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Service Manual 1` I DC

1. D i io zt i LOADING MOTOR Ore zi i EY 72 ZC VOLTAGES 45 F UCTUAT LON 39 WIRING DIAGRAM PER i SMS e 45 a TUNER AMP PWB je Q1006 8 Et 4 C1068 221 L GNO M CN105 w 5 18 kuo 2187 11100 5 61080 P gt 1 AD4B10CO760A OPEN CLOSE OPEN CLOSE SWITCH PWB PICK UP FRONT PW B 1040 34 Rings Z 7 RSE 2 1002 94V 0 38 t CD MECHANISM FOCUS COIL eS CC TRACKING COIL my 5 5j gt 5 Et postes pM 0 PERSA 1 40 41 SCHEMATIC DIAGRAM FRONT OPERATION 04299 pen CD21 v 3 3 112 g FER z 3 33 55 LIE i QU 3 J 55 FROM aro 338 E23 3 9 i H RAZA 49 495 5242147 I aarti i 24 ata P E 1 22415 wo
2. RAN R 54202 MI neat 10 0 15422 346125 x w E SIR Is 1 ge iii 1 N Ig 5 00 E 5 5 2 3 i 5 c Y 2 5 z B 2 E H 15 42 43 TUNER AMP PWB 04299 FRONT PWB 1002 94 0 PWB 14D4810C07548 O 1 401 3 LAMP TUNER AMP CN105 04208 CN104 04207 5 04206 EU h 002 94 0 95 9 28 1AD4B10C0754C N CLOSE z 3 W CN412 2 TUNER AMP PWB w DA d E m 2 CN205 CD OPEN CLOSE SWITCH PWB NANA Is ST FETS E083 b 2 b ios fmm 2 CENIE zo 24 i sA ust CG VEO we ZAJ oem EIER wz toz JE s ZA ROC vie MO Ou dii 3 EWY ST 375 er open 22 z Cer 8 1 7 m MEO LPR EE a 8 i i i i c k J 3 Do T 4 2 van 1 A 3 Em 8 8 5 uus sores EM LOD 2 120 RF cy 55 TEE Q JES EIAS E CEN S 7 SN T 5 a a g ME 8 Z i R Pree 3 9s i s
3. EY DOLBY DUBBING SPEED SWITCH PW B CN301 CN302 cD PWB CN amp 20 CN 2I CN245 FRONT PWB TAPE DECK PWB 107 FRONT PWB CN244 3 2 33 SCHEMATIC DIAGRAM TAPE DECK EAC ev 5 CN301 awiz z ii 1 anunco eee U L 2 Desa pe 7 1 274 ant ore tam 9 oro Lo 5 2 9 3 5 4 0 56 as at i 5 4 ag 2s 2 9 201048 1 E s an as i sii ji FRZ 15 E 19 9 o iic u pans s 2 qns dus nona jut u B i 15 1 62 1 62 w fas at h i je ase as x 9 e 1 ER 8 1 5 1 ag E as a as as s n i 6 e nie rea Z 5 l a fea fas FE as as 1 i 19 as 3 as gt m 5 aa toe roe an 3 a me aa V 21 z i Z E 2 E LU mi x DECK A HEAD cm R cH 34 35 WIRING DIAGRAM TAPE DECK TUNER AMP OWB CN415 CN414
4. x EIL IDEE ES H LE 38 89 Bit VE Ui 24 79 1 ae am 5 10K 921611415 2 9 1 9 Oh gl PRODUCT SAFETY NOTICE 23 5 2 5 835555512 041070701 Each precaution in this manual should be followed during servicing 2225250588 25351551154 REE i x 3 p E 7 04108 GMAGI Components identified with the symboi N in the parts list and the schemat CNAIS ZNALI 04113 01 11415 OOOO diagram designate components in which safety can be of special significance gt Na E er NI CNata 6960 09 When replacing a component identified use only the replacement parts EE E 22 z 2 designated or parts with the same ratings of resistance wattage or voltage that PE P aredesignated in the parts list in this manual 30 WIRING DIAGRAM 8 dj A POWER TRANSFORMER R SECONDARY PWB 5 T4001 5 AM LCCP ANTENNA ANTENNA SPEAKER L CH NA ace R CH L CH ie ae i ATS 59 VIDEO PHONO 00 85 4 E 5 BEE ELM Ed hs iB gt A POWER TRANSFORMER EFR QD PRIMARY PWB u EEJ 57 PU d AC fons E 13 35
5. TAPE DECK PWB ei 7 4 7 1010 ER domm o EA lt a ma Le o a a a 0 lt we ao GO 85 86 YS ir SLM Am Who dr PAYA ZA Sl A 2 EE oy i D 9 3 1 12 QS 4 3 Nes lt 4 GADY CCP IIS u The 3 E ae Lee olei ah gt e 2 Jj ae a He i O F9 ZLE uo ODLE 1 Bp 6052 0 08 Ferca E 8 FOE i A m 1 2 ies ere ae LENO SZ POBEJ 2 50153 COR tn oe 1 ET QUOC AS Void A C00 ELEM ee c 6 CN372 TAPE MECHANISM TAPE DECK J STOP SWITCH PWB n L CH R CH PLAY HEAD TAPE A E HEAD TAPE B L CH R CH RIP HEAD 87 36 SCHEMATIC DIAGRAM CD 59 lt E 3 0551 E 151 521 521 54 55 SYSTEM ODE fore or EFPEBIZDETI iai 2 Ea ave YCH A H sk M i M 1 lis 2 Fuerat d Ho
6. q 2 9 ios 4 i NT dew K wb e 2n deo 4l orton EC E 1 Ba Y SS 3 2 d lt SEA EN d i ix p z CN411 CN204 CD PWB 45 44 IC DESCRIPTION 1 241 TC9309F 112 DIGITAL TUNING SYSTEM INTRO REPEAT RANDOM l la g 2 3a g 4a g 5 a g 7a g em _ CI TL IC MW AM LW PM 24 M M owe LW mw AM PM 1a INTRO INTRO SCAN FM MW LW BAND ST STEREO AM PM CLOCK AM BAND PIN No PORT REMAIN CD REMAIN mark 31 32 33 34 28 REPEAT REPEAT REPEAT mark KO K1 K2 K3 27 ib ib la g 23 55 108 05 PLAY DOWN UP 35 26 1g 19 1 STOP T0 25 ie 1d PAUSE R SKIP F SKIP 24 20 RANDOM 24 RANDOM RANDOM mark ei gt A c w 38 gt x 2a g 23 55 108 05 C ADJ REPEAT REMAIN m 2 g e sn 17 2c 2d OPEN T 1 T INTRO AUX 37 20 2 COLON of clock CLOSE T2 19 3g 23 55 108 05 18 3c 38 516 12 ZG COLON of FM band 2 123 39 9 oo el 1 513 9 4d s2 8 4b af 24 12 40 511 7 5 5 107 05 es 10 6 TRACK MHz TRACK TRACK mark 2 5 59 5 CH kHz MHz MHz of FM band To BAND FUNC 8 4 6a kHz kHz of MW AM LW OUT 7 3 6g 6e CH CHANNEL mark 56 2 6c 6d 6a
7. Crystal oscillator connecting terminals y 9 1 2 OUTPUT CIRCUIT AUDIO OUTPUT EHROR POINTER CORRECTION CIRCUIT CORRECTION SYSTEM ALU SERVO STATUS SIGNAL GENERATING CIRCUIT FOCUS TRACKING SEHVO TRACKING SEARCII ADDRESS CIRCUIT CONTROL Command and data sending receiving input output terminal Schmitt input o O CORRECTION o 58 ur 9 P SUBCODE CONTROL DATA BUS SYSTEM TIMING Command and dat sending receiving chip enable signal input terminal DEMO The bus line becomes active at L level DULATION INTERFACE GENERATOR Shit input PTT 5 1 15 18 18 19 2 21 22 2 o 4M clock output terminal 4 2336MHz EM Reset input terminal The internal system is reset at L level With pull up resistor Subcode Q data control bit updata inhibiting signal input terminal Emphasis copy channel is inhibited at H level information Test terminal Normally keep at H level or open With pull up resistor Defect detection signal output terminal V per When defect is detected Normally HiZ HiZ Hiinpedance Tracking gain adjusting analog switch output terminals Vae or HIZ Subcode P W output terminals Subcode W data readout clock input terminal Lock status output terminal If a sync pattern under EFM signal cannot be detected for 17ms continuously by runaway detection
8. B R CH L CH VR304 PLAY GAIN p A khla ih RECIPLAY GAIN R CH Coma a VR302 VR301 TAPE OUT R CH L CH R CH E L CH TAPE A PLAY GAIN CEJ VR308 VR307 R CH L CH BIAS Adjustment value Adjustment item a Playback output adjustment Testtape DOLBY Measuring Input Output Adjustment Pe INR SW Instrument connection connection location TAPE A SVR301 OFF AC voltmeter TCC 130 Dolby tape TAPE OUT CN373 580 mV SVR304 SVR305 SVR306 SVR307 0 1 dB at SVR308 1 kHz and 10 kHz a Playback output adjustment c Recording Playback frequency response adjustment 1 TAPE A DOLBY NR switch OFF Play the test tape and adjust SVR301 L CH and SVR302 Input signal 44 dB 1 kHz 10 kHz R CH so that playback output becomes 580mV Tape to be used NORMAL AC 224 etc 2 TAPE B 1 Introduce input signals to the VIDEO terminals Play the test tape and adjust SVR303 L CH and SVR304 2 With the unit in the REC mode R CH so that playback output becomes S80mV Record these input signals 1 kHz 10 kHz 1 kHz gt SVR302 TAPE B SVR303 AC voltmeter AF oscillator b Recording Playback gain adjustment AC 224 Normal TAPE OUT CN373 c Recording Playback frequency response adjustment AC 224 Normal AC voltmeter AF oscillator TAPE
9. IC LA1831 N TUNER P W BOARD ASSY IC LA4705 Ref No PartNo Description IC TC40528P 71 ASSY PWB TUNER AMP IC BU40528 FILTER LC FM IC MC14052BCP POLYPRO 470P J 100V VHF COIL I F FILTER RED FM I F FILTER RED FM FILTER 450 KHZ FILTER XTAL SOCKET 2P TERMINAL ANTENA 2P K amp K PLUG 5P PLUG 5P SOCKET 4P SOCKET 5P PLUG 7P PLUG 10P PLUG 5P SOCKET SP 50 9 SOCKET PHONO VIDEO SOCKET 5P TERMINAL SPEAKER ASSY WIRE ASSY WIRE ASSY WIRE SOCKET 5P TRIMMER 11 DIODE SVC211 B DIODE SVC211 B 01005 1 DIODE 155133 DIODE 155176 INDUCTOR 8 2U K TRANSFORMER RF ANT TRANSFORMER RF AM OSC LUG PROTECTOR IC 1 0A 50V TR 2SC536 G AUD SPA TR 2SC536 G AUD SPA TR 2SC536 G AUD SPA TR 2SC536 G AUD SPA TR 2SA608 F SPA TR 2SA608 F SPA TR 2501668 0 TR 2SD1668 R TR 2501668 5 TR 2SB698 F TR 2SC536 G AUD SPA TR 2SC536 G AUD SPA TR 2SC536 G AUD SPA TR 2501682 5 TR 2SD1682 R TR 2501682 TR 2501682 5 TR 2SD1682 R TR 2501682 TR 2501682 5 TR 2SD1682 R TR 2501682 16 PARTS LIST Description 2SA608 F SPA TR 2SC536 G AUD SPA TR 2501682 5 TR 2SD1682 R TR 2SD1682 T TR DTC114TS TR BA1A4Z TR RN1211 TR DTA144ES TR 2SA1345 TR RN2204 TR DTC114TS TR 2SC3860 TR RN1211 TR 2SC536 G AUD SPA TR 2SC536 G AUD SPA TR 2501012 6 5 TR 2SC536 G AUD SPA TR 2SD1012 G SPA TR 2SC
10. SCR S TPG BIN 2 3X6MM TAPE MECHANISM LEFT SPRING PLATE RECORD TAPE MECHANISM BUTTON REMOTE CONTROL RB X850 BATTERY COVER REMOTE CONTRO LABEL STYLUS ANTENNA LEAD OO O N 44 EXPLODED VIEW CABINET amp CHASSIS PARTS LIST Pano 411 028 2905 DIODE 6 01 DIODE 155133 DIODE 155176 VARACTOR DI 5 3215 2 VARACTOR DI SVC321SPA C 2 DIODE 6 01 02451 02453 DIODE 155133 DIODE 155176 DIODE DSF10C D4102 D4105 ZENER DIODE GZA13Y DIODE 6 01 04107 04108 DIODE 155133 DIODE 155176 ZENER DIODE GZA13Y ZENER DIODE GZA6 22 DIODE 01 DIODE 155133 DIODE 155176 ZENER DIODE GZA8 2Z DIODE IN5402 DIODE IN5402 DIODE IN5402 DIODE IN5402 ZENER DIODE GZA5 6Y HEAT SINK HEAT SINK IC TA8176SN Description SCR S TPG PAN 2X4MM TAPE MECHANISM BRACKET SCR S TPG BIN 3X10MM DOLBY DUBBING SPEED PWB SPECIAL SCREW 3X10MM WITH WASHER DOLBY DUBBING SPEED PWB SCR S TPG BIN 3X10MM CASSETTE GEAR SCR S TPG BIN 3X10MM CD OPEN CLOSE SWITCH PWB SPECIAL WASHER FIBER 3X10X0 5MM TAPE MECHANISM 411 021 3503 005 2307 021 3503 021 3503 011 5903 ELECTRICAL PARTS Description TRANSFORMER POWER POWER CORD AC POWER CORD AC FUSE 250V 0 8A FU401 LUG CD PWB LUG POWER TRANSFORMER LUG BOTTOM CABINET LUG C2999
11. amp CHASSIS 3 PARTS LIST PRODUCT SAFETY NOTICE Each precaution in this manual should be followed during servicing Components identified with the IEC symbol A in the parts list and the schematic diagram designate components in which safety can be of special significance When replacing a component identified use only the replacement parts designated or parts with the same ratings of resistance wattage or voltage that are designated in the parts list in this manual Leakage current or resistance measurements must be made to determine that exposed parts are acceptably insulated from the supply circuit before returning the product to the customer CAUTION Regular type resistors and capacitors are not listed To know those values refer to the schematic diagram PACKING amp ACCESSORIES CARTON CASE SET CUSHION TOP CUSHION BOTTOM POLY SHEET 1650X550MM INSTRUCTION MANUAL BRACKET E TAPE MECHANISM UPPER BUTTON FUNCTION BUTTON POWER BUTTON TIME REPEAT PRESET UP MEMORY BAND BUTTON SKIP SEARCH DOWN UP BUTTON RANDOM INTRO BUTTON PLAY PAUSE STOP BUTTON BASSXPANDER FIXER LEAD FIX LABEL SAFETY LASER CLASS CABINET amp CHASSIS LABEL SAFETY LASER PANEL SIDE SIDE L PANEL SIDE SIDE R FIXING PARTS ASSY PANEL REAR rena mee 1 ASSY CABINET BOTTOM DEC WINDOW CD TRAY 614 270 0938 SPECIAL SCREW 3 9 SIDE PANEL FIXER AC POWER CORD HOLDER MECHANISM CD RIGHT 6
12. 85 KHZ INDUCTOR 1M J MX COIL TRAP 85 KHZ MX COIL TRAP 85 KHZ TR 2SC3860 TR DTC114TS TR RN1211 TR BA1A4Z TR 2SC536 G AUD SPA TR 2SC3330 U TR 2SC1740S S TR 2SC1740S R TR 2SC2458 GR TR 2SA608 F SPA TR 2SA608 G SPA TR 2549335 5 TR 2SA933S R TR 2SA1317 U TR 2SA1048 GR TR 2SC536 G AUD SPA TR 25 3330 TR 2SC1740S S TR 2SC1740S R TR 2SC2458 GR TR 2SA608 F SPA TR 2SA608 G SPA TR 2SA933S S TR 2SA933S R TR 2SA1317 U TR 2SA1048 GR ES PARTS LIST POEWR TRANSFORMER SECONDARY P W BOARD ASSY POEWR TRANSFORMER PRIMARY P W BOARD ASSY Part No 614 267 1351 A645 006 4760 4645 006 4760 44614 017 8203 A614 017 8203 Description 2SA608 F SPA 2SA608 G SPA 2SA933S S 2SA933S R 2SA1317 U 2SA1048 GR 2SC536 G AUD NP 25 3331 0 25 3495 2SC536 G AUD NP 28C3331 U 2SC536 G AUD SPA 25 3330 0 25 17405 5 2SC1740S R 2SC2458 GR 2SC536 G AUD SPA 25 3330 0 25 17405 5 2SC1740S R 2SC2458 GR 2SC536 G AUD SPA 25 3330 0 25 17405 5 2SC1740S R 2SC2458 GR 2SC536 G AUD SPA 25 3330 0 25 17405 5 2SC1740S R 2SC2458 GR 25014685 5 2501012 6 5 25 2878 25014685 5 25 2878 2S01012 G SPA FUSIBLE RES 22 J 1 4M SWITCH SLIDE RECORD PLAY VR SEMI 20K N VR SEML 20K VR SEMI 20K VR SEMI 20K VR SEMI 10K VR SEMI 10K N VR SEMI 200K VR SEMI 200
13. AM STEP CHANNEL Switch 9 kHz TUNING FM 87 5 108 0 MHz 50 kHz step AM 531 1 602 kHz 9 kHz step FM ANTENNA 75 ohm AM LOOP ANTENNA CN202 EJ L2151 AM ANT CT252 AM ANT gt 12152 205 Naz AM OSC A J4461 82801 R CH TP207 TP206 GND 14465 Ror LL CH c2702 TP209 GND Modulation 1 kHz Dev 22 5 kHz a CHECKING THE FM BAND FM antenna Dummy 75 ohm unbalance Adjusting is Circuit SG Frequency Position of tuning dial Adjustment Oscilloscope or ee DC voltmeter DC voltmeter less than ee Max nosa coverage Connect to FM Antenna Terminal Connect to VTVM Tracking Speaker output CHECKING THE AM BAND SG MODULATION 1 000Hz 30 IRE LOOP ANTENNA Adjusting ioe Circuit SG Frequency Position of tuning dial Adjustment Oscilloscope or DC voltmeter re 12152 1 15 1 25V DC voltmeter to less than coverage TP 205 H TP 206 G 1602 kHz High end Razi Connect AM SG Connect to VTVM 612kHz 612 kHz r In CD PLAYER MECHANISM ADJUSTMENTS a INSTALLING THE DISC TRAY 1 Join together the gear 315 and chassis holes 2 Attach the gear 313 rib as indicated the diagram 3 Fit the disc tray into the grooves of slide 325 and slide 326 4 Fit together the gear rib of the disc tray and the teeth in t
14. LEVER RECORD BUTTON LEVER PLAY BUTTON LEVER REW BUTTON LEVER FWD BUTTON LEVER STOP EJECT BUTTON LEVER PAUSE BUTTON SPRING WIRE PAUSE CONTROL LEVER PAUSE SPRING COIL PAUSE LEVER 8055 PAUSE STOPPER LEVER UN RECORDING SENSOR SPRING WIRE BUTTON LEVER SPRING WIRE BUTTON LEVER GEAR F FWD SPRING PLATE CASSETTE HOLDER SPECIAL SCREW C TAPPING SCREW 2X4MM 21 EXPLODED VIEW CD MECHANISM LOADING 303 EN TT 25 Tm W e WW 775 22 PARTS LIST CD MECHANISM PM DADSS12 ww panno 411 162 1901 614 614 614 614 614 614 411 226 233 259 262 237 255 021 6885 0227 8481 8904 7017 2605 3107 228 237 047 614 614 412 5848 7208 3904 614 411 237 020 7079 9902 614 411 237 021 7062 3107 614 614 614 614 412 614 614 411 237 237 237 237 047 237 255 044 7178 7161 7048 7055 3904 6973 2575 7502 411 020 9803 237 255 237 255 118 7192 3954 7185 3947 5927 237 255 022 7215 2612 7807 238 265 7382 1599 247 216 238 044 5683 9841 0413 7502 237 255 032 248 6980 2582 0208 2315 Description SCR S TPG PAN PCS 2X3MM PLATE FIX PLATE MAGNET FIX PLATE MAGNET FIX MAGNET CHUCK MAGNET CHUCK MOUNT M CHUCK MOUNTING MOUNT M CHUCK MOUNTING SCR S TPG BIN 2 6X8MM MOUNT M FIX ASSY PULLEY
15. MAIN 412 026 SPECIAL SCREW MOTOR 614 126 CUSHION MOTOR RUBBER 412 026 SPECIAL SCREW C TAPPING SCREW 2X4MM 614 126 CUSHION ANTI VIBRATION FELT MAT 614 122 BRACKET MOTOR 412 031 SPECIAL SCREW C TAPPING SCREW 2X6MM 614 129 BOSS COLLAR B 614 140 LEVER PLAY KICK LEVER B 412 026 SPECIAL SCREW C TAPPING SCREW 2X4MM 412 026 SPECIAL SCREW C TAPPING SCREW 2X4MM 614 250 ASSY MOTOR WITH PULLEY 614 139 LEVER PLAY KICK LEVER A 614 151 SPRING COIL PACK KICK LEVER 412 005 SPECIAL SCREW PACK KICK LEVER COLLAR 614 209 SWITCH LEAF TAPE SELECT 412 023 SPECIAL SCREW TAPPING SCREW 2X5MM 614 261 ASSY WIRE 4P PLAY HEAD 614 261 ASSY WIRE 7P RECORD PLAY ERASE HEAD 614 261 ASSY WIRE 5P TAPE MECHANISM 261 ASSY WIRE 3P TAPE SELECT SWITCH CRO2 SPECIAL SCREM HEAD AZIMUTH SCREM 2X7MM SPRING COIL HEAD AZIMUTH SPRING WIRE HEAD PANEL BRACKET TAPE GUIDE TAPE GUIDE BRACKET HEAD HEAD PANEL SLIDE HEAD PANEL SLIDE HEAD PANEL SPECIAL SCREW 2X6MM SPECIAL SCREM CUP SCREW 2X7 5MM MAGNETIC HEAD ERASING SPRING COIL ERASING HEAD LEVER SENSING SPRING WIRE CONTROLLER SPRING PLATE GEAR PLATE LEVER ASSY GEAR PLATE ASSY SPECIAL WASHER PW CUT 1 45X3 8X0 5MM ASSY PINCHROLLER SUB CHASSIS ASSY SWITCH MOTOR POWER BOSS RECORD PLAY STOPPER SLIDE EJECT REEL ASSY SUPPLY SPRING COMP BACK TENSION REEL ASSY TAKE UP LEVER SENSOR SLIDE SWITCH ACTUATOR LEVER EJECT KICK SLIDE PUSH BUTTON ACTUATOR
16. Sw LOGIC In Out Control 2 N H OUT Filter OUT MIX OUT REC FIR Sw GND iso on PIN CONNECTION CONT CONT ROL ROL OUT OUT 1 4 ING 4 3 IN 5 our 2 Out In iC BLOCK DIAGRAM CD FRONT SECTION 1 421 TC9153AP ELECTRONIC VOLUME 1C103 4PD6379 D A CONVERTER Yoo vss INH TECH m am AUTO Way SHIFT Tra cx SHIFT REGISTER INITIALIZE i CONSTANT CURRENT CIRCUIT IC106 LB1641 CD LOADING MOTOR DRIVER 1C422 BA6125 LED LEVEL INDICATOR 2 ed imr Input Logie Circuit 01 02 03 04 GND 05 Amp IN Yeo Output 29 SCHEMATIC DIAGRAM TUNER AMP BLZ cR MEE RR 5 ogg 600050655568 222 8295 21041 are SR c21 p sg 5525 aka 1 SZA PATIER CONO 3197 2126 FES 18 Wi Se 1 ky E 55 R lz3 fS 59 8 3 1 o i S 8 8 5 12151 9 2 gt 7 200 MP 900 E h i AM LOOP os i TM at UE 5 aR S i LH z 5 3 E VIDEQ PHONG S IST suo 18 z H Za Ss e HIE MEME 3 WILLE
17. termianl LO OFF 3 state output uz FocusSec Normal Play etc Focus actuator driving signal output terminal in the forcus gain adjustin mode Focus actuator driving signal output terminal in the forcus search mode FORST H Lens gets tor away trom 3 state output 3 state output Other than focus adjustment as Focus again adjusting analog switch output terminals o d o Focus again adjusting analog switch output terminals o LLL Focus error signal input tema 1 Tracking error signal input sample holding analog switch input terminal EEIUE S c NN RN VREF when the tracking servo is OFF 56 seo i ue beam si we EN F 1 T analog sound temnal ss osc o contol FM sgnal pone sonal mentor output terma Jeg 50 IC DESCRIPTION w M e o Sep 95 450 KM s one e PDCNT HEHEHE AIR K olo gt A mia FUNCTIONA Specified period L DESCRIPTION LPF amplifier inverting input terminal for PLL LPF amplifier output terminal for PLL VCO filter terminal Test terminal Digital ground te
18. 14 270 0938 SPECIAL SCREW 3X9MM TURNTABLE HOLDER MECHANISM CD LEFT MOUNTING BRACKET E 411 027 1701 SCR S TPG BIN 3X10MM REAR PANEL JOINT FRONT PANEL ASSY LID CASSETTE 411 020 8905 SCR S TPG BRZ FLG 3X10MM FRONT PANEL TAPE DECK B ASSY LID CASSETTE 411 021 6405 SCR S TPG BIN 3X8MM TAPE DECK A TUNER AMP PWB KNOB ROTARY VOLUME 027 3101 SCR S TPG BIN 3X8MM CD PWB KNOB SLIDE GRAPHIC EQUALIZER 001 4209 SCR S TPG BIN 4X8MM POWER TRANSFORMER ASSY PANEL FRONT BUTTON OPEN CLOSE 021 6405 SCR S TPG BIN 3X8MM CD PWB BRACKET GEAR ASSY CASSETTE LID SPRING WIRE TAPE DECK OPEN 021 6405 SCR S TPG BIN 3X8MM BUTTON RECORD TAPE B CD MECHANISM BRACKET BUTTON PLAY TAPE B 021 6405 SCR S TPG BIN 3X8MM BUTTON REW TUNER AMP SOCKET BUTTON F FWD TAPE B 021 6405 SCR 5 126 BIN 3X8MM BUTTON STOP EJECT TAPE B BOTTOM CABINET LUG MTG BUTTON PAUSE TAPE B 021 3503 SCR S TPG BIN 3X10MM FRONT PWB BUTTON PLAY BUTTON REW TAPE A 021 6405 SCR S TPG BIN 3X8MM TAPE DECK PWB BUTTON F FWD TAPE A BUTTON STOP EJECT TAPE A 021 3503 SCR S TPG BIN 3X10MM TAPE MECHANISM BUTTON PAUSE TAPE A BUTTON DOLBY DUBBING SPEED 028 2905 SCR S TPG PAN 2X4MM TAPE MECHANISM BRACKET E TAPE MECHANISM LOWER 028 2905 SCR S TPG PAN 2X4MM MOUNTING BRACKET E RECORD PLAY CHANGE TAPE MECHANISM BUTTON 028 2905 SCR S TPG PAN 2X4MM BRACKET E TAPE MECHANISM BRACKET 156 2105
19. 536 G AUD SPA TR 2SC536 G AUD SPA TR DTC144ES TR BA1L4M TR RN1204 TR 2SC536 G AUD SPA OXIDE MT 1K JA 1W RESISTOR 1 2K J 1 2W RESISTOR 390 J 1 2W FUSIBLE RES 3 3 J 1 4W FUSIBLE RES 3 3 J 1 4M FUSIBLE RES 6 8 J 1 4W FUSIBLE RES 2 2 J 1 4W FUSIBLE RES 2 2 J 1 4W RESISTOR 100 J 1 2W FUSIBLE RES 2 2 J 1 4W FUSIBLE RES 2 2 J 1 4W RESISTOR 100 J 1 2W SWITCH SLIDE AM CHANNEL STEP RESONATOR HOLDER HEAT SINK L REF NO 91 HOLDER HEAT SINK R REF NO 92 SCR S TPG PAN FLG 3X8MM REF NO 93 SCR S TPG PAN FLG 3X8 MM SCR S TPG BIN 3X8MM HEAT SINK TRANSISTOR SCR S TPG BIN 3X8MM MOTOR TRANSISTOR SCR S TPG BIN 3X8MM POWER TRANSISTOR SCR S TPG BRZ FLG 2 6X10MM POWER IC SCR S TPG BIN 3X8MM HEAT SINK L R TAPE DECK P W BOARD ASSY net na ASSY PWB TAPE DECK POLYESTER 0 018U J 50V POLYESTER 1500 K 50V PLUG 9P PLUG 5P PLUG 5P PLUG 3P SOCKET 4P SOCKET 4P SOCKET 2P SOCKET 2P PLUG 4P PLUG 7P PLUG 3P DIODE GMA01 D3101 D3107 DIODE 155133 DIODE 155176 DIODE 6 01 03109 03114 DIODE 155133 DIODE 1SS176 DIODE DS442X ZENER DIODE MTZ9 1B ZENER DIODE GZS9 1Y IC HA12136AT IC HA12136A IC LA3246 MLC4066B IC UPD4066BC BU4066B IC TC4066BP IC CXA1298AP TRANSFORMER OSC 85 KHZ FILTER LC MPX 85 KHZ FILTER LC MPX 85 KHZ INDUCTOR 1M J MX COIL TRAP 85 KHZ MX COIL TRAP
20. AYER MECHANISM ADJUSTMENTS CESE LASER BEAM SAFETY PRECAUTIONS 1 CD PLAYER ADJUSTMENTS 11 REMOVAL AND INSTALLATION 2 EXPLODED VIEW 13 TAPE DECK ADJUSTMENTS 3 PARTS UST 14 AMPLIFIER ADJUSTMENTS 5 IC BLOCK DIAGRAM 27 REPLACEMENT OF STYLUS 6 SCHEMATIC DIAGRAM 30 SCHEMATIC amp WIRING DIAGRAM TURNTABLE 6 WIRING DIAGRAM 32 TUNER ADJUSTMENTS 7 DESCRIPTIONS 46 LASER BEAM SAFETY PRECAUTIONS tJ Pick up that emits a laser beam is used in this CD player CAUTION USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE LASER OUTPUT 0 6 mW Max CW WAVELENGTH CAUTION INVISIBLE LASER RADIATION WHEN OPEN AND _INTERLOCKS DEFEATED AVOID EXPOSURE TO BEAM ADVARSEL USYNLIG LASER STR LING VED ABNING NAR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION UNDGA UDS ETTELSE VARNING OSYNLIG LASER STR LNING NAR DENNA DEL AR PPNAD OCH SPARR AR URKOPPLAD STRALEN AR FARLIG VORSICHT UNSICHTBARE LASERSTRAHLUNG TRITT AUS WENN DECKEL GE FFNET UND WENN SICHERHEITSVERRIEGELUNG UBERBRUCKT IST NICHT DEM STRAHL AUSSETZEN VARO Avattaessa ja Suojalukitus ohitettaessa olet alttiina nakymatt maltie lasers teilylle Ala katso at
21. CHUCK SLIDE BASE UP DOWN SPECIAL SCREW LOADING GEAR FIX GEAR LOADING GEAR SCR S TPG BRZ FLG 3X8MM GEAR FIX GEAR LOADING CAM GEAR SCR S TPG BIN 2 6X8MM PULLEY FIX BELT SQUARE LOADING PULLEY LOADING RELAY PULLEY GEAR LOADING RETARD GEAR 1 GEAR LOADING RETARD GEAR 2 SPECIAL SCREW TRAY GUIDE FIX CHASSIS LOADING CHASSIS CHASSIS LOADING CHASSIS SCR PAN SW 2X5MM LOADING MOTOR FIX SCR S TPG BRZ FLG 3X6MM CHASSIS SUB FIX SLIDE TRAY GUIDE L SLIDE TRAY GUIDE L SLIDE TRAY GUIDE R SLIDE TRAY GUIDE R STEEL BALL TRAY GUIDE R LOCK TABLE LOADING TRAY TABLE LOADING TRAY SCR S TPG PAN 2X6MM SWITCH PWB FIX ASSY MOTOR LOADING MOTOR ASSY WIRE 5P SWITCH PWB ASSY CHASSIS BASE MECHA TURNTABLE TURNTABLE SCR PAN SW 2X5MM SPINDLE MOTOR CHASSIS BASE MECHANISM CHASSIS BASE MECHANISM SPECIAL WASHER COMMUTATE MOTOR SPINDLE eee J 411 044 614 237 614 614 412 237 277 045 614 614 614 645 237 238 239 007 614 614 614 412 614 237 237 237 047 265 614 247 614 237 614 255 411 021 412 044 614 238 SCR PAN SW 2X8MM SLED MOTOR FIX CUSHION RUBBER BASE MECHANISM FLOATING SHAFT PICK UP RAIL SHAFT PICK UP RAIL SPECIAL SCREW PICK RACK GEAR FIX GEAR PICK RACK GEAR SPRING COMP PICK RACK GEAR PICKUP LASER PICK UP FLEXIBLE FLAT CABLE PICK UP GEAR SLED RETARD GEAR 1 GEAR SLEO RETARD GEAR 2 GEAR SLED GEAR SPECIAL SCREW SLED GEAR ASSY WIRE 6P BASE M
22. ECHANISM PCB SPRING COMP BASE MECHANISM FLOATING CHASSIS SUB BASE MECHANISM MOUNTING CHASSIS SUB BASE MECHANISM MOUNTING SCR S TPG BIN 2 6X8MM BASE MECHANISM FIX SPECIAL WASHER BASE MECHANISM FIX ASSY MOTOR SLED MOTOR LOADING MOTOR P W BOARD ASSY Part No 351 614 254 0657 ASSY PCB LOADING MOTOR C599 403 121 9509 CERAMIC 0 10 2 50 Description OPEN CLOSE SWITCH P W BOARD ASSY 614 254 0640 645 006 0922 614 231 3992 614 241 9489 Description ASSY PCB OPEN CLOSE SWITCH PLUG 5P SWITCH PWB CONNECTOR SWITCH PUSH CHUCK END SWITCH SLIDE TRAY OPEN END SLED SPINDLE MOTOR P W BOARD ASSY 614 254 0664 645 006 0939 614 231 4005 223 2 ASSY PCB SLED SPINDLE MOTOR PLUG 6P MOTOR PWB CONNECTOR SWITCH LEAF LIMIT EXPLODED VIEW CD MECHANISM MAIN d NS 7 7 Acne SZEJ M Kg N EXPLODED VIEW TURNTABLE MECHANISM 571 lt gt 572 1 572 e S b 573 PARTS LIST TURNTABLE MECHANSIM PL DL670 Part No Description DUST COVER CUSHION DUST COVER 6MM E RING TURN TABLE RETAINER TURNTABLE PLATTER BELT TURN TABLE GEAR TURN TABLE RUBBER MAT TURN TABLE 3MM CS RING CLUTCH PLATE RETAINER CLUTCH PLATE UPPER TRIP PAWL CLUTCH PLATE COVER TRIP CLUTCH PLATE 4MM CS RING CAM GEAR RETAINER SPUR GEAR CAM GEAR TONE ARM ASSY CARTRIDGE NEEDLE CARTRIDGE STYLUS ST 707J TIE TONE ARM SCREW 5MM S
23. G AUD SPA TR 2SC536 G AUD SPA TR 2SA608 F SPA TR 2SC536 G AUD SPA TR 28C536 G AUD SPA TR 2SC536 G AUD SPA TR 25 17405 5 TR 2SC536 G AUD SPA TR 25 17405 5 TR 28C536 G AUD SPA FUSIBLE RES 22 J 1 4 SWITCH TACT CD SKIP SEARCH TUNER UP SWITCH TACT CD SKIP SEARCH TUNER DOWN SWITCH TACT STOP SWITCH TACT PLAY PAUSE SWITCH TACT RANDOM SWITCH TACT MODE SWITCH TACT REPEAT RESET UP SWITCH TACT MEMORY SWITCH TACT AUX SWITCH BAND SWITCH TACT INTRO SWITCH TACT CD SWITCH TACT TUNER SWITCH TACT TAPE SWITCH TACT POWER SWITCH PUSH 2P 2T BASSXPANDER SWITCH ROTARY 1P 2T VOLUME VR SLIDE 200K BX1 VR SLIDE 200K BX1 VR SLIDE 200K BX1 VR SLIDE 50K WX2 CRYSTAL 7 2 MHZ DOLBY DUBBING SPEED SWITCH P W BOARD ASSY Ref No PartNo _ Description ASSY PWB DOLBY DUBBING SPEED SWITCH SOCKET 5P CD P W BOARD ASSY retno PartNo Besen ASSY PWB CD PLUG PLUG 6P SOCKET 13P PLUG 7P PLUG 6P PLUG 4P SOCKET 5P ASSY WIRE ZENER DIODE MTZ5 1A DIODE 01 DIODE 155133 DIODE 155176 IC TA8191F 9236 UPD6379GR NJM3404AD BA6398FP 181641 FILTER CHOKE 100UH TR 2SA608 F SPA 01001 01002 TR 2SA1317 U TR 25 9335 5 2SA933S R 2SA1048 GR 2SB927 S 2SA1020 Y 2SA608 F SPA 2SA1317 U 2SA933S S 2SA933S R 2SA1048 GR 2SC536 G SPA 01005 01010 TR 25 3330 0 TR 2SC1740S S TR 2SC1740S R TR 2
24. HIPPING SCREW MOTOR FIX SPINDLE SPINDLE SHAFT WASHER TURN TABLE THRUST OIL CUP SPRING FLOATING SPONGE FLOATING CLIP USE FOR SHIPPING CHASSIS TONE ARM ELEVATOR ARM CLIP 3MM CS RING SPRING FLOATING SPONGE FLOATING SWITCH AUTO SHUT OFF SWITCH SCREW SWITCH FIX WIRE LABEL 226 Description SPRING FLOATING WASHER SPINDLE FIX WASHER SPINDLE FIX NUT SPINDLE FIX P C BOARD TURNTABLE CONNECTOR SCREW WIRE PULLEY MOTOR MOTOR LEVER CUEING SLIDE PLATE RETURN TRIP LEVER 3MM CS RING SPRING ARM LEVER SPRING SCREW AUTO RETURN ADJUSTMENT LIINK RETURN ARM LEVER SPRING CAM SLIDE PULL SPRING LEVER RETURN CAM SLIDE WASHER 3 MM E RING SHUT OFF PLATE SWITCH 3MM E RING SHUT OFF PLATE RETAINER HING PLASTIC HING ADAPTER 45 ADAPTER WELL FIX PLATE FIX PLATE FIX PLATE IRON PLATE FLOATING UPPER STOPPER SCREW PART FIX BUTTER SPEED SWITCH NOB SCREW SPEED SWITCH FIX SPEED BRACKET SWITCH BRACKET SCREW SLIDE SWITCH SPEED SELECT WIRE EVA IC BLOCK DIAGRAM TUNER AMP SECTION 1 211 81765 FM FRONT END 231 LA1831 AM FM IF amp MPX 1 402 LA4705 POWER IC52 TC4052 MULTIPLEXER DEMULTIPLEXER LOGIC LEVEL vss 7 VEE 237 IC BLOCK DIAGRAM TAPE DECK SECTION 1C370 LA3246 PRE AMP MIXING AMP SWITCHING IN2F IN R NF2 INIR NF 1C374 CXA1298AP EQUALIZER AMP 002 OUT Me Nor QUT1 Me Nor Me Nor Sw Nor High
25. K N VR SEMI 2K N ASSY PWB PGEWR TRANSFORMER PRIMARY HOLDER FUSE HOLDER FUSE TERMINAL BOARD TERMINAL BOARD FRONT P W BOARD ASSY Description ASSY PWB POWER TRANSFORMER SECONDARY SOCKET 4P PROTECTOR IC 1 0A 50V RESISTOR 0 47 J 1 2W RESISTOR 0 47 J 17 2 Description ASSY PWB FRONT FILTER COLOR LCD BACK LIGHT FILM BLUE FILTER COLOR LCD BACK LIGHT SHEET DL ELECT 0 047 Z 5 5V HOLDER LED HOLDER LED HOLDER LED HOLDER LED SOCKET 5P SOCKET 5P SOCKET 6P SOCKET 7P SOCKET 2P SOCKET 10P SOCKET 7P ASSY WIRE 5P ASSY WIRE 5P ASSY WIRE 7P ASSY WIRE 10 ASSY WIRE 7 ASSY WIRE 6P SOCKET 2P DIODE 6 01 02401 02417 DIODE 155133 DIODE GMA01 D2431 D2432 DIODE 155133 DIODE GMA01 D4201 D4205 DIODE 155133 LED SLP 190B 51 A LED SLP 190B 51 A LED SLP 190B 51 A LED SLP 1908 51 A LED SLP 1908 51 A LED SLP 190B 51 A LED SLP 290B 51 A LED SLP 290B 51 A LED SLP 290B 51 A LED SLP 290B 51 A DIODE GMA01 D4216 D4220 DIODE 155133 PHOTO DIODE SPS 420 1 IC TC9309F 112 IC TC9153AP IC BA6125 FILTER 33UH LCD LUG 1 TR 2SA608 F SPA TR 2SC536 G AUD SPA TR 2SC536 G AUD SPA TR 2SC536 G AUD SPA TR 25 2999 5 TR 2SB698 F PARTS LIST fet No faa wo TR 2SC536 G AUD SPA TR 2SA608 F SPA TR 2SA608 F SPA TR 2SC536 G AUD SPA TR 2SC536 G AUD SPA TR 2SC536 G AUD SPA TR 2S8C536 G AUD SPA TR 2SC536 G AUD SPA TR 25C536 G AUD SPA TR 2SC536
26. NCE TP1 RF CN106 TP2 FE 9 TP3 TE TP4 VC OSCILLOSCOPE TRACKING BALANCE Adjustment Measuring input Output Adjustment Adjustment value Item instrument connection connection location a Tracking TP3 TE Waveform symmetry balance Oscilloscope TP 4 VC VR101 b Checking sure that the eye Oscilloscope pattern is at the center of the waveform and that the diamond shape i clearly defined the eye pattern T Ee CD PLAYER ADJUSTMENTS c ADJUSTMENTS a Tracking balance adjustment 1 Connect an oscilloscope to TP3 TE and TP4 VC 2 Set the test disc 3 Repeatedly press the CD SKIP SEARCH button 4 PLAY PAUSE switch push ON 5 Adjust VR101 so that the oscilloscope s waveform is symmetrical as shown in the illustration 6 Switch OFF the POWER 0 gt b Checking the eye pattern 1 Switch ON the POWER 2 Connect an oscilloscope to TP1 RF and TP4 VC 3 Load the test disc 4 PLAY switch push ON 5 Check to be sure that the eye pattern is at the center of waveform and that the diamond shape is clearly defined 6 Press the STOP button 7 Switch OFF the POWER 9 4 TP3 TE OSCILLOSCOPE TP4 TP1 RF TPA VC SO XX Nd 46787474 ee 00 ACZ EXPLODED VIEW CABINET
27. OUT SE CN373 b Recording Playback gain adjustment 10 kHz i h DOLBY NR switch OFF 3 Press the REWIND button and rewind the tape to the beginning of the recording just made sce POR KE 4 Press the PLAY button Tape to be used NORMAL AC 224 etc j S Adjust SVR307 L CH and SVR308 R CH 1 Introduce input signals to the VIDEO terminals so that the 10 kHz and 1 kHz output level difference and with the unit in the REC PAUSE mode become 1 dB 2 Record the input signal 6 Repeat steps 1 to 5 3 Press the REWIND button and rewind the tape to the beginning of the recording just made b Press the PLAY button Adjust 51 8305 1 SVR306 so that the recording and playback output level difference become 1dB i Repeat steps 1 to 5 REPLACEMENT OF STYLUS After a long period off use or when an inferior sound is obtained the stylus assembly should be replaced with a new one To remove the stylus assembly pull it downwards gently To mount the new one re assemble in reverse order HEAD SHELL CARTRIDGE DL STYLUS o STYLUS 2 ST 707 STYLUS PROTECTION CARTRIDGE CONNECTOR TURN TABLE E P W B CARTRIDGE AUTO SHUT OFF SWITCH TURN TABLE MOTOR SPEED SELECT SWITCH TUNER ADJUSTMENTS Use a plastic screw driver for adjustments Speaker impedance 4 ohm Standard Output 500 mW FM MODE switch STEREO
28. SANYO FILE NO Service Manual Digital Stereo DC X850 Sound System Specifications PRODUCT CODE No 129 454 02 TURNTABLE SECTION CASSETTE DECK SECTION Type Belt drive auto return Track system 4 track 2 channels stereo Rated speed 33 1 3 45rpm Frequency response 60 Hz 14 500 Hz CrO2 tape 60 Hz 13 500 Hz Normal tape TUNER SECTION Signal to noise ratio 60 dB Dolby NR ON Reception frequency 87 5 108 MHz Wow amp Flutter 0 15 WRMS AM 531 1 602 kHz Fast forward 9 kHz step rewind time Approx 110 sec C 60 CD PLAYER SECTION GENERAL Channels 2 channels stereo Output power 20 W x 2 at 4 ohms Sampling frequency 44 1 kHz Pick u Optical 3 beam semiconductor Pac SSS OW ins Inputs VIDEO 400 mV 50k ohms 4 Laser output 0 6 mW Continuous wave max Outputs SPEAKERS ones Wave lenath 790 PHONES 8 32 ohms Power requirements 230 240 V 50 Hz Frequency response 20 Hz 20 000 Hz Wow amp Flutte Bel asurable limits Power consumption 75 PS OW Een Dimensions 350 W x 423 H x 369 D mm Weight ves 8 2 kg x Specifications subject to change without notice REFERENCE SM580639 mL LC SPECIFICATIONS TOP CD PL
29. SC2458 GR RESISTOR 18 J W VR SEMI 100K POTENTIOMETER 100K OHM RESONATOR CERAMIC 8 46MHZ JACK PHONE LAMP P W BOARD ASSY SOCKET 5P RESISTOR 100 J 1 2W SWITCH PUSH DOLBY DUBBING SPEED 76 614 267 1566 ASSY PWB LAMP 614 035 4911 SOCKET 2P 645 006 8676 LAMP PILOT 12V 150MA TAPE DECK STOP SWITCH P W BOARD Br CD OPEN CLOSE SWITCH P W BOARD ASSY 77 614 267 1573 ASSY PWB TAPE DECK STOP SWITCH CD OPEN CLOSE SWITCH 614 020 6548 SOCKET 2P CN241 614 035 4911 SOCKET 2P 614 223 9209 SOCKET 2P 2416 614 240 1002 SWITCH TACT OPEN CLOSE 645 011 5097 SWITCH STOP NC EXPLODED VIEW TAPE MECHANISM 8 1098 4 1108 56 111B PARTS LIST TAPE MECHANISM TM D12UTN SPECIAL SCREW BIND SCREW 2X3MM LUG TAPE HEAD HEAD R P PLAY 614 067 CHASSIS ASSY 412 026 SPECIAL SCREM C TAPPING SCREW 2X5MM 614 152 SPRING WIRE PAUSE LEVER A TAPE A 412 026 SPECIAL SCREM HEAD RECORD PLAY P TAPPING BING SCREW 2X5MM B TAPE B 412 026 SPECIAL SCREW CAMERA TAPPING 2X4 5MM 614 152 SPRING WIRE EJECT ACTUATOR 614 134 GEAR CAM GEAR 412 013 SPECIAL WASHER P WASHER CUT 1 2X3 8X0 3MM 614 195 SWITCH PLAY 614 152 SPRING WIRE RECORD BUTTON 614 151 SPRING COIL PLAY BUTTON 614 069 PULLEY ASSY REW F FWD 614 195 SQUARE BELT RF BELT 412 013 SPECIAL WASHER PW 2X3 5X0 3MM 614 204 FLYWHEEL ASSY 614 068 FLYWHEEL DISK ASSY 614 234 BELT SQUARE
30. WER SW diode POWER ON KEY TIMING OUTPUT WITHOUT POWER SW diode POWER OFF PHASE COMPARATOR OUTPUT ss e m o mase ou f 73 nor WITH BAND OUT diode OUTPUT port WITHOUT BAND OUT diode INPUT port 47 IC BLOCK DIAGRAM amp DESCRIPTION IC DESCRIPTION IC102 TC9236AF CD PLAYER CONTROL 16102 TC9236AF CD PLAYER CONTROL SYMBOL 110 FUNCTIONAL DESCRIPTION REMARKS TESTA Test terminal Normally keep at H level or open With pull up resistor TESTS Test terminal Normally keep at H level or open With pull up resistor mooo Internal operation mode setting input terminal With pull down resistor 59 COFS o Correction system frame periodic signal output terminal 7 35kHz ETE Subcode sync signal output terminal Subcode Q data output terminal Processor status signal output terminal Correction process judging result memory buffer capacity etc PLL CIRCUIT DATA SLICER A D CONVERTER E gt BOK Subcode Q data CRC check adjusting result output terminal The adjusting result is OK at H level Regeneration system frame periodic signal output terminal 7 35kHz SYNC SEPARATION A CIRCUIT TMAX DETECTION CIRCUIT EFN DEMODULATION CLV SERVO CIRCUIT CIRCUIT ERROR LOCATION XI Crystal oscillator connecting terminals
31. e Deck A 2 Press Tape Deck A s PLAY button 23438 TAPE OUT 8 23039 R CH E L CH 3 Adjust VR309 so that the frequency counter shows HIGH SPEED CN373 TEST POINT a reading of 3 000Hz 4 Press Tape Deck A s STOP button 5 Insert the test tape into Tape Deck B 6 Press Tape Deck B s PLAY button Checking the frequency counter shows a reading of 3 000 Hz 40 40 Hz 7 Press Tape Deck B s STOP button d High speed 5 1 Insert the test tape TCW 211 etc 1 500 Hz optional into Tape Deck A 2 Press Tape Deck A s PLAY button 3 Set to the high speed condition 4 Short circuit test points J3438 and J3439 e CHECKING THE MECHANISM TORQUES Clean the head capstan and pinch roller before making any measurement Measurement Take up torque Cassette for PLAY TW 2111A measurement F FWD REW TW 2231 O PLAY 30 60 gr cm 1 5 4 5 gr cm ss mogem VR309 TAPE SPEED SHORT FREQUENCY COUNTER 5 Checking the frequency counter reading is 3 000 Hz 6 Press Tape Deck A s STOP button 7 After the completion of the adjustment remove the short circuit between test points J3438 and J3439 Drive power cassette PLAY TW 2111A TW 2412 60 gr or more m AMPLIFIER ADJUSTMENTS Make the following adjustments after first cleaning the head and checking the adjustment of the head azimuth VR306 VR305 L CH TAPE
32. eeseen MOVAL AND INSTALLATION c eue Disconnect the power cord s plug from the electrical outlet All wiring should be returned to the original position after work is completed First have ready many the new FIXERS 614 129 2496 for replacement Arrange the lead wires so that they are not near the heat sink CABINET Remove the 2 turntable mounting screws O Remove the 12 slide panel mounting screws Q Remove the 5 rear panel mounting screws Remove the 5 front panel mounting screws b WIRING LAYOUT e Power Transformer TAPE DECK ADJUSTMENTS Fe MM C GW a PREPARATIONS FOR ADJUSTMENTS Measuring instruments tools 1 a 1 2 3 4 M Test tape 114 10 kHz TCW 211 1 500 Hz Optional MTT 111 3 000 Hz AC 224 NORMAL Oscilloscope At least 10 MHz dual channel Digital voltmeter Input impedance 1 MQ or more 4 Automatic distortion analyzer or AC voltmeter 80dB input impedance 1MQ or more AF oscillator 400 Hz 500 mV RMS Frequency counter 5 MHz or more 5 6 7 8 Frequency counter probe Screwdrivers non metalic for adjustments HEAD REPLACEMENT AND AZIMUTH ADJUSTMENT Head replacement After replacement demagnetize the heads by using a degausser Be sure to clean the heads before attempting to make a
33. f the hole a Replacing the pick up 1 Insert the pick up rails 404 into the base chassis 401 3 2 If the laches x 2 of the base chassis 401 3 are missing when the pick up rails have been installed first wipe the tips of the rails with alcohol 3 After the pick up has been replaced apply grease FLOIL G 474B to the n ERE sections The pick up P W Board pattern is shorted as shown 4 the figure so that the new pick up will not be susceptible to the effects of static 5 Set the pattern to open after the pick up has been replaced xo SHORT OPEN NOT TO TOUCH ANY OTHER PART BE SURE AT THIS TIME CD PLAYER MECHANISM ADJUSTMENTS d Replacement and lubrication of the CD mechanism do NT G 474B BASE MECHANISM 416 EM 50L SE SLIDE 311 EM 50L Note EM 50 MOLYKOTE EM 50L G 474B FLOIL OIL G 474B BOTTOM VIEW EM 50L EM 50L 3 B EM 50L EM 50L SIDE SIDE 10 CD PLAYER ADJUSTMENTS a PREPARATIONS a Measuring instruments tools and filter 1 Test disc YEDS 18 SONY or etc 2 Oscilloscope SS5711 10 MHz or dual phenomenon or Memoryscope DSS6521 Storagescope 3 Screwdrivers non metallic for adjustments b PARTS LOCATION EYE PATTERN OSCILLOSCOPE VR101 TRACKING BALA
34. g CH 10 55 1 6b 6f This is a diode jumper MEMORY MEMORY mark 7a g CH 10 This is a transistor switch 4 80 MEMORY 7a 3 79 74 Te 2 78 7c 7d 51 77 7b 7 46 IC DESCRIPTION 12241 TC9309F 112 DIGITAL TUNING SYSTEM PRT ACTI MUTE MUTE OUTPUT 42 43 VOL DN VOL UP O c OUT IC102 CD PROCESSOR OUTPUT or I O FOR CD CONTROL 47 REMOTE CONTROL INPUT 052 INTERMEDIATE FREQUENCY INPUT The intermediate frequency FUNCTION INPUT OUTPUT port ref e WITH FUNC OUT diode OUTPUT port H WITHOUT FUNC OUT diode FM 10 7MHz MW LW 450kHz is a inputted through the capacitor e epeemmesowm 3 fo rev mans ourer e eenma ourer p e kerrmneoumur J s m ojevmwmsowwr 5 o evmmeows INPUT port s o ker mmmn ouu J ve o oureur wjw w w c 5 ziola _ w BUSO 50 PU PICK UP POSITION INPUT port L INNER pore CD TRAY POSITION INPUT ports cts Loren DOOR OPN ooor oren v POWER sw H 55 POWER POWER CONTROL output port POWER ON OFF CONTROL Input port if POWER SW diode jumper is H then POWER key is invalid WITH PO
35. he center 5 Attach the disc tray as indicated in the diagram GEAR 315 b DISASSEMBLY OF THE CD PLAYER MECHANISM gt d a CD Mechanism 403 9 2 43 215 69 CD PLAYER MECHANISM ADJUSTMENTS b Replacement of the spindle motor e First prepare the new turntable 401 1 and new special 2mm 401 1 i Three Bond TURNTABLE washer 401 4 for replacement Pep The removed turntable will be deformed by the heat of 401 4 1715mm mm 2 the soldering iron and cannot be reused j e Prepare dial type calipers Pick up RAIL 1 The attached bonding material can be dissolved by using a 60W soldering iron to heat the shaft at the upper part of the turntable for about one minute 2 lt The turntable can then be removed from the shaft by very carefully applying force upward at the center of the lower surface of the turntable 3 Remove the two screws 401 2 and remove the spindle motor 401 5 4 Attach the special washer 401 4 to the spindle motor a Clean the spindle motor s shaft To clean them use a soft cloth soaked in isopropyl alcohol 6 Apply a small amount of a mixture of the Three Bond 2001 and 2015F bonding materials to the motor s shaft Install the turntable as shown in the figure Secure the turntable by pressing gently Be sure to wipe away by using a piece of cloth or similar 7 c material any bonding material coming out o
36. information this terminal is put at L level Tracking gain adjusting analog switch output terminals Vres HIZ Tracking servo loop low frequency phase compensator change over analog switch output terminal HiZ gain up when detecting shock Normally V Tracking servo loop middle high frequency phase compensator change over analog switch output terminals HiZ gain up when detecting shock Normally V per TGUH1 is used at normal regeneration and TGUH2 is used at double speed regeneration Tracking actuator kick signal output terminal Kicks in the outer circumferential direction at H level and in the inner circumferential direction at L level 48 49 DESCRIPTION OFF Feed motor FWD BWD feeding control signal output terminal Feed in the outer circumferential direction at level and in the inner 3 state Output circumferential direction at L Jevel TEST Test terminal Normally keep at H level or open With pull up resistor DMON Disc motor driving circuit gain change over analog switch output terminal 2 Disc motor CLV servo AFC signa output terminal Motor acceleration 39 DMFC H 3 state output DMOFF CLV servo OFF DMPC Disc motor CLV servo signal output terminal ave Double times reference voltage input terminal X2 1 Servo mode indicating signal output
37. ny adjustments Be sure both channels 1 and 2 are the same level Using a dual channel oscilloscope All wiring should be returned to the original position after work is completed TAPE A PLAY HEAD EN RED pi WHITE YELLOW TAPE A amp B HEAD AZIMUTH ADJUSTMENT Head adjustment Load a test tape in Tape Deck A MTT 114N etc 10 kHz for azimuth adjustment Press the PLAY gt button Use a flat tip screwdriver to turn the screw for normal azimuth adjustment so that the left and right outputs are maximized at the same phase during playback Press the STOP button Repeat procedure for Tape Deck B After completion of the adjustment use threadlock TB1401B to secure the azimuth adjustment screws Phase alignment Prepare a dual channel oscilloscope Set so that the left and right ranges of the oscilloscope are the same Play the test tape MTT 114N etc 10 kHz Adjust so that the waveforms for the left and right channels are in alignment as shown in the illustration TAPE B R P HEAD BROWN ORANGE SE R ric ET 8 WHITE BLUE E HEAD TAPE B Phase alignment BE ee TAPE DECK ADJUSTMENTS d MOTOR REPLACEMENT AND SPEED ADJUSTMENT a Motor replacement 1 See illustration b Motor speed adjustments e Make the adjustment near where the test tape finishes winding c Normal speed 1 Insert the test tape MTT 111 etc 3 000 Hz into Tap
38. rminal Audio data output terminal o o o Bit clock output terminal Normally o EE Internal clock selection terminal Digital out output terminal Double speed operation at L level Emphasis ON at H level Master clock output terminal Printed in Japan o Regenerator data read clock output terminal Internal operation mode setting input terminal Internal operation mode setting input terminal Word clock output terminal Normally 88 2kHz Channel clock output terminal Normally 44 1kHz 1 4112MHz Test terminal Normally keep at level or open Double speed monitor output terminal Emphasis ON OFF indication signal output terminal Test terminal Normally keep at H level or open 25 REMARKS Data slice control EFM signal negative output terminal Analog supply voltage terminal 5V PDO output controi terminal At L level output is made to HiZ by force Phase error signa output terminal between EFM signal and PLCK 3 state output TMAX signal output terminal HiZ at time of system clock TMAX Period TMAX Output Longer then specified period Shorter than specified period 2Vper 3 state output With pull up resistor With pull up resistor SANYO SANYO Electric Co Ltd Osaka Japan

Service Manual 1` I DC

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