CYRUS CD Xt Signature CD PLAYER - Cyrus Audio

ENGINEERED TO ENTERTAIN

SERVICE MANUAL

171717 59:5759:5759:57

SPECIFICATIONS Digital output Coaxial and Optical SPDIF Output voltage 500mV pk‐pk Output impedance 75Ω Optical output Toslink Sample rate accuracy 44.1k ± 50ppm Clock jitter <80ps Disc compatibility CD Audio, CD‐R Dimensions (H x W x D) 73 x 215 x 360 (mm), 2.8 x 8.4 x14.1 (inches) Weight 3.5kg

CYRUS CD Xt Signature CD PLAYER

SERVICE CAUTIONS

© Cyrus Audio Ltd Aug 2014 Cyrus CD Xt Signature Service Manual Issue 1

These two symbols shown are displayed prominently on the CD player base cover label. They indicate that the following cautions must be observed by all personnel‐

CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER OR BACK.

THERE ARE NO USER SERVICEABLE PARTS INSIDE THE PRODUCT.

ALWAYS REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

CAUTION! LIVE MAINS VOLTAGES ON THE MAIN PCB!

When undertaking any repair work on the CD player, engineers should note that the player includes a switching power supply connected directly to live mains and other high voltages, located on the main PCB in the area highlighted in the red box.

To avoid the danger of electric shock ‐

Always unplug mains power before removing the main PCB.

Never connect mains power to the mains inlet or main PCB if the main PCB has been removed from the chassis.

When tracing signals anywhere on the main PCB exercise caution to keep fingers, tools and test probes etc away from the high voltage power supply section of the PCB.

Never use a grounded test probe to test the high voltage (primary) part of the power supply.

Ensure that the chassis insulator is correctly fitted under the mains PCB before refitting it into the chassis.

SERVICE CAUTIONS

© Cyrus Audio Ltd Aug 2014 Cyrus CD Xt Signature Service Manual Issue 1

The photo below shows the position of caution labels that alert the service technician to the presence of a laser device –

On the back panel

And on the disc loading mechanism

SERVICE MANUAL INDEX

© Cyrus Audio Ltd Aug 2014 1 CD Xt Signature Service Manual Issue 1

INDEX

SMD component replacement ..................... 2 Type identification ....................................... 4 Block diagram .............................................. 5 Technical description ................................... 6 Fault finding/disassembly ............................ 8 Flash Software ........................................... 11 MC‐BUS operation ..................................... 12 Chassis parts drawing/list .......................... 13 Front panel parts drawing/list ................... 15 Main PCB parts list ..................................... 16 Servo PCB parts list .................................... 21 Circuit diagrams ......................................... 24

SMD COMPONENT REPLACEMENT


Handling

SMD resistors and capacitors are widely used in the Cyrus range of products. When handling SMD components, certain precautions should be observed‐

Handling SMD resistors and capacitors

Always store SMD components in their original packaging or in a cool dry environment.

Always handle SMD resistors and capacitors with tweezers or a vacuum pencil.

Never handle SMD resistors and capacitors with fingers.

Hold the SMD component by the body, not by the ends.

Do not use SMD resistors or capacitors if the ends are dirty or discoloured.

Do not use SMD resistors or capacitors if they have been dropped on the floor‐ they may be internally damaged.

Always use replacement components of the correct size and shape. SMD components are available in many different packages. Where possible, order original parts from Cyrus.

Handling SMD ICs

Always store these components in their original packaging or in a cool dry environment.

Always handle SMD transistors and ICs with tweezers or a vacuum pencil.

Never handle SMD transistors and ICs with fingers.

Ensure that the connection pins of larger multi‐pin ICs are not deformed or damaged before fitting.

Measuring circuits with SMD capacitors and resistors

Avoid using sharp, pointed probes directly on the component end caps.

Measure voltages from the PCB pad next to the component.

Static precautions

SMD components, particularly ICs, may be damaged by the static levels present in the workshop. Damage caused by static may not immediately cause component failure but could cause partial damage and a possible failure in the future. Observing these simple SMD precautions will avoid product failures related to static damage‐

Always wear a grounded wristband when replacing any electronic components.

Always store components in their original packaging or conductive plastic bags.

Never store components in plastic trays or bags without protection.

Soldering/desoldering SMD components

Never re‐use old SMD components after de‐soldering!

Always apply solder heat directly to the contact area. Avoid over‐heating adjacent components.

Always repair SMD PCBs with the correct tools. SMD components can only be replaced with a hot air pencil or soldering iron designed for SMD components, preferably with temperature control.

Keep the soldering temperature as low as possible. 370ºC is recommended for Lead free SMD rework. Most SMD components will withstand 370ºC for 5 to 10 seconds

SMD COMPONENT REPLACEMENT


When using solder paste a pressure dispenser should be used to ensure the correct amount of solder is applied to each pad.

Solder paste should not be used with direct heating methods as the solder between component pins may not be melted.

If necessary, remove excess solder paste with solder braid.

Removing SMD resistors and capacitors from the PCB with a soldering iron

1. Fit the soldering iron with a tip large enough to bridge both ends of the component. 2. Place the soldering iron so that its flat tip will heat both ends of the component at once. 3. When the solder melts, remove the component with tweezers. 4. Allow the PCB to cool for a few minutes, removing any excess solder with desoldering

braid.

Fitting replacement SMD resistors and capacitors to the PCB with a soldering iron

1. Apply a little flux to the connections. 2. Place the component in position. 3. Tin the soldering iron, bring the tip into contact with the PCB pad and flow solder to the

joint. Avoid bringing the soldering iron tip directly into contact with the component.

Removing SMD ICs from the PCB

1. Using fine tipped side cutters or tweezer cutters, snip all the leads of the device and remove the IC body.

2. Desolder the leads from the PCB pads. 3. Clean up the PCB with solder braid.

Removing SMD ICs with a hot air SMD tool

1. Fit a suitable size tip for the IC being removed. 2. Heat the IC evenly until the solder melts. 3. Remove the IC with tweezers.

Fitting replacement ICs to the PCB with a soldering iron

1. Check that the pins of the IC are not distorted. 2. Using tweezers, position the IC over the footprint. 3. Check that all the IC pins are correctly aligned with the pads. 4. With a very fine tip soldering iron, solder in the pins at the corners of the IC. 5. Re‐check the alignment and correct if necessary. 6. When the alignment is OK, solder the remaining pins of the IC to the PCB.

TYPE IDENTIFICATION


Rating label

The CD Xt Signature carries a rating label on the rear panel, which includes details of the rated power supply voltage.

Nominal power voltage

This will be 220‐230V For use on nominal 220V ‐ 240V AC mains supply.

Power consumption

The maximum power consumption figure is indicated.

Serial number

Each CD player carries a serial number code, which identifies the following‐

Type of product

Market destination

Build number

Paint finish (colour)

The serial number is on the baseplate. It is therefore important to ensure that a baseplate removed from a product is re‐fitted to the same product. In any communications with Cyrus Service or Quality departments it is essential that the full serial number is quoted so that original specification parts and service information may be supplied.

PCB Identification

Each PCB is marked with a design revision number and this number should be quoted in all correspondence to the service department when requesting technical advice or requesting spare parts. The table below shows a typical PCB marking.

Revision number PCB marking

Main board revision 1 IS2112N1

BLOCK DIAGRAM


uC

on

tro

ller

IC7

01

MC

BU

S

OP

TIC

AL

Main PCB

CO

AX

IAL

LC

DIR

Key

s

RAD

FOC

MOT

SLED

BA

59

84

FP

SA

A7

82

6

Servo

PCB

LOA

D/

UN

LOA

D

IC4

01

IC4

02

IC6

01

74

HC

T8

6

IC6

04

74

HC

T1

4L

PC

17

52F

BD

80

IC6

02

DA

TA

RE

FO

RM

AT

TIN

G

IC6

03

74

HC

74

74

HC

57

4

SP

DIF

SPDIF ENCODER

IC402

AK4103

SP

DIF

BC

K

WS

DA

TA CO

NT

RO

L

CL

OC

K R

EG

EN

ER

AT

ION

IC6

05

74

HC

404

6X

TA

L60

1IC

60

67

4H

C1

61

BC

KW

SD

AT

AX

CL

K

BC

K

TECHNICAL DESCRIPTION


PCB assemblies

The following is a brief description of the internal PCBs found in the CD Xt Signature.

The servo PCB is mounted directly onto the CD mechanism, this includes the CD loader motor and sled drivers, the servo driver and CD decoder.

The main PCB is mounted in the base of the chassis and contains the power supplies, optical and coaxial SPDIF output and the user interface microcontroller. Disc reading/decoder module and servo PCB

The disc reading laser pickup is mounted in a motor driven slot loader, which receives its operating commands via the servo PCB. The heart of the servo PCB is the CD decoder Integrated Circuit IC401. This is controlled by software running on the main board micro controller IC701 via an I2C Bus. The microcontroller sends high level commands (e.g. Read TOC, Play track 1) to the servo PCB via a communication bus. Disc loading is controlled by the microcontroller on the servo PCB.

When a disc is inserted into the player the first thing that needs to happen is that the Table of Contents (TOC) of the disc is read. This information contains the start and end location of each track on the disc for disc navigation purposes. In order to read the TOC the laser is switched on by the decoder IC, and a focus ramp is initiated. If focus is found then the disc motor is switched on for a short time, then the PLL is switched on and the disc is accelerated to full speed. Once the speed had been achieved and the PLL is locked onto the data, the radial loop is switched on and the subcode will be read from the disc and fed to the decoder. The focus and radial positions of the laser spot are controlled by the decoder by looking at the diode signals coming from the optical pick up (OPU). These are D1,D2, D3 and D4 for focus, R1 and R2 for radial. The error signal from these diodes is used to generate a PDM signal. This signal is then filtered with a low pass filter and amplified by the motor driver (BA5984FP) to move the actuators. Power for the laser diode is supplied directly from the decoder IC which monitors laser output and adjusts the power accordingly. There is a single system clock on the servo board, 8.4672MHz. This is self‐generated by the decoder IC.

There are 2 main power supplies to the servo board, +5V_CD for the signal processing electronics and +5V_MOTOR to IC402 supplying motor and sled power. The +5V_CD supply is sub regulated to +3V3 and sub‐sub‐regulated to +1.8V on‐board for the decoder and other electronics.

TECHNICAL DESCRIPTION


Microprocessor control system

System control is provided by microcontroller IC701 on the main PCB. The microcontroller accepts external user commands (IR handset, front panel keys and MC‐BUS loop) and translates them into instructions that operate the CD mechanism, via commands sent to the servo PCB.

The microcontroller communicates with the decoder on the servo PCB via the CD_CL and CD_DA lines.

Digital Outputs

The audio data from the servo PCB is fed to the main PCB as three digital signals DATA, WS and BCK in the cable assembly CON701 (the SPDIF signal is not used in this application). The data is then buffered by IC601 on the main PCB. The data signals are then re‐clocked and re‐formatted by IC602 and IC603.

An ultra‐stable audio master clock (XCLK) is generated by the PLL/VCO circuit IC605/XTAL601/IC606, synchronised to the BCK signal from the servo PCB. This master clock is routed to the data re‐clocking and re‐formatting circuits. The master clock and re‐formatted data are supplied to the audio output encoder IC402 which generates a digital audio SPDIF signal.

The SPDIF data is fed via buffer IC604 to the optical output (TOTX401) and to the RCA coaxial output (via digital transformer L402). Power supplies

The internal regulated power supplies for the disc playing and digital sections are derived from a switching power supply on the main PCB. This has two separate outputs, +5V and +10V. The 10V supply drives the display backlight via a switchable current source T702/T706/T707. The 5V supply drives the signal processing parts of the circuit. A separate linear power supply provides a power supply for the motors on the disc playing mechanism and a separate power supply for the PLL. A toroidal power transformer, mounted on the chassis provides a.c. power directly to the main PCB which is then rectified, smoothed and regulated by VR801 for the PLL and a discrete regulator based around T803 for the motor stages. Standby power control for the power transformer is provided by relay RLY801 on the main PCB. Front panel display

The front panel display is a backlit LCD module mounted in a moulding behind the front panel. The LCD module is driven by signals from microcontroller IC701 pins 37 and 38 (DISP_DATA and DISP_SCLK). IC701 also reads back an analogue voltage encoded from keys pressed on the front panel (via KEYS_IN1 pin 7), and remote control information from the eye via line RC5_IN pin 32.

FAULT FINDING/DISASSEMBLY


CAUTION! LIVE MAINS VOLTAGES!

When undertaking any repair work on the CD player, engineers should note that the player includes a switching power supply connected directly to live mains and other high voltages, located on the main PCB. Capacitors in the power supply will retain very high DC voltages, even when disconnected from the mains. Exercise extreme care when removing or handling the main PCB.

Switching power supply repair

If a power supply fault is suspected, check the voltage of the 5V and 10V power supplies on the main PCB. These can be found at the SMD electrolytic capacitors C506 and C507. If either or both of these power supplies is missing, there may be a power supply fault or a short‐circuit to the power supply in question.

The primary side of the power supply can only be tested with an isolated DVM when the main PCB is installed correctly in the chassis. Never connect power to the main PCB when it has been removed from the chassis or use any grounded test equipment such as oscilloscopes to check for primary faults.

Initially, check the DC supply voltage across the '+' and '‐' pins of D501. The voltage found will depend on the mains voltage, but will be between 300‐350V. If this voltage is not present, disconnect mains power and check the miniature fuse FS801. If the fuse is OK, remove the PCB and check the primary components with a DVM resistance meter.

If the DC supply voltage is present and the power supply is not running, check the voltage between pins 1 and 8 of IC501. This is about 0.9V in normal operation. If this voltage is low, check R501. Check also the bias supply between pins 2 and 8 of IC501. This should be around 6V, but will only be present if the switching supply is switching correctly. If the supply is not switching, suspect a problem with IC501 or TX501. TX501 can be checked with a DVM set for resistance.

The secondary supplies are simple rectified supplies. The 'FEEDBACK' line provides close regulation for the +5V supply while the +10V supply may vary a little in voltage. If the +5V supply is not accurately set, this is most likely a component fault in IC502 or the network of components around it.

Linear power supply repair

The linear power supply is located on the main PCB and is of conventional design. First check that the secondary a.c. voltage is present from the power transformer. If this is missing, check if the power switch relay RL801 is switching on. The relay is located on the main PCB, driven by T804. If the secondary voltage is present, the power supplies can be traced through the rectifiers and regulators on the main PCB.



Disc will not read

If the disc will not read, check to see if the disc is rotating. If the disc is rotating then it means that the laser has focussed on the disc, therefore all power supplies are ok. If the disc does not rotate then check the power supplies to the servo PCB at pins +5V_MOTOR and +5V_CD on connector CON405 of the servo PCB. If the power supplies are working correctly, remove the loader and substitute the laser pickup with a new replacement unit. If the disc will still not read, substitute with a new servo PCB.

CAUTION! When disconnecting the flexfoil cable from the laser pickup to the servo PCB, always ensure that static precautions are taken with a grounded static mat and wrist‐strap as the laser pickup can easily be damaged by relatively low levels of static. When the disc reading mechanism or laser pickup are removed from the chassis, it is preferable to fit a flexfoil and use a metal paper clip or similar to bridge all open connections as static protection when handling the pickup.

Removing the loading mechanism with laser pickup

Disconnect mains power.

Disconnect the flexfoil from CON405 on the servo PCB.

Remove the two screws securing the mounting cradle to the chassis.

Slide the loader and cradle back in the chassis to disengage the front, then lift the complete assembly from the chassis.

Removing the cradle

Once the PCB has been removed, the cradle can be separated from the loader after removing the two self‐locking nuts.

Removing the servo PCB

In a static safe environment, disconnect the flex foil from CON401 on the servo PCB. Use a metal paper clip to short the exposed end of the flex‐foil and protect from static damage. Disconnect the cable plugs from CON402, CON403 and CON404. The PCB securing screws can now be removed and the servo PCB lifted clear.



Replacing the loading mechanism with laser pickup

Replacement is generally a reversal of removal, but note the following important steps ‐

Once the servo PCB has been fitted and the flexfoil cable from the laser pickup connected to CON401, the solder‐short that protects the pickup from static must be removed. This is accessible through the window on top of the loader as shown.

Removal of the solder‐short static protection:

Once the solder‐short is removed, the loader can be fitted to the cradle and then to the chassis.

Digital output faults

The digital output drive circuits are relatively straightforward. If the disc is playing, check the presence of the digital output signal from the DOBM pin of CON405 on the servo PCB. This signal should then appear on the main PCB at IC601, then IC604 before passing through L402 to the digital outputs.

Removing the front panel PCB

If a fault is diagnosed which requires the removal of the front panel PCB, proceed as follows. First, following the instructions above, remove the loading mechanism. Now disconnect the flexfoil running to the front panel PCB. Finally, the complete front panel assembly including display PCB may now be pressed forward out of the front of the chassis. Remove the fixing screws and the front panel PCB may now be lifted off the front panel assembly. The only part available for service of this PCB is the remote eye. If there are other faults with this PCB it will be necessary to replace the PCB assembly.

FLASH SOFTWARE


Flash Software Overview

The CD players feature upgradeable software for the control system. The main PCB includes a microcontroller with internal memory that includes the software.

The microcontroller is labelled during the manufacturing process to show which software version is installed. If the software version is revised at some point this indication should be clearly deleted with a cross marked on the device label. The most reliable method to check the software version (without dismantling the player) is to read it from the display as follows ‐

1. Connect power to the unit and set to Standby (power light red). 2. Press and hold the Standby key. 3. The software version will be shown on the display.

Re‐programming

NOTE: Product software must never be replaced with an earlier version than already installed.

The CD players are programmed by connecting a USB cable directly from the main PCB to a computer. The location of the programming connector on the control PCB is arrowed in the picture on the right.

CAUTION: Ensure you have a new firmware file to hand before starting the process. Never disconnect the cable until the new software is installed. 1. Disconnect the mains from the product. 2. Locate SW702, a microswitch next to the USB connector

shown in the drawing. 3. Press and hold SW702. 4. Connect a mini‐USB cable to a free USB port on a computer. 5. Connect the mini‐USB cable to the socket on the main PCB. 6. The Red LED on the main PCB will light to indicate that USB

power is available. 7. Release SW702. 8. A new window will pop up on the PC which will show the

current firmware.bin file. 9. Delete the existing firmware.bin file. 10. Copy the new firmware.bin file supplied by Cyrus to this

folder. 11. Once the file has been copied remove the USB cable. 12. Power up and check the new software version as described

above.

MC‐BUS SYSTEM


The MC‐BUS system

MC‐BUS is a system which provides communication between the control systems of a number of Cyrus products. The communication takes the form of a serial data stream which is sent from a 'master' product and received and repeated by 'slave' products. The data is thus passed from one product to another around a loop. The master product should then receive the message back which confirms that loop connections have been correctly made. The CD player is a 'slave' product and listens for 'CD' commands from the master product in the loop (usually an amplifier or surround decoder). MC‐BUS internal signal routing

MC‐BUS control is provided by the system microcontroller IC701. The signals are buffered into and out of this IC as shown in the diagram, The resistor bias at the MC‐BUS input ensures that the line idles high (+5V) if no MC‐BUS connection is made to another product.

MC‐BUS system tests

The MC‐BUS system can be tested by connecting the CD player into a known working Cyrus system. Note that MC‐BUS must be connected as a closed loop as shown in the diagram below. It is also important to connect the audio signal cables between components to provide an adequate ground return path for the MC‐BUS signals. Switch on the power to the system and set all components to Standby. Selecting the CD input on the amplifier or switching on a surround decoder will now activate the CD player. When the amplifier is set to Standby, all other components connected to the MC‐BUS loop will also set to Standby.

CD player

Amplifier

MC‐Bus output

MC‐Bus output

MC‐Bus input

MC‐Bus input

IC401F

+5V

IC401E

IC401A

IC401B

IC701

MCBus out

MCBus in

49

50

CHASSIS PARTS DRAWING


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CHASSIS PARTS DRAWING


Main chassis

Ref Part number Description

1 I2‐BACKP/T Rear panel

2 AM‐FCORE/DXP Ferrite filter small

3 AM‐MTERM/ AC power inlet

4 I2‐CBPOW/080 Power cable 80mm

5 I2‐INSUL/ PCB insulator

6 DS‐PCLIP/ Cable clip

7 I2‐M6X40/ Transformer bolt and nut

DX‐M6WAS/ M6 star washer

8 DX‐MLFLT/ Ferrite filter large

9* I6‐CB12W/200 Flex foil cable 12 way 200mm long

10 I6‐TX230/ Power transformer

11 I2‐LOADR/ASY ASA CD mechanism including servo PCB

12 AM‐COVER/BR

AM‐COVER/S1

Chassis ‐ black

Chassis ‐ silver

13 I2‐CB25W/170 Flex foil cable 25 way 170mm long

14 I2‐CRADL/ Mechanism mounting cradle SE players

15 D1‐H6238/B Clip on heatsink

16 I2‐MBSTD/XT Main PCB assembly

* Located under the power transformer and loader

FRONT PANEL PARTS DRAWING


17 59:57

i1)

a b c de hfg

Front Panel parts

1 AM‐POWCP/ Standby knob trim

2 AM‐PLENS/02 Power lens

3 AM‐LENSM/02 Remote eye lens

4 CD‐DISPW/ Display window

5 I6‐MBDIS/02 Display PCB

6 CD‐FACSE/B CD‐FACSE/S

Front facia black Front facia silver

7 I2‐FRONT/ I2‐FRONT/S

Technical Moulding black Technical Moulding silver

8 I2‐BEZEL/ CD slot trim

9 AM‐BPPLT/V0 Base plate

10 AM‐BFOOT/ Rubber foot

MAIN PCB PART LIST


RESISTORS R401 SMD0603 47k TF 1/10W 1%

R402 SMD0603 47k TF 1/10W 1%

R403 SMD0603 150R TF 1/10W 1%

R404 SMD0603 150R TF 1/10W 1%

R405 SMD0603 160R TF 1/10W 1%

R406 SMD0603 47R TF 1/10W 1%

R407 SMD0603 75R TF 1/10W 1%

R408 SMD0603 47k TF 1/10W 1%

R501 AXIAL0.5 3.9M MF 0.6W 1%

R502 SMD1206 22k TF 1/4W 1%

R503 SMD0603 1k TF 1/10W 1%

R504 SMD1206 39R TF 1/4W 1%

R505 AXIAL0.5 120R MF 0.6W 1%

R506 AXIAL0.5 120R MF 0.6W 1%

R507 SMD0603 560R TF 1/10W 1%

R508 SMD0603 10k TF 1/10W 1%

R509 SMD0603 10k TF 1/10W 1%

R511 SMD0603 130R TF 1/10W 1%

R512 SMD0603 18R TF 1/10W 1%

R602 SMD0603 47k TF 1/10W 1%

R603 SMD0603 Not fitted


R605 SMD0603 100R TF 1/10W 1%

R606 SMD0603 100R TF 1/10W 1%

R607 SMD0603 100R TF 1/10W 1%


R609 SMD0603 91R TF 1/10W 1%

R610 SMD0603 120R TF 1/10W 1%

R611 SMD0603 0R TF 1/10W 5%


R613 SMD0603 47k TF 1/10W 1%








R701 SMD0603 1k TF 1/10W 1%

R702 SMD0603 1k TF 1/10W 1%

R703 SMD0603 1k TF 1/10W 1%

R704 SMD0603 120R BLM18SG121TN1D Not fitted

R705 SMD0603 47k TF 1/10W 1%

R706 SMD0603 47k TF 1/10W 1%

R707 SMD0603 47k TF 1/10W 1%

R708 SMD0603 47k TF 1/10W 1%



R711 SMD0603 10R TF 1/10W 1%

R712 SMD0603 5R6 TF 1/10W 1%

R713 SMD0603 1R0 TF 1/10W 1%

MAIN PCB PART LIST


R714 SMD0603 1k5 TF 1/10W 1%

R715 SMD0603 100k TF 1/10W 1%

R716 SMD0603 47R TF 1/10W 1%

R717 SMD0603 47R TF 1/10W 1%

R718 SMD0603 10k TF 1/10W 1%

R719 SMD0603 0R TF 1/10W 5%


R802 SMD0603 10k TF 1/10W 1%

R804 SMD0603 110R TF 1/10W 1%

R805 SMD0603 330R TF 1/10W 1%

R811 SMD0603 330R TF 1/10W 1%

R813 SMD0603 47k TF 1/10W 1%

R814 SMD0603 100k TF 1/10W 1%

RP401 SAD CAY16 100R TF 1/16W 5%

RP402 SAD CAY16 1k TF 1/16W 5%

RP601 SAD CAY16 100R TF 1/16W 5%

RP603 SAD CAY16 100R TF 1/16W 5%

RP605 SAD CAY16 100k TF 1/16W 5%

RP609 SAD CAY16 100R TF 1/16W 5%

RP701 SAD CAY16 100R TF 1/16W 5%

RP702 SAD CAY16 Not fitted

RP704 SAD CAY16 10k TF 1/16W 5%

RP705 SAD CAY16 100R TF 1/16W 5%

RP706 SAD CAY16 Not fitted

CAPACITORS C401 SMD0603 47p CP 50V 5%

C402 SMD0603 Not fitted

C403 SMD0603 22n CP 25V 10%

C404 SMD0603 22n CP 25V 10%

C405 SMD0603 22p CP 50V 5%

C406 SMD0603 22p CP 50V 5%


C409 SMD0603 1n CP 50V 5%

C413 SMD0603 1u CP 16V 10%

C414 SMD0603 100pF CP 50V 5%

C415 SMD0603 100n CP 25V 10%

C416 SMD0603 1n CP 50V 5%

C417 SMD0603 100n CP 25V 10%

C501 RB.2/.5 10uF EL 450V 20%

C502 RB.2/.5 22uF EL 400V 20%

C503 RAD0.3/RAD0.4 100pF Y1 CAP Y1 250V 10% May be 100pF or 2.2nF. Use 100pF for replacement.

C504 RB.2/.4 1200uF EL 16V 20%

C505 RB.2/.4 1200uF EL 16V 20%

C506 CAPSMD6.3 100uF EL 25V 20%

C507 CAPSMD6.3 220uF EL 16V 20%

C508 RB.2/.2 1uF EL 50V 20%

C509 RB.2/.2 1uF EL 50V 20%

C510 RAD0.2/RAD0.3 100n CP 630V 10%

C511 SMD0603 100n CP 25V 10%

C512 SMD0603 100n CP 25V 10%

C513 SMD0603 560p CP 50V 5%

MAIN PCB PART LIST


C514 SMD0603 82p CP 50V 5%

C516 RAD0.4 10n PP 1kV 5%

C517 SMD0603 100n CP 25V 10%

C601 SMD0603 22n CP 25V 10%

C602 SMD0603 22n CP 25V 10%

C603 SMD0603 22n CP 25V 10%


C605 SMD0603 22n CP 25V 10%

C606 SMD0603 22n CP 25V 10%

C607 SMD0603 22n CP 25V 10%

C608 SMD0603 22n CP 25V 10%


C610 SMD0603 1n CP 50V 5%

C611 CAPSMD5.0 100uF EL 6.3V 20%

C612 CAPSMD4.0 22uF EL 16V 20%

C613 RAD0.2 Not fitted


C701 SMD0603 100n CP 25V 10%

C702 SMD0603 100n CP 25V 10%

C703 SMD0603 100p CP 50V 5%

C704 SMD0603 22n CP 25V 10%

C705 SMD0603 22n CP 25V 10%

C706 SMD0603 22n CP 25V 10%

C707 SMD0603 22n CP 25V 10%

C708 SMD0603 22n CP 25V 10%

C709 SMD0603 22n CP 25V 10%

C710 SMD0603 22n CP 25V 10%

C711 SMD0603 22n CP 25V 10%

C712 SMD0603 1u CP 16V 10%

C713 SMD0603 100n CP 25V 10%

C714 SMD0603 100n CP 25V 10%

C716 SMD0603 15p CP 50V 5%

C717 SMD0603 15p CP 50V 5%

C718 SMD0603 100n CP 25V 10%

C802 RB.2/.5 2200uF EL 10V 20%

C803 SMD0805 100n CP 50V 10%

C804 SMD0805 100n CP 50V 10%

C805 SMD0805 100n CP 50V 10%

C806 SMD0603 22n CP 25V 10%

C807 SMD0603 22n CP 25V 10%

C808 SMD0603 22n CP 25V 10%

C809 SMD0603 22n CP 25V 10%

C810 SMD0603 22n CP 25V 10%

C811 SMD0603 22n CP 25V 10%

C812 SMD0603 22n CP 25V 10%

C813 SMD0603 22n CP 25V 10%

C814 SMD0603 22n CP 25V 10%

C818 SMD0603 22n CP 25V 10%

C819 SMD0603 22n CP 25V 10%

C820 RAD0.8 100n X CAP X2 250V 20%


C824 RB.3/.6 4700uF EL 16V 20%



MAIN PCB PART LIST


C828 SMD0603 22n CP 25V 10%

C829 SMD0603 22n CP 25V 10%


CP701 SAD 0612‐4 10n CP 25V 10%

CP702 SAD 0612‐4 100pF CP 100V 10%

CP703 SAD 0612‐4 100pF CP 100V 10%

CP704 SAD 0612‐4 100pF CP 100V 10%

Key: CP = ceramic plate. EL = electrolytic. PE = polyester. PP = polypropylene. BP = bi‐polar. CAPSMD6.3 refers to surface mount device with 6.3mm pitch pads SMD‐0805 refers to surface mount device size code 0805

DIODES D401 SOT‐23 BAS16 Signal diode

D402 SOT‐23 BAS16 Signal diode

D501 DIODEBR2‐SM DF04S‐E3 1A bridge rectifier

D502 DIODE0.5 P6KE200A Transient voltage suppressor

D503 DIODE0.5 1N4935 Fast recovery diode

D504 SOT‐23 DA3X108K0L Signal diode Change to DA3X108K0L from BAS16

D505 SMC SSC54‐E3/57T Rectifier

D506 SMC SS35‐E3/57T Rectifier

D507 SOT‐23 TL432ASA‐7 Adjustable zener diode

D701 SOT‐23 KM‐23HD Red LED

D803 SOT‐23 BZX84‐C6V8 Zener diode

D804 DIODEBR2‐SM DF04S‐E3 1A Bridge rectifier

D805 PSM 1SR154‐400 Rectifier

D806 SOT‐23 BAS16 Signal diode

TRANSISTORS T701 SOT‐23 DRC2113Z0L Signal transistor

T702 SOT‐23 DRC2113Z0L Signal transistor

T703 SOT‐23 DRC2143T0L Signal transistor

T704 SOT‐23 DRA2114Y0L Signal transistor

T705 SOT‐23 DRA2114Y0L Signal transistor

T706 SOT‐23 BC807‐25, 215 Signal transistor

T707 DPAK1 MJD32CT4G Power transistor SMD

T801 SC‐74‐2 IMZ1A Dual signal transistor

T803 TO‐220H2 TIP31CG Power transistor



FET701 SOT‐23 IRLML6401TRPbF P channel power MOSFET

FET702 SOT‐23 IRLML6401TRPbF P channel power MOSFET

INTEGRATED CIRCUITS IC401 TSSOP14 CD74HCT14PWR Hex inverter

IC402 VSOP24 AK4103AVFP Digital output encoder

IC501 DIP‐8C TNY377PN SWMPSU driver

IC502 SO‐4 SFH6206‐2 Opto coupler

IC601 SO‐14 CD74HCT86M Quad XOR

IC602 TSSOP20 SN74HC574PWT Octal latch

MAIN PCB PART LIST


IC603 TSSOP14 SN74HC74PWT Dual D type flip‐flop

IC604 TSSOP14 CD74HCT14PWR Hex inverter

IC605 SO‐16 CD74HC4046AM PLL and VCO

IC606 TSSOP16 SN74HC161 Synchronous binary counter

IC701 LQFP80 LPC1752FBD80, 551 Microcontroller

VOLTAGE REGULATORS VR801 SOT223 LM1117MPX‐ADJ Adjustable voltage regulator

VR802 SOT223 LM1117MPX‐3.3 800mA voltage regulator

FILTERS, INDUCTORS & CRYSTALS L402 COIL_SMD_8x6 750050480 Pulse transformer

L501 COIL‐ELF15 B82731M2132A030 6.8mH 1.3A

L502 SMDLH 4.7uH SMD inductor

L503 SMDLH 4.7uH SMD inductor

L601 SMD1210 Not fitted

L602 SMD1210 1uH SMD inductor

X701 XTAL_GSX‐333 12.000MHz GSX‐333 (MA07943)

Crystal

XTAL601 XTAL‐SMD6 33.8688MHz GVXO‐55 (MP04886)

VCXO module

CONNECTORS & SOCKETS CON601 CONLIF16T‐SM 52808‐1670 Not fitted

CON701 CONLIF25T‐SM 52808‐2570 25 way LIF connector

CON702 HEADER Not fitted

CON703 SIL_6W Not fitted

CON704 CONLIF12S 00‐8370‐127‐000‐800+

12 way LIF connector

CON801 2.8mm QC TAB37800568 2.8mm QC tab

CON802 2.8mm QC TAB37800568 2.8mm QC tab

CON803 3 PIN KK HEADER 0010321031 3 pin header

CON804 CONMINIPWR6 39‐30‐1062 Connector for power TX

CON805 RAD0.1 TSW‐102‐23‐L‐S 2 pin header

SK401 PHONOSNGL Single phono

SK402 PHONODUAL 12HP070HSG Dual phono

SK701 CON‐USB‐67803 651005136421 Mini‐USB connector

OTHER PARTS FS801 FUSE_UMZ 3404.2416.11 Miniature fuse T1A

RLY801 RELAY_G5NB G5NB1AE5DC Power relay

SW701 TACT‐2‐RTANGLE Not fitted

SW702 TACT‐2‐RTANGLE KSS321G LFS Tact switch

TOTX401 TOX179 GP1FAV51TK0F Optical transmitter

TX501 TX‐EF20 094‐931 SMPS transformer

SERVO PCB PART LIST


RESISTORS R401 SMD0603 220R TF 1/16W 1%

R402 SMD0603 750R TF 1/16W 1%

R403 SMD0603 10R TF 1/16W 1%

R404 SMD0603 10R TF 1/16W 1%

R405 SMD0603 100R TF 1/16W 1%

R406 SMD0603 100R TF 1/16W 1%

R407 SMD0603 10k TF 1/16W 1%

R408 SMD0603 47R TF 1/16W 1%

R409 SMD0603 100k TF 1/16W 1%

R410 SMD0603 24k TF 1/16W 1%

R411 SMD0603 22k TF 1/16W 1%

R412 SMD0603 3.6k TF 1/16W 1%

R413 SMD0603 30k TF 1/16W 1%

R414 SMD0603 3k6 TF 1/16W 1%

R415 SMD0603 4.7k TF 1/16W 1%

R416 SMD0603 30k TF 1/16W 1%

R417 SMD0603 4.7k TF 1/16W 1%

R418 SMD0603 4.7k TF 1/16W 1%

R419 SMD0603 120R BLM18SG121TN1D 0%

R420 SMD0603 4.7k TF 1/16W 1%

R421 SMD0603 22k TF 1/16W 1%

R422 SMD0603 22k TF 1/16W 1%

R423 SMD0603 1R0 TF 1/16W 1%


R425 SMD0603 10k TF 1/16W 1%

R426 SMD0603 100R TF 1/16W 1%

R427 SMD0603 2k2 TF 1/16W 1%

R428 SMD0603 4.7k TF 1/16W 1%

R429 SMD0603 10k TF 1/16W 1%

R430 SMD0603 10k TF 1/16W 1%

R431 SMD0603 4.7k TF 1/16W 1%

R432 SMD0603 1R0 TF 1/16W 1%

R433 SMD0603 30k TF 1/16W 1%

R434 SMD0603 4.7k TF 1/16W 1%

R435 SMD0603 3.6k TF 1/16W 1%

R436 SMD0603 22k TF 1/16W 1%

R437 SMD0603 1R0 TF 1/16W 1%



R440 SMD0603 120R BLM18SG121TN1D 0%

R441 SMD0603 10k TF 1/16W 1%


R452 SMD0603 100R TF 1/16W 1%






R466 SMD0603 100k TF 1/16W 1%

R467 SMD0603 120R BLM18SG121TN1D 0%

R468 SMD0603 100k TF 1/16W 1%

SERVO PCB PART LIST


RP401 SMD CAY16 100R TF 1/16W 5%

RP402 SMD CAY16 100R TF 1/16W 5%

RP403 SMD CAY16 100R TF 1/16W 5%

CAPACITORS C401 SMD0603 22n CP 25V 10%

C402 SMD0603 22n CP 25V 10%

C403 SMD0603 10n CP 25V 10%


C405 SMD0603 22n CP 25V 10%

C406 SMD0603 100n CP 25V 10%

C407 SMD0603 100n CP 25V 10%

C408 SMD0603 100n CP 25V 10%

C409 SMD0603 1n5 CP 50V 5%


C411 SMD0603 22n CP 25V 10%

C412 SMD0603 22n CP 25V 10%


C414 SMD0603 47n CP 25V 10%


C416 SMD0603 100n CP 25V 10%

C417 SMD0603 100n CP 25V 10%

C418 SMD0603 22n CP 25V 10%

C419 SMD0603 100n CP 25V 10%

C420 SMD0603 22n CP 25V 10%

C421 SMD0603 22n CP 25V 10%


C423 SMD0603 33pF CP 50V 5%

C425 SMD0603 100n CP 25V 10%

C426 SMD0603 100n CP 25V 10%

C427 CAPSMD6.3 100uF EL 10V 20%

C428 SMD0603 100n CP 25V 10%

C430 SMD0603 22n CP 25V 10%

C431 CAPSMD6.3 100uF EL 10V 20%

C432 SMD0603 1n5 CP 50V 5%

C434 SMD0603 1n5 CP 50V 5%

C435 SMD0603 1n5 CP 50V 5%

C437 SMD0603 1n5 CP 50V 5%

C438 SMD0603 1n5 CP 50V 5%


C446 SMD0603 33pF CP 50V 5%

C447 SMD0603 100n CP 25V 10%

C448 SMD0603 100n CP 25V 10%

Key: CP = ceramic plate. EL = electrolytic. PE = polyester. PP = polypropylene. BP = bi‐polar. CAPSMD6.3 refers to surface mount device with 6.3mm pitch pads SMD‐0805 refers to surface mount device size code 0805

DIODES D401 LED_5MM TSAL6200 Through Hole IR LED.

D402 LED_5MM TSAL6200 Through Hole IR LED.

D403 SOD‐123 1N4148W‐V‐GS08 small signal diode



SERVO PCB PART LIST



TRANSISTORS T401 SOT23 BC817‐25 Signal Transistor

T402 SOT23 PDTB113ZT Digital transistor

T403 SC‐74‐2 IMX17T110 Dual NPN transistor

INTEGRATED CIRCUITS IC401 LQFP80 SAA7826HL/M1AS/S5 PhonIC CD decoder

IC402 HSOP28 BA5984FP‐E2 5 channel motor driver

VOLTAGE REGULATORS VR401 SOT223 LM1117MPX‐3.3 SMD +3v3 regulator.

FILTERS, INDUCTORS & CRYSTALS X401 GSX‐751 8.4672MHz MP04546

CONNECTORS & SOCKETS

CON401 CONZIF24‐SM_0.5MM

046240024006800+ 24 way LIF connector

CON402 CON4‐JST‐SMS S4B‐PH‐SM4‐TB(LF)(SN)

4 way SIL header


3‐way SIL header


6‐way SIL header

CON405 CONZIF25 52271‐2579 25 way ZIF connector

SK401 SKT_SMB Not fitted

TP414 PAD6.0x6.2 S1951‐46R Spring terminal

TP415 PAD6.0x6.2 S1951‐46R Spring terminal

CIRCUIT DIAGRAMS


Circuit diagram index

The Cyrus CD Xt Signature circuit diagrams are listed below.

Main PCB Digital output and MC‐BUS .............................................. 25 Switching power supply and main PCB regulators........... 26 Master clock and data re‐formatting ............................... 27 Microcontroller ................................................................ 28 Servo PCB Decoder and sled drive..................................................... 29

GN

D1

VC

C2

INP

UT

3

TO

TX

401

TO

TX

179

DG

ND

C413

1u

16V

X7R

R405

160R

DG

ND

C401

47p

R403

150R

DG

ND

+5V

_S

W

C403

22n

DG

ND

SP

DIF

R406

47R

56

IC604C

74H

CT

14

13

12

IC604F

74H

CT

T14

98

IC604D

74H

CT

T14

1110

IC604E

74H

CT

T14

L402

CO

IL_750050480

D402

BA

S16

D401

BA

S16

MC

_IN

MC

_O

UT

C407

DN

F

C405

22p

C406

22p

DG

ND

+5V

CC

13

12

IC401F

74H

CT

14

R402

47k

56

IC401C

74H

CT

14

1110

IC401E

74H

CT

14

4

74H

CT

14D

GN

D

C409

1n

1 2

3

SK

402A

12H

P070H

SG

SK

402B

PH

ON

OD

UA

LG

ND

RP

402

1k

*4

R408

47k

+5V

CC

/CD

_S

TA

ND

BY

1

SK

401

T6612

R407

75R

C414

100pF

DG

ND

12

14 7

IC401A

74H

CT

14 9

8

IC401D

74H

CT

14

R401

47k

3

IC401B

+5V

CC

DG

ND

C404

22n

/ST

AN

DB

Y

ST

AN

DB

Y

MC

_B

US

_IN

MC

_B

US

_O

UT

RP

401

100R

*4

2 0

C416

1n

C415

100n

Digital output and MC-BUSMain PCB schematic diagram

25

V1

1

TRANS2

PDN 3

MCLK4

SD

AT

A5

BC

LK

6

WC

LK

7

FS

0/C

SN

/AK

MO

DE

8

FS

1/C

DT

I9

FS

2/C

CL

K10

FS

3/C

DT

O11

C1

12

ANS 13

BLS14

CKS015

CKS116

VDD17

GND18

TX

N19

TX

P20

DIF021

DIF122

DIF223

U1

24

Audio

Ser

ial

Inte

rfac

eP

resc

aler

Bip

has

eE

nco

der

CR

CG

ener

ator

Host

Ser

ial

Inte

rfac

e

Reg

iste

rM

UX

IC402

AK

4103

DG

ND

+5V

_S

W

C417

100n

+5V

_S

W

DG

ND

DG

ND

+5V

_S

W

IEC

958_W

CL

K

IEC

958_D

AT

A

IEC

958_B

CL

K

XC

LK

R404

150R

/ST

AN

DB

Y

CD Xt Signature service manual Issue 1© Cyrus Audio Ltd Aug 2014

AC

_L

IVE

AC

_N

EU

TR

AL

D501

DF

04S

14

23

L501

B82731M

2132A

030

EN

/UV

1

BP

/M2

D4 S 5

S 6

S 7

S 8

IC501

TN

Y377P

N

D502

P6K

E200A

D503

1N

4935

C509

1uF

/50V

R501

3.9

M

D506

SS

35

C505

1200uF

/16V

EE

UF

M1C

122L

B

L503

4.7

uH

C507

220uF

/16V

D505

SS

C54

C504

L502

4.7

uH

C506

100uF

/25V +

5V

CC

10V

D504

DA

3X

108K

0L

C508

1uF

/50V

EE

UF

C1H

1R

0

1 2

34

IC502

SF

H6206-2

R503

1k

RE

CT

IFIE

RE

MI

FIL

TE

RIN

PU

TC

APA

CIT

OR

CL

AM

PE

N/U

V R502

22k

BIA

S

DG

ND

DG

ND

C503

100p

Y1

CA

P

S

R504

39R

R505

120R

C510

100n

630V

R506

120R

C511

100n

C512

100n

C513

560p

C514

82p

R511

130R

R512

18R

EE

EF

PC

221X

AP

7440530047

7440530047

C516

MKP1840-M10n1kV

C501

10uF

/450V

C502

22uF

/400V

Pan

asonic

EE

Pan

asonic

EE

EE

UE

E2W

100

EE

UE

E2G

220

6 1

TX

501A

TR

AN

S_094931

43

TX

501B

TR

AN

S_094931

9 14

TX

501C

TR

AN

S_094931

7 12

TX

501D

TR

AN

S_094931

DG

ND

D507

TL

432

R507

560R

R508

10k

R509

10k

DG

ND

C517

100n

1200uF

16V

EE

UF

C1E

331

EE

EF

K1E

101X

P

DE

1E

3K

X101K

RE

PL

AC

EW

ITH

AP

PR

OV

ED

PAR

T

SA

FE

TY

CR

ITIC

AL

CO

MP

ON

EN

T

!!

I/P

O/P

G

VR

802

LM

1117M

P-3

.3

DG

ND

+5V

CC

C828

22n

C8

29

22

nC

83

022uF

/16V

3v3_uP

RO

C

Switching power supply & main PCB regulators

CD Xt Signature service manual Issue 1© Cyrus Audio Ltd Aug 2014

Main PCB schematic diagram

C808

22n

D803

6V

8C

80

72

2n

C8

23

22uF

/16V

DG

ND

DG

ND

HS

R802

10k

T8

03

TIP

31

D8

05

1S

R154-4

00

10V

DG

ND

DG

ND

R813

47k

ST

AN

DB

Y

R814

100k

T8

01

AIM

Z1A

T801B

IMZ

1A

T805

DR

C2113Z

C8

02

2200uF

/10V

+5V

_M

OT

OR

DG

ND

26

FS

801

FR

OM

MA

INS

123

CO

N803

CO

NH

EA

DE

R3

AC

_L

IVE

AC

_N

EU

TR

AL

Fuse

Rat

ing

230V

acT

1A

L

CON801

2.8MMQUICKCONNECT

CON802

2.8MMQUICKCONNECT

53

4RL

Y801A

RE

LA

Y_G

5N

B

C820

100nXCAP

22

66

RL

Y801B

RE

LA

Y_G

5N

B

+5V

CC

DG

ND

T804

DR

C2113Z

D8

06

BA

S16

/ST

AN

DB

Y

12

CO

N805

CO

NH

EA

DE

R2

Q803

MO

UN

TH

OL

E1

Q801

MO

UN

TH

OL

E1

Q802

MO

UN

TH

OL

E1

C819

22n

DG

NDC

818

22n

DG

ND

R811

330R

was

2.2

nY

1C

AP

DE

1E

3K

X222K

(

(

1 2 3

4 5 6

CO

N804

CO

NP

OW

ER

6

LV

B1

LV

B2

C803

100n

C8

04

10

0n

C8

05

10

0n

HV

B1

HV

B2C

TH

1

D804

DF

04S

C8

09

22

n

C8

10

22

n

C8

06

22

n

C8

13

22

n

LV

B1

LV

B2

DG

ND

C824

4700uF

/16V

DG

ND

I/P

O/P

G

VR

801

LM

1117A

R8

05

33

0R

R8

04

11

0R

C8

26

22uF

/16V

C811

22n

C8

14

22

n

C8

12

22

nC

82

522uF

/16V

DG

ND

DG

ND

DG

ND+

LV

B

!!

+5V

CC

_P

LL

DG

ND

CA

UT

ION

HIG

H

PA

RT

SV

OL

TA

GE

PC

Pout

1

PC

1out

2

COMPin3

VCOout4

INH 5C1a6

C1b7

GND 8

VCOin 9

DE

Mout

10

R1

11

R2

12

PC

2out

13

SIGin14

PC

3out

15

Vcc 16

IC605

74H

C4046

XC

LK

/8

XC

LK

DG

ND

+5V

CC

_P

LL

C610

1n

DG

ND

P3

6P

25

P1

4P

03

PE

9

CE

P7

CE

T10

CP

2

TC

15

MR

1

Q0

14

Q1

13

Q2

12

Q3

11

VCC16 GND 8

IC606

74H

C161

+5V

_S

W C605

22n

DG

ND

DG

ND

XC

LK

/8

XC

LK

=16.9

344M

Hz(

384fs

)

XC

LK

/8=

2.1

168M

Hz(

48fs

)

L602

1uH

R609

91R

R610

C611

100uF

/6.3

V

DG

ND

C607

22n

+5V

CC

_P

LL

DG

ND

C612

22uF

/16V

C606

22n

BC

LK

Vco

ntr

ol

1

Enab

le2

GND 3

Outp

ut

4

n.c

5

Vcc6

XT

AL

601

33.8

688M

Hz

/ST

AN

DB

Y

R602

47k

+5V

CC

_P

LL

120R

R605

100R

R606

100R

R607

100R

12

14 7

IC604A

74H

CT

14

34

IC604B

74H

CT

14

+5V

_S

WC

608

22n

DG

ND

DG

ND

CL

K3

PRE4 CLR 1

D2

Q5

Q6

VD

D14

IC603A

74H

C74

CL

K11

PRE10 CLR 13

D12

Q9

Q8

GN

D7

IC603B

74H

C74

+5V

_S

W

C603

22n

DG

ND

DG

ND

/BC

LK

BC

LK

/WC

LK

LE

FT

JUS

T_W

CL

K

+5V

_S

W+

5V

_S

W

+5V

_S

W

/WC

LK

WC

LK

RP

609A

100R

*4

RP

609B

100R

*4

RP

609C

100R

*4

RP

609D

100R

*4

R611

0R

DG

ND

1 23

14 7

IC601A

74H

CT

86

9

10

8

IC601C

74H

CT

86

4 56

IC601B

74H

CT

86

12

13

11

IC601D

74H

CT

86

DG

ND

PH

AS

E

DA

TA

_C

D

WC

LK

_C

D

SC

LK

_C

D

RP

601

100R

*4

D0

2Q

019

D1

3Q

118

D2

4Q

217

D3

5Q

316

D4

6Q

415

D5

7Q

514

D6

8Q

613

D7

9Q

712

OE

1

CP

11

GND 10VCC20

IC602

74H

C574

RP

605

100k

*4

DG

ND

XC

LK

+5V

_S

W

+5

V_

SW

C601

22n

DG

ND

C602

22n

DG

ND

DG

ND

CD

_S

PD

IF

DG

ND

BC

LK

R613

47k

DG

ND

DG

ND

RP

603

47R

*4

IEC

958_B

CL

K

IEC

958_D

AT

A

IEC

958_W

CL

KL

EF

TJU

ST

_W

CL

K

WC

LK

DA

C_W

CL

K

PH

AS

Ed

ata

inversio

n:

0=

norm

al

1=

In

verte

d

Master clock and data reformattingMain PCB schematic diagram

27 CD Xt Signature service manual Issue 1© Cyrus Audio Ltd Aug 2014

DG

ND

+5

VC

CV

AD

C

To

Fron

tP

an

el

PC

B

KE

YS

_IN

1

LE

D_R

ED

LE

D_G

RN

+V

BA

CK

LIG

HT

RC

5_IN

DIS

P_S

CL

KD

ISP

_D

AT

A

CO

N704

12

Way

LIF

Sid

eE

ntr

y1.2

5m

mP

it

LC

D_/C

SL

CD

_A

0

R715

100k

C7

17

15

p

C7

16

15

pD

GN

D

T706

BC

807

R7

12

5R

6

R7

18

10

k

R7

03

1k

C7

18

10

0n +V

BA

CK

LIG

HT

BA

CK

LIG

HT

_O

N10V

DG

ND

T705

DR

A211

4Y

T7

04

DR

A2

11

4Y

+5V

CC

+5

VC

C

GR

N_

LE

D_

ON

RE

D_

LE

D_

ON

LE

D_G

RN

LE

D_R

ED

100m

A

T707

MJD

32C

R7

11

10

RC

71

21

u1

6V

X7

R

3v3_uP

RO

C

DG

ND

C704

22n

3v3_uP

RO

C

DG

ND

C705

22n

3v3_uP

RO

C

DG

ND

PIN

67

PIN

56

PIN

42C

706

22n

3v3_uP

RO

C

DG

ND

/uP

RO

C_R

ES

ET

CD

_C

L

CD

_D

A

C711

22n

RC

5_IN

LC

D_A

0

LC

D_

/CS

CD

_D

ISC

_D

ET

EC

T1

CD

_T

RA

Y+

CD

_T

RA

Y-

/MU

TE

KE

YS

_IN

1

CD

TX

T_D

AT

CD

TX

T_C

LK

CD

TX

T_R

DY

BA

CK

LIG

HT

_O

N

R705

47k

/RE

SE

T_O

UT

RE

D_L

ED

_O

N

GR

N_

LE

D_

ON

JTA

G_

TC

LK

R706

47k

3v3_uP

RO

C

DIS

P_D

AT

A

CD

_D

ISC

_D

ET

EC

T2

JTA

G_

TR

ST

VA

DC

TD

O/S

WO

1

TD

I2

TM

S/S

WD

IO3

TR

ST

4

TC

K/S

WD

CL

K5

P0(2

6)/

AD

0(3

)/R

XD

36

P0(2

5)/

AD

0(2

)/I2

SR

X_S

DA

/TX

D3

7

Vdd(a

)8

Vss

(a)

9

VR

EF

P10

RS

TO

UT

11

VR

EF

N12

RT

CX

113

RE

SE

T14

RT

CX

215

VB

AT

16

P1(3

1)/

SC

K1/A

D0(5

)17

P1(3

0)/

Vbus/

AD

0(4

)18

XT

AL

119

XT

AL

220

Vdd(3v3) 21

P0(29)/USB_D+ 22

P0(30)/USB_D- 23

Vss 24

P1(18)/USB_UP_LED/PWM1(1)/CAP1(0) 25

P1(19)/MCOA0/USB_PPWR/CAP1(1) 26

P1(20)/MCI0/PWM1(2)/SCK0 27

P1(22)/MCOB0/USB_PWRD/MAT1(0) 28

P1(23)/MCOB0/USB_PWRD/MAT1(0) 29

P1(24)/MCI2/PWM1(5)/MOSI0 30

P1(25)/MCOA1/MAT1(1) 31

P1(26)/MCOB1/PWM1(6)/CAP0(0) 32

Vss 33

Vdd(reg3v3) 34

P1(28)/MCOA2/PCAP1(0)/MAT0(0) 35

P1(29)/MCOB2/PCAP1(1)/MAT0(1) 36

P0(0)/RD1/TXD3/SDA1 37

P0(1)/TD1/RXD3/SCL1 38

P0(10)/TXD2/SDA2/MAT3(0) 39

P0(11)/RXD2/SCL2/MAT3(1) 40

P2(1

0)/

EIN

T0/N

MI

41

Vdd(3

v3)

42

Vss

43

P0(2

2)/

RT

S1/T

D1

44

P0(1

8)/

DC

D1/M

OS

I0/M

OS

I45

P0(1

7)/

CT

S1/M

ISO

0/M

ISO

46

P0(1

5)/

TX

D1/S

CK

0/S

CK

47

P0(1

6)/

RX

D1/S

SE

L0/S

SE

L48

P2(9

)/U

SB

_C

ON

NE

CT

/RX

D2

49

P2(8

)/T

D2/T

XD

250

P2(7

)/R

D2/R

TS

151

P2(6

)/P

CA

P1(0

)/R

I1/T

RA

CE

CL

K52

P2(5

)/P

WM

1(6

)/D

TR

1/T

RA

CE

DA

TA

(0)

53

P2(4

)/P

WM

1(5

)/D

SR

1/T

RA

CE

DA

TA

(1)

54

P2(3

)/P

WM

1(4

)/D

CD

1/T

RA

CE

DA

TA

(2)

55

Vdd(3

v3)

56

Vss

57

P2(2

)/P

WM

1(3

)/C

TS

1/T

RA

CE

DA

TA

(3)

58

P2(1

)/P

WM

1(2

)/R

XD

159

P2(0

)/P

WM

1(1

)/T

XD

160

P0(9)/I2STX_SDA/MOSI1/MAT2(3)61

P0(8)/I2STX_WS/MISO1/MAT2(2)62

P0(7)/I2STX_CLK/SCK1/MAT2(1)63

P0(6)/I2SRX_SDA/SSEL1/MAT2(0)64

P4(28)/RX_MCLK/MAT2(0)/TXD365

Vss66

Vdd(reg3v3)67

P4(29)/TX_MCLK/MAT2(1)/RXD368

P1(15)/ENET_REF_CLK69

P1(14)/ENET_RX_ER70

P1(10)/ENET_RXD171

P1(9)/ENET_RXD072

P1(8)/ENET_CRS73

P1(4)/ENET_TX_EN74

P1(1)/ENET_TXD175

P1(0)/ENET_TXD076

Vdd(3v3)77

Vss78

P0(2)/TXD0/AD0(7)79

P0(3)/RXD0/AD0(6)80

IC701

LP

C1752F

BD

80

ISP

_M

OD

E_

SE

T

UA

RT

0_T

X

UA

RT

0_

RX

JTA

G_

TM

S

JTA

G_

TD

I

JTA

G_

TD

O

SK

701

651005136421

R7

16

47

R

R7

17

47

R

VB

US

D-

D+

GN

D

DG

ND

VB

US

R714

1k5

Wurt

h

R713

1R

0

VB

US

D701

KM

-23H

D

3v3_uP

RO

C

DIS

P_S

CL

K

RP

705

100R

*4

RP

70

41

0k

*4

3v3_uP

RO

C

3v3_uP

RO

C

DG

ND

R707

47k

SW

70

2

SW

_T

AC

AL

PS

DG

ND

3v3_uP

RO

C

3v3_uP

RO

C

DG

ND

DG

ND

3v3_uP

RO

C

DG

ND

3v3_uP

RO

C

3v3_uP

RO

C

DG

ND

PIN

34

3v3_uP

RO

C

DG

ND

PIN

8C707

22n

3v3_uP

RO

C

DG

ND

3v3_uP

RO

C

DG

ND

3v3_uP

RO

C

DG

ND

C708

22n

PIN

77

C713

100n

DG

ND

X701

12.0

00M

/CD

_S

TA

ND

BY

VE

RS

ION

PH

AS

E

/RE

SE

T_

MA

IN

CO

N701

CO

NL

IF25

+5V

CC

DG

ND

CD

_S

PD

IF

CD

_T

RA

Y+

CD

_T

RA

Y-

IN_S

W/C

D_S

TA

ND

BY

/RE

SE

T_

OU

TC

D_

DA

CD

_C

L

CD

_D

ISC

_D

ET

EC

T1

CD

_D

ISC

_D

ET

EC

T2

CD

TX

T_

CL

KC

DT

XT

_D

AT

CD

TX

T_R

DY

SC

LK

_C

DW

CL

K_C

DD

AT

A_C

D

LE

D_

ON

Connec

tion

toC

Dsu

bP

CB

C701

100n

DG

ND

G

DS

FE

T701

IRL

ML

6401P

bF

R7

01

1k

T7

01

DR

C2

11

3Z

DG

ND

R704

BM

L18E

G121S

N1D

CP

70

11

0n

*4

CP

70

21

00

p*4

C7

09

22

nC

71

02

2n

T7

02

DR

C2

11

3Z

R7

19

0R

DG

ND

Ver

sio

n

CD

_P

OW

ER

_O

N

R708

47k

3v3_uP

RO

C

IN_S

W

RP

701

100R

*4

+5V

_M

OT

OR

C702

100n

DG

ND

LE

D_O

N

CD

_P

OW

ER

_O

N

MC

_B

US

_IN

MC

_B

US

_O

UT

G

DS

FE

T702

IRL

ML

6401P

bF R

70

2

1k

DG

ND

CD

_P

OW

ER

_O

N

T703

DR

C2143T

+5V

_S

W CP

703

100p

*4

CP

70

4

100p

*4

DG

ND

C703

100p

DG

ND

3v3_uP

RO

C

C714

100n

DG

ND

MicrocontrollerMain PCB schematic diagram

28 CD Xt Signature service manual Issue 1© Cyrus Audio Ltd Aug 2014

Vdda1

7

Vdda2

16

Vssa15

Vssa217

Vre

fo8

Iref

6

D19

D210

D311

D412

R113

R214

Vssa320

OS

CO

UT

18

OS

CIN

19

Vddd1 41

DA

CR

N23

DA

CL

P26

DA

CV

+27

DA

CR

P22

DA

CL

N25

DA

CV

ref

24

CS

LIC

E15

TE

ST

176

CL

16

49

DA

TA

46

WC

LK

47

SC

LK

48

EF

45

TE

ST

277

LKILL 34

Vssd1 40

V2 72

WC

LK

IN43

DA

TA

IN42

SC

LK

IN44

RE

SE

T51

SD

A52

SC

L53

RA

B54

SIL

D55

ST

AT

US

56

TE

ST

378

RC

K57

SU

B58

SF

SY

59

SB

SY

60

CL

4/1

250

Vssd2 61

DO

BM

62

Vddd3 70

CF

LG

39

RA

64

FO

65

SL

66

Vddd2 63

Vssd3 69

MO

TO

167

MO

TO

268

V4 74

V5 75

V1 71

LA

SE

R80

DC

OF

FS

ET

CO

MP

VO

LT

AG

EB

UF

FE

R

HF

&L

FC

AP

TU

RE

AN

TI

AL

IAS

CO

NT

RO

LF

UN

CT

ION

OU

TP

UT

ST

AG

ES

MIC

RO

INT

ER

FA

CE

CO

NT

RO

LPA

RT

MO

TO

RC

ON

TR

OL

ER

RO

RC

OR

RE

CT

OR

FL

AG

S

GE

N

BIA

S

TE

ST

TIM

ING

DE

CO

DE

R

MIC

RO

-

CO

NT

RO

LL

ER

INT

ER

FA

CE

DIG

ITA

L

PL

L

EF

M

DE

MO

DU

LA

TO

R

SR

AM

RA

M

AD

DR

ES

SE

R

SU

BC

OD

E

PR

OC

ES

SO

R

AU

DIO

PR

OC

ES

SO

R

EB

U

INT

ER

FA

CE

SE

RIA

L

DA

TA

INT

ER

FA

CE

SE

RIA

L

DA

TA

INT

ER

FA

CE

(LO

OP

BA

CK

)

PE

AK

DE

TE

CT

BIT

ST

RE

AM

DA

C

KIL

L

VE

RS

AT

ILE

PIN

SIN

TE

RFA

CE

RKILL 35

V3 73

DA

CG

ND

21

BU

FO

UT

R30

BU

FO

UT

L31

BU

FIN

R29

BU

FIN

L32

HE

AD

PH

ON

E

BUFGND 33

BUFV+ 28

TE

ST

479

CD

TE

XT

CD

TR

DY

36

CD

TD

AT

37

CD

TC

LK

38

DA

TA

SL

ICE

R

TH

RE

SH

OL

D

CO

NT

RO

L

HP

FIL

TE

R

DIS

CA

DC

D1

- D

4S

UM

MONITOR3

SENSE4

EXFILTER2

LPOWER1

IC401

SA

A7826

D1

D2

D3

D4

S1

S2

VC

OM

RF

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UF

F

CO

N401

CO

NL

IF24

FO

CU

S+

FO

CU

S-

RA

DIA

L+

RA

DIA

L-

SF

-HD

850

OP

Uas

sem

bly

F-

F+

T+

T-

C D CD

/DV

DS

WR

FA B F G

ND

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Vc(

Vre

f)V

ccE n.c

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R-C

DV

R-D

VD

CD

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MD

HF

Mn.c

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VD

-LD

GN

D-L

D

+5

V_

CD

C401

22n

HF

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ND

HF

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ND

San

yo

SF

-HD

850

det

ecto

rar

rangem

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CD

BA

E F

FE

=(A

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(B+

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When

FE

min

us,

dis

cis

close

rth

anfo

cus

poin

t

EQ

SE

L0:

n=

11:

n=

2x:

n=

4

CD

RW

GA

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1=

4

R405

100R

R4

06

10

0R

LD

MO

N

LD

MO

N

R410

24k

C4

09

1n

5C

0G

C4

02

22

n

2.1

V

C425

100n

HF

IN'E

YE

PA

TT

ER

N'

0.6

5us

R466

100k

C4

46

33

pF

I2C

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CL

K

I2C

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AT

A

DG

ND3

v3_C

D

RA

FO

SL

MO

TO

1

MO

TO

2

ToDriverCircuitsSheet2

C403

10n

HF

_G

ND

R452

100R

C4

41

DN

F

DG

ND

DO

BM

CF

LG

R451

DN

F

R424

DN

F

3v3_C

D

1

2

3

4

5

SK

401

DN

F DG

ND

RP

401

100R

*4

SC

LK

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UT

WC

LK

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DA

TA

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EF

ST

401

ST

AR

2

HF

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ND

DG

ND

HO

ME

SW

ITC

H

ST

AT

US

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SE

T_O

UT

R459

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F

3v3_C

D

CL

16

CL

12

HF

_G

ND

C414

47n

3v3_H

F

RP

402

100R

*4

DG

ND

C415

22uF

/16V

HF

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ND

3v3_H

F

3v3_C

DD

GN

D

3v3_C

D

DG

ND

C411

22n

C4

12

22

n

C4

07

10

0n

C4

06

10

0n

C4

08

10

0n

C4

10

22

uF

/16

V

HF

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ND

CD

T_R

DY

CD

T_D

AT

CD

T_C

LK

DG

ND

R403

10R

R4

04

10

R

1v8_C

D

R407

10k

3v3_C

D

3v3_C

D T401

BC

817

R4

01

22

0R

R4

02

75

0R

DG

ND

1v8_C

D

C405

22n

HF

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ND

C413

22uF

/16V

VC

OM

DG

ND

BIA

S

C416

100n

Moto

rdri

ver

Bia

s

TP

401

D1_1

TP

40

2D

1_

2

TP

40

3D

2_

1T

P4

04

D2

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TP

40

5D

3_

1T

P4

06

D3

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TP

40

7D

4_

1T

P4

08

D4

_2

TP

40

9

VR

EF

C417

100n

DG

ND

TP

410

RF

BU

FF

TP

412

S1

TP

413

S2

RA

SL

R436

22k

R4

33

30

k

R4

21

22

k

FO

+5V

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OR

C430

22n

C4

31

10

0u

F/1

0V

MO

TO

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ND

BIA

S

MO

TO

R-

MO

TO

R+

RA

DIA

L-

RA

DIA

L+

FO

CU

S+

FO

CU

S-

SL

ED

-

SL

ED

+

TR

AY

-

TR

AY

+

MO

TO

_G

ND

MO

TO

_G

ND

/ST

AN

DB

Y

FWD 1

OPIN1+ 2

OPIN1- 3

OPOUT1 4

OPIN2+ 5

OPIN2- 6

OPOUT2 7

Vcc 8

LO- 9

LO+ 10

VO2- 11

VO2+ 12

VO1- 13

VO1+ 14VO4+15

VO4-16

VO3+17

VO3-18

GND19

BIAS20

MUTE21

OPOUT322

OPIN3-23

OPIN3+24

OPOUT425

GND G1GNDG2

OPIN4-26

OPIN4+27

REV28

IC402

BA

5984F

P

R4

37

1R

0

R4

32

1R

0

R4

11

22

k

MO

TO

1

MO

TO

2R

422

22k

R4

20

4.7

kC

43

71

n5

C0

G

R4

18

4.7

kC

43

51

n5

C0

G

R4

17

4.7

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43

41

n5

C0

G

TR

AY

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ON

TR

OL

+

TR

AY

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ON

TR

OL

-

R415

4.7

kC

43

81

n5

C0

G

R4

14

3.6

kC

43

21

n5

C0

G

BIA

S

BIA

SR

435

3.6

k

BIA

SR

434

4.7

k

BIA

SR

412

3.6

k

MO

TO

_G

ND

DG

ND

ST

402

ST

AR

2

I/P

O/P

G

VR

401

LM

1117M

PX

-3.3

DG

ND

+5V

_C

D3v3_H

F

C420

22n

C42

12

2n

C4

22

22

uF

/16

V

R4

19

BM

L1

8E

G1

21

SN

1D

3v3_C

D

CO

N403

SIL

_3W

CO

N4

02

SIL

_4

W

CO

N4

04

SIL

_6

W

SL

ED

+S

LE

D-

IN_S

W

DG

ND

DG

ND

LE

D1

LE

D2

TR

AY

-T

RA

Y+

HO

ME

SW

ITC

H

DG

ND

MO

TO

R+

MO

TO

R-

CO

N405

CO

NL

IF25

+5V

_C

D

DG

ND

DO

BM

TR

AY

_C

ON

TR

OL

+T

RA

Y_

CO

NT

RO

L-

IN_S

W/S

TA

ND

BY

/RE

SE

T_O

UT

I2C

_D

AT

AI2

C_S

CL

K

LE

D_D

ET

EC

T1

LE

D_

DE

TE

CT

2

CD

T_

CL

KC

DT

_D

AT

CD

T_R

DY

SC

LK

_O

UT

WC

LK

_O

UT

DA

TA

_O

UT

LE

D_

ON

3v3_L

ED

LE

D_O

N

R409

100k

R4

08

47

R

T4

02

DT

B11

3Z

D4

01

TS

AL

62

00

D4

02

TS

AL

62

00

DG

ND

V_L

ED

DG

NDR413

30k

R4

16

30

k

3v3_L

ED

LE

D1

Yel

low

Red

R425

10k

R4

26

10

0R

R4

27

2k2 T4

03

A

IMX

1

T403B

IMX

1

V_L

ED

DG

ND

D403

1N

4148

D4

04

1N

41

48

R4

28

4.7

k LE

D_D

ET

EC

T1

3v3_L

ED

LE

D2

R429

10k

R4

30

10

k

D4

05

1N

41

48

D40

6

1N

41

48

R4

31

4.7

k

V_L

ED

DG

ND

3v3_L

ED

V_L

ED

LE

D_D

ET

EC

T2

C404

22uF

/16V

R4

40

BM

L1

8E

G1

21

SN

1D

C4

18

22

n

HF

_G

ND

C419

100n

R4

39

DN

F

R438

DN

F

DG

ND

3v3_C

D

R423

1R

0

X4

01

8.4

67

2M

Hz

GS

X-3

33

DG

ND

C423

33pF

R4

41

10

k+

5V

_C

D

C426

100n

MO

TO

_G

ND

DG

ND

R460

DN

F

R461

DN

F

R462

DN

F

R463

DN

F

FO

_T

ES

T

RA

_T

ES

T

MO

1_

TE

ST

MO

2_

TE

ST

C427

100uF

/10V

DG

ND

C428

100n

RP

40

3

10

0R

*4

3v3_C

D

R467

BM

L18E

G121S

N1D

+5V

_M

OT

OR

R468

100k

3v3_C

D

3v3_L

ED

TP

414

S7051-4

2R

TP

41

5

S7

05

1-4

2R

Spri

ng

Ter

mH

arw

in

C447

100n

C4

48

10

0n

DG

ND

Decoder and sled drive

CDXt Signature service manual Issue 1© Cyrus Audio Ltd Aug 2014

Servo PCB schematic diagram

29

CYRUS CD Xt Signature CD PLAYER - Cyrus Audio

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