R O M

Service ManualStereo Integrated Amplifier

SPECIFICATIONS(DIN 45 500) MAIN AMP. SECTION(POWER AMP. DIRECT Input)20 Hz 20 kHz continuous power output

both channels driven1 kHz continuous power output

both channels driven (THD: 1%)63 H ~ 12.5 kHz continuous power output

both channels driven (THD: 0.7%)

2x65 W (8 )2X90 W (4 )

2 x 60 W (8 oM)2 80 W (4 )

Total harmonic distortion (Power Amp Direct Input)rated power at 20 Hz~20 kHz 0.007% (8 )half power at 20 Hz ~ 20 kHz 0.005% (8 )

Intermodulation distortion (SO Hz: 7 kHz = 4:1. SMPTE)rated power 0.007 % (8 )

Residual hum and noise 0.2 mVDamping factor 60 (8 ). 30 (4 )Headphones output level and Impedance 540 mV/330 Load Impedance

A or B, BIWIRING 416Aand B 816

PRE AMP. SECTIONand impedanceInput sensitivity a

PHONO MM 25 mV/47 kPHONO MC 170 V/220 TUNER, CD, AUX, TAPE 1, TAPE 2/DAT 150 mV/22 kPOWER AMP DIRECT 1 V/18 k

Phono maximum Input voltage (1 kHz, RMS)MM 160 mV. IMF' 66MC 12 mV. IMF' 66

Amplifier

SUVX500

CountryCode

(E)

(EB)

(EG)

(GC)

(GN)

Area

Continental Europe

Great Britain

F.R. Germany and Italy

Asia. Latin America.Middle Near East andAfrica

Oceania

Color

(K)

S/N (rated power, 4 )PHONO MM 78 dB (85 dB. IMF' 66)PHONO MC 66 dB (S = 250 V. 67 dB, IHF` 66)

97 dB (99 dB. IHF'66)106 dB (115 dB, IHF '661POWER AMP DIRECT

S/N at ~ 26 dB power (4 )PHONO MM 76 dBPHONO MC 66 dBTUNER, CD, AUX, TAPE 1, TAPE 2/DAT 84 dB

SIN at 50 mW power (4 )PHONO MM 75 dBPHONO MC 66 dBTUNER, CD, AUX, TAPE 1, TAPE 2/DAT 78 dB

Frequency responsePHONO MM RIAA standard curve

0.8 dB (30 Hz~15 kHz)TUNER, CD, AUX. TAPE 1, TAPE 2/DAT

3Hz100kHz(+0, 3dB)+0 dB, 0.2 dB (20 Hz~20 kHz)

POWER AMP DIRECT 2 Hz~120 kHz (+0, 3 dB)+0 dB. 0.2 dB (20 Hz~20 kHz)

Tone controlsBASS 50HZ, +10 dB, 10dBTREBLE 20kHz +10 dB, 10 dB

Loudness control (volume at 30 dB) 50 Hz. +9 dBOutput voltage

TAPE 1, TAPE 2/DAT REC OUT 150 mV

Technics

2 x 50 W (8 )

Color

Areas

(K) Black Type

micro

SU-VX500

GENERALPower consumption 530 WPower supply

for Great Britain and OceaniaF.R. Germany, Italy and Continental Europe:

AC 50/60 Hz. 230/240 Vfor Others: AC 50760 Hz. 110 V/127 V/220 V/240 V

CONTENTS

Dimension. (W x H x D) 430x 125x316 mm(16-15/16" x4-15/16"x 12-7/16")

Weight 8,1 kg (17.82 Ib.)Notes:1. Specifications are subject to change without notice.

Weight and dimensions are approximate.2. Total harmonic distortion is measured by the digital spectrum

analyzer.

Page PageBEFORE REPAIR AND ADJUSTMENT 2 PRINTED CIRCUIT BOARDS 15-18PROTECTION CIRCUITRY 2 WIRING CONNECTION DIAGRAM 19ACCESSORY 2 BLOCK DIAGRAM 20LOCATION OF CONTROLS 3 MEASUREMENTS AND ADJUSTMENTS 21CONNECTIONS 4-6 REPLACEMENT PARTS LIST 22-24,27DISASSEMBLY INSTRUCTIONS 7-10 CABINET PARTS LOCATION 25 25SCHEMATIC DIAGRAM 11-14 PACKAGING ' 28

I BEFORE REPAIR AND ADJUSTMENT(1) Tum off the power supply. Using a. 10oM, 10 W resistor, shortcircuit both ends of power supply capacitors C001, C002. C705

and C706 in order to discharge the voltage.(2) Before turning on the power switch of the unit,

A. Connect the voltage controller to the primary side.B. Connect the AC ampere meter to the primary side or conned the DC voltage meter to the "B" circuit of the secondary

side.C. Turn the VR of ICQ (VR451, VR452. VR501 and VH502) to minimum (counterclockwise).D. Alter setting the output to zero of the voltage controller, turn on the power switch of the unit.

And increase the output of voltage controller gradually.Then, check carefully whether the current value of primary side become more than following value or whether the DCvoltage of secondary side is increasing slowly.

E. II the value of current is increasing unusually or the DC voltage is not increasing, lower the output level of voltagecontroller Immediately.

The current value of the primary side at no signal. (Confirm the power supply voltage ot each area and provided voltage ofthe unit.)

Power supply voltage

Consumed current 50 Hz

AC 1 1 0 V

250-540 mA

AC 120V

210-500 mA

AC 220V

90-370 mA

AC 230 V

80-360 mA

AC 240 V

70-350 mA

I PROTECTION CIRCUITRYThe protection circuitry of the amplifier may have operated if either ofthe following conditions is noticed:No sound Is heard when the power is turned on.Sound stops during a performance.The function of this circuitry is to prevent circuitry damage if, forexample, the positive and negative speaker connection wires are"shorted", or if speaker systems with an impedance less than theindicated rated Impedance of the amplifier are used.

It this occurs, follow the procedure outlined below:1. Turn off the power.2. Determine the cause of the problem and correct it.3. Turn on the power once again.

Note:When the protection circuitry functions, the unit will not operateunless the power is first turned off and then on again.

I ACCESSORYAC power supply cords

For (E), (EG) areas. For (EB) area only. For (GC) area only. For (GN) area only.

-2-

PRINTED CIRCUIT BOARD DIAGRAM

SU-VX500 SU-VX500

PHONO PC.B.

PHONO SELECTOR

OPERATION PC.B.

5 6 7 8 9

PHONO SELECTOR

OPERATION PC.B.

111098

INPUT SELECTOR P.C.B.

SU-VX500 SU-VX500

13 14 15 16 17

V-AMP PC.B

POWER SWITCH PC.B. For[E.EB, EG.GN) areas.

VOLTAGE ADJ

AC IN / VOLTAGE ADJ. PC. B. For[E, EB, EG.GN]areas

SU-VX500

17 18 19 20 21 22

V-AMP PC.B

Power Source For (GC] area.

Anod

Cthode

CathodeCa

P300DLF

Anode

Cathode

C Cathode

MA4033MTAMA4036MTA

Anode

A

CaCathode

2SA1535AQRS2SC3944AQRS

2SA1309AQSTA2SC3311AQSTA

UPC4570CAN7062N

8 Pin18 Pin

SVI3205A

REPLACEMENT PARTS LISTNotes : * Important safety notice:

Components identified by A mark have special characteristics important for safety.When replacing any of thesecomponents use only manufacturer ' s specified parts.

* The parenthesited indications in the Rearks columns specify the areas. (Refer to the cover page for area.)Parts without these indications can be used for a l l areas.

Ref.Na

IC101IC301IC401IC501

Q101104101, 402

Q451. 452Q453, 4540455. 456Q457. 4580459, 4600461, 4620463, 464Q465, 4660501503Q751Q752Q753, 754Q755

D101. 102D401. 402D403, 404D405, 406D451M53456D501503D503D504D601D6020603,604D605D702705D751

VR201

Part No.

UPC4570CUPC4570CAN7062NSVI3205A

2SK170BLTPE22SA1123RSA2SC2631RSA2SC3311AQ2SA1309AR2SC2631RSA2SA1123RSA2SC3944AQRS2SA1535AQRS2SC1685RST2SA992EFPTA2SD2037DEFTA2SB1357DEFTA2SK301PQTA2SA1309AR

MA165MA167MA4036MTAMA165MA29WAMA165MA165MA4160MMA4160M1SR35200TBLN014304PLN018304PMA4033TAP300DLFMA4180M

RRV16J02A

Part Name & Description

NTEGRATED CIRCUIT (S)

.C.PHONO/EQ.AMP.

. C, TONE AMP.

. C, VOLTAGE AMP.

. C, POWER AMP.

TRANSISTOR(S)

TRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTORTRANSISTOR

DIODE (S)

DIODEDIODEDIODEDIODEDIODEDIODEDIODEDIODEDIODEDIODEL.E.D.L D .DIODEDIODEDIODE

VARIABLE RESISTOR(S)

V.R. VOLUME CONTROL

Remarks

A

Ref.Na

VR202VR301, 302VR451. 452

TH201, 202

LIL101. 102L501504L551

TlTl

FlFlF2

SIS2S2S101S102S103S201S202S203S501

CN101CN102CN103. 104CN105107CN201

Part No.

EVJ02QFA2G15EVJYA1FA2C15EVNDXAAOOB52

RTD2ZHL104T

SLQZ650MH49SLM1Z33SLQY18G10ELEPK2R2MA

RTP1N5E011RTP1N5E012

XBA2C25TBOXBA2C50TBOXBA2C25TBO

ESB8249VESD26200AESE37263RSR6B002JRSS6D001RSS2D006AESB68107ESB68132RSP2DX8ARSR4B004A

RJU003K010URJU003K008M1RJT060B05RJU057W007RJU003K010M1

Part Name & Description

V. R, BALANCEV. R. BASS/TREBLE CONT.V. R. ICQ ADJ. (VAMP. )

THERMISTOR(S)

THERMISTOR

COIL(S)

COILCOILCOILCOIL

TRANSFORMER(S)

POWER TRANSFORMERPtWER TRANSFORMER

FUSE(S)

FUSE. 250V T2. 5AFUSE. 250V T5AFUSE, 250V T2. 5A

SWITCH(ES)

S. POWERSW, VOLTAGE SELECTORSW, VOLTAGE SaECTORS, INPUT SELECTORS, REC SELECTORSt. PHONO SELECTORSW.MODESW. LOUDNESS/TONESW. POWER AMP DIRECTSW, SPFJiKER SELECTOR

CONNECTOR(S)

SOCKET(IOP)SOCKET(8P)CONNECTOR(5P)SOCKETS)SOCKET (10P)

Reaarks

(E.EB.EG,GN)

(E.EB,EG,GN)(GC)

(E.EB,EG,GN)(GC)(GC)

(F,EB,EG.GN)(GC)

Ref.No.

CN202CN401. 402CN403CN404CN501CN601CN701CN702ACN702BCP101CP102CP103, 104CP105107CP201CP202CP401, 402CP403CP404CP501CP601

Part No.

SJS50382JQHRJT060B05RJT060B07RJU003K010M1RJU057TO04RJU003K008M1RJP1A3303RJS1A1703RJS1A1704RJT003KD10M1RJT003KD08M1RJU060G05TRJT057W0071RJT003KD10M1SJT30345JQRJU060G05TRJU060G07TRJT003K010M1RJTO5710041RJT003KD08M1

Part Name & Description

SOCKET (3P)CONNECTOR (5P)CONNECTOR (7P)SOCKET (10P)SOCKET (4P)SOCKET (8P)CONNECTOR (3P)SOCKET (3P)SOCKET (4P)CONNECTOR (10P)CONNECTOR (8P)SOCKET (5P)CONNECTOR (7P)CONNECTOR (10P)CONNECTOR (3P)SOCKET (5P)SOCKET(7P)CONNECTOR (10P)CONNECTOR (4P)CONNECTOR (8P)

Remarks Ref.No.

FC1.2FC3.4

RL501, 502RL503

JK1JK1JK24JK101JK102JK103JK104JK105JK501JK502

Part No.

EYF52BCSJT388

SSY134RSY00090

SJS92311BSJS9234BSJS9233BSJF30579NSJF3069NSJF3069NSJF3069NSJF3069NRJH48011QJA0455ZCA

Part Name & Description

FUSE HOLDER (S)FUSE HOLDERFUSE HOLDER

RELAY (S)

RELAYRELAY

JACK(S)

AC INLETAC INLETAC OUTLETPHONO JACKTUNER/CD JACKAUX/TAPE1 REC. OUT JACKTAPE1/PBAAPE2 REC. OUT JACKTAPE2/PB/POWER AMP. JACKSPEAKER TERMINALHEADPHONES JACK

Remarks

(GC)

(E,EB,EG.GC)(GN)(GC)

Notes : * Capacity valuse are in* Resistance values are

microfarads (uF) unlessin ohms, unless specified

specifiedotherwise.

otherwise, P=Picofarads (pF) F=Farads(F)I K = l . 0 0 0 ( O H M ) , 1M= 1.000k (OHM)

Ref.No

RlOl104R105, 106R107, 108R109, 110Rlll116R117. 118R119.120R121. 122R123.124R125, 126R127. 128R129, 130R13L. 132R201210R211. 212R213. 214R215, 216R217R219.220R221224R225.226R23L232R233.234R301.302R303.304

Part No.

ERDS2TJ102ERDS2TJ274ERDS2TJ221ERDS2TJ220TERDAS3G332TERDS2TJ151ERDS2TJ100ERDS2TJ101ERDS2TJ151ERDS2TJ682TERDS2TJ823TERDS2TJ334ERDS2TJ561ERDAS3G102TERMS3G223TERDS2TJ183TERDS2TJ332ERDS2TJ824ERDAS3G272TERDS2TJ471ERDAS3G102TERDAS3G472TERDAS3G124TERDAS3G561ERDS2TJ823T

Values & Remarks

RESISTORS

1/4W IK1/4W 270K1/4W 2201/4W 221/4W 3. 3K1/4W 1501/4W 101/4W 1001/4W 1501/4W 6. 8K1/4W 82K1/4W 330K1/4W 5601/4W 1K1/4W 22K1/4W 18K1/4W 3. 3K1/4W 820K1/4W 2. 7K1/4W 4701/4W 1K1/4W 4.7K1/4* 120K1/4W 5601/4W 82K

Ref.No.

R305. 306R307, 308R309. 310R311, 312R313, 314R315. 316R317. 318R319, 320R401, 402R403.404R405, 406R407, 408R409.410R411.412R437R451.452R455.456R457R459.460R461464R465468R469.470R471474R501.502R503.504R5OS.506R507. 508R509512

Part Na

ERDS2TJ224TERDS2TJ392TERDS2TJ223ERDS2TJ102ERDS2TJ562ERDAS3G392TERDAS3G223TERDS2TJ183TERDS2TJ122ERDS2TJ823TERDAS3G272TERDAS3G823TERDS2TJ561ERDFS2VJ470TERDS2TJ473ERDFS2VJ182TERDFS2VJ391TERDS2TJ823TERDFS2VJ101TERDS2TJ223ERDFS2VJ101TERDFS2VJ821TERDFS2VJ2R2TERDS2TJ362TERDFS2VJ121TERDS2TJ392TERDFS2VJ121TERF2EXKR10V

Values & Remarks

1/4W 220K1/4W 3. 9K1/4* 22K1/4W 1K1/4W 5. 6K1/4W 3. 9K1/4W 22K1/4W 18K1/4W 1. 2K1/4W 82K1/4W 2. 7K1/4W 82K1/4W 5601/4W 471/4W 47K1/4W 1,8K1/4W 3901/4W 82K1/4* 1001/4W 22K1/4W 1001/4W 820l/4W 2,21/4W 3.6K1/4W 1201/4W 3,9K1/4W 120

2W 0.1

Ref.No.

R513516R517. 518R519, 520R521, 522R527R528R529R530R531, 532R533, 534R555558R559, 560R561. 562R563, 564R565570R601 R604R607R707.708R709, 710R751, 752R753. 754R755

C001, 002C1

Part No.

ERDFS2VJ100TERDFS2VJ1R0TERDFS2VJ100TERDS1FVJ100TERDS2TJ223ERDS2TJ824ERDS2TJ124TERDS1FVJ682TERDS1FVJ100TERDS2TJ182ERG1SJ561EERG1SJ102EERG1SJ151EERG1SJ181EERDS2TJ223ERDS1FJ120ERDS2TJ471ERDS2TJ391ERDFS2VJ6R8TERDFS2VJ470TERDFS2VJ221TERDS2TJ183TERDS2TJ102

ECED1HT682PECKWNS103ZVS

Values & Remarks

1/4W 101/4W 11/4W 101/2W 101/4W 22K1/4W 820K1/4W 120K1/2W 6.8K1/2W 101/4W 1.8K

1W 5601W 1K

1W 1801/4W 22K1/2W 121/4W 4701/4W 3901/4W 6.81/4W 471/4W 2201/4W 18K1/4W 1K

CAPACITORS

50V 6800U500V 0.01U

Ref.No.

Cl0l, 102C103, 104C105, 106C107, 108C109. 110C111, 112Cl 13, 114C115, 116C117. 118C119, 120C121. 122C123, 124C125. 126C201210C213, 214C219, 220C221224C225, 226C301, 302C303. 304C305, 306C307, 308C309, 310C311, 312C313. 314C315, 316C317, 318C319, 320C321, 322C401. 402C403, 404C405, 406C407, 408C409, 410C411. 412C413, 414C415, 416C426C427C428C451, 452C453456C457460C501504C505, 506C507C508C509C511, 512C513518C519522C523.524

Part No.

ECBT1H120J5ECBT1H102KB5ECBT1H820KB5ECA0JM222BECKW1H222KB5ECQB1H122KF3ECQB1H103KF3ECQV1H393JZ3UES1H010M1TAECQB1H472KF3ECKR1H103ZF5ECBT1H270J5ECBT1H181KB5ECCR1H101K5ECQV1H563JZ3ECCR1H271K5ECBT1H181KB5ECCR1H101K5ECA1HPXS3R3BECCR1H101K5ECBT1H820KB5ECA1HPXS4R7BECBT1H390J5ECA1CPXS100BECQV1H823JZECQB1H153KF3ECQB1H183KF3ECQB1H182KF3ECBT1E223ZFECA1HPXS3R3BECCR1H271K5ECA1CPXS220BECBT1H820KB5ECBT1H100J5ECBA1H681KB5ECCV2H070DECQB1H102KF3ECBT1H102KB5ECBT1E223ZFECKR1H103ZE5ECKR1H33.3ZF5ECCV2H680KECEA1HKA3R3BECAOJPXS101BECQV1H473JZ3ECEAOJK/U01BECA1HM70BECEA1HN100SBECBT1H180J5ECQV1H473JZ3ECQB1H153KF3ECBT1H102KB5

Values & Remarks

50V 12P50V 1000P50V 82P

6.3V 2200U50V 2200P50V 1200P50V 0.01U50V 0.039U50V 1U50V 4700P50V 0.01U50V 27P50V 180P50V 100P50V 0, 056U50V 270P50V 180P50V 100P50V 3. 3U50V 100 P50V 82P50V 4. 7U50V 39P16V 10U50V 0. 082U50V 0. 015U50V 0. 018U50V 1800P25V 0. 022U50V 3. 3U50V 270P16V 22U50V 82P50V 10P50V 680P

500V 7P50V 1000P50V 1000P25V 0. 022U50V 0.01U50V 0. 033U

500V 68P50V 3. 3U

6. 3V 100U50V 0.047U

6. 3V 100U50V 47U50V 10U50V 18P50V0.047U50V0.015U50V 1000P

Ref. No.

C525. 526C531. 532C551.552C601C705. 706C707709C711C712C751756

Part N

ECQB1H272JF3ECBT1C332KR5ECEA1JU010BECA1CM221BECA1JPXS221BECA1JAP220BECQE2104KF3ECKR1H103ZF5ECA1HPXS4R7B

Values & Reaarks

50V 2700P16V 3300P63V 1U16V 220U63V 220U63V 22U

100V 0. 1U50V 0.0 1U50V 4.7U

Ref . No.

1011121212121314151616117181920212223242526272829303132333435363637383940414344

Part No.

RGW0124KRGW0126KRGW0127K1RKM0036AKRKM0179KSJPA111SNE2 1291XTBS3+8JFZ1

Part Name & Description

CABINET PARTS LIST

KNOB, TONEKNOB, SELECTORKNOB, VOLUMECABINETCABINETSHORT P I NSCREWSCREW

XTW3+8T SCREWSHR415SUS227RFKGUVX500EKRGR0129AD1RGR0129AF1RGR0129AE1RGR0129BA1

CLAMPERSPRING (AK451. 452)FRONT PANEL ASS` YREAR PANELREAR PANELREAR RANELREAR PANEL

RGU0030 BUTTON, POWERRGU0509KRHN90001RFKJUVX500EKRKA00091RMN0143

BUTTON, MODENUTBOTTOM BOARD ASS' YFOOTHOLDER

RMNOH9 HOLDER

. Remarks

(E, EG, GC, GN)(EB)

(E)(EG)(EB, GN)(GC)

RMQ0259 ANGLERSQ0022RSQ0023RGKD394ARGKD412KRGKD413KRGK0414KRGL0134CRGL0136CRGU0611K

REMOTE SWITCH(REC. )REMOTE SW ITCH (PHONO)RINGSIDE ORNAMENT(L)SIDE ORNAMENT (R)VOLUME ORNAMENTORNAMENTORNAMENTBUTTON, POWER AMP. DIRECT

RMR0460K HOLDERRMR0461KRMR0502RSC0245XTBS26+8JSHE1873SHR9814SJS9231ASJS9234ASNE2123XTB3+16JFZXTB3+20JFZXTB3+8JFZXTfS3+8TRGKD415KSJS9233A

HOLDERHOLDERSHIELD PLATESCREWSPACERCLAMPERAC INLET COVERAC INLET COVERGND SCREWSCREWSCREWSCREWSCREWUPPER PLATEAC OUTLET COVER

(E, EB, EG, GC)(GN)

(EB)(GC)

Ref.No.

4546

P1

Part No.

XYN3+C6FZRWJ3907130QQ

RPG0975P2 RPN0539P3P4P5

Part Name & Description Remarks

SCREW (GC)CABLE ASS' Y(W702)

PACKING MATERIALS

PACKING CASEPAD

XZB24X34C04 PROTECTION COVERSPB1061 [PROTECTION COVER (MANUAL)RPQ0164 ACCESSORY BOX

ACCESSORIES

Al RQF1226 INSTRUCTIONS MANUAL ASS' Y (E)Al RQF1227 INSTRUCTIONS MANUAL ASS' Y (EB)Al RQF1228 INSTRUCTIONS MANUAL ASS' Y (EG)Al RQF1230 INSTRUCTIONS MANUAL ASS' Y (GN)Al RQF1229 INSTRUCTIONS MANUAL ASS' Y (GC)Al1 RFKSUVX500EK INSTRUCTIONS MANUAL (E)Al1 RQTU61B INSTRUCTIONS MANUAL (EB)Al1Al1A12Al3A2A2A2A2A3

RQT1162D INSTRUCTIONS MANUAL (EG)RQT1159G INSTRUCTIONS MANUAL (GC. GN)RQA0013 WARRANTY CARDRQCB0169SFDAC05E03SJA193SJA173

SERVICE CENTER LISTAC POWER SUPPLY CORD (E. EG)AC POWER SUPPLY CORD (EB)AC POWER SUPPLY CORD (GN)

RJA0004 AC POWER SUPPLY CORD (GC)SJP9215 AC PLUG ADAPTOR (GC)

SchematCz 2