Service Manual - ELECTRO LAGUNE
Contents
1. 1 B uH n qo Nel TAGE 4 P I 2W4TO i ze CONTROL V 68 i 8517 L50 2 25 0455 a EA 1 4 ARR 2WO 9 IDLiNGCICQ 0422 x ADJ Lch m acc re F apeg aa 0455 456 AC iN VOLT ADJ CIRCUIT 2SA I3O9AQSTA LIMITER R502 36K D ror 4 26 i Ao709 M ux MAIGSTA og In 5 2 502 8510 MB E SP penne i S OS 8 2 0 1 i gt 5 760 2 af Se RSIS OX AS i gt 2o z o 174410 o So 5 v o CN202 no ing Es Me nu je EMS KA KSI Gd AR 57 IS wd om i CURRENT STABILIZER tz ant x B 453 R ny lab S C NTROLIVI 0450 59001 2 a 1 x 04 Qz Lpt ree IOLINGIICQ 0456 za i E EX AbktRen MAIGSTA areas CN7O2A 45 19 i SU VX620 50 620 SU VX620 E PRINTED CIRCUIT BOARD DIAGRAM pars tist on pages 26 29 13 N Nr e SENSOR REMOTE m 7 a m ae o Semen Pra RON IDLING ICQ ADJ VOLTAGE CONTROL ld V AMP PC B REPI437A S GND ch 4 7 5 a2. mo AL x a 5 5 um 2 1 n 8 Olio oii 5 ulli gt 4 X konn Oj 52 gt 3 zi o Logs oO 15 l im lt Www M 6 o ag T m 1 a o o KO a x T d m PHONO P C B REPI437A S le adhered OBB TAA NN VOLUME le 2 REC OUT PLAYUN MAIN B REPI436A M JT t a 4a TAPE I REC OUT PLAY IN Am SESS on ER BR S S 24 E E aav ko Es ET Aare Pie ei qur 1 m dd di oe a TE WE 3 ri Hi Xu E E iU E al 5 LE Ex ag 1 9 2 E NP AE a 2 ee MA WA T SU AN MV 5 E i 5 F gt 4 XI NS QN VAS lt A Se oe oe _ i I E we DECEM or ux du Mmm a 4 d o Tum D AD gt y x is 1 4 2 A 4 gt Dium XOT 5 Fey i T ay z mte Z ae CONTROL aan SS ST RP ee _ nail
3. o YF X SS uu 2 2 2 2 TM UNAIIITA 3 pon B5 i el dicated voltage values are the standard values for the unit litt IL gl gll RELAY DRIVE E s 33 cl oc ER 1 of the DC circult tester CONTROL No mark Power ON X When nine is lighting up Important safety notice i i PUT Components identified by A mark have characteristics important for safety 92 i Tf i Furthermore special parts which have purposes of fire retardant LR ch RST ewe Rees 510 INPOT SELECTOR it MAIN measured by the DC electronic circuit tester hi ig igh impedance with CIRCUIT crios Leda zie 5 the chassis taken as standard Therefore there may exist some errors in the voltage values depending on the internai impedance resistors high quality sound capacitors low noise resistors 2 MAI65TA a o 7 aie TAPEI zz 8 D e one 15 atc are used When replacing any of camnonenis he sure to use rich 29 i PHONO 6 AUX o R204 2 pl only manufacturer s specified parts shown in the parts list 3 pn cj e e O eThis schematic diagram may be modified at any time with t
4. Ea CU 33 BEFORE REPAIR AND ADJUSTMENT 1 Turn off the power supply Using a 100 10 W resistor shortcircuit both ends of power supply capacitors C701 and C702 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 And increase the output of voltage controller gradually Connect the AC ampere meter to the primary side or connect the DC voltage meter to the B circuit of the secondary side Turn the VR of ICQ VR451 and VR452 to minimum counterclockwise After setting the output to zero of the voltage controller turn on the power switch of the unit Then check carefully whether the current value of primary side become more than following value or whether the DC voltage of secondary side is increasing slowly E lf the value of current is increasing unusually or the DC voltage is not increasing lower the output level of voltage controller immediately eThe current value of the primary side at no signal Confirm the power supply voltage of each area and provided voltage of the unit PROTECTION CIRCUITRY The protection circuitry of the amplifier may have operated if either of the following conditions is noticed eNo 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 for example the positive and nega
5. o mo Ramnuva tho raratan panan DTTA NA U LSS OG LOD Ref No Hemovai of ihe AC iNLET VOLT ADJ P C B No 12 Removal of the rear panel 13 Procedure Procedure 1 gt 12 1 gt 12 gt 13 AC IN cover 1 Remove ihe 11 screws 2 Remove the rear panel in the direction of arrow 1 Remove the 1 screw 2 Release the 2 claws of AC inlet cover Proradiira Wt Yy 112 14 Remote switch controller Remove ine 1 screw Remove the P C B angle Remove the remote switch controller CN702A CN702B 1 Remove the 1 flat cable CN702A CN702B 2 Remove the 5 screws Q A o N c Remove the phono P C B in the direction of arrow SU VX620 Ref No 16 Removal of the main P C B Procedure 1 2 gt 9 gt 11 gt lt a aA an iz 14 gt 1D 1 Remove the 1 flat cable CN702A CN702B 2 Remove the 8 screws Q9 Q Drarandiira A UR 1 2 9 11 125141617 1 Unsoider tne power IC 2 Remove the 2 screws Q9 eWhen mounting the power IC and heat sink apply silicon thermal compound RFKX0002 or equivalent to rear of the power IC 1 Remove the 4 screws Q9 O Remote switch controller lt N z E Remove the bottom board 4 Reinstall the f
6. Vis com tae inal b ici uA dou TIT TUN TEE gu nnn n P reel f NE SU VX620 SU VX620 16 17 18 19 20 21 22 23 24 25 J IN VOLT ADJ 4 5 REPI437A S ee conr 50 60Hz VOLTAGE ADJ SVI3205B BA6218 MN1381STA 25 992 2SA1309AQSTA 25K20130Y REP1437A S 2SA1123RSTTA 2SC3311AQSTA 28J3130Y 2SC1685RST UN4111TA 25 2631 5 UN4211TA UN4219TA MA4036MTA MA4160MTA 155291 LNO14304P 1SR35200TB P300DLF d MA165TA 4068 4240 LN018304P xXx Cathode MA167ATA 4082 E es MA29WATA Ca Cathode 2 Cathode Cathode Cathode e thode Anode ca a Ca Anode Anode SOURCE DIRECT Es oe 0 0 5 74 ASIE e Il NOLITE ig uis Ll Eu m ee NT 44585156524 camo tag IE id EGG f T AH pick il TU Sel iy E A oA ax EE nnm i 2 3 Pu SUBSONIC LOUDNESS BALANCE TREBLE Bass p SPEAKERS FILTER 21 m 50 620 SU VX620 B WIRING CONNECTION DIAGRAM Taraa DAE U E
7. co Nyor PN 2 7 L g V Amp H ch ls eel SU VX620 SU VX620 SU VX620 5 DIAG RAM Parts list on pages 26 29 _ 2 P dd a 49 1 42 i 14 g 10 V 4 ow 2 1 2 3 4 5 6 7 8 REMOTE SENSOR CIRCUIT ry PHONO CIRCUIT EMOTE 5102 REC SELECTOR TAPE2 DAT gt I 4 TUNER e RUT C107 2 2 DAT 5 270 lev 33 5 6 AUX c 2801 cus RBIO LK A 5600 0022 SOE AK i Z Lu Ma Nn RIOI RIOS CI23 9 i23 RIZ7 125 2 45 22 De REMOTE SENSOR PHONO joe IK 190 25033 390P Jen wok ne zB 4 Q802 ie el Gale a Len REC OUT SIGNALTL ch n nx i l sevi 29 ent o Nox 4 Se 4 T OV ov aw r T ae 4 ae ve A gu My 3 2 1 oe LED DRIVE 9 6 9 AN6558F sab d MNISSISTA JK 0 PHONG RESET MEME b asl 33 3 AE 9 z 2 c D Loe 7v Notes eS1 Power switch in position POWER 52 Voltage select switch 240 V positon VOLT ADJ 25101 Input select switch in PHONO position r NES D s zal ox v gx 433 INP
8. BASS 50 Hz 10 10 dB TREBLE 20 kHz 10 10 dB Subsonic filter 30 Hz 6 dB oct Loudness control volume at 30 dB 50 Hz 9 dB Output voltage TAPE 1 TAPE 2 DAT REC OUT 150 mV Channei balance AUX 250 Hz 6 3 kHz 1dB Channel separation AUX 1 kHz 50 dB GENERAL Power consumption 230 W Power supply 50 Hz 60 Hz 230 V 240 V Dimensions W x H D 430 x 125 x 316 mm Weight 7 8 kg 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 SU VX620 CONTENTS Page eBEFORE REPAIR AND ADJUSTMENT 2 ePROTECTION CIROULEBY sies Ee ree doe 2 e REM DO D tees 2 eFUNCTION OF CONTROLS 3 CONNEC THONS eid d Rc eae RS Oc CR e 4 6 e DISASSEMBLY INSTRUCTIONS 7 11 eMEASUREMENTS AND ADJUSTMENTS 11 eSCHEMATIC DIAGRAM 12 17 Page ePRINTED CIRCUIT BOARD DIAGRAM 18 22 eWIRING CONNECTION DIAGRAM 23 eFUNCTIONS OF TERMINALS 24 eBLOCK DIAGRAM 252252553555 5505599 EE a 25 eREPLACEMENT PARTS LIST 26 29 32 eCABINET 30 31 i aaa ka eR ta
9. SPEAKERS Lch R ch FUNCTIONS OF IC TERMINALS 801 M37470M2063S Jc FY main 5 CN702A CN7028 REMOTE SENSOR CP404 ERE CN404 6 MEA 601 SWITCH FI IN VOLT ADJ P C B 52 INPUT SELECTOR SOLDER S DE i WHT BRN WHT 8LK Yn 8LU R A oe SOLDER SIDE Power tronstormer A SOLDER SIDE 8 09 2 WHT ORG WHT BLK WHT BLU 23 16 Vss GND terminal H OPERA CN201 TION P C B Vcc Power supply 5 Terminal Name Connected to GND Remote control Bienal output Z N P16 CLK 3 P15 SOUT P14 SIN P13 TI P10 P29 INS Level encoder volume control signal output U 10 22 2 1 2 1 Connected to GND Reference voltage input 12 P20 INO 13 VREF XIN Connected to ceramic oscillator OUT M N gt 24 9 20 m no En 1 8 n3 h 4 Terminal Name P31 INTI P32 CNTRO P12 TO S 23 P40 ol Connected to GND Connected to GND 24 P41 y 01 Reset signal input Back up detector signal input Remote control receiving signal input
10. a ORDER AD9207259C2 Service Manual Stereo Integrated Amplifier SPECIFICATIONS DIN 45 500 20 Hz 20 kHz continuous power output both channels driven 2x50 W 8 Q 1 kHz continuous power output both channels driven THD 1 2x65 8 2x90 W 4 63 Hz 12 5 kHz continuous power output both channels driven THD 0 7 2x60 8 2x80 W 4 Total harmonic distortion rated power at 20 Hz 20 kHz 0 007 8 Q intermodulation distortion 50 Hz 7 kHz 4 1 SMPTE rated power 0 007 8 Q Residual hum and noise 1mV Damping factor 60 8 30 4 Headphones output level impedance 540 mV 330 Q Load impedance A or B BI WIRING 40 160 80 16 Input sensitivity impedance PHONO MM 2 5 mV 47 kQ TUNER CD AUX TAPE 1 TAPE 2 DAT Phono maximum input voltage 1 kHz RMS 150 22 MM 150 mV 66 SIN rated power 4 Q PHONO MM 76 dB 78 66 TUNER CD AUX 1 2 DAT 91 dB 99 dB IHF 66 S N at 26 dB power 4 PHONO MM 68 dB TUNER CD AUX TAPE 1 TAPE 2 DAT 70 dB Technics Amplifier Colour RF neregana Black Type Areas Suffix for K S N at 50 mW power 4 PHONO MM 64 dB TUNER CD AUX TAPE 1 TAPE 2 DAT 64 dB Frequency response PHONO MM RIAA standard curve 1 dB 30 Hz 15 kHz TUNER CD AUX TAPE 1 TAPE 2 DAT 3 Hz 80 kHz 0 3 dB 0 dB 0 3 dB 20 Hz 20 kHz Tone controls
11. 000 OHM 1M I 000k 0HM Ref No Part No Values amp Remarks Ref Part No Values amp Remarks Ref No Part No Values amp Remarks R501 502 502 ERDS2TJ362T 1 4W 3 6K 115 116 ECQBLHS62JF3 50V 5600P M 504 ERDAF2VI121T 1 4 120 118 1 R505 508 nos 06 oszu3e 39K ERDS2TJ392T nos 06 oszu3e 39K 3 9K 0119 120 cns 120 Ecopina72Jr3 sw 4700P 50 s 102 ERDS214102 508 ERDAF2VJ1217 174 120 0121 192 JECKRLELOSZFS SN 9000 ECEALEKA3R3B 1 48 220K 29V 3 30 Mo a dee PE 17 918 ERDAFZVJIRUT 1 48 1 100 HeAN t n Pano 1 tarnm n A naam met 10 1 940 YJOROI p e D 8 2403 pno1 R99 1 1n M912 014 ani n Val Vida AV La AL ECCRINLOLKS 1 Li nS UL Lf amp it fe pesmer va oa Wis wie 527 023 n 1 44 C219 219 220 ECBTIH271KBS R528 ERDS2TJ824 1 4 820K C221 224 ECBTIHI81K85 8129 130 ERDS2TJ563 56K ERDS2TJ124T 1 4 120K A ECQV1H583 M3 SOV 0 0580 R131 132 ERDS2T H02 1 44 zi R530 ERDSIFVJ682T 1 28 6 8K 6251 252 ECEA JKA101B 6 3V 100 R201 210 ERDASOGIOT 1 4 1k R531 532 ERDSIFVJi00
12. P C B Procedure Procedure 1526 Input selector Input selector knob Volume P C B Pull out the volume knob 1 Pull out the input selector knob Remove the nut 2 Remove the 3 screws Q 9 Remove the 1 screw 3 Remove the input selector P C B in the direction of arrow Remove the volume P C B in the direction of arrow m Removal of the operation P C B Procedure 1 gt 2 gt 3 gt 5 7 4 Operation P C B 0 A 11mm B 16mm C longer than 22 mm eUse wrench of the dimensions shown in the illustration above to remove nuts C 1 Pull out the 4 knobs Remove the 7 screws Q9 2 Remove the 4 nuts 159 Procedure 152568 Switch P C B eRemove the 1 screw 1 Remove the 1 screw 2 Remove the V amp P C B in the direction of arrow 3 VA620 fixe tee EE MIC C wc ee C d is Removal of the power transistor Removal of the remote sensor P C B Procedure Procedure 1 9 10 1 211 Power Power transistor transistor Solder point Solder point 1 Unsolder the power transistor 2 Remove the 4 screws ewhen mounting nower transistor annlv cilicnn tharmal 1 a XJ p her wee ere raa SEE RR WAT I compound 0002 to the rear of the power transistor
13. POWER switch 2 SELECTOR LED TAPE 1 drive ar 1 oe saseonuvsoa _ NIENTE Connected to GND ee o DIAGRAM Co de n INPUT 4 8 SELECTOR pe i is I 7 phono 3 E 04 PHONO e j 5 E UPC4570C 1 101 j 1 X p D she qd Aux 5 nau uner Too O le TE On Ro ET rapel l 52 16pe 2 TAPZ2 DAT pravan L a 4 D ke ew owe Gee af amp A als ape i 5 ol si 4 8 REMOTE 0808 of o 5 JS Sto Sz 15 5 4 4 0 ds el 1 6 60 ls OUT es DB Q Q Q Ca ae nmn TAPED 5102 RECtOUT REC SELECTOR TAPE 2 DAT 5 reciour 0401 AN7062N 401 VOLTAGE 14 13 5 12 1 045310454 E Current mirror 0457 461 4 f 0458 462 gt Ka D Class AA 17 9 94 8 E stobilizer L lt o e am zc s Id 18 i indicates pin No of right chonnel 9465 10466 joy C o 6 Q459 463 Q460 464 C8 0451 0452 SI POWER FI AC230V 240V t50760Hz 0705 LLI 076 0761 5201 MODE stereo 8
14. pa ELARING SPEA EPS Set the voltage selector to the voltage setting for the area in which the unit will be used Use a minus screwdriver Set the voltage setting to 230 V or 240 V Note Note that this unit will be seriously damaged if this setting is not made correctly SU VX620 To connect to speakers One pair of speakers be connected to the terminals of this unit and one pair to the B terminals or only one pair of bi wired speakers can be connected to all terminals To connect main and or second speakers Main A speakers not included right right Second B speakers not included ll Load impedance e When only the A or only the B terminals are used 4 16 ohms eWhen both the A and the terminals are used simultaneously 8 16 ohms To connect bi wired speakers not included left Note Connect only bi wired speakers in this way Load impedance When bi wired speakers are used 4 16 ohms ll Bi wiring The treble range and the bass range of the speakers are con nected to the speaker terminals of the amplifier by using two speaker connection cords separately for each As a result of making connections in this way sound can be reproduced with much greater nuance and detail with the feel ings of air oscillation and deepness of sound provided by an input source that suppresses reciproca band range interf
15. 104 80057007 50 ikm Jkl05 5 3069 TAPE2 DAT 801 1 SPEAKER TERMINAL BOARD JK302 045570 HEADPHONES JACK CN401 402 810624097 SOCKET SP JKBUI AMANA DI nnavot mun 10ni Ur er pat wWUJugnmlrumi NGOL Socr er e CN801 RJUO63W07T SOCKET 7P CN802 803 RJUOB3WOS9T 50 9 451 RJUO57WO04 TEST POINT Ch804 RJUOO3KOO 6M1 SOCKET 6P 805 SJSS0S81BB SOCKET 5P CN702A 8141704 SOCKET 4P CN702B RJS1A1703 CONNECTOR 3P T RITOO3KO10 1 CONNECTOR LOP peer RJJ33TRUI REMOTE CONTROL QUT nk ink lIpiTOCcGUnn a 31 nnWwigernmapb VI lU LUY Iu IUJGJ IUUJ L JUUIMTLVIVILVJI 7 RITOASKNIN 1 CONNECTOR 109 501 SJT30345JQ CONNECTOR 3P pe RJTO03K008 1 CONNECTOR BP CONNECTOR 7P S TERMINAL S AK45 452 1915227 TRANSISTOR SPRING E102 SHC1009 SHIELD PLATE E201 enD PLATE E501 ISNEL004 1 GND PLATE 701 ISNEI004 1 GND PLATE FUSE HOLDER S V ee ee Se c me LX I C CM RR Cc CC JR CR MEME M ML D lor CRECEN Notes Capacity values in microfarads uF unless specified otherwise P Pico farads pF F Farads F Resistance values are in ohms unless specified otherwise 1K 1
16. 2 a x 510406 osos g sY 34 St pets MM VG fuc wN MA MEA MODE LOUONES 1 519 on Ee 82 R56 R363 2 1 Wea C416 ox Iw150 wide 2 J 9463 1 av 5 f 228 aSa S IOQOP o stereo tetas mos oc o T 2 7K 16 2 CALA 4465 N 4 lvi gor Sor t n 23V om 2 4V Ei UPC4570C Dx 8562 564 251 mx 0402 ES 1WI50 19180 1 2 10 g MAIG7ATA 18V ox 2 _ 2v o9 ut vot L3 a gel SST za 1 4 gt N CP202 o p du onn o cr 73 T R437 56 o er 47K 3 i gt CN402 I 17 1 O 4 iTV 45V o 6216 f 3 3K u rat 8 ARTS ART52 R501 36K 1 2 470 1 560 i C5251500P R533 LEK ART52 poe riy VR451 Q457 458 Q459 460 25C263IRSTTA 2SAIIZ3RSTTA CLASS AA AMP CLASS AA AMP Peru o S RE cur Ol ico 501 Q452 484 D482 6453 SVI32058B 2S5C33 IAQSTA 165 68 PETS DNE LIMILTER q7 B m i So
17. 201 1 VOLUME gt mone Q R ch R ch Y VR20O2 202 i LOUDNESS f BA6218 1 251 MOTOR DpRIvE 0805 806 807 0809 810 811 Relay drive input selector 2 E 07 SVI3205B E POWER AMP Q762 763 gt gt Power supply cont 25 gt N 2 z MK M QJ N 8 gt gt 16 SU VX620 UPC4570C E TONE AMP C8 S204 SUBSONIC FILTER off on VR30I 302 Treble Bass 5203 Pott SOURCE DIRECT MNI381 STFA RESET SIGNAL GENERATOR REMOTE SENSOR 980 0803 5801 3 REMOTE MODE OFF etai P30 INTO M37470M2063S 807 6 MICRO COMPUTER REMOTE R ch HEADPHONES rei SPEAKERS E i i I 0501 503 Relay drive 050ie 503 S 501 LED dr Y SPEAKERS 0603 i CURRENT DRIVE D602 VOLTAGE CONTROL s SU VX620 REPLACEMENT PARTS LIST Notes Important safety notice Components identified by A mark have special characteristics important for safety Furthermore special parts which have purposes of fire retardant resistors high quality sound capacitors low noise resistors etc are used When replacing any of components be sure to use only manufacturer s specified parts shown in
18. 7M A32 Ref No Part No Part Name amp Description Remarks Ref No Part No Part Name amp Description Remarks Fea PNIS PACKING MATERTAI per RGWO150 K TONE KNOB A P2 RPRO539 PAD RGROISI K SELECTOR KNOB P3 XZB50X65A022 PROTECTION COVER RKwO036A K CABINET 69 RPQO1S4 ACCESSORY Po AZB24X34C04 PROTECTION COVER m wem _ E Z1 9 DED TE DA A DE AD IEM npboonn 7 Corl masa O RKK0020 K BATTELY COVER for REMOTE CONT RJANO19 1K EG EO A AC POWER SUPPLY CORD RKAQOS3 A 1007 12 185 0 ORNAMENT Oo RGUO809 K MODE BUTTON DIRECT BUTTON 33 SHE187 2 SPACER SHR3814 CLUMPER mu 35 SJS9231A INLET COVER 6 sw2123 SCREW p 55990 SPRING 38 BS3 8JF 33 AIWS 157 SCREW 41 YTRA IE Dao nus y 20 FRONT PANEL ASS Y AGKOALS K UPPER PLATE EB EO z 390713000 FLAT CABLE 8702 51 13903050 FLAT CABLE W501 PACKAGING Pad Pad Pad P1 33 P6 Battery 4 A5 Pad P2 Pad 9 8 ass y SU VX620 Printed in Japan F920709500HS FF YU IS LO
19. Be careful when disassembling and servicing Removal of the cabinet Removal of the front panel ass y 1 gt 2 Front panel Remote switch controller i Remove the 7 screws 2 Remove the 4 screws For EB EO areas 3 Remove the upper plate For EB EO areas 1 Remove the remote switch controller 2 Remove the 3 screws Q 9 Remove the front panel ass y in the direction of arrow Removal of the remote switch controller B Replacing of the remote switch controller e Remove the 4 claws 1 Tum the selector knobs to the arrows 2 Putthe switch slider of switch to end and put in the remote 5102 REC SELECTOR switch controller Remote Switch Controller Switch Controller Rec selector knob Switch Ref No Removal of the power switch P C B Ref No Removal of the remote switch 3 4 controller Procedure Procedure 1 2 3 1 2 4 Rec selector Power switch P C B knob Remote switch controller z Clamper Pull out the rec selector knob Remove the nut Remove the 2 screws Remove the rec earth spring Remove the remote switch controller in the direction of arrow 1 Remove the 1 connector CP501 2 Release the cables from code clamper Remove the 2 screws 50 620 Ref No Removal of the volume Removal of the input selector
20. ES VOLUME CIRCUIT tt ltSouRCE SUB SONIC C302 mio2 50 3 5 580 DIRECT FILTER P L i sl 0465 MAIGTATA 401 9501 2503 AN 7062N 2SAlI23RSTTA A Aic 2SA992EFPTA ABO VOLTAGE CONTROL V AMP 0461 462 26 VOLTAGE AMP PRE ORIVE 1 2 OFF RELAY DRIVE IDLINGIICO ADJ POINT 28 20130 TH20 59 c ee eg LED DRIVE 52 a CLASS 100K 100K ON E ERE 2 s 0401 0602 0463 464 LNOI43Q4 gt 2543150 7 AU VOLTAGE L ch R ch NOS c231 CONTROL CLASS A oga 231 C I w IL D 0465 466 SSE 2235 amp l ss e 6619 44 6v 28C i685RST 820K a ICQ ADJ wo eT Dyz cao x C407 ec ez 95 lt 50 53 2 2 oo MTA cox mo T n T gt s 5 gei 1 S204 1 on L zd 06 C310 C308 82P ROK ca 3t 5 6218 t C213 ar DER im o D466 MOTOR DRIVE 3 27K 0 056 ma mer i 2 3 4 5 1 7 8 8 4 MAIG7ATA MAIGTATA MOTOR a T R236 gt 2 02 45 5svT43 6v 44 WW 45v on 46 3Y IC 25I vxi 45 S H 2 a 94 4 peso S 5202 7 cz32 R40
21. S This switch is used when listening to music at a low volume level Auditory perception of sound in the low frequency range falls off at low volume but when the switch is set to the ON position this deficiency is compensated for so that the full impact of the musical performance can be en joyed Subsonic filter switch SUBSONIC FILTER This switch is used to eliminate ultra low frequency noise such as motor rumble and unusual vibration of the woofer cone caused by a warped disc etc Mode selector MODE This selector is used to select stereo or monaural operation Remote control signal receptor REMOTE SENSOR Receives the signals from the remote control SU VX620 5 connect to each terminals Make connections to each component in the system by using stereo connection cables not included Stereo connection cable White L Red R A PHONO terminals REMOTE CONTROL OUT terminals Connect to a turntable This terminal can be used only with Technics tape deck and com pact disc player which have the appropriate remote controi ter minal Consult your dealer for details Proper connection with remote contro connection cables will allow control of some functions from this unit s remote control transmitter Turntable not included Connect to a tape deck and or compact disc player as shown below If a tape deck is not being used the com
22. T L 28 10 A C253 254 ECQVIHIO4JM3 50V 0 20 R211 212 ERDAS3G5B3T 1 48 56K 8533 520 ERDS2TJ182 E 1 8K C301 302 ECAIMPKS3ROB 50V 3 30 4W 18K AW 3 3K 50V SN 20P 6231 232 R555 558 ERGISJSSIE 903 304 0 100P 82 ERGISJLO2E R559 560 ECBTLHB20KB5 50V 217 ERDSZ1J824 1 4 820K R301 562 JERGISJID5iE if 150 ECALHPXS4R7B 4 70 R219 220 jERDLS2VJ272T 1 4W 2 7K 583 564 ERGISJI8IE 180 C309 310 90 5 50V 39 R221 224 6271421 1 49 470 R585 570 IERDS2T1223 Lo 2K 7911 312 ECAICPASIQUB 16V 100 ERDS2TJ824 1 4W R604 ERDS2T1221 2f 4314 31 FCQV1HR23 M3 50V n R251 ERDSIFVJ100T 1 2W 10 707 708 ERDAF2VJ6R8T 53 50V 0 015 R301 302 ERDASIGS61 1 4 50 0 018 R303 304 ERDS2TJ823T 1 49 ERDS2TJ222 1 22K A 2219 320 FCQB1H222JF3 50V 2200P R305 306 ERDS2TJ22aT 22 1 49 321 322 2237 25V 0 0220 207 308 0521 3071 AW 3 9K NE 752 ERDSIFVJ471T 1 28 40 A C323 324 ECBTIHI21KB5 50V 120P R309 310 IERDS21J223 22 ERDSLFVIS61T 1 28 580 ECAIHPXS3R3B 50V 3 30 ERDS2TJ102 1 4W cer S cl R315 318 ERDASOGUSZI 148 3 9K ez E iK EINE 13 50V 82 8217 318 ERDASSC2D3T 108 22K 782 ERDS2T3103 L 4 1 p
23. TE SENSER 455 466 2SCl885RST TRANSISTOR 501 503 28 992 TRANSISTOR Q761 25 20370 TRANSISTOR 07620 2SC3311A Q TRANSISTOR 163 UN4211 TRANSISTOR t 3 COIL 5 1 SLQZ650MH49 COIL 251 252 ELEXTIROKA9 0011 eO Jummm jm _ 512 ae S Q801 806 04211 TRANSISTOR 7 UN4219TA TRANSISTOR 08 4211 TRANSISTOR 0809 81 UN4111 TRANSISTOR DIODE S D401 402 1MA167 DIODE D403 4044 1MA4036MTA DIODE D405 406 165 DIODE D451 MA29WA DIODE SENE E RIPINBOLEW PONER TRANSFORER A e ees DENM wmo 0 ey eroccaooata ___ M E UL MEN RN S 0502 LNO14304P DIODE LED a P300DLF DIODE A gt fw F1 XBA2C25TBO or Pe ea oS c c gt 1 c EA J c gt a N E V Az Ref No Part No Part Nawe amp Description Remarks Ref No Part No Part Name amp Description Remarks s A 2 ne FSP RC E HOLDER ESD26200A 94 VOLTAGE SELECTOR Ay 5201 ce 7 MODE RL201 203 RSY00144 0 RELAY EBENEN RL501 502 RSYO013 0 RELAY RLS03 RSYOU14M 0 RELAY Ta arr sear SIS0231 1B INLET SJF3068N TUNER 42 0 008 SocKeT 8P saraan CN103
24. UT SELECT e8102 Rec select swltch in 2 DAT gt 1 position 201 E REC SELECTOR 3 i vy E R809 22K M 116 4 5 ev 56v 5690P 0 022 J L 24 ciO risl 26 08 ni 390 25V3 3 P 68 12K IBOK Sov K cioe top pl RIIA 58K a ssl 4 i 270 RBOB 22K Ia a e P fs n m 50v 0 47 e el i 5201 Mode select switch in STEREO position MODE wo MEER 1 e 3 8202 Loudness switch in OFF position LOUDNESS 8 COMPUTER T AA m WAR ni ee 5203 Source direct switoh in ON position R8 I IK m ng 51 EC SOURCE DIRECT 2 stl tlle lee GGXO 5204 Subsonic filter switch OFF position Ju SUBSONIC FILTER e5501 Speaker select switch OFF position SPEAKERS i C 80 oer amp 3V1000 WEE EQUES 5801 m m nmr Muuct wvrr 9 55v UNA2IITA H Pi Z igege EE wwe 95801 Remote control input erase OFF LE C801 x 5 A m o R 0809 81 2 29 Q 34 c Fr 2
25. en ERDS2TJ1831 R801 804 ERDS2TJ102 1 1K 02 lenoszrvi22 148 1 4 805 805 ERDS2TJ103 1 4 10K 13 44 i oD 1500 7 R403 404 PRDS2TJ823T 1 48 7 ERDS2TJ102 02 SOV 1000P Ros 406 ERDAS3GT T 1 48 2 7 809 ERDSPIU223 1 4 26 R407 408 ERDAS3GE23T R810 811 ERDS2TJ102 1 0427 R409 410 ERDS2TJ561 R812 814 ERDS2TJ39 1 48 428 MI 412 02 85 50V 1000P ECBTIE223ZF 25V 0 022U ECKRIHLO3ZF5 50 0 010 ECKR1H333ZFo 50 0 033U ECCV2H880K 5001 ERDAF2VJ470T 1 4W 47 8815 ERDS2TJ102 1 4W 3 ERDS2TJ104 1 4W 100K 0451 452 0453 456 51 492 ERDAFZVJ472T 1 4W 4 7K R817 ERDS21J103 1 4 10K 0457 460 ECEAIHKA3R3B 50V 3 3 R453 454 ERDAFZVJIS1T 1 4 150 C461 462 ECKRZH1032U 500 0 010 R455 450 ERDAF2WIZZIT 1 4 270 CAPACITORS 6501 504 jECAQJPXSIGIB 6 2V 1000 182 C505 506 7241 21 50V 0 1471 1 44 100 R461 464 ERDS2TJ223 ci03 104 ECBTINIBIKBS 180P C508 R465 468 ERDAF2VJ1U1T 1 49 105 106 ECBTIH100J5 50V 10 0509 ECEADJKALOIB SOY 47 ECEAIHNIOOSB SOV 100 69 410 ERDAFZWIBT 1 4 1 8K 107 108 ECEAICKA330B 511 512 ECBTIHI80J5 50V 18P 44 mrs 1 4 22 108 10 _ EcBTIRS91KB5 390p Jlcs
26. erence Refer to the operating instructions of the speakers To connect cords to terminals D Strip off the outer D covering and twist the center conductor 2 Turn completely to the left 3 Insert the wire andturn 3 completely to the right Pull the cord to assure a proper connection Note Be sure to only connect positive cords to positive terminals and negative cords to negative terminals Note To prevent damage to circuitry never short circuit the plus and minus speaker wires Connect the AC power supply cord included after all other cables and cords are connected AC power supply cord included 5 e Household AC outlet VOLT Q mH O O u 9 Bi WinthG SPEAKERS Insertion of Connector Even when the connector is perfectly inserted depending on the type of in let used the front part of the connec tor may jut out as shown in the draw ing However there is no problem using the unit T 1 OFO Approx 6mm Appliance inlet Note The configuration of the AC power supply cord differs according to area For EB area lt Household AC outlet a Fit a suitable plug to the AC power supply cord P Cmm SU VX620 DISASSEMBLY INSTRUCTIONS ATTENTION SERVICER Some chassis components may have sharp edges
27. he 9 SWITCHING i 1 REM DEREN ht deveiopmeni of new technology 3103 UE R205 rhech 5 Q805 806 AUX En d MS MEER UN421ITA 25 Caution bnc S9T 810 3 TUNER ae 8 ag Ej IC and LS are sensitive to static electricity jis UNA219TA i Secondary trouble can be prevented by taking care during repair ae Cover the parts boxes made of plastics with aluminum foil Ground the soldering iron LR ch RELAY DRIVE cd CPA ino oc Ng gt Put a conductive mat on the word table a not touch tha Io leas of IC or SI with the finaers directly r L eh L PLAY um LR h i n O 5X2 zu C208 C207 oo he 3 eVoltage and signal line gem 05 8223 B D X e _ 2 Ma alih a Tin t FOSIUVE INO i mo 579 i i Ne LT rit Negative voltage line NE E 224 470 1 Phono signal line E Lren SST E Cr Recording output signal line SABERJUATS 2 r Lich PLAY IN LR ch 14 DEN 12 SU VX620 SU VX620 SU VX620 4c t 417 4 ig I V AMP CIRCUIT gt G3 h nn h3 gt o 9 e If OPERATION CIRCUIT P
28. pact disc player can be connected directly dotted line Phono input capacitance is about 470 pF This unit REMOTE Bi GND terminal This terminal is for use with a turntable which has a ground wire Connection cable for remote control Included with tape deck Tape deck not included Connection cable for remote control Included with compact disc player Compact disc player not included Note For a compact disc player with a remote contro sensor the above connection is not necessary e C TUNER terminals Connect to tuner Tuner not included terminals 2 Connect to a compact disc player G Compact disc player not included R D E AUX terr terminals _ Connect to a component such as a video disc player audio only connectable etc Video disc player not included AUDIO OUT Q R L n SU VX620 F 1 terminals Connect to a first tape deck Tape deck 1 not included REC IN PLAY QUT Ao Qm 0 TAPE 2 DAT terminals Connect to a second tape deck or a digital audio tape deck DAT Digital audio tape deck DAT not included REC IN PLAY OUT ANALOG D D R L 1 R Cj To set the power voltage VOLT ADS f e ik ey C4 AC IN 45 lt um 9 lt 96 4
29. r sie Ecovi473Jw8 50 0 0470 475 478 ERDAF2VJISIT 1 48 113 14 DE 50V 0 0220 C519 522 53 3 50V 0 015U SU V X620 Ref No Part No Values amp Remarks 50 1000 errs 0531 532 ECBTIC332KR5 16V 3300P 591 952 jECEAIJUGLOB 63V C701 702 ECES1HV682UG 50V 68000 C707 708 2208 C711 ECQE2104KF3 ECQV1H104JM3 5922 E94 VD Uih ULT 250V 0 0 A 0 10 A ECBTIE1037F 25V 0 010 0763 10V 470 0 0008 6 3v 1000 0802 ECBTIE1037F 25V 0 010 0804 ECEAQJKALOIB 6 3 1000 0 9 SOV 50V 2 2U C807 ECEAiHKARA7B 50 0 470 808 904 ECBT1E1037F 25V 0 010 C810 ECEA1CKA220B 16V 220 811 812 ECFAIHKAR47B 50V 0 470 m E Tl 3 V Abel m A A A A rI Art loLUu AIlluIl 2 3 4 5 6 7 8 9 i QL e p 5 6 798771 SL EG Le JK 05 SER ule 5 SES 2 qo IMS CNN A AES A EN LALIE oS ed SN m SASS a SS UA A 30 ee 2314 o
30. ront panel ass y to the main and place the unit as shown right 2 Remove the 9 screws Dain abel amp eee meta m tabh amnantralla n Ba DINO OHIO SILIEG LAIGE IU UTOG SWEA I SU VX620 eREPLACEMENT OF THE FOOT 1 Remove the 4 heat melted posts on the bottom board ass y with a pair of nippers or similar tool 2 To replace the foot RKA0053 A on the bottom board ass y melt the 4 posts with a soldering iron S o 8 Soldering iron Bottom B ottom 55 X M 0053 MEASUREMENTS AND ADJUSTMENTS EE OPO e ADJUSTMENT Control positions and equipment used eVolume knob Minimum eDC electronic voltmeter EVM eSpeaker selector OFF nono e VOLTAGE CONTROL V AMP IDLING ICQ ADJUSTMENT TP451 V amp 1 Test equipment connection is shown in figure Connect the DC EVM on both channels DC EVM 2 Completely turn the V amp adjusting volumes VR451 VR452 zi LALN TEN p os 3 Tum on the set when it is cold and about 8 sec later adjust QU Tot VR451 and VR452 so that the voltage is 100 10 mV 9 2 o counter clockwise 7 I i ii VR451 V Amp L ch aa i
31. tection circuit functions and this indicator will not illuminate 3 Source direct switch SOURCE DIRECT This switch is used when enjoying high quality sound playback such as that from a CD 4 Volume control VOLUME 5 Recording selector REC SELECTOR This selector is used to select the sound source to be record ed by the connected first tape deck and or second tape deck or DAT 6 Remote control input indicator REMOTE SELECTOR This indicator illuminates to indicate the input source selected TAPE 1 CD or TUNER While this indicator is illuminated the input will not change even if the input source is changed using the main unit input selector Remote control input erase button OFF This button is used to erase the input selected on the remote control transmitter in order to select the desired source us ing the input selector on the main unit Input selector INPUT SELECTOR This selector is used to select the sound source to be heard such as a disc radio broadcast etc _SU VX620 9 Headphones jack PHONES Speaker selector SPEAKERS This selector is used to select the speakers to be used Tone controls BASS TREBLE The bass control is used to adjust the low frequency sound range and the treble control is used to adjust the high frequency sound range Balance control BALANCE This control is used to adjust the ieft right volume balance Loudness switch LOUDNES
32. the parts list The parenthesized indications in the Remarks columns specify the areas Refer to the cover page for area Parts without these indications can be used for all areas Ref No Part No Part Name amp Description Remote Control Ass y Supply period for three years from termination of production D705 ISR352007B DIODE A Part Name amp Description Remarks D751 MA4160M DIODE mmam umurS 1101 ANGS58F I C PHONO EQ AWP 0752 753 MA40B2MTA DIODE 1251 846218 1 MOTOR DRIVE 0761 4068 DIODE c301 0 4570 L C TONE AMP 801 1SS291TA DIODE 41 I C VOLTAGE ANP D802 808 165 DIODE 10500 8 132058 fI C POWER AMP D810 LNO38568PH DIODE LED 10801 37410020635 11 C MICRO COMPUTER Ee ee 02 MNISSISTA I C RESET VARIABLE RESISTOR S JTRANSISTOR S VR201 EUWMHXOO1BI5 V R VOLUME CONTROL of free v BALANCE Q401 402 2SA1123RSTTA TRANSISTOR A VR301 302 EVJYAIFA2C15 V R BASS TREBLE CONTROL Q451 452 2SC2631RSTTA TRANSISTOR VR451 452 EVNDKAAOOBI3 V R ICQ ADJ THERMISTOR S 0453 454 2503311 0 TRANSISTOR TH201 202 ERTD22HL104T THERMISTOR 0455 456 2SA1309A R TRANSISTOR 0457 458 129C2631RSTTA TRANSISTOR TH451 452 ERTD22GL251T THERMISTOR 0459 460 25 1123 5 TRANSISTOR COMPONENT COMBINATION S 0461 462 29K20130Y TRANSISTOR 0463 464 128J3130Y TRANSISTOR 801 RCDHC 237 REMO
33. tive speaker connection wires are shorted or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used ACCESSORIES e AC power supply cord lt RJA0019 1K gt EG lt SJA193 gt EB eBatteries lt RO3 gt The configuration of the AC power supply cord differs according to area Power supply voltage AC 230 V AC 240 V If 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 operate unless the power is first turned off and then on again e Remote control transmitter RAK SUSO1W aN FUNCTION OF CONTROLS 2 3 STEREO INTEGRATED 1 Power switch POWER 2 Operation indicators AMPLIFIER OPERATION MONITOR These indicators illuminate to indicate the operating condi tion of this unit VOLTAGE CONTROL When the power is switched ON this indicator illuminates when the unit is in the operating condition CURRENT DRIVE When the power is switched ON this indicator illuminates after about 4 seconds when the unit is in the operating condi tion If an abnormal condition in the circuitry is detected such as DC voltage appearing in the output or a short circuit of the positive and negative wires from the speaker ter minals the pro
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