EB E

114

15 28

R601R603

R604R605

R606

R607

R608

R609

R801 R802R803

R804

R610

R805

R611

R806

R612

R807

R613

R808

R614

R809

R615

R616 R617

R618

R619

R810

R811

R812

R813R814

R620

R815

R621

R816

R622

R817

R623

R818

R624

R819

R625

R626

R627

R628

R629

R820

R821

R822

R823

R824

R630

R825

R631

R826

R632

R827

R633

R829

R637

D791

R639

R830

R831

R832

C603

R640

C604

C605

R836

C606

R837

R643

C607

R838

R644

C608

R839

R645

C609

R646

R647

R648

R649

C803

R840

C804

C610

C805

R841

C611

R842C806

C612

C807

R843

R844

C808

R650

R845

C809

R651

C615

R846

R652

C616

R847

C617

C618

C619

C810C811

C814

C815C816

C817

R660

C819

R663

C629

R666

R667C820

C821

R669

C824

C826

C827

C633

C828

R670

C634

C829

C635

R672

R673

C637C638

C639

R676

R677

C830

R678

C831

R679

C832

C834

C640

C835

C836

C642

C837

C643

C838

R680

R681

C645

R682R683 C647

R684

C648

R685

C649

R686

R687

C840

C841

R689

C843

C844

C650

C845

C651C846

C652

C847

C653

C848

R690

C654

R691

C655

R692

C656

R693

C657

R694

C658R695

C659

R696

R697

C850

C660

D601

C662

D602

D603

D604

D605

C666

D606

JR601

JR602

JR603

JR604

JR605

D801

JR606

D802

JR607

D803

JR608

D804

JR609

D805

D806

C674

D614

D617

JR610

D618

JR611

C679

JR612

JR613

JR614

JR615

JR616JR617

JR618

C680

C681

D621

C682

D622

C683

C684

C685

C686C687

D628

C689

C690

D631

C691

C692

C693C694

C695

C696

C699

R700

R701

R702R704

R706R707

R708

R709

R715

R716R720

R722

R727

R728

R729

R731

R732

C700

C703

C704

R749

C713R750

R751R752

R753

R754

TP619

R787

R788

R791

R792

Q602

Q603

Q604

Q605Q606

Q608

Q801

Q802

TP657

Q611

Q612

Q616 Q617

Q618

Q619

Q622

C788

C789

TP690

13

51

42

45

12

18

12

89

128

9

21

2627

202112

BE

15

15

1

13

13

BE

TB601

TB602

JW760

JW761JW762

JW763

JW764

JW765

JW766

JW767

JW768

JW769

JW770

JW771

JW773

JW774

JW775

JW777

JW779

JW780

JW781

CN601

JW782

CN602

JW783

CN603

JW784

CN604

JW785

CN605

JW786

CN606

JW787

CN60

7

CN608

CN801

R634

R635

R636

R638

C602C601

R641

R642

C802

CN632

CN633

C613 C614

R658

X801

C620

C621

C622

C623

R662

C626

C627C628

C822

C823

C630

C631

C632

C636

R674R675

C833

C641

RY601

RY602

RY601,RY602

C644

C646

JW601

JW602

JW603

JW604

JW605JW606

JW607

JW608

JW609

JW801C661

JW802

JW803

C663

JW610

JW804C664

JW611C665

JW612

JW613

C667

D607

D608

JW615

C669

D609

JW616

JW617

JW618

JW619

D610 C671

D611 D612

C673

JW620

JW621

ET601

C675

D615

ET602

JW622

C676

JW623

C677

JW624

C678

JW625

D619

JW626

JW627JW628

JW629

D620

JW630

JW631

JW632

JW633JW634

D629

JW635

JW636

JW637

JW638

JW639

D630

T801 JW640

JW641

JW647

JW649JW650

JW651

JW652

JW653

JW654

JW655

JW656

JW657

JW658

JW659

JW660

JW661

JW662

JW663

JW664

JW665

JW666

JW667

JW668

JW669

JW670

JW672

JW673

JW674

JW675

JW676

JW677

JW678

JW679

JW680

JW681

JW682

JW683

JW684

JW685

JW686

R717

R718

JW689

R719

JW690

R724

R725

R726

JW697

JW699

C714

JW700

JW701

JW702

JW703

JW704

JW705

Q601 JW706

JW708JW709

JW710

JW711

JW712

JW713

JW715

JW716

JW717

JW718

JW719

L601

L602

L603

L604

JW720

JW721

JW722JW723

JW724

L801

JW725

CF801

L802

JW726

L803

L804

JW728

Q624

L805

JW729

JW730

JW731 JW732

JW733

JW734

JW735

JW736JW737

JW738

FL801

JW739FL803

JW740JW741

JW742

JW743

JW744

JW750JW751 JW752

MAIN BOARD

IC602

IC801

(EC68:UK)(EXCEPT EC68:UK)

(EXCEPT EC68:UK)

D

J

REGBOARDW610

PTBOARDCN051

LOW AMPBOARDCN104 (CHASSIS)G(CHASSIS)

(EC78:AEP,RU)

(EC78:AEP,RU)

EC68/EC78:E2,E3,E51,MX,AR

EC68/EC78:E2,E3,E51,MX,AR

ANTENNAFM/AM

M601(FAN)ME

HI AMPBOARDCN151

L

R

(EC68)

SPEAKERIMPEDANCE

USE 6Ω

(EC78)

SPEAKERLOW FREQ.IMPEDANCE

USE 8Ω

SPEAKERHIGH FREQ.IMPEDANCE

USE 8Ω

L

R

1-875-488-

12, 13

(12, 13)

CJACK

BOARD

H LOW AMPBOARDCN102

FHI AMPBOARDCN152

KDECK

BOARD

L2PANELBOARDCN304

L1PANELBOARDCN304

MCD BOARD

CN201

(EXCEPT EC68:UK)

(EC78)

(SUFFIX-12)

(SUFFIX-13)

(EC78)

(EC78)

13

A

B

C

D

E

F

G

H

I

1 2 3 4 5 6 7 8 9

(EC68)

(EC78)

(Page 26)

(Page 31)

7-5. PRINTED WIRING BOARD - MAIN Board - • : Uses unleaded solder.• See page 23 for Circuit Boards Location.

(Page 30)(Page 30)

Ref. No. Location

• Semiconductor Location

D601 E-2 D602 E-6 D603 E-3 D604 G-3 D605 D-5 D606 E-6 D607 G-5 D608 F-5 D609 G-5 D610 F-5 D611 H-6 D612 H-6 D614 B-6 D615 D-7 D617 D-6 D618 E-6 D619 E-6 D620 E-7 D621 D-5 D622 D-5 D628 D-7 D629 H-6 D630 H-6 D631 E-7 D791 E-5 D801 B-3 D802 A-4 D803 B-4 D804 B-3 D805 B-2 D806 A-2

IC602 B-7 IC801 C-4

Q601 D-4 Q602 D-5 Q603 D-5 Q604 G-3 Q605 D-6 Q606 D-5 Q608 B-6 Q611 D-5 Q612 D-6 Q616 B-9 Q617 B-9 Q618 D-7 Q619 G-6 Q622 E-6 Q624 E-7 Q801 B-5 Q802 B-5

(Page 32)

(Page 24)

(Page 31)

(Page 34)

(Page 34)

(Page 35)

(Page 32)

Note: Refer to “SUFFIX-12/SUFFIX-13 DISCRIMINATION OF PANEL BOARD” (page 3) of the servicing notes for suffi x-12 and suffi x-13.

HCD-EC68/EC78

HCD-EC68/EC78

2828

CN152BOARDHI AMP

F

CN151HI AMP

EBOARD

BOARDCN102

LOW

HAMP

AMP

GLOW

CN104BOARD

BOARDPT

JCN051

MAIN(2/2)

BOARD

1

BOARDREG

W610

D

CJACK

BOARD

0

8.8

0.4 16.6

16.7

16.7

0

0.8

0.7

8.9

8.8

0

0

8.8

10.8

2.9

2.3

0

8.88.8

0

0

4.2

4.7

0

0.4

0.7

1

2

3

4

5

6

7

8

8PCN604

RELAY ON/OFF

V STBY

AC DETECT

VH(AC)

VL(AC)

GND

VL(AC)

VH(AC)

100V

C62

10.

1

100V

C62

30.

1

1N54

02-F

46D

607

1N54

02-F

46D

608

1N54

02-F

46D

610

1N5402-F46D609

25V2200C627

25V1000C628

MC2838-T112-1D602

2SC3052F-T1-LFQ606

2SC3052F-T1-LFQ605

2SC3052F-T1-LFQ604

R646100

R652100

R61410k

R61310k

R648 47k

R64

92.

2k

L602

L601

L603

L604

R606 10

10R615

10R612

10R611

10R

647

R60810

0.1C607

0.1C617

0.1C608

0.1C618

R63110

C6050.1

C6160.1

R60710

C6150.1

C6040.1

R63456

R63656

R63556

MC2838-T112-1D601

4.7kR610

4.7kR609

1

2

3

3PCN601

VDD+

GND

VDD+

2SC3052F-T1-LFQ602

2SC3052F-T1-LFQ603

1N4002BD615

2SC3052F-T1-LFQ619

0.022C642

56kR686

10kR677

10kR676

16V100

C631

2SC3052F-T1-LFQ608

R66747k

10V47

C630

1kR666

25V47

C601

10V100

C620

10kR691

TP601

TP602

TP609

TP612

TP613

TP614

TP615

TP617

TP618

TP619

TP621

TP622

TP623

TP624

TP625

TP626

TP627

TP628

TP629

TP630

TP631

TP632

TP633

TP634

TP635

R62

233

k

R61

710

kR

623

10k

R62

410

kR

618

10k

R62533k

R61

63.

9k

R6193.9k

50V

C67

733

00

50V

C67

833

00

15R724R725

15KTA1266GR-AT

Q601

50V4.7

C632

2.2kR690

27kR689

R63

047

k

50V4.7

C614

50V10

C613

R62610k

4.7kR627

15R726

JW750

1kR644

R62

04.

7k

R62

14.

7k

C61

10.

22

C61

20.

22

100kR639

100kR640

R633100k

R632100k

MC2838-T112-1D617

R6294.7k

R601470

R6504.7k

R651 4.7k

R7274.7k

R7284.7k

47kR678

1C695

1C696

47R674

47R675

100kR729

C6991000p

C7001000p

MAZ

8082

GM

LS0

D62

2

MAZ8043GMLS0D621

2SC3052F-T1-LFQ611

100kR669

10kR670

10kR628

4.7kR637

0.01C619

4700pC629

10kR672

50V3.3

C641

ISA1235AC1TP-1EFQ612

ISA1235AC1TP-1EFQ618

1

2

3

4

5

5PCN633

PA-GND

OUT-R

+VH

-VH

OUT-L

1

2

3

4

5

6

7

8

9

CN6059P

AUDIO-L

A-GND

AUDIO-R

HP-GND

HP-L

HP-R

AMP-ON

SP-RELAY

GND

1

2

3

4

5

5PCN602

IN-R

A-GND

IN-L

AMP-ON

PROTECT

1

2

3

4

5

5PCN603

R60

34.

7

1kR693

4.7kR692

R6730

10kR643

2.2kR645

50V

C62

222

00

50V

2200

C62

6

2W470R658

2W470R662

D604MA2J1110GLS0

D603MA2J1110GLS0

MA2J1110GLS0D614

MA2J1110GLS0D605

MA2J1110GLS0D628

E

ET601

1

2

3

4

5

5PCN632

PA-GND

OUT-R

+VH

-VH

OUT-L

JW751 JW752

MC2836D606

100kR604

25V22

C602

E

ET602

RY602

RY601

2A02MD611

2A02MD612

1kR663 10V

47C714

1N4002BD629

1N4002BD630

C6094700p

C6104700p

C6034700p C606

4700p

∗R638

∗R641

∗R642

R60

5 ∗

22kR687

4.7kR685

MA2J1110GLS0D631

100kR791

220k

R79

2M

A2J1

110G

LS0

D79

1

O-P

OW

ER

HP-L

HP-R

AMP-R

AMP-L

SP-RELAY

AMP-ON

AUDIO-L

HP-R

HP-L

AMP-STBY

AMP-L

AMP-R

O-POWER

PROTECT

PROTECT

AMP-ON

I-P-M

ON

I

PRO

TEC

T

CD

-AVR

AUDIO-R

VSTB

Y

1

3

2

MAIN BOARD (1/2)

(CHASSIS)

(CHASSIS)

1

OUT

GND

3

IN

+

-

-

+

R

L

TB602

+

-

TB601

L +

R -

(FAN) MM601

PROTECTDETECT

56 (EC68/EC78: E2,15 (EC78: AEP, RU)∗R605

Q601, 602FAN MOTOR DRIVE

DC DETECT

PROTECTDETECT

Q611, 612

RELAY DRIVE

E3, E51, MX, AR)

SPEAKERHIGH FREQ.IMPEDANCE

USE 8Ω

(EC78)

(EC78)

(EC68)

(EC78: AEP, RU)

EC68/EC78: E2,E3, E51, MX, AR

Q605, 606PROTECT DETECT

RELAY DRIVE

DC DETECT

56 (EC78)68 (EC68)

∗R638, 641, 642

LOW FREQ.SPEAKER

IMPEDANCEUSE 8Ω

USE 6ΩIMPEDANCE

SPEAKER

(EC78)

(EC68)

7 11

D

B

166 9 1710

F

5 153

G

1 1812

C

E

H

8

J

4 13

A

142

I

IN-R

A-GND

IN-L

AMP-ON

PROTECT

7-6. SCHEMATIC DIAGRAM - MAIN Board (1/2) -

(Page 30)

(Page 36)

(Page 29)

(Page 34)

(Page 34)

(Page 30)

(Page 31)

(Page 31)

HCD-EC68/EC78

HCD-EC68/EC78

2929

DECKBOARD

K

PANELBOARDCN304

L

CDBOARDCN201

M

MAIN

1BOARD

(1/2)

21

IC B/D

IC B/D

2.9

1.2

1.4

0

2.9

0

2.2

0

1.7

02.

3

1.6

2.3

1.8

0

1.8

3.6

33.

7

2.2

4.2

2.2

4.8

4.8

4.7

4.8

4.7

4.7

2.4

2.2

0.9

2.2

AM FREQUENCY

FM TRACKING

COVERAGE

COVERAGEFM FREQUENCY

AM TRACKING

FM DETECTOR

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

7.4

3.3

3.3

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

0

8.8 2.9

4.86.9

3.4

5.5

0

0.7

0.7

3.8

3.8

0

3.2

7.2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

21PCN608

AVDD (3.3V)

R-OUT

DACGND

L-OUT

AGND

RST

BUS0

BUS1

BUS2

BUS3

BUCK

CCE

REQ

SBSY

DGND

D-OUT

DVDD (3.3V)

VM (7V)

MGND

CD DRIVE MUTE

ZDET/LRCKIN

1N4002BD619

1N4002BD620

10V220

C669

100R722

1kR7162SC3052F-T1-LFQ622

22kR720

10V470

C673

16V100

C667

100

R71

5

50V1

C663

50V1

C664

220

R70

7

220R706

50V10

C661

50V1

C676

50V1

C675

1C

658

1C

656 C

654

1

C65

21

1C

650

1C

648

C651220p

2200

pC

647

1kR

697

C653220p

2200

pC

657

1kR

709

C6350.1

C64

30.

1

2SC3052Q617

2SC3052Q616

R6794.7k

R6804.7k

R68

210

k

R69

410

k

50V

1C64

4

50V

1C63

6 50V

1C

646

50V

1C

665

TP637

TP639

TP641

TP642

TP643

TP644

TP645

TP646

TP647

TP648

TP649

TP651

TP652

TP654

TP656

TP657

TP658

TP659

TP660

TP661

TP662

TP663

TP664

TP665

TP666

TP667

TP668

TP669

TP670

TP672

TP673

TP674

TP676

TP677

TP679

TP680

4.7k

R70

0

4.7k

R70

410

kR

696

10k

R70

8

C64

922

0p

1

2

3

4

5

6

7

8

9

9PCN606

9V

PB-Lch

PB-Rch

A-GND

REC-Lch

REC-Rch

M-GND

9V

I-TP-STATE

0.1C679

0.1C691

0.1C693

0.1C694

2200

pC

683

2200

pC

690

470p

C68

9

0.01C692

2200pC680

2200

pC

682

2200

pC

681

100R732

100R731

MAZ

8039

GH

LS0

D61

8

0.04

7C

638

0.04

7C

637

0.04

7C

634

0.04

7C

633

22kR684

22kR681

0.02

2C

674

5.6k

R75

1

5.6k

R75

3

R7010

R7020

4.7kR749

4.7kR750

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

2727P

CN607

16VC671100

C8381000p

C82

70.

047

C8205p

C81

60.

01

22R804

TP688

R84110k

10V220

C833

R809100

R824470

R83

12.

2k

R81

04.

7k

C82

222

50V

TP684

R811100k

R82

310

k

JW802

R8442.2k

R8450

R83822k

22R808

R8303.3k

C81

547

00p

R80222

C83710p

C8241

C8450.22

R81

933

k

C81

70.

01

R837100k

C8031

C8470.1

R816 1k

C83

50.

047

R82

94.

7k

6

2

1

34

AM IFT801

R820 4.7k

31 32 33 34 35 36

123456

3029282726

8 791011

21 22 23 24 25

12131415

2019

161718

LV23003VAIC801

AM R

F-IN

REG

FM-M

IX

GN

D1

AM-M

IX

VCC

1

AM IF

-IN

FM IF

-IN

P-D

ET

P-C

OM

P

FM-D

ET

L-O

UT

R-O

UT

VSS

CE

DI

CL

DO

XIN

XOU

T

VDD

MPX

-IN

FM D

ET-O

UT

AM D

ET-O

U

AGC PD

LP-IN

LP-O

UT

BO1

BO2

AM-O

SC

FM-O

SC

VCC

2

FM R

F-O

UT

GN

D

FM R

F-IN

R82

710

0k

R8400

C819470p

R81247k

R8214.7k

C8411000p

C82322010V

R805470k

16V100

C802C

830

2p

TP687

1 6

2

3 4

5

L805

C8310.47

R813470k

CF

G

IOFL801

TP690

1

2

34

6

L801

C8144700p

L803

C832 0.47

R8420

TP686

L804

C8480.1

R81

747

k

R8261k

R8366.8k

C8440.1

SV230-TB-ED804

C80818p

C82

810

0p

2SC3052F-T1-LFQ801

R81422k

R80722k

R81510k

R80647k

R8254.7k

R83

21M

C8400.1

JW801

C8261000p

BPFG

IOFL803

C82

90.

47

R83910

C80418p

CF8

01

C806470p

R84610

1

34

6

2

L802

TP689

TP683

TP685

C83

60.

022

R81

810

k

R843100k

JW80

4

C8050.47

SV230-TB-ED803

2SC3052F-T1-LFQ802

C8460.01

C8430.1

R801100

C8071

R8032.2k

JW803

C82

122

00p

C83410p

R822100 R847

0

1

2

3

3PCN801

AM

GND

FM

X801

75M

Hz

SVC347A-TL-ED801

R660 0

68R717

68R718

68R719

KTC3203Y-ATQ624

C64

510

00p

C65

522

0p

C66

610

00p

10pC659

10pC660

R68

32.

7k

R69

52.

7k

1000pC662

0.1C850

470p

C71

3

C80

910

00p

C81

010

00p

C81

110

00p

28272625242322

7 6 5 4 3 2 1

212016 17 18 19

13 12 11 10 89

15

14

BD3499FV-E2IC602 TC

/DM

P-R

TC/D

MP-

L

TUN

ER-R

TUN

ER-L

CD

-R

CD

-L

AUD

IO-R

AUD

IO-L

SEL-

L

SEL-

R

VOL-

R

VOL-

L

TRE-

L

TRE-

RBA

SSB-

L

BASS

A-L

BASS

A-R

BASS

B-R

OU

T-L

SB-L

SUR

R

SB-R

OU

T-R

VCC

SCLK

SDAT

A

GN

D

FIL

2200pC640

2200

pC

639

R78815k R

787

15k

470pC704

0.06

8C

684

0.06

8C

686

0.06

8C

685

0.06

8C

687

5.6kR752

5.6kR754

2200

pC

703

0.01

5C

789

0.01

5C

788

1PS226-115D802

1PS226-115D805

1PS226-115D806

CD

-R

CD

-L

AUD

IO-L

AUD

IO-R

CD-R

CD-L

TU-DO

TUNER-R

TUNER-L

I/O-BUS2

I/O-BUS0

TUN

ER-R

PB-L

PB-R

REC-L

REC-R

O-CD-M-MUTE

O-CD-BUCK

TU-CE

TU-CLK

TU-ANSD

TU-DO

I2C-DATA

I2C-CLK

5V-ON/TP-REC-MUTE

O-POWER

O-CD-M-MUTE

AMP-ON

O-CD-SBSY

O-CD-REQ

O-CD-CCE

O-CD-BUCK

I/O-BUS2

I/O-BUS0

I-P-MONI

O-CD-ON

TU-ANSD

PB-L

DMP-DET/USB-RST

TU-DI

O-CD-SBSY

O-CD-CCE

I/O-BUS3

I/O-BUS1

O-CD-RST

O-CD-RST

I/O-BUS1

I/O-BUS3

O-CD-REQ

REC

-R

REC

-L

DMP-DET/USB-RST

TU-CE

TU-DI

TU-CLK

5V-O

N/T

P-R

EC-M

UTE

O-C

D-O

N

I2C

-DAT

A

I2C

-CLK

AMP-

R

AMP-

L

TUN

ER-L

PB-R

CD

-AVR

USB

5V-O

N

VSTBY

1

3

2

MAIN BOARD (2/2)

I/O-I2C-DATA

I-TU-DO

I-TU-ANSD

O-TU-CLK

O-TU-DI

O-TU-CE

V-STBY

D-GND

O-CD-ON

I-P-MONI

O-CD-RST

I/O-BUS3

O-CD-BUCK

I/O-BUS0

O-CD-CCE

I/O-BUS1

O-CD-REQ

O-CD-SBSY

I/O-BUS2

O-AMP-ON

M-GND

O-CD-M-MUTE

I-DMP-DET/O-USB-RST

O-POWER

5V-ON/TP-REC-MUTE

I/O-I2C-CLK

O-SW-ON/I-TP-STATE

Q616, 617MUTING

INPUT SELECTOR,

IC602ELECTRICAL VOLUME

AM/FM-DET, OSC,

IC801MIX, PLL, IF AMP

Q622, 624+3.3V

REGULATOR

ANTENNAFM/AM

(EXCEPT EC68: UK)

+3V REGULATOR

+5V REGULATOR

(EC68: UK)

(EXCEPT EC68: UK)

(EXCEPT EC68: UK)

7 11

D

B

6 9 10

F

5 15

L

K

3

G

1 12

C

E

H

8

J

4 13

A

142

I

7-7. SCHEMATIC DIAGRAM - MAIN Board (2/2) -

(Page 33)

(Page 28)

• See page 37 for waveforms. • See page 38 for IC Block Diagrams.

(Page 26)

(Page 25)

HCD-EC68/EC78

HCD-EC68/EC78

3030

(1/2)MAIN

E

CN632

BOARD

MAINBOARD

F

CN602(1/2)

00200

35.20000

36.7

-36.

8

-35.

2

0 0

0

00

0

C1664700p

50V

C1511

50V

C1521

R17

522

0R

177

220

R17

822

0R

176

220

2WR1790.22

2W

R1800.22

R1852.2k

R1862.2k

2SA2026Q151

2SA2026Q152

MC2838-T112-1D151

1 98765432 151413121110

STK433-070IC151

-PR

E

-VC

C

+VC

C

LO+

LO-

RO

+

RO

-

+PRE SUB

GN

D

LI+

LI-

ST-B

Y

RI-

RI+

C156 100pC155100p

C15

93p

C16

03p

C17

0 ∗

C16

9 ∗

R1731k

R16

447

k

R16

347

k R15547k

R15647k

R1511.8k

R15

21.

8k

C153470p

C154470p

C1780.1

R15

91k

R16

01k

C1610.01

C1620.01

0.1C174

0.1C173

R172100

R1811.2k

R182 1.2k

R18322k

R18422k

TP151

TP152

TP153

TP154

TP155

TP156

TP157

TP158

TP159

TP160

R16

247

0

R16

147

0

1

2

3

4

5

5PCN152

PROTECT

AMP-ON

IN-L

A-GND

IN-R

MA2J1110GLS0D152

1

2

3

4

5

6

6PCN151

PA-GND

OUT-R

+VH

NC

-VH

OUT-L

50V

C15

81

50V

C15

71

0R171 470R196

470R195

C1750.1

C1760.1

R15322k R154

22k

OVER LOAD DETECTQ151,152

HI AMP BOARD IC151POWER AMP

∗C169, 170100 50V (EC78: E2, E3, E51, MX, AR)100 63V (EC78: AEP, RU)

7

D

B

6 9531

C

84

A

2

B E

B EQ151

Q152

R151

R152

R153

R154R155

R156

R159R160

R161R162

R163R164

R171

R172

R173

R175

R176

R177

R178

R181

R182

R183R184

R185 R186

C153 C154

C155 C156

R195

C159

R196

C160

C161

C162

C166C173

C174

C175C176

C178

D151

D152

JR151

1 15

16

4 51

2CN151

CN152

R179 R180

C151

C152

C157

C158C169

C170

JW151

JW152

JW153

JW154

JW155

JW156

JW157

IC151

EMAIN

BOARDCN632

FMAIN

BOARDCN602

1-875-496-

12, 13

(12, 13)

HI AMP BOARD

A

B

1 2 3 47-8. PRINTED WIRING BOARD - HI AMP Board (EC78) -

(Page 27)

• : Uses unleaded solder.• See page 23 for Circuit Boards Location.

7-9. SCHEMATIC DIAGRAM - HI AMP Board (EC78) -

(Page 28)

(Page 28)

(Page 27)

HCD-EC68/EC78

HCD-EC68/EC78

3131

B E

BEQ101

Q102

R101

R102

R103

R104

R105

R106R107

R108

R109 R110R111 R112

R113

R114

R122

R123

R125

R126

R127

R128

R131

R132

R133R134

R135 R136

C103

C104

C105R142 C106

R145

C109

R146

C110

C116

C123

C124

C125 C126

C128

D101

D103

JR132

1 15

4 51

2

15

CN102

CN104

R129 R130

C101 C102

C107 C108

C119C120

JW131JW132 JW133

JW134

JW135JW136

JW137

LOW AMP BOARD

IC101

G

HMAIN

BOARDCN603

MAINBOARDCN633

1-875-495-

12, 13

(12, 13)

A

B

1 2 3 47-10. PRINTED WIRING BOARD - LOW AMP Board - • : Uses unleaded solder.• See page 23 for Circuit Boards Location.

(Page 27)

(Page 27)

G

CN633

BOARD(1/2)MAIN MAIN

(1/2)CN603

BOARD

H

0

-36.

8

0 0

-35.

2

00 0

36.7

0 0

35.2

20

0

0

0

00

C1164700p

50V1

C10150V

1C102

220

R12

522

0R

127

220

R12

822

0R

126

2W0.22R129

2W0.22R130

2.2kR135

2.2kR136

2SA2026Q101

2SA2026Q102

MC2838-T112-1D101

C106 100pC105100p

3pC

109

3pC

110

∗C

120

C11

9∗

1kR123

47k

R11

4

47k

R11

3

47kR107

47kR108

25V

47C10

825V

47C

107

∗R103

∗R104

R105∗

R106∗

470pC103

470pC104

0.1C128

1kR

109

1kR

110

0.1C124

0.1C123

0R101

0R

102

22kR133

22kR134

1.2kR132

1.2kR131

R122100

1

2

3

4

5

5PCN104

PA-GND

OUT-R

+VH

-VH

OUT-L

TP101

TP102

TP103

TP104

TP105

TP107

TP108

TP109

TP110

TP111

470

R11

2

470

R11

1

1

2

3

4

5

5PCN102

PROTECT

AMP-ON

IN-L

A-GND

IN-RMA2J1110GLS0

D103

0R142

1 98765432 151413121110

STK433-070 (EC78)

IC101STK433-060 (EC68)

470R145

470R146

C1260.1

C1250.1

LOW AMP BOARD IC101POWER AMP

-PR

E

-VC

C

+VC

C

LO+

LO-

RO

+

RO

-

+PRE SUB

GN

D

LI-

LI+

ST-B

Y

RI-

RI+

Q101,102OVER LOAD DETECT

100 63V

100 50V∗C119, 120

(EC68/EC78: E2, E3, E51, MX, AR)

(EC78: AEP, RU)

∗R103, 1041.8k (EC78)3.3k (EC68)

∗R105, 1064.7k (EC68)22k (EC78)

B

A

D

C

76 9531 842

7-11. SCHEMATIC DIAGRAM - LOW AMP Board -

(Page 28) (Page 28)

HCD-EC68/EC78

HCD-EC68/EC78

3232

1100

30 31

8180

5051

B E

B E

B E

B E

B E

B E

B E

B E

B E

B E

BEBE BE BE

BE

B E

R400R401

R402

R405

R406

R412R413

R414

R415

R416R417

R418

R419

R420

R421

R422

R425

R426 R428

R446

R447

Q301

Q303

Q304Q305Q306

Q307

Q308Q310

Q311

Q312

Q313Q314 Q315Q316

Q317Q318

FB301R301

(EC68:UK)

R302R303

R304R305 R306

R307

R308

R309

R310

R312

R313

R314

R315

R316R317

R318

R319R320R321R322

R323

R324

R325

R326

R327

R328

R329

R330

R331R332

R333R334

R335

R336

R337

R338

R339

C301

R340

C304

R341R342

R343R344

C308

R345

R346

R347

R348

R349

C310

C311

C312

C313

R350

C314

R351

C315

R352

C316

R353

C317

R354

R355

C319

R356

R357R358

R359

C320C321

R360

R361

R362

R363

R364

C328

R365

R366

R367

R368

R369

C330

C332

R370

R371

R372

R373

R374

C338

R375

R376R377

R378

R379

C340C341

C342 R380

C344

R381

C345

R382

C346

R383

R384

R385

R386

R387

R389

C354

R390

C355R391

C356

R392

R396

D301

D302

D303

D304

D305

JR301

JR302

JR303

JR304

JR305

JR307

JR308

JR309

JR310

JR311

JR313JR315

SCR1B E

E B

137

112

27

26

1

212

13

3 2 1

112

12

JW370

JW371

JW372

JW373

JW374

JW375

JW376

JW377

JW378

JW37

9

JW380

JW381

JW382

JW383

JW384

JW385

JW386

JW387

JW388

JW389

JW390

JW391

JW392JW393 JW394JW395

JW396

JW397

JW398

JW399

JW400

JW401JW402

JW403

JW404

JW405

JW406

Q302

Q309

LED301

SW303

SW303

SW304SW305

TUNING +

W301

3 1

SW311

SW312

SW313

SW314

SW315

SW316

SW317

SW318

SW319

CN304

CN302 CN303

CN306

C302

C303C305

C306

C309

X301

X302

S301C343

JW301

JW302

JW303

JW304

JW305

JW306

JW307

JW308

JW309

JW310JW311

JW312

JW313

JW314

JW315

JW316

JW317

JW318

JW319

JW320

JW321

JW322

JW323

JW324

JW325

JW326

JW328

JW329

JW330

JW331

JW332

JW333

JW334

JW335

JW336

JW337

JW338

JW339

JW340

JW341

JW342

JW343

JW344

JW345

JW346

JW347

JW348

JW349

JW350

JW351

JW352

JW353

JW354

JW355

JW356

JW357

JW358

JW359

JW360

JW361

JW362

JW363JW364

JW365

JW366

JW367

JW368

JW369

PANEL BOARD

IC301

IC302

+

–

DSGX

PLAY MODE/TUNING MODE

FUNCTION

VOLUME

ROTARYENCODER

DISPLAY

EQ

-TUNING

CDSW311

EC68:RU,E2,E3,E51,MX,AR,AUS/EC78:RU,E2,E3,E51,MX,AR

LCD301LIQDID CRYSTAL DISPLAY

L1MAIN

BOARDCN607

B1KEY

POWERBOARDW401

STANDBY

1-875-490-

12

(12)

A1 KEY CDBOARD

CD MECHANISMDECK

A

B

C

D

E

F

G

1 2 3 4 5 6

(CHASSIS)

7-12. PRINTED WIRING BOARD - PANEL Board (Suffi x-12) -

(Page 34)


(Page 27)

(Page 34)

7-13. PRINTED WIRING BOARD - PANEL Board (Suffi x-13) -


1100

30 31

8180

5051

B E

B E

B E

B E

B E

B E

B E

B E

BE

B E

BEBE BE BE

BE

B E

R400R401

R402

R405

R406

R412R413

R414

R415

R416R417

R418

R419

R420

R421

R422

R425

R426 R428

R446

R447

Q301

Q303

Q304Q305Q306

Q307

Q308Q310

Q311

Q312

Q313Q314 Q315Q316

Q317Q318

FB301R301

(EC68:UK)

R302R303

R304R305 R306

R307

R308

R309

R310

R312

R313

R314

R315

R316R317

R318

R319R320R321R322

R323

R324

R325

R326

R327

R328

R329

R330

R331R332

R333R334

R335

R336

R337

R338

R339

C301

R340

C304

R341R342

R343R344 C308

R345

R346

R347

R348

R349

C310

C311

C312

C313

R350

C314

R351

C315

R352

C316

R353

C317

R354

R355

C319

R356

R357R358

R359

C320C321

R360

R361

R362

R363

R364

C328

R365

R366

R367

R368

R369

C330

C332

R370

R371

R372

R373

R374

C338

R375

R376

R377R378

R379

C340C341

C342 R380

C344

R381

C345

R382

C346

R383

R384

R385

R386

R387

R389

C354

R390

C355R391

C356

R392

R396

D301

D302

D303

D304

D305

JR301

JR302

JR303

JR304

JR305

JR307

JR308

JR309

JR310

JR311

JR313JR315

SCR1B E

E B

137

112

27

26

1

212

13

3 2 1

112

12

JW370

JW371

JW372

JW373

JW374

JW375

JW376

JW377

JW378

JW37

9

JW380

JW381

JW382

JW383

JW384

JW385

JW386

JW387

JW388

JW389

JW390

JW391

JW392JW393 JW394JW395

JW396

JW398

JW397JW399

JW400

JW401JW402

JW403

JW404

JW405

JW406

Q302

Q309

LED301

SW303

SW303

SW304SW305

TUNING +

W301

3 1

SW311

SW312

SW313

SW314

SW315

SW316

SW317

SW318

SW319

CN304

CN302 CN303

CN306

C302

C303C305

C306

C309

X301

X302

S301

C343

JW301

JW302

JW303

JW304

JW305

JW306

JW307

JW308

JW309

JW310JW311

JW312

JW313

JW314

JW315

JW316

JW317

JW318

JW319

JW320

JW321

JW322

JW323

JW324

JW325

JW326

JW328

JW329

JW330

JW331

JW332

JW333

JW334

JW335

JW336

JW337

JW338

JW339

JW340

JW341

JW342

JW343

JW344

JW345

JW346

JW347

JW348

JW349

JW350

JW351

JW352

JW353

JW354

JW355

JW356

JW357

JW358

JW359

JW360

JW361

JW362

JW363JW364

JW365

JW366

JW367

JW368

JW369

PANEL BOARD

IC301

IC302

+

–

DSGX

PLAY MODE/TUNING MODE

FUNCTION

VOLUME

ROTARYENCODER

DISPLAY

EQ

-TUNING

CDSW311

EC68:RU,E2,E3,E51,MX,AR,AUS/EC78:RU,E2,E3,E51,MX,AR

LCD301LIQDID CRYSTAL DISPLAY

L2MAIN

BOARDCN607

B2KEY

POWERBOARDW401

STANDBY

1-875-490-

13

(13)

A2 KEY CDBOARD

CD MECHANISMDECK

A

B

C

D

E

F

G

1 2 3 4 5 6

(CHASSIS)

(Page 34)

(Page 27)

(Page 34)


Ref. No. Location• Semiconductor Location

Ref. No. Location D301 D-4 D302 D-2 D303 D-3 D304 C-4 D305 E-5

IC301 B-3 IC302 A-5

LED301 A-1

Q301 B-1 Q302 D-4 Q303 D-4 Q304 D-3

Q305 D-2 Q306 D-2 Q307 E-5 Q308 E-5 Q309 E-5 Q310 E-5 Q311 F-5 Q312 F-5 Q313 F-4 Q314 F-4 Q315 F-5 Q316 F-4 Q317 F-4 Q318 F-4

HCD-EC68/EC78

HCD-EC68/EC78

3333

B

A

L(2/2)

CN607

BOARDMAIN

BOARDW401

KEYPOWER

CDKEY

BOARD

31

32

(SUFFIX-12)(SUFFIX-13)

(SUFFIX-12)(SUFFIX-13)

1.3

3.1

1.3

0

3.3

2.9 3

1.5

3.3

3.3

0.9

3.3

3.3 0 3

2.8 1

3.3

3.3

1.3

3.1

3.1

0

3.3

0

0

3.1

0

0

1

1.4

3.1

0

0

0

0

0

3.3

0

0

3.1

3.1

3.1

3.1

3.1

1.3

1.3

1.3

1.3

1.3

1.3

2.6

0

0

0

3.1

3.1

3.1

0

3.9

0.7

8.1

4.5

0

0

0.7

0.1

5.7

0

3.1

3.3

3.9

7.5

4.94.9

4.8 4.8 4.8

4.94.9

000 00

5.1

7.1

7.1

8.1 4.9

5.1

7.7

4.9

0

4.8

4.8 4.8 4.84.8

4.8 4.84.8 4.8

3.1

3.1

0 (1

.3) <

<3.1

>> [0

]

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.1

1.3

1.3

1.3

1.3

1.3

1.3

1.3

2SC3052F-T1-LFQ304

2SC3052F-T1-LFQ303

R33210k

C30

10.

1

2SC3052F-T1-LFQ305

Q306RT1N441C-TP-1

R337220

R3382.2

R339 2.2

R3404.7k

R34

222

0kC3080.1

R34

347

0k

Q308RT1N441C

Q3102SC3052

C30950V22

R34647k

R347470

R35

447

k

R34847k

R349470

R35047k

R351470

R35247k

R353470

R35

847

k

R36

147

k

R35

747

k

R36

222

k

R36

422

k

R36

322

k

R36

722

k

R36

522

k

C320 22p

C3210.1

R327100

R326100

R32510

Q3012SC3052F-T1-LF

R32810k

R38110k C313

0.22

R380470

R38410k

R38310k

R40

210

0k

C338 1000p

100R301

R302 100

R303 100

R304 100

R305 100

R306 100

R307 100

R308 100

R309 100

R310 100

R312 100

R313 100

R314 100

R315 100

R316 100

R317 100

R318 100

R319 100

R320 100

R321 100

R322 100

R323 100

C31

00.

1

C3110.1

C3120.1

C330 0.1

1L0341Y23E0CA602LED301

Q309KTA1273

R34133k

Q3172SC3440

Q3152SC3440

Q3182SC3440

Q3162SC3440

Q3132SA1365

Q3112SA1365

Q3142SA1365

Q3122SA1365

KTA1271Y-ATQ302

R33410k

R331100k

C30210

50V

C341 0.1

R3454.7k

R3442.7k

R324 100

R333100k

R33610k

C30510

50V

C30310

50V

C3171000p

R3691k

R3701k

R3711k

R3721k

R3741k

R3851k

R3861k

R3871k

27k

R41

9

100kR420

R39010k

R39210k

R389*

R391*

TP301

TP302

TP303

TP304

TP305

TP306

TP307

TP308

TP309

TP310

TP312

TP313

TP314

TP315

TP316

TP317

TP318

TP319

TP320

TP321

TP322

TP323

TP324

TP325

TP326

TP327

TP328

TP329

TP330

TP331

TP333

TP334

TP335

TP336

TP337

TP38

TP339

TP340

TP341

TP343

R3292.2k

1

2

3

4

5

6

7

8

9

10

11

12

13

13PCN302

M2-

M2+

M1-

M1+

SW-COM

SW3

SW1

I-CHACK

SW2

I-CLOSE

I-STOCK

I-OPEN

NC

R330680

R42110k

50VC343

22

C31

40.

047

C31

50.

047

C31

60.

047

C3280.047

MAZ

8043

GM

LS0

D30

1

R4142.2k

R37610k

R37710k

R37968k

R38210k

4.7kR422

C3440.047

R33522k

TP348

R36810k

R426100k

R36610k

R42847k

1.2kR405

1.5kR406

C3450.047

R3750

R3730

1.2kR412

1.5kR413R415

2.7kR4163.9k

R4176.8k

R41815k

0.04

7C

346

Q307ISA1235

C3040.1

R3601k

R3591k

R3561k

R3551k

C3066.3V470

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

27PCN304

R40

01k

R40

11k

C332 0.01

R37833k

MC2836D303

1 7 8 9 10 11 125 6 14 19181713 16 2015 23 24 2721 28262522 31 33 3530 32 3634292 3 4 37

LCD301

4.7kR446

4.7kR447

VCC

OUT

GND

NJL24H400BIC302

1

3

2

MA2J1110GLS0D305

MA2

J111

0GLS

0D

302

MA2J1110GLS0D304

FB301 C3421000p

4700pC354

4700

pC

355

C3560.1

32.768kHzX301

C31918p

R396 330k

S301

2

3 1

6MHzX302

12

34

56

78

910

1112

1314

1516

1718

1920

2122

2324

2526

2728

2930

31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

5152

5354

5556

5758

5960

6162

6364

6566

6768

6970

7172

7374

7576

7778

7980

81828384858687888990919293949596979899100

MB90803PF-G-135E1IC301

SEG32

O-AMP-ON

O-POWER

O-CD-ON

I-3CD-SW3/O-CDM-CLOSE

I-3CD-SW2/NC

I-3CD-SW1/O-CDM-OPEN

O-3CD-M1+/O-CDM-M1+

I-RMC

O-3CD-M1-/O-CDM-M1-

O-3CD-M2+/NC

O-3CD-M2-/NC

XOA

X1A

VCC

VSS

I/O-CD-BUS0

I/O-CD-BUS1

I/O-CD-BUS2

I/O-CD-BUS3

I-3CD-CHACK

I-3CD-STOCK

O-DR-MUTE

I-REQ

O-CD-BUCK

O-CD-CCE

O-CD-RST

O-LED-STBYI-USB-TXD/I-DMP-TXDI-USB-DO/I-DMP-5V-DET

O-USB-RXD/O-DMP-RXD AV

CC

I-TU

-DO

O-U

SB-D

I/5V-

ON

/O-T

P-R

EC-M

UTE

AVSS

I-P-M

ON

I

I-KEY

1

I-KEY

2

I-TU

-AN

SD

O-U

SB-S

EL1_

2/O

-SW

-ON

/I-TP

-STA

TE

I-KEY

-WAK

E-U

P/VO

L

I-HO

LD

O-C

D-S

BSY

GN

D

I-DM

P-D

ET/O

-USB

-RST

I-MO

DEL

I-SU

FFIX

I-1C

D-C

LOSE

_OPE

N/N

C

I/O-I2

C-D

ATA

I/O-I2

C-C

LK MD2

MD1

MD0

I-RST

O-TU-CE

O-TU-CLK

O-TU-DI

VLCD

COM0

COM1

CMO2

CMO3

SEG0

SEG1

VCC

VSS

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

SEG12

SEG13

SEG14

SEG15

SEG

16

SEG

17

SEG

18

SEG

19

SEG

20

SEG

21

SEG

22

SEG

23

SEG

24

VCC

VSSX1X0

SEG

25

SEG

26

SEG

27

SEG

28

SEG

29

SEG

30

SEG

31

C34

00.

1

1

2

CN3032P

KEY-1

GND

R425 0

1

2

2PCN306

1KEY-0

GND

I/O-BUS0

I/O-BUS1

I/O-BUS2

I/O-BUS3

O-CD-BUCK

O-CD-CCE

I-REQ

O-CD-SBSY

O-AMP-ON

O-DR-MUTE

O-POWER

I/O-I2C-CLK

I/O-I2C-DATA

I-TU-DO

I-TU-ANSD

O-TU-CLK

O-TU-DI

O-TU-CE

I-P-MONI

O-CD-RST

I-SW2

I-CHACK

I-SW1/CDM-OPEN

CO

M1

CO

M2

CO

M3

SEG

0

SEG

1

SEG

2

SEG

3

SEG

4

SEG

5

SEG

6

SEG

7

SEG

8

SEG

9

SEG

10

SEG

11

SEG

12

SEG

13

SEG

14

SEG

15

SEG

16

SEG

17

SEG

18

SEG

19

SEG

20

SEG

21

SEG

22

SEG

23

SEG

24

SEG

25

SEG

26

SEG

27

SEG

28

SEG

29

SEG

30

SEG

31

O-M

2-

O-M

2+

O-M

1-/C

DM

-M-

I-HOLD

O-AMP-ON

O-CD-ON

O-M2-

LED-STBY

O-CD-BUCK

O-CD-CCE

M2+

M1-

I-REQ

O-DR-MUTE

SEG

32

5V-ON/O-TP-REC-MUTE

SEG

32

I-CLOSE/OPEN

I-CLO

SE/O

PEN

I-STOCK

O-CD-RST

I-RST

SEG15

SEG14

SEG13

SEG12

SEG11

SEG10

SEG9

SEG8

SEG7

SEG6

SEG5

SEG4

SEG3

SEG2

SEG1

SEG0

COM3

COM2

COM1

COM0

O-TU-CLK

O-TU-CE

SEG

31

SEG

30

SEG

29

SEG

28

SEG

27

SEG

26

SEG

25

SEG

16

SEG

17

SEG

18

SEG

19

SEG

20

SEG

21

SEG

22

SEG

23

SEG

24

5V-O

N/O

-TP-

REC

-MU

TE

O-C

D-S

BSY

O-CD-ON

O-POWER

CO

M0

I-STOCK

I-CHACK

I/O-BUS0

I/O-BUS1

I/O-BUS2

I/O-BUS3

I-SW1/CDM-OPEN

O-M2+

I-RMC

I-SW2

LED

-STB

Y

O-M

1+/C

DM

-M+

O-SW-ON/I-TP-STATE

M1+

M1-

I-SW3/CDM-CLOSE

I-KEY-WAKE-UP/VOL

M2-

M1+

I-MO

DEL

I-SU

FIX

I-RMC

I-TU

-DO

I-KEY

1

I-KEY

2

I-TU

-AN

SD

I-KEY

-WAK

E-U

P/VO

L

I-HO

LD

I-SU

FIX

I-MO

DEL

I/O-I2

C-D

ATA

I/O-I2

C-C

LK

I-SW3/CDM-CLOSE

M2+

O-TU-DI

I-RST

I-P-M

ON

I

O-D

MP-

RXD

O-S

W-O

N/I-

TP-S

TATE

M2-

I-KEY2

I-KEY1

REMOTE CONTROL

IC302

SW311SW312SW313SW314SW315SW316SW317SW318 SW319DISPLAY

PANEL BOARD

SYSTEM CONTROLLER

IC301

LIQUID CRYSTAL DISPLAY

W301

O-TU-CE

O-TU-DI

O-TU-CLK

I-TU-ANSD

I-TU-DO

I/O-I2C-DATA

O-SW-ON/I-TP-STATE

I/O-I2C-CLK

5V-ON/TP-REC-MUTE

O-POWER

I-DMP-DET/O-USB-RST

O-CD-M-MUTE

O-AMP-ON

O-CD-SBSY

O-CD-REQ

O-CD-CCE

O-CD-BUCK

I/O-BUS3

O-CD-RST

I-P-MONI

O-CD-ON

D-GND

V-STBY

M-GND

I/O-BUS2

I/O-BUS1

I/O-BUS0STANDBY

/

LED DRIVE

Q302-304+4V REGULATOR

Q305,306VOLTAGE DETECT

Q311-318MOTOR DRIVE

*R38927k (EC68: UK)47k (EC68: AEP, RU, E2, E3, E51, MX, AR, AUS)100k (EC78)

*R3911k (EC68: AEP, UK, RU/EC78: AEP, RU)2.2k (EC68: AUS)5.6k (EC68: E3/EC78: E3)

100k (EC68: E51, MX, AR/EC78: E51, MX, AR)47k (EC68: E2/EC78: E2)

EC78: RU, E2, E3, E51,

EC68: RU, E2, E3, E51,MX, AR, AUS/

MX, AR

(EC68: UK)

(CHASSIS)

REGULATORQ307-310

CD

DECKMECHANISM

RECEIVER

ROTARY ENCODERVOLUME

-

TUNING +SW305

FUNCTIONSW304

SW303

- TUNING

DSGX EQPLAY MODETUNING MODE

+ CD

7 11

D

B

166 9 1710

F

5 15

L

K

3

G

1 12

C

E

H

8

J

4 13

A

142

I

7-14. SCHEMATIC DIAGRAM - PANEL Board - • See page 37 for waveforms. • See page 40 for IC Pin Function Description.

(Page 29)

(Page 34)

(Page 34)


HCD-EC68/EC78

HCD-EC68/EC78

3434

R407

R408

R409

R410

R411

KEY CD BOARD

R491

R492

1 9

C491 C495

C496

JACK BOARD

C698

13 2

1 2

SW306

SW307

SW308

SW309

SW310

13

SW301

W401

KEY POWER BOARD

JW491

1 3

JW614W610

REG BOARD

IC601

A2PANELBOARDCN303

A1PANELBOARDCN303

1-875-492-

12, 13

(12, 13)

12, 13

(12, 13)

12, 13

(12, 13)

12, 13

(12, 13)

DISC 1

DISC SKIP/EX-CHANGEDISC 2

DISC 3

D MAINBOARD

B2PANELBOARDCN306

B1PANELBOARDCN306

C MAINBOARDCN605

1-875-489-

1-87

5-49

3-

1-875-491-

STANDBY

J492

J491

PHONES

AUDIO IN

B

A

C

D

E

1 2 3 4 5

(NC)

(SUFFIX-12)

(SUFFIX-12)

(SUFFIX-13)

(SUFFIX-13)

7-15. PRINTED WIRING BOARDS - KEY Section -

(Page 27)

(Page 32)


(Page 32)

(Page 27)

PANELCN303BOARD

A

(1/2)BOARD

CMAIN

CN605

MAIN

DBOARD(1/2)

PANELCN306BOARD

B

17.1 8.9

R4072.2k TP415

TP416

R4082.7k

R4093.9k

R4106.8k

R41115k

KEY CD BOARD

DISC 1SW306SW307

DISC 2SW308DISC 3

SW309SW310DISC SKIP/EX-CHANGE

KEY-1

GND

1

2

J491AUDIO IN

C4910.1

C4951000p

C4961000p

TP491

TP492

TP493

TP494

TP495

TP496

TP497

TP498

J492PHONES

R49122k

R49222k

JACK BOARD

1

A-GND

AUDIO-L

HP-GND

AUDIO-R

HP-R

HP-L

SP-RELAY

AMP-ON

9 GND

0.1C698

I OG

TA7809SIC601

1 3

2

REG BOARD

+9V REGULATOR

IC601

TP409

TP4101

2

3

3PW401

KEY-0

GND

KEY-SW-ON (NC)

KEY POWER BOARD

STANDBY

SW301

/

B

531

C

D

E

F

G

4

A

2

3

2

1

3PW610

OUT

GND

IN

7-16. SCHEMATIC DIAGRAM - KEY Section -

(Page 28)

(Page 33)

(Page 33)

(Page 28)


(Page 32)

(Page 32)

HCD-EC68/EC78

HCD-EC68/EC78

3535

C051

C052

D051

D052

D055

18

13

S001

CN05

1

CN05

3

RY001

RY001

RY002

RY002

JW003

JW00

4

JW00

5

JW006

JW00

7

JW008

JW009

JW01

0

JW01

1

JW01

2

JW01

3

JW01

4

JW01

5

JW01

6

JW01

7

JW01

8JW01

9

JW02

0

W00

1

PT BOARD

230-240V 220V 120V–2 –1

∗NOT REPLACEABLE:BUILD IN TRANSFORMER

∗

EC68:E2,E3,E51,AR,AUS/

PT001 (EC68:AEP,UK,RU/EC78:AEP,RU)

EC78:E2,E3,E51,AR

PT002 (EC68:E2,E3,E51,MX,AR,AUS/EC78:E2,E3,E51,MX,AR)

SUB POWER TRANSFORMER

(EC68:AUS)

EC68:E2,E3,E51,MX,AR,AUS/EC78:E2,E3,E51,MX,AR



EC68:E2,E3,E51,AR,AUS/EC78:E2,E3,E51,AR

EC68:AEP,UK,RU/EC78:AEP,RU



EC68:MX/EC78:MX

EC68:AR/EC78:AR EC68:MX/

EC78:MX

(EC68:E2,E3,E51/EC78:E2,E3,E51)

VOLTAGE SELECTOR

(AC IN)

PT003(EC68)PT004(EC78)MAIN POWER

TRANSFORMER

J MAINBOARDCN604

1-875-494-

12, 13

(12, 13)

B

C

D

E

F

1 2 3 4 5

A

(CHASSIS)

7-17. PRINTED WIRING BOARD - PT Board - • : Uses unleaded solder.• See page 23 for Circuit Boards Location.

(Page 27)

HCD-EC68/EC78

HCD-EC68/EC78

3636

(1/2)

JMAIN

BOARD

CN604

C0510.1

MC2836D051

MC2838-T112-1D052

RY001

1

2

3

4

5

6

7

8

8PCN051

RELAY ON/OFF

V STBY

AC DETECT

VH(AC)

VL(AC)

GND

VL(AC)

VH(AC)

RY002

MC2838-T112-1D055

JW006

JW004

JW009

JW005

JW003JW

007

JW00

8

1

3

3PCN053

LIVE

NEUTRAL

PT002

PT003

3

11

12

13

14

5

10

2

4

6

PT004

3

11

12

13

14

1

5

10

2

4

6

1

3

4

5

6

7

8

9

2

PT001

0.1C052

PT BOARD

EC68: E2, E3, E51, MX, AR, AUS/EC78: E2, E3, E51, MX, AREC78: AEP, RU

EC68: AEP, UK, RU/

EC68: MX/EC78: MX

EC68: E2, E3, E51, AR, AUS/EC78: E2, E3, E51, AR

(EC68:AUS)

EC78: MXEC68: MX/

EC78: AREC68: AR/

VOLTAGESELECTOR

S001

120V

220V

230-240V

-1

-2

EC68: E2, E3, E51/EC78: E2, E3, E51

(AC IN)

EC78: AEP, RUEC68: AEP, UK, RU/

EC78: E2, E3, E51, MX, AREC68: E2, E3, E51, MX, AR, AUS/



MAIN POWER TRANSFORMER

MAIN POWER TRANSFORMER

(EC78: E2, E3, E51, AR)

(EC68)

(EC78)

∗

∗

∗NOT REPLACEABLE:BUILD IN TRANSFORMER

W001

(CHASSIS)

7 11

D

B

6 9 10

F

53

G

1 12

C

E

84 13

A

2

1

3

4

5

6

7

8

9

2

1

(EC68: E2, E3, E51, AR, AUS) (Page 28)

7-18. SCHEMATIC DIAGRAM - PT Board -

HCD-EC68/EC78

37

• Waveforms– CD Board –

IC101 (XO)(CD play mode)

1 V/DIV, 20 ns/DIV59.1 ns

3.3 Vp-p

CN501 (EH)

20 V/DIV, 5 μs/DIV14 μs

56 Vp-p

IC101 (RFi)(CD play mode)

200 mV/DIV, 500 ns/DIV

0.5 to 1.3 Vp-p

– DECK Board –

IC301 (X1)

1 V/DIV, 50 ns/DIV166 ns

3 Vp-p

IC301 (X1A)

1 V/DIV, 10 μs/DIV30.5 μs

3 Vp-p

– MAIN Board –

– PANEL Board –

IC801 (XIN)

500 mV/DIV, 5 μs/DIV13.3 μs

1 Vp-p

HCD-EC68/EC78

38

• IC Block Diagrams– CD Board –

IC201 TK63115SCL-G@GT IC401 BA5826SFP-E2

1

2

3

4

5

6

7

8

9

10

11

1213

14

28

27

26

24

23

22

21

20

19

18

17

16

15

25

LEVELSHIFT

LEVELSHIFT

THERMALSHUT-DOWNREGULATORBIAS TRAP

LEVELSHIFT

MUTE

LEVELSHIFT D.BUFF

D.BUFF

D.BUFFGND

IN4

IN4'

BIAS

VCC

VCC

IN3'

IN3

VO3(+)

VO3(–)

VO4(–)

VO4(+)

RESETt

OPIN

VO1(–)

REGB

VO1(+)

IN1

RESET

REGOUT

MUTE

GND

IN2'

IN2

VO2(+)

VO2(–)GND

OPOUT

D.BUFF

D.BUFF

D.BUFF

D.BUFF

D.BUFF

REGU

LATO

R

VCC

VCC

THERMAL &OVER CURRENT

PROTECTION

VOLTAGEREFERENCE

ON/OFFCONTROL

VIN 1

GND 2

VCONT 3 NC4

VOUT5+–

– MAIN Board –

IC602 BD3499FV-E2

1A1

18 BCB117 BCA116 BCA2

20 SB2

19 OUT2

22 SB121 SR

24 VCC

23 OUT1

26 SDA25 SCL

28 FIL27 GND

15 BCB2

2A23B1

5C16C2

4B2

11VOL112VOL2

13TC214TC1

7D18D2

9SEL210SEL1

INPUTSELECTOR

TREBLE/BASS

INVERTER

VOLUME

INPUTGAIN

SURROUND

PC BUSLOGIC

HCD-EC68/EC78

39

IC801 LV23003VA

1AM RF-IN

3FM-MIX

2REG

6VCC1

4GND1

AMRF

AMMIX

AMDET

AMIF

FMDET

FMIF

SD

FF

VCO

FF

FF

ST

TRIG

STSW

FMMIX FM

OSC

AMOSC

OSCBUFFER

FMS-METER

DECODER

PHASECOMPARATOR

MUTE

PROGRAMMABLEDIVIDER

REFERENCEDIVIDER

UNLOCKDETECTOR

SWALLOWCOUNTER

POWER ONRESET

DATA SHIFTREGISTER

LATCH

PHASEDETECTOR

CHARGEPUMP

UNIVERSALCOUNTER

5AM-MIX

7AMIF-IN

8FMIF-IN

9P-DET

10P-COMP11FM-DET12L-OUT13R-OUT14VSS

FMRF

36 FM RF-IN35 GND234 FMRF-OUT33 VCC2

30 BO229 BO1

32 FM-OSC

31 AM-OSC

28 LP-OUT27 LP-IN

23 FMDET-OUT

15CE16DI17CL18DO

22 MPX-IN

19 XIN20 XOUT

21 VDD

26 PD25 AGC

24 AMDET-OUT

LOW-PASSFILTER

AGC

IFBUFFER

PIROTDET

CCBI/F

HCD-EC68/EC78

40

• IC Pin Function DescriptionCD BOARD IC101 TC94A70FG-006 (D, HZ (CD-MP3 PROCESSOR)

Pin No. Pin Name I/O Description1 AVSS3 - Ground terminal2 RFZi I RF ripple zero crossing signal input terminal3 RFRP O RF ripple signal output terminal4 SBAD/RFDC O Sub beam addition signal or RF peak detection signal output terminal Not used5 FEi O Focus error signal output terminal Not used6 TEi O Tracking error signal output terminal7 TEZi I Tracking error zero crossing signal input terminal8 AVDD3 - Power supply terminal (+3.3 V)9 FOo O Focus coil drive signal output terminal

10 TRo O Tracking coil drive signal output terminal11 VREF I Reference voltage (+1.65V) input terminal12 FMo O Sled motor drive signal output terminal13 DMo O Spindle motor drive signal output terminal14 VSSP3 - Ground terminal15 VCOi I VCO control voltage input terminal16 VDDP3 - Power supply terminal (+3.3 V)17 VDD1 - Power supply terminal (+1.5 V)18 VSS - Ground terminal19 FGiN I FG signal input terminal Not used20 IO0 (/HSO) I Disc inner position detection signal input terminal21 IO1 (/UHSO) O Not used22 XVSS3 - Ground terminal23 XI I System clock input terminal (16.9344 MHz)24 XO O System clock output terminal (16.9344 MHz)25 XVDD3 - Power supply terminal (+3.3 V)26 DVSS3 - Ground terminal27 RO O Audio data (R-ch) output to the input selector28 DVDD3 - Power supply terminal (+3.3 V)29 DVR O Reference voltage (+1.65V) output terminal30 LO O Audio data (L-ch) output to the input selector31 DVSS3 - Ground terminal32 VDDT3 - Power supply terminal (+3.3 V)33 VSS1 - Ground terminal34 VDD1 - Power supply terminal (+1.5 V)35 VDDM1 - Power supply terminal (+1.5 V)36 SRAMSTB I S-RAM standby mode control signal input terminal Fixed at "L" in this set37 XRST I Reset signal input from the system controller "L": reset

38, 39 BUS0, BUS1 I Serial data input from the system controller40 BUS2 (SO) I Serial data input from the system controller41 BUS3 (SI) I Serial data input from the system controller 42 BUCK (CLK) I Serial data transfer clock signal input from the system controller43 XCCE I Chip enable signal input from the system controller44 TEST I Setting terminal for test mode Normally fi xed at "L"45 IRQ I Interrupt request signal input terminal Not used46 AoUT3 (PO4) O Request signal output terminal Not used47 AoUT2 (PO5) O Audio data output terminal Not used48 PIO0 O Request signal output to the system controller

49, 50 PIO1, PIO2 O Not used51 PIO3 I Gate signal input terminal Not used52 VSS1 - Ground terminal53 VDDT3 - Power supply terminal (+3.3 V)54 SBSY O Subcode block sync signal output to the system controller55 SBOK/FOK O Not used56 IPF O Not used57 SFSY/LOCK O Not used58 ZDET O Zero detection signal output terminal Not used59 GPIN I Not used60 MS I Microcomputer interface mode selection signal input terminal Fixed at "H" in this set

HCD-EC68/EC78

41

Pin No. Pin Name I/O Description61 DOUT (PO6) O Digital audio data output terminal Not used62 AOUT (PO7) O Audio data output terminal Not used63 BCK (PO8) O Bit clock signal output terminal Not used64 LRCK (PO9) O L/R sampling clock signal output terminal Not used65 AIN (PI4) I Digital audio data input terminal Not used66 BCKi (PI5) I Bit clock signal input terminal Not used67 LRCKi (PI6) I L/R sampling clock signal input terminal Not used68 VDD1 - Power supply terminal (+1.5 V)69 VSS - Ground terminal70 AWRC - Not used71 PVDD3 - Power supply terminal (+3.3 V)72 PDO O Phase error margin signal between EFM signal and PLCK signal output terminal73 TMAXS O TMAX detection signal output terminal Not used74 TMAX O TMAX detection signal output terminal75 LPFN I Inverted signal input from the operation amplifi er for PLL loop fi lter76 LPFo O Signal output from the operation amplifi er for PLL loop fi lter77 PVREF I Reference voltage (+1.65V) input terminal78 VCOF O VCO fi lter output terminal79 PVSS3 - Ground terminal80 SLCo O EFM slice level output terminal81 RFi I RF signal input terminal82 RFRPi I RF ripple signal input terminal83 RFEQo O EFM slice level output terminal84 VRo O Reference voltage (+1.65V) output terminal85 RESiN O External resistor connection terminal86 VMDiR O Reference voltage (+1.65V) output terminal for automatic power control circuit87 TESTR O Low-pass fi lter terminal for RFEQO offset correction88 AGCi I RF signal amplitude adjustment amplifi cation input terminal89 RFo O RF signal generation amplifi cation output terminal90 RVDD3 - Power supply terminal (+3.3 V)

91 LDo O Laser diode on/off control signal output to the automatic power control circuit "H": laser diode on

92 MDi I Light amount monitor input from the laser diode of optical pick-up block93 RVSS3 - Ground terminal94 FNi2 (C) I Main beam (C) input from the optical pick-up block95 FNi1 (A) I Main beam (A) input from the optical pick-up block96 FPi2 (D) I Main beam (D) input from the optical pick-up block97 FPi1 (B) I Main beam (B) input from the optical pick-up block98 TPi (F) I Sub beam (F) input from the optical pick-up block99 TNPC O External capacitor connection terminal100 TNi (E) I Sub beam (E) input from the optical pick-up block

HCD-EC68/EC78

42

PANEL BOARD IC301 MB90803PF-G-135E1 (SYSTEM CONTROLLER)Pin No. Pin Name I/O Description

1 SEG32 O Segment drive signal output to the liquid crystal display2 O-AMP-ON O Relay drive signal output terminal (for speaker)3 O-POWER O Main power on/off control signal output terminal "H": on4 O-CD-ON O CD power on/off control signal output terminal "H": on

5 to 7

I-3CD-SW3/O-CDM-CLOSE, I-3CD-SW2/

NC, I-3CD-SW1/O-CDM-OPEN

I Detection switch input from the CD mechanism deck

8 O-3CD-M1+/O-CDM-M1+ O Motr drive signal output terminal Not used

9 I-RMC I Remote control signal input from the remote control receiver

10 O-3CD-M1-/O-CDM-M1- O Motr drive signal output terminal Not used

11, 12 O-3CD-M2+/NC, O-3CD-M2-/NC O Motr drive signal output to the CD mechanism deck

13 X0A I Sub system clock input terminal (32.768 kHz)14 X1A O Sub system clock output terminal (32.768 kHz)15 VCC - Power supply terminal (+3.1V)16 VSS - Ground terminal

17 to 20 I/O-CD-BUS0 to I/O-CD-BUS3 O Serial data output to the CD-MP3 processor

21 I-3CD-CHACK I Disc chucking detection switch input from the CD mechanism deck22 I-3CD-STOCK I Disc stocking detection switch input from the CD mechanism deck23 O-DR-MUTE O Muting signal output to the motor/coil driver24 I-REQ I Request signal input from the CD-MP3 processor25 O-CD-BUCK O Serial data transfer clock signal output to the CD-MP3 processor26 O-CD-CCE O Chip enable signal output to the CD-MP3 processor27 O-CD-RST O System reset signal output to the CD-MP3 processor "L": reset28 O-LED-STBY O LED drive signal output terminal for STANDBY indicater29 I-USB-TXD/I-DMP-TXD I Serial data input terminal Not used

30 I-USB-DO/I-DMP-5V-DET I Power voltage detection signal input terminal Not used

31 O-USB-RXD/O-DMP-RXD O Serial data output terminal Not used

32 AVCC - Power supply terminal (+3.1V)33 I-TU-DO I Serial data input from the AM/FM DET

34 O-USB-DI/5V-ON/O-TP-REC-MUTE O Muting signal output to the REC muting circuit

35 AVSS - Ground terminal36 I-P-MONI I Power monitor signal input terminal

37, 38 I-KEY1, I-KEY2 I Front panel key input terminal (A/D input)39 I-TU-ANSD I Power monitor signal input terminal

40 O-USB-SEL1_2/O-SW-ON/I-TP-STATE I Tape syate detection signal input terminal

41 I-KEY-WAKE-UP/VOL I System wake up signal input terminal42 I-HOLD I Hold signal input terminal43 O-CD-SBSY I Subcode block sync signal input from the CD-MP3 processor44 GND - Ground terminal

45 I-DMP-DET/O-USB-RST I/O DMPORT detection signal input terminal/reset signal output terminal Not used

46 I-MODEL I Model setting terminal 47 I-SUFFIX I Suffi x setting terminal

48 I-CD-CLOSE_OPEN/NC I CD table open/close detection signal input terminal

49 I/O-I2C-DATA I/O Two-way serial data bus with the electrical volume50 I/O-I2C-CLK O Serial data transfer clock signal output to the electrical volume

51 to 53 MD2 to MD0 - Not used

54 I-RST I Reset signal input from the voltage detect "L": reset For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"

55 O-TU-CE O Chip enable signal output to the FM/AM DET56 O-TU-CLK O Serial data transfer clock signal output to the FM/AM DET

HCD-EC68/EC78

43

Pin No. Pin Name I/O Description57 O-TU-DI O Serial data output to the FM/AM DET

58 VLCD - Terminal for doubler circuit capacitor connection to develop liquid crystal display drive volt-age

59 to 62 COM0, COM1, CMO2, CMO3 O Common drive signal output to the liquid crystal display

63, 64 SEG0, SEG1 O Segment drive signal output to the liquid crystal display65 VCC - Power supply terminal (+3.1V)66 VSS - Ground terminal

67 to 89 SEG2 to SEG24 O Segment drive signal output to the liquid crystal display90 VCC - Power supply terminal (+3.1V)91 VSS - Ground terminal92 X1 I Main system clock output terminal (6 MHz)93 X0 O Main system clock input terminal (6 MHz)

94 to 100 SEG25 to SEG31 O Segment drive signal output to the liquid crystal display

44

HCD-EC68/EC78SECTION 8

EXPLODED VIEWS

1 3-276-203-01 DOOR (CD) 2 3-363-099-32 SCREW (CASE 3 TP2) 3 2-890-831-11 PANEL (L), SIDE 4 2-890-830-11 PANEL (R), SIDE

(EC68/EC78: E2, E3, E51, MX, AR) 4 2-890-830-31 PANEL (R), SIDE (EC78: AEP, RU)

5 2-890-829-11 PANEL (TOP) (EC68: UK) 6 3-254-143-11 SCREW (B3), (+) BV TAPPING #1 7-685-647-79 SCREW +BVTP 3X10 TYPE2 N-S #5 7-685-247-14 SCREW +KTP 3X10 TYPE2 NON-SLIT

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

Note:• -XX and -X mean standardized parts, so

they may have some difference from the original one.

• Items marked “*” are not stocked since they are seldom required for routine ser-vice.

Some delay should be anticipated when ordering these items.

• The mechanical parts with no reference number in the exploded views are not sup-plied.

• Color Indication of Appearance Parts Ex-ample:

KNOB, BALANCE (WHITE) . . . (RED) R R Parts of Color Cabinet’s Color• Accessories are given in the last of the

electrical parts list.• Abbreviation AR : Argentina model AUS : Australian model E2 : 120V AC area in E model


8-1. PANEL SECTION

1

2

4 2

3

#1

#1

#5

#5

chassis section

tape deck section(EXCEPT EC68:UK) (EC68:UK)

front panel section

5

6

6 6

6

E3 : 240V AC area in E model E51 : Chilean and Peruvian models MX : Mexican model RU : Russian model

45

HCD-EC68/EC78

5161

61

53

54

55

56

57

58

59

606362

not supplied

notsupplied

#6

#4

not supplied

not supplied(DECK board)

52

52

not supplied

64

51 1-833-801-21 CABLE, FLEXIBLE FLAT (9 CORE) (EXCEPT EC68: UK)

52 3-701-748-00 CLAMP (EXCEPT EC68: UK) 53 3-252-827-01 SCREW (B2.6), (+) BV TAPPING

(EXCEPT EC68: UK) 54 2-649-132-21 BUTTON (CASS) (z, N, m, M, xZ, X)

(EXCEPT EC68: UK) 55 2-649-152-02 SPRING (CASS) (EXCEPT EC68: UK)

56 2-649-131-21 BOX, CASSETTE (EXCEPT EC68: UK) 57 2-649-128-71 PANEL, TOP (EXCEPT EC68: UK) 58 3-047-468-01 DAMPER (EXCEPT EC68: UK) 59 3-921-725-01 SCREW (2.6X10), +PWH (EXCEPT EC68: UK) 60 1-797-575-11 DECK, MECHANICAL (CS-21SC-900TP)

(EXCEPT EC68: UK)

60 A-1527-851-A TCM-J1 (EXCEPT EC68: UK)

61 4-951-620-01 SCREW (2.6X8), +BVTP (EXCEPT EC68: UK) 62 2-670-389-01 BELT (1) (for TCM-J1) (EXCEPT EC68: UK) 62 2-688-622-01 BELT (MAIN) (for CS-21SC-900TP)

(EXCEPT EC68: UK) 63 3-214-817-01 BELT (FR) (for TCM-J1) (EXCEPT EC68: UK)

63 2-688-621-01 BELT (R/F) (for CS-21SC-900TP) (EXCEPT EC68: UK)

64 3-917-753-41 CUSHION (SP) (EXCEPT EC68: UK) #4 7-685-645-79 SCREW +BVTP 3X6 TYPE2 IT-3

(EXCEPT EC68: UK) #6 7-685-850-04 SCREW +BVTT 2X3 (S) (EXCEPT EC68: UK)


8-2. TAPE DECK SECTION (EXCEPT EC68: UK)

Note: When you exchange Ref.No.60, 62 or 63, Please refer to “HOW TO DISTINGUISH TAPE MECHANISM DECK (EXCEPT EC68: UK MODEL)” of the service note (5 page).

46

HCD-EC68/EC78

101 3-276-202-01 KNOB (VOL) 102 3-276-204-01 RING (VOL) (EC78: AEP, RU, E2, E51, MX, AR) 102 3-276-204-11 RING (VOL) (EC68) 102 3-276-204-21 RING (VOL) (EC78: E3) 103 3-276-201-01 PLATE, ORNAMENTAL

104 3-276-198-21 WINDOW (EC78: E3) 104 3-276-198-41 WINDOW (EC68: E3, AUS) 104 3-276-198-81 WINDOW (EC78: AEP, RU, E2, E51, MX, AR) 104 3-276-198-91 WINDOW (EC68: AEP, UK, RU, E2, E51, MX, AR) 105 A-1418-860-A PANEL ASSY, FRONT (EC68: E3, AUS)

105 A-1418-861-A PANEL ASSY, FRONT (EC68: E2, E51, MX, AR) 105 A-1418-864-A PANEL ASSY, FRONT (EC78: E3) 105 A-1418-865-A PANEL ASSY, FRONT (EC78: E2, E51, MX, AR) 105 A-1509-965-A PANEL ASSY, FRONT (EC68: AEP, UK, RU) 105 A-1509-966-A PANEL ASSY, FRONT (EC78: AEP, RU)

106 4-951-620-01 SCREW (2.6X8), +BVTP

107 1-832-906-21 CABLE, FLEXIBLE FLAT (27 CORE) 108 3-297-298-01 SHEET (RM) 109 A-1379-679-A PANEL BOARD, COMPLETE (EC78: AEP) 109 A-1379-692-A PANEL BOARD, COMPLETE (EC78: RU)

109 A-1379-698-A PANEL BOARD, COMPLETE (EC78: E2) 109 A-1379-707-A PANEL BOARD, COMPLETE (EC78: E51, MX, AR) 109 A-1379-748-A PANEL BOARD, COMPLETE (EC68: AEP) 109 A-1379-753-A PANEL BOARD, COMPLETE (EC68: RU) 109 A-1379-787-A PANEL BOARD, COMPLETE (EC68: E2)

109 A-1379-794-A PANEL BOARD, COMPLETE (EC68: E51, MX, AR) 109 A-1426-147-A PANEL BOARD, COMPLETE (EC78: E3) 109 A-1426-169-A PANEL BOARD, COMPLETE (EC68: UK) 109 A-1426-174-A PANEL BOARD, COMPLETE (EC68: E3) 109 A-1426-177-A PANEL BOARD, COMPLETE (EC68: AUS)

110 1-831-774-21 CABLE, FLEXIBLE FLAT (9 CORE) 111 4-225-252-01 CUSHION (FOOT)


8-3. FRONT PANEL SECTION

101

102

103

104

105

106

106

106

107

108

109106

106

110111

not supplied

notsupplied

not supplied

not supplied(KEY POWER board)

not supplied(KEY CD board)

not supplied(JACK HOLD board)

not supplied(JACK board)

47

HCD-EC68/EC78

151 1-832-838-21 CABLE, FLEXIBLE FLAT (13 CORE) 152 4-225-252-01 CUSHION (FOOT) 154 3-701-748-00 CLAMP 155 3-254-143-11 SCREW (B3), (+) BV TAPPING0 156 1-769-744-81 CORD, POWER (EC68: UK)

0 156 1-829-387-11 CORD, POWER (EC68: AR/EC78: AR)0 156 1-834-966-21 CORD, POWER (EC68: AEP, RU, E2, E3, E51/

EC78: AEP, RU, E2, E3, E51)

0 156 1-834-967-21 CORD, POWER (EC68: AUS)0 156 1-834-978-11 CORD, POWER (EC68: MX/EC78: MX) 157 1-834-181-21 CABLE, FLEXIBLE FLAT (21 CORE)

0 M601 1-787-400-11 D.C. FAN (EC68/EC78: E2, E3, E51, MX, AR)0 M601 1-787-631-11 FAN, DC (EC78: AEP, RU) #1 7-685-647-79 SCREW +BVTP 3X10 TYPE2 N-S #2 7-685-661-14 SCREW +BVTP 4X12 TYPE2 N-S


8-4. CHASSIS SECTION

151

152

152

154 156

157

#1

#1

#1

#2#2

main section

not supplied

(EC78)

not supplied

CD mechanism section

not supplied(AC HOLD board)

M601

not supplied

155155

155

155155

48

HCD-EC68/EC78

201 A-1379-677-A MAIN BOARD, COMPLETE (EC78: AEP, RU) 201 A-1379-696-A MAIN BOARD, COMPLETE

(EC78: E2, E51, MX, AR) 201 A-1379-746-A MAIN BOARD, COMPLETE (EC68: AEP, RU) 201 A-1379-785-A MAIN BOARD, COMPLETE

(EC68: E2, E51, MX, AR) 201 A-1426-145-A MAIN BOARD, COMPLETE (EC78: E3)

201 A-1426-167-A MAIN BOARD, COMPLETE (EC68: UK) 201 A-1426-172-A MAIN BOARD, COMPLETE (EC68: E3, AUS) 202 1-831-744-21 CABLE, FLEXIBLE FLAT (5 CORE) 203 1-835-276-21 CABLE, FLEXIBLE FLAT (5 CORE) (EC78) 204 3-905-609-31 SCREW (TRANSISTOR)


0 PT003 1-445-117-11 TRANSFORMER, POWER (EC68: AEP, RU)0 PT003 1-445-338-11 TRANSFORMER, POWER (EC68: MX)0 PT003 1-445-346-11 TRANSFORMER, POWER

(EC68: E2, E3, E51, AR, AUS)0 PT003 1-445-432-11 TRANSFORMER, POWER (EC68: UK)0 PT004 1-445-119-11 TRANSFORMER, POWER

(EC78: E2, E3, E51, AR)

0 PT004 1-445-341-11 TRANSFORMER, POWER (EC78: AEP, RU)0 PT004 1-445-344-11 TRANSFORMER, POWER (EC78: MX) #1 7-685-647-79 SCREW +BVTP 3X10 TYPE2 N-S #3 7-685-880-09 SCREW +BVTT 4X6 (S) #4 7-685-645-79 SCREW +BVTP 3X6 TYPE2 IT-3

8-5. MAIN SECTION

201 202

204

204

203

not supplied

not supplied

not supplied

#4

#4#4

#1

#1

#1

#1

#1

#1#1

#1

#1

PT003: EC68/PT004: EC78

#3

#1

not suppliednot supplied

not supplied

not supplied(PT board)

not supplied(HI AMP board)

(EC78)

(EXCEPT EC68: UK)

(EC68: UK)

not supplied(LOW AMP board)

not supplied(HOLD board)

not supplied(REG board)

not supplied(HOLD (PT) board)

#1

not supplied(HOLD board)

49

HCD-EC68/EC78

251 1-797-193-12 MECHANICAL, CD (DLM3A) 252 2-632-062-11 BELT (DLM3A) 253 4-227-045-31 SPRING (INSULATOR), COIL 254 4-227-549-31 INSULATOR 255 4-985-672-01 SCREW (+PTPWHM2.6), FLOATING

0 256 A-4735-357-A BASE ASSY, OP (KSM-213D) 257 1-832-404-21 CABLE, FLEXIBLE FLAT (16 CORE) 258 A-1217-914-A CD BOARD, COMPLETE S201 1-771-853-11 SWITCH, DETECTION (LIMIT)


8-6. CD MECHANISM SECTION (CDM88A-K6BD90-WOD)

256(including sled motor (M402), spindle motor (M401))

257

258

S201

sled motor (M402)

spindle motor (M401)

253253

254

254

254

254

252

252

255255

251

not supplied

not supplied

50

HCD-EC68/EC78SECTION 9

ELECTRICAL PARTS LIST

A-1217-914-A CD BOARD, COMPLETE *******************

< CAPACITOR >

C100 1-164-360-11 CERAMIC CHIP 0.1uF 16V C101 1-164-360-11 CERAMIC CHIP 0.1uF 16V C102 1-164-360-11 CERAMIC CHIP 0.1uF 16V C103 1-164-360-11 CERAMIC CHIP 0.1uF 16V C104 1-164-360-11 CERAMIC CHIP 0.1uF 16V

C105 1-164-360-11 CERAMIC CHIP 0.1uF 16V C106 1-128-995-21 ELECT CHIP 100uF 20% 10V C107 1-164-360-11 CERAMIC CHIP 0.1uF 16V C108 1-164-360-11 CERAMIC CHIP 0.1uF 16V C109 1-164-360-11 CERAMIC CHIP 0.1uF 16V

C110 1-164-360-11 CERAMIC CHIP 0.1uF 16V C112 1-164-360-11 CERAMIC CHIP 0.1uF 16V C113 1-164-360-11 CERAMIC CHIP 0.1uF 16V C115 1-124-778-00 ELECT CHIP 22uF 20% 6.3V C116 1-164-360-11 CERAMIC CHIP 0.1uF 16V

C117 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C118 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C119 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C120 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C122 1-164-315-11 CERAMIC CHIP 470PF 5% 50V

C123 1-164-315-11 CERAMIC CHIP 470PF 5% 50V C124 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V C125 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V C126 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C127 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V

C128 1-162-910-11 CERAMIC CHIP 5PF 0.25PF 50V C130 1-162-910-11 CERAMIC CHIP 5PF 0.25PF 50V C132 1-164-360-11 CERAMIC CHIP 0.1uF 16V C133 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C136 1-162-923-11 CERAMIC CHIP 47PF 5% 50V

C137 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C138 1-164-315-11 CERAMIC CHIP 470PF 5% 50V C139 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C140 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C141 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V

C142 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C143 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C144 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C145 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C146 1-164-315-11 CERAMIC CHIP 470PF 5% 50V

C147 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V

C148 1-162-923-11 CERAMIC CHIP 47PF 5% 50V C149 1-162-919-11 CERAMIC CHIP 22PF 5% 50V C150 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C151 1-164-315-11 CERAMIC CHIP 470PF 5% 50V

C152 1-164-315-11 CERAMIC CHIP 470PF 5% 50V C153 1-164-360-11 CERAMIC CHIP 0.1uF 16V C201 1-128-995-21 ELECT CHIP 100uF 20% 10V C202 1-128-995-21 ELECT CHIP 100uF 20% 10V C204 1-164-360-11 CERAMIC CHIP 0.1uF 16V

C205 1-164-360-11 CERAMIC CHIP 0.1uF 16V C206 1-165-908-11 CERAMIC CHIP 1uF 10% 10V C207 1-165-908-11 CERAMIC CHIP 1uF 10% 10V C301 1-164-360-11 CERAMIC CHIP 0.1uF 16V C302 1-137-710-91 CERAMIC CHIP 10uF 20% 6.3V

C303 1-137-710-91 CERAMIC CHIP 10uF 20% 6.3V C306 1-128-995-21 ELECT CHIP 100uF 20% 10V C307 1-165-908-11 CERAMIC CHIP 1uF 10% 10V C309 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C401 1-128-394-11 ELECT CHIP 220uF 20% 10V

C403 1-164-360-11 CERAMIC CHIP 0.1uF 16V C404 1-164-360-11 CERAMIC CHIP 0.1uF 16V C405 1-164-360-11 CERAMIC CHIP 0.1uF 16V

< CONNECTOR >

CN201 1-784-833-51 CONNECTOR, FFC (LIF (NON-ZIF)) 21P CN301 1-770-425-51 CONNECTOR, FFC/FPC 16P

< IC >

IC101 6-712-622-01 IC TC94A70FG-006 (D, HZ IC201 6-710-808-01 IC TK63115SCL-G@GT IC401 6-710-637-01 IC BA5826SFP-E2

< TRANSISTOR >

Q301 6-551-120-01 TRANSISTOR 2SA2119K

< RESISTOR >

R101 1-216-813-11 METAL CHIP 220 5% 1/10W R102 1-216-833-11 METAL CHIP 10K 5% 1/10W R104 1-216-295-91 SHORT CHIP 0 R105 1-216-857-11 METAL CHIP 1M 5% 1/10W R106 1-216-821-11 METAL CHIP 1K 5% 1/10W

R108 1-216-864-11 SHORT CHIP 0 R110 1-216-833-11 METAL CHIP 10K 5% 1/10W R111 1-216-809-11 METAL CHIP 100 5% 1/10W R112 1-216-809-11 METAL CHIP 100 5% 1/10W


CD

When indicating parts by reference num-ber, please include the board name.

Note:• Due to standardization, replacements in

the parts list may be different from the parts specifi ed in the diagrams or the com-ponents used on the set.

• -XX and -X mean standardized parts, so they may have some difference from the original one.

• Items marked “*” are not stocked since they are seldom required for routine ser-vice.

Some delay should be anticipated when ordering these items.

• CAPACITORS uF: μF• COILS uH: μH

• RESISTORS All resistors are in ohms. METAL: Metal-fi lm resistor. METAL OXIDE: Metal oxide-fi lm resistor. F: nonfl ammable• SEMICONDUCTORS In each case, u: μ, for example: uA. . : μA. . , uPA. . , μPA. . , uPB. . : μPB. . , uPC. . , μPC. . , uPD. . : μPD. .• Abbreviation AR : Argentina model AUS : Australian model E2 : 120V AC area in E model E3 : 240V AC area in E model E51 : Chilean and Peruvian models


MX : Mexican model RU : Russian model


HCD-EC68/EC78

5151

R113 1-216-833-11 METAL CHIP 10K 5% 1/10W

R114 1-216-833-11 METAL CHIP 10K 5% 1/10W R118 1-216-845-11 METAL CHIP 100K 5% 1/10W R120 1-216-864-11 SHORT CHIP 0 R125 1-216-864-11 SHORT CHIP 0 R126 1-216-864-11 SHORT CHIP 0

R127 1-216-864-11 SHORT CHIP 0 R128 1-216-853-11 METAL CHIP 470K 5% 1/10W R129 1-216-821-11 METAL CHIP 1K 5% 1/10W R130 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R134 1-216-857-11 METAL CHIP 1M 5% 1/10W

R135 1-216-853-11 METAL CHIP 470K 5% 1/10W R136 1-216-837-11 METAL CHIP 22K 5% 1/10W R139 1-216-841-11 METAL CHIP 47K 5% 1/10W R140 1-216-864-11 SHORT CHIP 0 R142 1-216-837-11 METAL CHIP 22K 5% 1/10W

R143 1-216-841-11 METAL CHIP 47K 5% 1/10W R144 1-216-837-11 METAL CHIP 22K 5% 1/10W R145 1-216-864-11 SHORT CHIP 0 R146 1-216-864-11 SHORT CHIP 0 R147 1-216-864-11 SHORT CHIP 0

R148 1-216-864-11 SHORT CHIP 0 R149 1-216-864-11 SHORT CHIP 0 R150 1-216-864-11 SHORT CHIP 0 R151 1-216-864-11 SHORT CHIP 0 R153 1-216-857-11 METAL CHIP 1M 5% 1/10W

R154 1-216-857-11 METAL CHIP 1M 5% 1/10W R155 1-216-805-11 METAL CHIP 47 5% 1/10W R156 1-216-809-11 METAL CHIP 100 5% 1/10W R157 1-216-809-11 METAL CHIP 100 5% 1/10W R201 1-216-295-91 SHORT CHIP 0

R202 1-216-295-91 SHORT CHIP 0 R203 1-216-809-11 METAL CHIP 100 5% 1/10W R204 1-216-809-11 METAL CHIP 100 5% 1/10W R205 1-216-809-11 METAL CHIP 100 5% 1/10W R206 1-216-809-11 METAL CHIP 100 5% 1/10W

R207 1-216-809-11 METAL CHIP 100 5% 1/10W R208 1-216-809-11 METAL CHIP 100 5% 1/10W R209 1-216-809-11 METAL CHIP 100 5% 1/10W R210 1-216-809-11 METAL CHIP 100 5% 1/10W R211 1-216-809-11 METAL CHIP 100 5% 1/10W

R212 1-216-809-11 METAL CHIP 100 5% 1/10W R218 1-216-845-11 METAL CHIP 100K 5% 1/10W R219 1-216-845-11 METAL CHIP 100K 5% 1/10W R220 1-216-845-11 METAL CHIP 100K 5% 1/10W R221 1-216-845-11 METAL CHIP 100K 5% 1/10W

R222 1-216-845-11 METAL CHIP 100K 5% 1/10W R223 1-216-845-11 METAL CHIP 100K 5% 1/10W R301 1-216-845-11 METAL CHIP 100K 5% 1/10W R302 1-216-864-11 SHORT CHIP 0 R303 1-216-789-11 METAL CHIP 2.2 5% 1/10W

R304 1-216-789-11 METAL CHIP 2.2 5% 1/10W R402 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R405 1-216-833-11 METAL CHIP 10K 5% 1/10W R408 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R414 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

R415 1-216-841-11 METAL CHIP 47K 5% 1/10W

< VIBRATOR >

X102 1-795-101-21 VIBRATOR, CERAMIC (16.9344MHz)************************************************************

DECK BOARD (EXCEPT EC68: UK) ***********

< CAPACITOR >

C501 1-126-933-11 ELECT 100uF 20% 16V C502 1-126-933-11 ELECT 100uF 20% 16V C503 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V C504 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V C505 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V

C506 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C509 1-162-923-11 CERAMIC CHIP 47PF 5% 50V C510 1-162-923-11 CERAMIC CHIP 47PF 5% 50V C511 1-162-960-11 CERAMIC CHIP 220PF 10% 50V C512 1-162-960-11 CERAMIC CHIP 220PF 10% 50V

C513 1-126-960-11 ELECT 1uF 20% 50V C514 1-126-960-11 ELECT 1uF 20% 50V C515 1-126-947-11 ELECT 47uF 20% 35V C516 1-126-947-11 ELECT 47uF 20% 35V C517 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V

C519 1-162-962-11 CERAMIC CHIP 470PF 10% 50V C520 1-162-962-11 CERAMIC CHIP 470PF 10% 50V C521 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V C522 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V C523 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V

C524 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C525 1-162-923-11 CERAMIC CHIP 47PF 5% 50V C526 1-162-923-11 CERAMIC CHIP 47PF 5% 50V C527 1-162-962-11 CERAMIC CHIP 470PF 10% 50V C528 1-162-962-11 CERAMIC CHIP 470PF 10% 50V

C529 1-162-961-11 CERAMIC CHIP 330PF 10% 50V C530 1-162-961-11 CERAMIC CHIP 330PF 10% 50V C531 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C532 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C533 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V

C534 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V C535 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V C536 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V C537 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V C538 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V

C539 1-115-156-11 CERAMIC CHIP 1uF 10V C540 1-137-391-11 MYLAR 0.0047uF 5% 100V C542 1-104-662-91 ELECT 22uF 20% 25V C543 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C545 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V


< CONNECTOR >

CN501 1-815-449-11 PIN, CONNECTOR (PWB) 8P

< GROUND TERMINAL >

ET501 1-537-771-21 TERMINAL BOARD, GROUND

< IC >

IC501 8-759-278-58 IC NJM4558V-TE2 IC502 8-759-278-58 IC NJM4558V-TE2

CD DECK


HCD-EC68/EC78

52

< JUMPER RESISTOR >

JR501 1-216-864-11 SHORT CHIP 0 JR502 1-216-864-11 SHORT CHIP 0 JR503 1-216-864-11 SHORT CHIP 0

< TRANSFORMER >

L501 1-456-094-11 TRANSFORMER, BIAS OSCILLATION

< TRANSISTOR >

Q501 8-729-119-78 TRANSISTOR 2SC2785-HFE Q502 8-729-119-78 TRANSISTOR 2SC2785-HFE

< RESISTOR >

R501 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R502 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R503 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R504 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R505 1-216-835-11 METAL CHIP 15K 5% 1/10W

R506 1-216-835-11 METAL CHIP 15K 5% 1/10W R507 1-216-851-11 METAL CHIP 330K 5% 1/10W R508 1-216-851-11 METAL CHIP 330K 5% 1/10W R509 1-216-811-11 METAL CHIP 150 5% 1/10W R510 1-216-811-11 METAL CHIP 150 5% 1/10W

R511 1-216-845-11 METAL CHIP 100K 5% 1/10W R512 1-216-845-11 METAL CHIP 100K 5% 1/10W R513 1-216-845-11 METAL CHIP 100K 5% 1/10W R514 1-216-845-11 METAL CHIP 100K 5% 1/10W R515 1-216-864-11 SHORT CHIP 0

R516 1-216-864-11 SHORT CHIP 0 R517 1-216-821-11 METAL CHIP 1K 5% 1/10W R518 1-216-821-11 METAL CHIP 1K 5% 1/10W R519 1-216-841-11 METAL CHIP 47K 5% 1/10W R520 1-216-841-11 METAL CHIP 47K 5% 1/10W

R521 1-216-841-11 METAL CHIP 47K 5% 1/10W R522 1-216-841-11 METAL CHIP 47K 5% 1/10W R523 1-216-827-11 METAL CHIP 3.3K 5% 1/10W R524 1-216-827-11 METAL CHIP 3.3K 5% 1/10W R525 1-216-851-11 METAL CHIP 330K 5% 1/10W

R526 1-216-851-11 METAL CHIP 330K 5% 1/10W R527 1-216-851-11 METAL CHIP 330K 5% 1/10W R528 1-216-851-11 METAL CHIP 330K 5% 1/10W R529 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R530 1-216-825-11 METAL CHIP 2.2K 5% 1/10W

R531 1-216-832-11 METAL CHIP 8.2K 5% 1/10W R532 1-216-832-11 METAL CHIP 8.2K 5% 1/10W R533 1-216-837-11 METAL CHIP 22K 5% 1/10W R534 1-216-835-11 METAL CHIP 15K 5% 1/10W R535 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

R536 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R537 1-216-833-11 METAL CHIP 10K 5% 1/10W R538 1-216-833-11 METAL CHIP 10K 5% 1/10W R539 1-216-793-11 METAL CHIP 4.7 5% 1/10W R540 1-216-805-11 METAL CHIP 47 5% 1/10W


< SWITCH >

S501 1-762-369-11 SWITCH, SLIDE (REC/PB)************************************************************

HI AMP BOARD (EC78) ************

< CAPACITOR >

C151 1-126-960-11 ELECT 1uF 20% 50V C152 1-126-960-11 ELECT 1uF 20% 50V C153 1-164-315-11 CERAMIC CHIP 470PF 5% 50V C154 1-164-315-11 CERAMIC CHIP 470PF 5% 50V C155 1-162-927-11 CERAMIC CHIP 100PF 5% 50V

C156 1-162-927-11 CERAMIC CHIP 100PF 5% 50V C157 1-126-960-11 ELECT 1uF 20% 50V C158 1-126-960-11 ELECT 1uF 20% 50V C159 1-162-908-11 CERAMIC CHIP 3PF 0.25PF 50V C160 1-162-908-11 CERAMIC CHIP 3PF 0.25PF 50V

C161 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C162 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C166 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V C169 1-126-968-11 ELECT 100uF 20% 50V

(EC78: E2, E3, E51, MX, AR) C169 1-128-576-11 ELECT 100uF 20% 63V

(EC78: AEP, RU)

C170 1-126-968-11 ELECT 100uF 20% 50V(EC78: E2, E3, E51, MX, AR)

C170 1-128-576-11 ELECT 100uF 20% 63V(EC78: AEP, RU)

C173 1-165-621-91 CERAMIC CHIP 0.1uF 50V C174 1-165-621-91 CERAMIC CHIP 0.1uF 50V C175 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

C176 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V C178 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

< CONNECTOR >

CN151 1-819-134-11 PIN, CONNECTOR 6P CN152 1-784-766-11 CONNECTOR, FFC 5P

< DIODE >

D151 6-500-335-01 DIODE MC2838-T112-1 D152 6-501-817-01 DIODE MA2J1110GLS0

< IC >

IC151 6-705-621-01 IC STK433-070

< JUMPER RESISTOR >

JR151 1-216-864-11 SHORT CHIP 0

< TRANSISTOR >

Q151 6-551-270-01 TRANSISTOR 2SA2026 Q152 6-551-270-01 TRANSISTOR 2SA2026

< RESISTOR >

R151 1-216-824-11 METAL CHIP 1.8K 5% 1/10W R152 1-216-824-11 METAL CHIP 1.8K 5% 1/10W R153 1-216-837-11 METAL CHIP 22K 5% 1/10W R154 1-216-837-11 METAL CHIP 22K 5% 1/10W R155 1-216-841-11 METAL CHIP 47K 5% 1/10W

HI AMPDECK


HCD-EC68/EC78

5353


R163 1-216-841-11 METAL CHIP 47K 5% 1/10W R164 1-216-841-11 METAL CHIP 47K 5% 1/10W R171 1-216-864-11 SHORT CHIP 0 R172 1-216-809-11 METAL CHIP 100 5% 1/10W R173 1-216-821-11 METAL CHIP 1K 5% 1/10W

R175 1-216-813-11 METAL CHIP 220 5% 1/10W R176 1-216-813-11 METAL CHIP 220 5% 1/10W R177 1-216-813-11 METAL CHIP 220 5% 1/10W R178 1-216-813-11 METAL CHIP 220 5% 1/10W0 R179 1-216-361-31 METAL OXIDE 0.22 5% 2W F

0 R180 1-216-361-31 METAL OXIDE 0.22 5% 2W F R181 1-216-822-11 METAL CHIP 1.2K 5% 1/10W R182 1-216-822-11 METAL CHIP 1.2K 5% 1/10W R183 1-216-837-11 METAL CHIP 22K 5% 1/10W R184 1-216-837-11 METAL CHIP 22K 5% 1/10W

R185 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R186 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R195 1-216-817-11 METAL CHIP 470 5% 1/10W R196 1-216-817-11 METAL CHIP 470 5% 1/10W************************************************************

JACK BOARD ***********

< CAPACITOR >

C491 1-164-156-11 CERAMIC CHIP 0.1uF 25V C495 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C496 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V

< JACK >

J491 1-566-822-51 JACK (AUDIO IN) J492 1-815-629-21 JACK (PHONES)

< RESISTOR >

R491 1-216-837-11 METAL CHIP 22K 5% 1/10W R492 1-216-837-11 METAL CHIP 22K 5% 1/10W************************************************************

KEY CD BOARD *************

< RESISTOR >

R407 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R408 1-216-826-11 METAL CHIP 2.7K 5% 1/10W R409 1-216-828-11 METAL CHIP 3.9K 5% 1/10W R410 1-218-867-11 METAL CHIP 6.8K 0.5% 1/10W R411 1-216-835-11 METAL CHIP 15K 5% 1/10W

< SWITCH >

SW306 1-771-410-21 SWITCH, TACTILE (DISC 1) SW307 1-771-410-21 SWITCH, TACTILE (DISC 2) SW308 1-771-410-21 SWITCH, TACTILE (DISC 3) SW309 1-771-410-21 SWITCH, TACTILE (Z) SW310 1-771-410-21 SWITCH, TACTILE (DISC SKIP/EX-CHANGE)************************************************************

KEY POWER BOARD *****************

< SWITCH >

SW301 1-771-410-21 SWITCH, TACTILE (I/1, STANDBY)

< CABLE HOLDER >

W401 1-824-027-21 HOLDER, CABLE 3P************************************************************

LOW AMP BOARD **************

< CAPACITOR >

C101 1-126-960-11 ELECT 1uF 20% 50V C102 1-126-960-11 ELECT 1uF 20% 50V C103 1-164-315-11 CERAMIC CHIP 470PF 5% 50V C104 1-164-315-11 CERAMIC CHIP 470PF 5% 50V C105 1-162-927-11 CERAMIC CHIP 100PF 5% 50V

C106 1-162-927-11 CERAMIC CHIP 100PF 5% 50V C107 1-126-947-11 ELECT 47uF 20% 35V C108 1-126-947-11 ELECT 47uF 20% 35V C109 1-162-908-11 CERAMIC CHIP 3PF 0.25PF 50V C110 1-162-908-11 CERAMIC CHIP 3PF 0.25PF 50V

C116 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V C119 1-126-968-11 ELECT 100uF 20% 50V

(EC68/EC78: E2, E3, E51, MX, AR) C119 1-128-576-11 ELECT 100uF 20% 63V

(EC78: AEP, RU) C120 1-126-968-11 ELECT 100uF 20% 50V


(EC78: AEP, RU)

C123 1-165-621-91 CERAMIC CHIP 0.1uF 50V C124 1-165-621-91 CERAMIC CHIP 0.1uF 50V C125 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V C126 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V C128 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

< CONNECTOR >

CN102 1-784-766-11 CONNECTOR, FFC 5P CN104 1-824-030-21 HOLDER, CABLE 5P

< DIODE >

D101 6-500-335-01 DIODE MC2838-T112-1 D103 6-501-817-01 DIODE MA2J1110GLS0

< IC >

IC101 6-705-620-01 IC STK433-060 (EC68) IC101 6-705-621-01 IC STK433-070 (EC78)

< JUMPER RESISTOR >

JR132 1-216-864-11 SHORT CHIP 0

< TRANSISTOR >

Q101 6-551-270-01 TRANSISTOR 2SA2026 Q102 6-551-270-01 TRANSISTOR 2SA2026

< RESISTOR >

R101 1-216-864-11 SHORT CHIP 0

JACKHI AMP LOW AMPKEY CD KEY POWER


HCD-EC68/EC78

54

R102 1-216-864-11 SHORT CHIP 0 R103 1-216-824-11 METAL CHIP 1.8K 5% 1/10W

(EC78) R103 1-216-827-11 METAL CHIP 3.3K 5% 1/10W

(EC68) R104 1-216-824-11 METAL CHIP 1.8K 5% 1/10W

(EC78)

R104 1-216-827-11 METAL CHIP 3.3K 5% 1/10W(EC68)

R105 1-216-829-11 METAL CHIP 4.7K 5% 1/10W(EC68)

R105 1-216-837-11 METAL CHIP 22K 5% 1/10W(EC78)

R106 1-216-829-11 METAL CHIP 4.7K 5% 1/10W(EC68)

R106 1-216-837-11 METAL CHIP 22K 5% 1/10W(EC78)

R107 1-216-841-11 METAL CHIP 47K 5% 1/10W R108 1-216-841-11 METAL CHIP 47K 5% 1/10W R109 1-216-821-11 METAL CHIP 1K 5% 1/10W R110 1-216-821-11 METAL CHIP 1K 5% 1/10W R111 1-216-817-11 METAL CHIP 470 5% 1/10W

R112 1-216-817-11 METAL CHIP 470 5% 1/10W R113 1-216-841-11 METAL CHIP 47K 5% 1/10W R114 1-216-841-11 METAL CHIP 47K 5% 1/10W R122 1-216-809-11 METAL CHIP 100 5% 1/10W R123 1-216-821-11 METAL CHIP 1K 5% 1/10W

R125 1-216-813-11 METAL CHIP 220 5% 1/10W R126 1-216-813-11 METAL CHIP 220 5% 1/10W R127 1-216-813-11 METAL CHIP 220 5% 1/10W R128 1-216-813-11 METAL CHIP 220 5% 1/10W R129 1-216-361-31 METAL OXIDE 0.22 5% 2W

R130 1-216-361-31 METAL OXIDE 0.22 5% 2W R131 1-216-822-11 METAL CHIP 1.2K 5% 1/10W R132 1-216-822-11 METAL CHIP 1.2K 5% 1/10W R133 1-216-837-11 METAL CHIP 22K 5% 1/10W R134 1-216-837-11 METAL CHIP 22K 5% 1/10W

R135 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R136 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R142 1-216-864-11 SHORT CHIP 0 R145 1-216-817-11 METAL CHIP 470 5% 1/10W R146 1-216-817-11 METAL CHIP 470 5% 1/10W************************************************************

A-1379-677-A MAIN BOARD, COMPLETE (EC78: AEP, RU) A-1379-696-A MAIN BOARD, COMPLETE

(EC78: E2, E51, MX, AR) A-1379-746-A MAIN BOARD, COMPLETE (EC68: AEP, RU) A-1379-785-A MAIN BOARD, COMPLETE

(EC68: E2, E51, MX, AR) A-1426-145-A MAIN BOARD, COMPLETE (EC78: E3)

A-1426-167-A MAIN BOARD, COMPLETE (EC68: UK) A-1426-172-A MAIN BOARD, COMPLETE (EC68: E3, AUS) *********************

< CAPACITOR >

C601 1-126-947-11 ELECT 47uF 20% 35V C602 1-104-662-91 ELECT 22uF 20% 25V C603 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V

(EC78) C604 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

(EC78) C605 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

(EC78)

C606 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V(EC78)

C607 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V C608 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V C609 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V C610 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V

C611 1-127-715-11 CERAMIC CHIP 0.22uF 10% 16V C612 1-127-715-11 CERAMIC CHIP 0.22uF 10% 16V C613 1-126-964-11 ELECT 10uF 20% 50V C614 1-126-963-11 ELECT 4.7uF 20% 50V C615 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

(EC78)

C616 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V(EC78)

C617 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V C618 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V C619 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C620 1-104-658-91 ELECT 100uF 20% 10V

C621 1-137-749-11 MYLAR 0.1uF 100V C622 1-128-550-11 ELECT 2200uF 20% 50V

(EC68/EC78: E2, E3, E51, MX, AR) C623 1-137-749-11 MYLAR 0.1uF 100V C626 1-128-550-11 ELECT 2200uF 20% 50V


C628 1-126-942-61 ELECT 1000uF 20% 25V C629 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V C630 1-126-947-11 ELECT 47uF 20% 35V C631 1-126-933-11 ELECT 100uF 20% 16V C632 1-126-963-11 ELECT 4.7uF 20% 50V

C633 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V C634 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V C635 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V

(EXCEPT EC68: UK) C636 1-126-960-11 ELECT 1uF 20% 50V C637 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V

C638 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V C639 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V C640 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V C641 1-126-962-11 ELECT 3.3uF 20% 50V C642 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V

C643 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V(EXCEPT EC68: UK)

C644 1-126-960-11 ELECT 1uF 20% 50V C645 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C646 1-126-960-11 ELECT 1uF 20% 50V C647 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V

C648 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V C649 1-162-960-11 CERAMIC CHIP 220PF 10% 50V C650 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V C651 1-162-960-11 CERAMIC CHIP 220PF 10% 50V

(EXCEPT EC68: UK) C652 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V

C653 1-162-960-11 CERAMIC CHIP 220PF 10% 50V(EXCEPT EC68: UK)

C654 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V C655 1-162-960-11 CERAMIC CHIP 220PF 10% 50V C656 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V C657 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V

C658 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V C659 1-162-915-11 CERAMIC CHIP 10PF 0.5PF 50V

MAINLOW AMP


HCD-EC68/EC78

5555

C660 1-162-915-11 CERAMIC CHIP 10PF 0.5PF 50V C661 1-126-964-11 ELECT 10uF 20% 50V C662 1-115-416-11 CERAMIC CHIP 0.001uF 5% 25V

C663 1-126-960-11 ELECT 1uF 20% 50V C664 1-126-960-11 ELECT 1uF 20% 50V C665 1-126-960-11 ELECT 1uF 20% 50V C666 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C667 1-126-933-11 ELECT 100uF 20% 16V

C669 1-126-923-91 ELECT 220uF 20% 10V C671 1-126-933-11 ELECT 100uF 20% 16V C673 1-126-925-91 ELECT 470uF 20% 10V C674 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C675 1-126-960-11 ELECT 1uF 20% 50V

C676 1-126-960-11 ELECT 1uF 20% 50V C677 1-126-974-11 ELECT 3300uF 20% 50V

(EC78: AEP, RU) C678 1-126-974-11 ELECT 3300uF 20% 50V

(EC78: AEP, RU) C679 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V C680 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V


C686 1-110-563-11 CERAMIC CHIP 0.068uF 10% 16V C687 1-110-563-11 CERAMIC CHIP 0.068uF 10% 16V C689 1-162-962-11 CERAMIC CHIP 470PF 10% 50V C690 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V C691 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

C692 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C693 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V C694 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V C695 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V C696 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V

C699 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C700 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C703 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V C704 1-162-962-11 CERAMIC CHIP 470PF 10% 50V C713 1-162-962-11 CERAMIC CHIP 470PF 10% 50V

C714 1-126-947-11 ELECT 47uF 20% 35V C788 1-164-245-11 CERAMIC CHIP 0.015uF 10% 25V C789 1-164-245-11 CERAMIC CHIP 0.015uF 10% 25V C802 1-126-933-11 ELECT 100uF 20% 16V C803 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V

C804 1-162-918-11 CERAMIC CHIP 18PF 5% 50V C805 1-117-863-11 CERAMIC CHIP 0.47uF 10% 6.3V C806 1-162-962-11 CERAMIC CHIP 470PF 10% 50V C807 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V C808 1-162-918-11 CERAMIC CHIP 18PF 5% 50V


C816 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C817 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C819 1-162-962-11 CERAMIC CHIP 470PF 10% 50V C820 1-162-910-11 CERAMIC CHIP 5PF 0.25PF 50V C821 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V

C822 1-126-965-91 ELECT 22uF 20% 50V C823 1-126-923-91 ELECT 220uF 20% 10V C824 1-165-908-11 CERAMIC CHIP 1uF 10% 10V C826 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C827 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V

C828 1-162-927-11 CERAMIC CHIP 100PF 5% 50V C829 1-117-863-11 CERAMIC CHIP 0.47uF 10% 6.3V C830 1-162-907-11 CERAMIC CHIP 2PF 0.25PF 50V C831 1-117-863-11 CERAMIC CHIP 0.47uF 10% 6.3V C832 1-117-863-11 CERAMIC CHIP 0.47uF 10% 6.3V

C833 1-126-923-91 ELECT 220uF 20% 10V C834 1-162-915-11 CERAMIC CHIP 10PF 0.5PF 50V C835 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V C836 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C837 1-162-915-11 CERAMIC CHIP 10PF 0.5PF 50V

C838 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C840 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V C841 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C843 1-164-156-11 CERAMIC CHIP 0.1uF 25V C844 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

C845 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V C846 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C847 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V C848 1-164-156-11 CERAMIC CHIP 0.1uF 25V C850 1-164-156-11 CERAMIC CHIP 0.1uF 25V

< FILTER >

CF801 1-781-962-21 FILTER, CERAMIC

< CONNECTOR >

CN601 1-819-131-11 PIN, CONNECTOR 3P CN602 1-784-766-11 CONNECTOR, FFC 5P (EC78) CN603 1-784-766-11 CONNECTOR, FFC 5P CN604 1-819-136-11 PIN, CONNECTOR 8P CN605 1-784-770-11 CONNECTOR, FFC 9P

CN606 1-784-731-11 CONNECTOR, FFC 9P (EXCEPT EC68: UK) CN607 1-784-788-11 CONNECTOR, FFC 27P CN608 1-779-289-11 CONNECTOR, FFC (LIF (NON-ZIF)) 21P CN632 1-824-030-21 HOLDER, CABLE 5P (EC78) CN633 1-819-133-11 PIN, CONNECTOR

* CN801 1-506-680-11 PLUG, CONNECTOR (2.5mm) 3P (ANTENNA FM/AM)

< DIODE >

D601 6-500-335-01 DIODE MC2838-T112-1 D602 6-500-335-01 DIODE MC2838-T112-1 D603 6-501-817-01 DIODE MA2J1110GLS0 (EC78) D604 6-501-817-01 DIODE MA2J1110GLS0 D605 6-501-817-01 DIODE MA2J1110GLS0

D606 6-500-334-01 DIODE MC2836-T112-1 D607 6-501-046-01 DIODE 1N5402-F46 D608 6-501-046-01 DIODE 1N5402-F46 D609 6-501-046-01 DIODE 1N5402-F46 D610 6-501-046-01 DIODE 1N5402-F46

D611 8-719-046-07 DIODE 2A02M (EC78) D612 8-719-046-07 DIODE 2A02M (EC78) D614 6-501-817-01 DIODE MA2J1110GLS0 D615 8-719-063-79 DIODE 1N4002B D617 6-500-335-01 DIODE MC2838-T112-1

D618 6-501-719-01 DIODE MAZ8039GHLS0

MAIN


HCD-EC68/EC78

56

D619 8-719-063-79 DIODE 1N4002B D620 8-719-063-79 DIODE 1N4002B D621 6-501-722-01 DIODE MAZ8043GMLS0 D622 6-501-752-01 DIODE MAZ8082GMLS0

D628 6-501-817-01 DIODE MA2J1110GLS0 D629 8-719-063-79 DIODE 1N4002B (EC68) D630 8-719-063-79 DIODE 1N4002B (EC68) D631 6-501-817-01 DIODE MA2J1110GLS0 D791 6-501-817-01 DIODE MA2J1110GLS0

D801 6-501-142-01 DIODE SVC347A-TL-E D802 8-719-062-51 DIODE 1PS226-115 D803 6-501-369-01 DIODE SVC230-TB-E D804 6-501-369-01 DIODE SVC230-TB-E D805 8-719-062-51 DIODE 1PS226-115

D806 8-719-062-51 DIODE 1PS226-115

< GROUND TERMINAL >

ET601 1-537-771-21 TERMINAL BOARD, GROUND ET602 1-537-771-21 TERMINAL BOARD, GROUND

< FILTER >

FL801 1-760-393-11 FILTER, CERAMIC FL803 1-236-711-21 FILTER, BAND PASS

< IC >

IC602 6-712-055-01 IC BD3499FV-E2 IC801 6-708-840-01 IC LV23003VA

< JUMPER RESISTOR >

JR601 1-216-864-11 SHORT CHIP 0 JR602 1-216-864-11 SHORT CHIP 0 JR603 1-216-864-11 SHORT CHIP 0 JR604 1-216-864-11 SHORT CHIP 0 JR605 1-216-864-11 SHORT CHIP 0



JR616 1-216-864-11 SHORT CHIP 0 JR617 1-216-864-11 SHORT CHIP 0 JR618 1-216-864-11 SHORT CHIP 0

< COIL >

L601 1-456-107-11 COIL, AIR-CORE (EC78) L602 1-456-107-11 COIL, AIR-CORE (EC78) L603 1-456-107-11 COIL, AIR-CORE L604 1-456-107-11 COIL, AIR-CORE L801 1-456-596-11 COIL, MW OSC

L802 1-457-168-11 COIL, DET L803 1-457-162-11 COIL, AIR-CORE L804 1-457-163-11 COIL, AIR-CORE L805 1-457-161-11 COIL, AM ANTENNA

< TRANSISTOR >

Q601 8-729-037-03 TRANSISTOR KTA1266GR-AT Q602 8-729-120-28 TRANSISTOR 2SC1623-L5L6 Q603 8-729-120-28 TRANSISTOR 2SC1623-L5L6 Q604 8-729-120-28 TRANSISTOR 2SC1623-L5L6 Q605 8-729-120-28 TRANSISTOR 2SC1623-L5L6

Q606 8-729-120-28 TRANSISTOR 2SC1623-L5L6 Q608 8-729-120-28 TRANSISTOR 2SC1623-L5L6 Q611 8-729-120-28 TRANSISTOR 2SC1623-L5L6 Q612 6-551-696-01 TRANSISTOR ISA1235AC1TP-1EF Q616 8-729-120-28 TRANSISTOR 2SC1623-L5L6

(EXCEPT EC68: UK)

Q617 8-729-120-28 TRANSISTOR 2SC1623-L5L6 (EXCEPT EC68: UK)

Q618 6-551-696-01 TRANSISTOR ISA1235AC1TP-1EF Q619 8-729-120-28 TRANSISTOR 2SC1623-L5L6 Q622 8-729-120-28 TRANSISTOR 2SC1623-L5L6 Q624 8-729-036-86 TRANSISTOR KTC3203Y-AT

Q801 8-729-120-28 TRANSISTOR 2SC1623-L5L6 Q802 8-729-120-28 TRANSISTOR 2SC1623-L5L6

< RESISTOR >

R601 1-216-817-11 METAL CHIP 470 5% 1/10W R603 1-216-793-11 METAL CHIP 4.7 5% 1/10W R604 1-216-845-11 METAL CHIP 100K 5% 1/10W R605 1-216-799-11 METAL CHIP 15 5% 1/10W

(EC78: AEP, RU) R605 1-216-806-11 METAL CHIP 56 5% 1/10W

(EC68/EC78: E2, E3, E51, MX, AR)

R606 1-216-797-11 METAL CHIP 10 5% 1/10W(EC78)

R607 1-216-797-11 METAL CHIP 10 5% 1/10W(EC78)

R608 1-216-797-11 METAL CHIP 10 5% 1/10W(EC78)

R609 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R610 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

R611 1-216-797-11 METAL CHIP 10 5% 1/10W R612 1-216-797-11 METAL CHIP 10 5% 1/10W R613 1-216-833-11 METAL CHIP 10K 5% 1/10W R614 1-216-833-11 METAL CHIP 10K 5% 1/10W R615 1-216-797-11 METAL CHIP 10 5% 1/10W

R616 1-216-828-11 METAL CHIP 3.9K 5% 1/10W(EC68)

R616 1-216-833-11 METAL CHIP 10K 5% 1/10W(EC78)

R617 1-216-833-11 METAL CHIP 10K 5% 1/10W R618 1-216-833-11 METAL CHIP 10K 5% 1/10W R619 1-216-828-11 METAL CHIP 3.9K 5% 1/10W

(EC68)

R619 1-216-833-11 METAL CHIP 10K 5% 1/10W(EC78)

R620 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R621 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R622 1-216-839-11 METAL CHIP 33K 5% 1/10W R623 1-216-833-11 METAL CHIP 10K 5% 1/10W

R624 1-216-833-11 METAL CHIP 10K 5% 1/10W R625 1-216-839-11 METAL CHIP 33K 5% 1/10W R626 1-216-833-11 METAL CHIP 10K 5% 1/10W R627 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R628 1-216-833-11 METAL CHIP 10K 5% 1/10W

MAIN


HCD-EC68/EC78

5757

R629 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R630 1-216-841-11 METAL CHIP 47K 5% 1/10W R631 1-216-797-11 METAL CHIP 10 5% 1/10W

(EC78) R632 1-216-845-11 METAL CHIP 100K 5% 1/10W

(EC78) R633 1-216-845-11 METAL CHIP 100K 5% 1/10W

(EC78)

R634 1-249-402-11 CARBON 56 5% 1/4W(EC78)

R635 1-249-402-11 CARBON 56 5% 1/4W(EC78)

R636 1-249-402-11 CARBON 56 5% 1/4W(EC78)

R637 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R638 1-249-402-11 CARBON 56 5% 1/4W

(EC78)

R638 1-249-403-11 CARBON 68 5% 1/4W(EC68)

R639 1-216-845-11 METAL CHIP 100K 5% 1/10W R640 1-216-845-11 METAL CHIP 100K 5% 1/10W R641 1-249-402-11 CARBON 56 5% 1/4W

(EC78) R641 1-249-403-11 CARBON 68 5% 1/4W

(EC68)

R642 1-249-402-11 CARBON 56 5% 1/4W(EC78)

R642 1-249-403-11 CARBON 68 5% 1/4W(EC68)


R646 1-216-809-11 METAL CHIP 100 5% 1/10W R647 1-216-797-11 METAL CHIP 10 5% 1/10W R648 1-216-841-11 METAL CHIP 47K 5% 1/10W R649 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R650 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

R651 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R652 1-216-809-11 METAL CHIP 100 5% 1/10W0 R658 1-215-890-51 METAL OXIDE 470 5% 2W F R660 1-216-864-11 SHORT CHIP 00 R662 1-215-890-51 METAL OXIDE 470 5% 2W F

R663 1-216-821-11 METAL CHIP 1K 5% 1/10W R666 1-216-821-11 METAL CHIP 1K 5% 1/10W R667 1-216-841-11 METAL CHIP 47K 5% 1/10W R669 1-216-845-11 METAL CHIP 100K 5% 1/10W R670 1-216-833-11 METAL CHIP 10K 5% 1/10W

R672 1-216-833-11 METAL CHIP 10K 5% 1/10W R673 1-216-864-11 SHORT CHIP 0 R674 1-249-401-11 CARBON 47 5% 1/4W R675 1-249-401-11 CARBON 47 5% 1/4W R676 1-216-833-11 METAL CHIP 10K 5% 1/10W


(EXCEPT EC68: UK) R680 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

(EXCEPT EC68: UK) R681 1-216-837-11 METAL CHIP 22K 5% 1/10W

R682 1-216-833-11 METAL CHIP 10K 5% 1/10W(EXCEPT EC68: UK)

R683 1-216-826-11 METAL CHIP 2.7K 5% 1/10W(EXCEPT EC68: UK)

R684 1-216-837-11 METAL CHIP 22K 5% 1/10W R685 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R686 1-216-842-11 METAL CHIP 56K 5% 1/10W

R687 1-216-837-11 METAL CHIP 22K 5% 1/10W R689 1-216-838-11 METAL CHIP 27K 5% 1/10W R690 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R691 1-216-833-11 METAL CHIP 10K 5% 1/10W R692 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

R693 1-216-821-11 METAL CHIP 1K 5% 1/10W R694 1-216-833-11 METAL CHIP 10K 5% 1/10W

(EXCEPT EC68: UK) R695 1-216-826-11 METAL CHIP 2.7K 5% 1/10W

(EXCEPT EC68: UK) R696 1-216-833-11 METAL CHIP 10K 5% 1/10W R697 1-216-821-11 METAL CHIP 1K 5% 1/10W

R700 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R701 1-216-864-11 SHORT CHIP 0 (EC68: UK) R702 1-216-864-11 SHORT CHIP 0 (EC68: UK) R704 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R706 1-216-813-11 METAL CHIP 220 5% 1/10W

R707 1-216-813-11 METAL CHIP 220 5% 1/10W R708 1-216-833-11 METAL CHIP 10K 5% 1/10W R709 1-216-821-11 METAL CHIP 1K 5% 1/10W R715 1-216-809-11 METAL CHIP 100 5% 1/10W R716 1-216-821-11 METAL CHIP 1K 5% 1/10W

R717 1-249-403-11 CARBON 68 5% 1/4W R718 1-249-403-11 CARBON 68 5% 1/4W R719 1-249-403-11 CARBON 68 5% 1/4W R720 1-216-837-11 METAL CHIP 22K 5% 1/10W R722 1-216-809-11 METAL CHIP 100 5% 1/10W

R724 1-249-395-11 CARBON 15 5% 1/4W R725 1-249-395-11 CARBON 15 5% 1/4W R726 1-249-395-11 CARBON 15 5% 1/4W R727 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R728 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

R729 1-216-845-11 METAL CHIP 100K 5% 1/10W R731 1-216-809-11 METAL CHIP 100 5% 1/10W R732 1-216-809-11 METAL CHIP 100 5% 1/10W R749 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R750 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

R751 1-216-830-11 METAL CHIP 5.6K 5% 1/10W R752 1-216-830-11 METAL CHIP 5.6K 5% 1/10W R753 1-216-830-11 METAL CHIP 5.6K 5% 1/10W R754 1-216-830-11 METAL CHIP 5.6K 5% 1/10W R787 1-216-835-11 METAL CHIP 15K 5% 1/10W


R803 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R804 1-216-801-11 METAL CHIP 22 5% 1/10W R805 1-216-853-11 METAL CHIP 470K 5% 1/10W R806 1-216-841-11 METAL CHIP 47K 5% 1/10W R807 1-216-837-11 METAL CHIP 22K 5% 1/10W

R808 1-216-801-11 METAL CHIP 22 5% 1/10W R809 1-216-809-11 METAL CHIP 100 5% 1/10W R810 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R811 1-216-845-11 METAL CHIP 100K 5% 1/10W R812 1-216-841-11 METAL CHIP 47K 5% 1/10W

MAIN


HCD-EC68/EC78

58


R818 1-216-833-11 METAL CHIP 10K 5% 1/10W R819 1-216-839-11 METAL CHIP 33K 5% 1/10W R820 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R821 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R822 1-216-809-11 METAL CHIP 100 5% 1/10W

R823 1-216-833-11 METAL CHIP 10K 5% 1/10W R824 1-216-817-11 METAL CHIP 470 5% 1/10W R825 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R826 1-216-821-11 METAL CHIP 1K 5% 1/10W R827 1-216-845-11 METAL CHIP 100K 5% 1/10W

R829 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R830 1-216-827-11 METAL CHIP 3.3K 5% 1/10W R831 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R832 1-216-857-11 METAL CHIP 1M 5% 1/10W R836 1-218-867-11 METAL CHIP 6.8K 0.5% 1/10W

R837 1-216-845-11 METAL CHIP 100K 5% 1/10W R838 1-216-837-11 METAL CHIP 22K 5% 1/10W R839 1-216-797-11 METAL CHIP 10 5% 1/10W R840 1-216-864-11 SHORT CHIP 0 R841 1-216-833-11 METAL CHIP 10K 5% 1/10W

R842 1-216-864-11 SHORT CHIP 0 R843 1-216-845-11 METAL CHIP 100K 5% 1/10W R844 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R845 1-216-864-11 SHORT CHIP 0 R846 1-216-797-11 METAL CHIP 10 5% 1/10W

R847 1-216-864-11 SHORT CHIP 0

< RELAY >

RY601 1-755-307-21 RELAY (EC78) RY602 1-755-307-21 RELAY

< TRANSFORMER >

T801 1-433-741-11 TRANSFORMER, IF

< TERMINAL >

TB601 1-780-381-11 TERMINAL BOARD, PUSH (ANTENNA) 4P (SPEAKER HIGH FREQ. IMPEDANCE USE 8Ω)

(EC78) TB602 1-536-708-81 TERMINAL BOARD, PUSH (4P)

(SPEAKER IMPEDANCE USE 6Ω) (EC68) TB602 1-536-708-81 TERMINAL BOARD, PUSH (4P)

(SPEAKER LOW FREQ. IMPEDANCE USE 8Ω) (EC78)

< VIBRATOR >

X801 1-813-917-11 VIBRATOR, CRYSTAL (75MHz)************************************************************

A-1379-679-A PANEL BOARD, COMPLETE (EC78: AEP) A-1379-692-A PANEL BOARD, COMPLETE (EC78: RU) A-1379-698-A PANEL BOARD, COMPLETE (EC78: E2) A-1379-707-A PANEL BOARD, COMPLETE (EC78: E51, MX, AR) A-1379-748-A PANEL BOARD, COMPLETE (EC68: AEP)

A-1379-753-A PANEL BOARD, COMPLETE (EC68: RU) A-1379-787-A PANEL BOARD, COMPLETE (EC68: E2) A-1379-794-A PANEL BOARD, COMPLETE (EC68: E51, MX, AR) A-1426-147-A PANEL BOARD, COMPLETE (EC78: E3) A-1426-169-A PANEL BOARD, COMPLETE (EC68: UK)

A-1426-174-A PANEL BOARD, COMPLETE (EC68: E3) A-1426-177-A PANEL BOARD, COMPLETE (EC68: AUS) **********************

2-649-178-01 PLATE, LIGHT GUIDE 2-649-179-01 SHEET (LCD) 2-665-175-01 SHEET (REFLECTOR)

< CAPACITOR >

C301 1-164-156-11 CERAMIC CHIP 0.1uF 25V C302 1-126-964-11 ELECT 10uF 20% 50V C303 1-126-964-11 ELECT 10uF 20% 50V C304 1-100-597-91 CERAMIC CHIP 0.1uF 10% 25V C305 1-126-964-11 ELECT 10uF 20% 50V

C306 1-104-655-91 ELECT 470uF 20% 6.3V C308 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V C309 1-126-965-91 ELECT 22uF 20% 50V C310 1-164-156-11 CERAMIC CHIP 0.1uF 25V C311 1-164-156-11 CERAMIC CHIP 0.1uF 25V

C312 1-164-156-11 CERAMIC CHIP 0.1uF 25V C313 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V C314 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V C315 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V C316 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V

C317 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C319 1-162-918-11 CERAMIC CHIP 18PF 5% 50V C320 1-162-919-11 CERAMIC CHIP 22PF 5% 50V C321 1-164-156-11 CERAMIC CHIP 0.1uF 25V C328 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V

C330 1-164-156-11 CERAMIC CHIP 0.1uF 25V C332 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C338 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C340 1-164-156-11 CERAMIC CHIP 0.1uF 25V C341 1-164-156-11 CERAMIC CHIP 0.1uF 25V

C342 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C343 1-126-965-91 ELECT 22uF 20% 50V C344 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V C345 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V C346 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V

C354 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V C355 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V C356 1-164-156-11 CERAMIC CHIP 0.1uF 25V

< CONNECTOR >

CN302 1-784-735-11 CONNECTOR, FFC 13P CN303 1-815-550-11 PIN, CONNECTOR (PWB) 2P CN304 1-784-749-11 CONNECTOR, FFC 27P CN306 1-815-443-11 PIN, CONNECTOR (PWB) 2P

< DIODE >

D301 6-501-722-01 DIODE MAZ8043GMLS0

PANELMAIN


HCD-EC68/EC78

5959

D302 6-501-817-01 DIODE MA2J1110GLS0 D303 6-500-334-01 DIODE MC2836-T112-1 D304 6-501-817-01 DIODE MA2J1110GLS0 D305 6-501-817-01 DIODE MA2J1110GLS0

< FERRITE BEAD >

FB301 1-500-329-21 INDUCTOR, FERRITE BEAD

< IC >

IC301 6-808-053-01 IC MB90803PF-G-135E1 IC302 6-711-556-01 IC NJL24H400B-SA

< JUMPER RESISTOR >



JR313 1-216-864-11 SHORT CHIP 0 JR315 1-216-864-11 SHORT CHIP 0

< LIQUID CRYSTAL DISPLAY >

LCD301 1-802-584-11 DISPLAY PANEL, LIQUID

< LED >

LED301 6-501-479-01 LED 1L0341Y23E0CA602 (I/1, STANDBY)

< TRANSISTOR >

Q301 8-729-120-28 TRANSISTOR 2SC1623-L5L6 Q302 8-729-037-13 TRANSISTOR KTA1271Y Q303 8-729-120-28 TRANSISTOR 2SC1623-L5L6 Q304 8-729-120-28 TRANSISTOR 2SC1623-L5L6 Q305 8-729-120-28 TRANSISTOR 2SC1623-L5L6

Q306 8-729-038-28 TRANSISTOR RT1N441C-TP-1 Q307 6-551-696-01 TRANSISTOR ISA1235AC1TP-1EF Q308 8-729-038-28 TRANSISTOR RT1N441C-TP-1 Q309 8-729-040-76 TRANSISTOR KTA1273-Y-AT Q310 8-729-120-28 TRANSISTOR 2SC1623-L5L6

Q311 8-729-024-43 TRANSISTOR 2SA1365-T112-1EF Q312 8-729-024-43 TRANSISTOR 2SA1365-T112-1EF Q313 8-729-024-43 TRANSISTOR 2SA1365-T112-1EF Q314 8-729-024-43 TRANSISTOR 2SA1365-T112-1EF Q315 8-729-047-62 TRANSISTOR 2SC3440-T12-1F

Q316 8-729-047-62 TRANSISTOR 2SC3440-T12-1F Q317 8-729-047-62 TRANSISTOR 2SC3440-T12-1F Q318 8-729-047-62 TRANSISTOR 2SC3440-T12-1F

< RESISTOR >


R306 1-216-809-11 METAL CHIP 100 5% 1/10W

R307 1-216-809-11 METAL CHIP 100 5% 1/10W R308 1-216-809-11 METAL CHIP 100 5% 1/10W R309 1-216-809-11 METAL CHIP 100 5% 1/10W R310 1-216-809-11 METAL CHIP 100 5% 1/10W




R327 1-216-809-11 METAL CHIP 100 5% 1/10W R328 1-216-833-11 METAL CHIP 10K 5% 1/10W R329 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R330 1-216-819-11 METAL CHIP 680 5% 1/10W R331 1-216-845-11 METAL CHIP 100K 5% 1/10W


R337 1-216-813-11 METAL CHIP 220 5% 1/10W R338 1-216-789-11 METAL CHIP 2.2 5% 1/10W R339 1-216-789-11 METAL CHIP 2.2 5% 1/10W R340 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R341 1-216-839-11 METAL CHIP 33K 5% 1/10W

R342 1-216-849-11 METAL CHIP 220K 5% 1/10W R343 1-216-853-11 METAL CHIP 470K 5% 1/10W R344 1-216-826-11 METAL CHIP 2.7K 5% 1/10W R345 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R346 1-216-841-11 METAL CHIP 47K 5% 1/10W

R347 1-216-817-11 METAL CHIP 470 5% 1/10W R348 1-216-841-11 METAL CHIP 47K 5% 1/10W R349 1-216-817-11 METAL CHIP 470 5% 1/10W R350 1-216-841-11 METAL CHIP 47K 5% 1/10W R351 1-216-817-11 METAL CHIP 470 5% 1/10W

R352 1-216-841-11 METAL CHIP 47K 5% 1/10W R353 1-216-817-11 METAL CHIP 470 5% 1/10W R354 1-216-841-11 METAL CHIP 47K 5% 1/10W R355 1-216-821-11 METAL CHIP 1K 5% 1/10W R356 1-216-821-11 METAL CHIP 1K 5% 1/10W



R367 1-216-837-11 METAL CHIP 22K 5% 1/10W

PANEL


HCD-EC68/EC78

60

R368 1-216-833-11 METAL CHIP 10K 5% 1/10W R369 1-216-821-11 METAL CHIP 1K 5% 1/10W R370 1-216-821-11 METAL CHIP 1K 5% 1/10W R371 1-216-821-11 METAL CHIP 1K 5% 1/10W

R372 1-216-821-11 METAL CHIP 1K 5% 1/10W R373 1-216-864-11 SHORT CHIP 0 R374 1-216-821-11 METAL CHIP 1K 5% 1/10W R375 1-216-864-11 SHORT CHIP 0 R376 1-216-833-11 METAL CHIP 10K 5% 1/10W

R377 1-216-833-11 METAL CHIP 10K 5% 1/10W R378 1-216-839-11 METAL CHIP 33K 5% 1/10W R379 1-216-843-11 METAL CHIP 68K 5% 1/10W R380 1-216-817-11 METAL CHIP 470 5% 1/10W R381 1-216-833-11 METAL CHIP 10K 5% 1/10W


R387 1-216-821-11 METAL CHIP 1K 5% 1/10W R389 1-216-838-11 METAL CHIP 27K 5% 1/10W

(EC68: UK) R389 1-216-841-11 METAL CHIP 47K 5% 1/10W

(EC68: AEP, RU, E2, E3, E51, MX, AR, AUS) R389 1-216-845-11 METAL CHIP 100K 5% 1/10W

(EC78) R390 1-216-833-11 METAL CHIP 10K 5% 1/10W

R391 1-216-821-11 METAL CHIP 1K 5% 1/10W(EC68: AEP, UK, RU/EC78: AEP, RU)

R391 1-216-825-11 METAL CHIP 2.2K 5% 1/10W(EC68: AUS)

R391 1-216-830-11 METAL CHIP 5.6K 5% 1/10W(EC68: E3/EC78: E3)

R391 1-216-841-11 METAL CHIP 47K 5% 1/10W(EC68: E2/EC78: E2)

R391 1-216-845-11 METAL CHIP 100K 5% 1/10W(EC68: E51, MX, AR/EC78: E51, MX, AR)

R392 1-216-833-11 METAL CHIP 10K 5% 1/10W(EC68: RU, E2, E3, E51, MX, AR, AUS/

EC78: RU, E2, E3, E51, MX, AR) R396 1-216-851-11 METAL CHIP 330K 5% 1/10W R400 1-216-821-11 METAL CHIP 1K 5% 1/10W R401 1-216-821-11 METAL CHIP 1K 5% 1/10W R402 1-216-845-11 METAL CHIP 100K 5% 1/10W

R405 1-216-822-11 METAL CHIP 1.2K 5% 1/10W R406 1-216-823-11 METAL CHIP 1.5K 5% 1/10W R412 1-216-822-11 METAL CHIP 1.2K 5% 1/10W R413 1-216-823-11 METAL CHIP 1.5K 5% 1/10W R414 1-216-825-11 METAL CHIP 2.2K 5% 1/10W

R415 1-216-826-11 METAL CHIP 2.7K 5% 1/10W R416 1-216-828-11 METAL CHIP 3.9K 5% 1/10W R417 1-218-867-11 METAL CHIP 6.8K 0.5% 1/10W R418 1-216-835-11 METAL CHIP 15K 5% 1/10W R419 1-216-838-11 METAL CHIP 27K 5% 1/10W

R420 1-216-845-11 METAL CHIP 100K 5% 1/10W R421 1-216-833-11 METAL CHIP 10K 5% 1/10W R422 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R425 1-216-864-11 SHORT CHIP 0 (EC68: UK) R426 1-216-845-11 METAL CHIP 100K 5% 1/10W

R428 1-216-841-11 METAL CHIP 47K 5% 1/10W R446 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R447 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

< ROTARY ENCODER >

S301 1-786-417-11 ENCODER, ROTARY (VOLUME)

< SWITCH >

SW303 1-771-410-21 SWITCH, TACTILE (l m − TUNING) SW304 1-771-410-21 SWITCH, TACTILE (FUNCTION) SW305 1-771-410-21 SWITCH, TACTILE (TUNING + M L) SW311 1-771-410-21 SWITCH, TACTILE (CD N) SW312 1-771-410-21 SWITCH, TACTILE (X)

SW313 1-771-410-21 SWITCH, TACTILE (x) SW314 1-771-410-21 SWITCH, TACTILE (FOLDER +) SW315 1-771-410-21 SWITCH, TACTILE (FOLDER −) SW316 1-771-410-21 SWITCH, TACTILE (EQ) SW317 1-771-410-21 SWITCH, TACTILE (DSGX)

SW318 1-771-410-21 SWITCH, TACTILE (PLAY MODE/TUNING MODE) SW319 1-771-410-21 SWITCH, TACTILE (DISPLAY)

< VIBRATOR >

X301 1-814-067-11 OSCILLATOR, CRYSTAL (32.768kHz) X302 1-813-548-21 VIBRATOR, CERAMIC (6MHz)************************************************************

PT BOARD *********

< CAPACITOR >

C051 1-165-621-91 CERAMIC CHIP 0.1uF 50V C052 1-164-156-11 CERAMIC CHIP 0.1uF 25V

< CONNECTOR >

CN051 1-819-972-11 HOLDER, CABLE 8P0 CN053 1-793-660-11 PIN, CONNECTOR (PC BOARD) 3P

< DIODE >

D051 6-500-334-01 DIODE MC2836-T112-1 D052 6-500-335-01 DIODE MC2838-T112-1 D055 6-500-335-01 DIODE MC2838-T112-1

< TRANSFORMER >

0 PT001 1-443-912-11 TRANSFORMER, POWER(EC68: AEP, UK, RU/EC78: AEP, RU)

0 PT002 1-445-105-11 TRANSFORMER, POWER (EC68: E2, E3, E51, MX, AR, AUS/EC78: E2, E3, E51, MX, AR)

< RELAY >

0 RY001 1-755-334-11 RELAY, AC POWER(EC68: AEP, UK, RU/EC78: AEP, RU)

0 RY002 1-755-496-11 RELAY (EC68: E2, E3, E51, MX, AR, AUS/EC78: E2, E3, E51, MX, AR)

< SWITCH >

0 S001 1-786-408-11 SELECTOR, VOLTAGE (SWS-2301)(VOLTAGE SELECTOR)

(EC68: E2, E3, E51/EC78: E2, E3, E51)************************************************************

PANEL PT


HCD-EC68/EC78

6161

REG BOARD *********

< CAPACITOR >


< IC >

IC601 8-759-231-56 IC TA7809S

< CABLE HOLDER >

W610 1-824-027-21 HOLDER, CABLE 3P************************************************************

MISCELLANEOUS **************

51 1-833-801-21 CABLE, FLEXIBLE FLAT (9 CORE) (EXCEPT EC68: UK)

60 1-797-575-11 DECK, MECHANICAL (CS-21SC-900TP) (EXCEPT EC68: UK)

60 A-1527-851-A TCM-J1//C (EXCEPT EC68: UK) 107 1-832-906-21 CABLE, FLEXIBLE FLAT (27 CORE) 110 1-831-774-21 CABLE, FLEXIBLE FLAT (9 CORE)

151 1-832-838-21 CABLE, FLEXIBLE FLAT (13 CORE)0 156 1-769-744-81 CORD, POWER (EC68: UK)0 156 1-829-387-11 CORD, POWER (EC68: AR/EC78: AR)0 156 1-834-966-21 CORD, POWER (EC68: AEP, RU, E2, E3, E51/

EC78: AEP, RU, E2, E3, E51)0 156 1-834-967-21 CORD, POWER (EC68: AUS)

0 156 1-834-978-11 CORD, POWER (EC68: MX/EC78: MX) 157 1-834-181-21 CABLE, FLEXIBLE FLAT (21 CORE) 202 1-831-744-21 CABLE, FLEXIBLE FLAT (5 CORE) 203 1-835-276-21 CABLE, FLEXIBLE FLAT (5 CORE) (EC78) 251 1-797-193-12 MECHANICAL, CD (DLM3A)

0 256 A-4735-357-A BASE ASSY, OP (KSM-213D) 257 1-832-404-21 CABLE, FLEXIBLE FLAT (16 CORE)0 M601 1-787-400-11 D.C. FAN (EC68/EC78: E2, E3, E51, MX, AR)0 M601 1-787-631-11 FAN, DC (EC78: AEP, RU)0 PT003 1-445-117-11 TRANSFORMER, POWER (EC68: AEP, RU)

0 PT003 1-445-338-11 TRANSFORMER, POWER (EC68: MX)0 PT003 1-445-346-11 TRANSFORMER, POWER

(EC68: E2, E3, E51, AR, AUS)0 PT003 1-445-432-11 TRANSFORMER, POWER (EC68: UK)0 PT004 1-445-119-11 TRANSFORMER, POWER

(EC78: E2, E3, E51, AR)0 PT004 1-445-341-11 TRANSFORMER, POWER (EC78: AEP, RU)

0 PT004 1-445-344-11 TRANSFORMER, POWER (EC78: MX) S201 1-771-853-11 SWITCH, DETECTION (LIMIT)************************************************************* ACCESSORIES ************

0 1-569-008-22 ADAPTOR, CONVERSION 2P (EC68: E2, E3, E51/EC78: E2, E3, E51)

0 1-770-019-61 ADAPTOR, CONVERSION PLUG (EC68: UK)

REG

Note: When you exchange Ref.No.60, Please refer to “HOW TO DISTINGUISH TAPE MECHANISM DECK (EXCEPT EC68: UK MODEL)” of the service note (5 page).

HCD-EC68/EC78

REVISION HISTORY

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Ver. Date Description of Revision1.0 2008.02 New

SONY_HCD-EC68_EC78_ver-1.0

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