Sanyo DC-X850 Page 29 Service Manual Download | Manualshive

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Summary of Contents for DC-X850

Page 1: ...90 nm 20 HZ 20 000HZ Below measurable limits DC X850 AU PRODUCT CODE No 129 454 02 CASSEITE DECK SECTION Track system Frequency response Signal to noise Tatio Wow Flutter Fast forwardi rewind lime GENERAL Output power Inputs outputs Power requirements Power consumption Dimensions Weight t 4 track 2 channels stereo 60 Hz 14 500 Hz Cr02 tape 60 Hz 13 500 Hz Normal tape 60 dB Dolby NR ON 0 15 v WRMS ...

Page 2: ...5 ICBLOCKDIAGWM 27 REPLACEMENT OFSTYLUS 6 SCHEMATIC DIAGRAM 30 SCHEMATIC WIRING DIAGRAM TURNTABLE 6 WIRING DIAGRAM 32 TUNER ADJUSTMENTS 7 IC DESCRIPTIONS 46 LASER BEAM SAFETy PRECAUTIONS Pick up that emits a laser beam is used in this CD player CAUTION USEOFCONTROLS ORADJUSTMENTS ORPERFORMANCE OFPROCEDURES OTHERTHANTHOSE SPECIFIED HEREINMAYRESULT INHAZARDOUS RADIATION EXPOSURE LASER OUTPUT 0 6 mW ...

Page 3: ... work is completed First have ready many the new FIXERS 61 4129 2496 for replacement Arrange the lead wires so that they are not near the heat sink CABINET Remove the 2 turntable mounting screws Remove the 12 slide panel mounting screws Remove the 5 rear panel mounting screws Remove the 5 front panel mounting screws b WIRING LAYOUT Power Transformer 2 ...

Page 4: ...evel Using a dual channel oscilloscope All wiring should be returned to the original position after work is completed TAPE B TAPE A E HEAD R P HEAD PLAY HEAD y i iiT YELLOW TAPE A B f EAD AZIMUTH ADJUSTMENT Head adjustment Load a test tape in Tape Deck A MTT lI 4N etc 10 kHz for azimuth adjustment Press the PLAY button Use a flat tip screwdriver to turn the screw for normal azimuth adjustment so t...

Page 5: ... 40 40 Hz Press Tape Deck B s STOP button High speed Insert the test tape TCW 2 11 etc 1 500 Hz optional 5 into Tape Deck A 6 Press Tape Deck A s PLAY button 7 Set to the high speed condition Short circuit test points J3438 and J3439 Press Tape Deck B s PLAY button El Checking the frequency counter reading is 3 000 Hz Press Tape Deck A s STOP button After the completion of the adjustment remove th...

Page 6: ...s N30mV 2 TAPE B Play the test tape and adjust SVR303 L f3 t and SVR304 R CH so that playback output becomes 580mV b Recording Playback gain adjustment DOLBY NR switch OFF Input signal 24 dB 1 kHz Tape to be used NORMAL AC 224 etc Introduce input signals to the VIDEO terrrrinals and with the unit in the REC PAUSE mode Record the input signal Press the REWIND button and rewind the tape to the begin...

Page 7: ...ith a new one To remove the stylus assembly pull it downwards gently To mount the new one re assemble in reverse order SCHEMATIC WIRING DIAGRAM TURNTABLE CARTRIDGE STYLUS STYLUS PROTECTION J LH I x 111 RL GND CARTRIDGE CONNECTOR TURN TABLE P W B I I J I AUTO SHUT OFF SWITCH TURN TABLE MOTOR L 33 RPM 3 L5RPM SPEED SELECT 0 SWITCH 6 ...

Page 8: ...l Adjustment Oscilloscope or output DC voltmeter 1 Connect to Digital 1 O 2 OV Tuning DC voltmeter 87 5 MHz Low end less than 2 coverage TP205 H TP 206 G 108 0 MHz High end 8 5V 3 Connect to FM Antenna Connect to VTVM 90 1 MHz Tracking 90 1 MHz 4 Speaker output Max Terminal 106 1 MHz 106 1 MHz CHECKING THE AM BAND SG MODULATION 1 000Hz 30 IRE LOOP ANTENNA Adjusting Connections VTVM Step Circuit SG...

Page 9: ...gear 31 3 rib as indicated in tie diagram 3 Fit the disc tray into the grooves of siide 325 and slide 326 4 Fit together the gear rib of the disc tray and the teeth in the center 5 Attach the disc tray as indicated in the diagram GEAR 31 5 r SLIDE 325 I I I b DISASSEMBLY OF THE CD PLAYER MECHANISM a CD Mechanism 8 417 y ...

Page 10: ... isopropyl alcohol 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 2 mm l Three Bond Z I 401 4 J 8mm Secure the turntable by pressing gently Be sure to wipe away by using a piece of cloth or similar material any bonding material coming out of the hole Replacing the pick up Insert the pick up rail...

Page 11: ...CD PLAYER MECHANISM ADJUSTMENTS d Replacement andiubrication of the CD mechanism EM 50L Note EM 50 G 474B G 47 4B L b BASE MECHANISM 416 SLIDE 311 MOLYKOTE EM 50L 1o ...

Page 12: ...TERN F OSCILLOSCOPE F i i la VR101 TRACKING BALANCE TP1 RF CN106 TPL vc J 1 OSCILLOSCOPE I 7TI I TRACKING BALANCE Adjustment Measuring Input output Adjustmen Item instrument connection connection location I Adjustment value Waveform symmetry A B a Tracking Oscilloscope TP3 TE balance TP4 VC VRIOI b Checking the eye Oscilloscope TP1 RF pattern TP4 VC Check be sure that the eye pattern is at the cen...

Page 13: ...own in the illustration Switch OFF the POWER TP1 RF A TP3 TE B SKIP SEARCH A B TP3 7 TE OSCILLOSCOPE TP4 Vc o I rTl F 500 s 1 I A B SKIP SEARCH A B b 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...

Page 14: ...i EXPLODED VIEW CABINET CHASSIS Y i Yol Y03 b Y133 J Y03 JY 13 ...

Page 15: ...ECK A KNOB ROTARY VOLUME KNOB SLIQE GRAPHIC EQUALIZE ASSY PANEL FRONT BUTTON OPEN CLOSE GEAR ASSY CASSETTE LID SPRING WIRE TAPE DECK OPEN BUTTON RECORD TAPE B BUTTON PLAY TAPE B BUTTON REW TAPE B BUTTON F FWD TAPE B BUTTON STOP EJECT TAPE B BUTTON PAUSE TAPE B BUTTON PLAY TAPE A BUTTON REW TAPE A BUTTON F FWD TAPE A BUTTON STOP EJECT TAPE A BUTTON PAUSE TAPE A BUTTON DOLBY DUBBING SPEED BRACKET E ...

Page 16: ...i EXPLODED VIEW CABINET CHASSIS w Y 15 W ...

Page 17: ...O1 or 407 012 4406 OIODE 1SS133 or 407 012 5809 DIODE 1SS176 D2151 407 091 5004 VARACTOR DI SVC321SPA C 2 D2152 407 091 5004 VARACTOR DI SVC321SPA C 2 D2451 407 007 9904 DIODE GMA01 D2451 D2453 or 407 012 4406 DIODE 1SS133 or 407 012 5809 DIODE 1SS176 D4102 407 004 9105 DIODE DSF1OC D41O2 D41O5 D4106 407 049 6602 ZENER OIODE GZA13Y D4107 407 007 9904 DIODE GMAO1 D41O7 D41O8 or 407 012 4406 DIODE 1...

Page 18: ... OECK C3303 403 058 9108 POLYESTER 0 018U J 50V C3304 403 058 1102 POLYESTER 1500P K 50V CN301 645 005 8141 PLUG 9P CN302 645 005 9292 PLUG 5P CN303 645 004 2911 PLUG 5P CN304 645 004 2898 PLUG 3P CN306 614 020 6562 SOCKET 4P or 614 223 9223 SOCKET 4P CN307 614 020 6548 SOCKET 2P or 614 223 9209 SOCKET 2P CN371 645 005 8110 PLUG 4P CN372 645 006 0861 PLUG 7P CN373 645 005 7373 PLUG 3P D3101 407 00...

Page 19: ...t No Description 74 614 267 1368 ASSY PWB POWER TRANSFORMER SECONDARY CN400 614 020 6562 SOCKET 4P PR401 645 006 2360 PROTECTOR IC 1 OA 50V R4001 402 044 6701 RESISTOR 0 47 J l 2w R4002 402 044 6701 RESISTOR 0 47 J l 2W RONT Ref No 75 C2407 CM401 CM402 CM403 CM404 CN244 CN245 CN246 CN247 CN251 CN420 CN421 CN484 CN485 CN486 CN487 CN488 CN489 CN498 D2401 or D2431 r 14201 r 14206 14207 14208 4209 421...

Page 20: ...escription ASSY PWB LAMP SOCKET 2P LAMP PILOT 12V 150MA CDOPEN CLOSESWITCH P W BOARDASSY 614 240 1002 SWITCH TACT OPEN CLOSE CD P W BOARD ASSY Ref No 78 CN101 CN102 CN103 CN104 CN105 CN106 CN107 CN108 D1OO1 D1OO2 or or IC101 IC102 IC103 IC104 IC105 IC106 L1OO1 Qlool Or or or or Q1OO3 or 01004 or or or or Q1OO5 or or or or R104O JR101 or Klool Part No 614 264 2689 645 005 9292 645 005 8127 614 227 ...

Page 21: ...NISM 109B Y 109B Wlol 7 101 d loz IIOB 04_ lllB lo5 i L107P4 109Afl 107A i 108B I 122 I 121 121 1 1 r 127 b 130 135 _l 128 134 138B 9 1 5 I I I l j l gZ gl l 14 l 92 f 191 154 Q sci i il iz 162 I 159 J 160 tb 161 I 165 166 167 ...

Page 22: ...STOP EJECT BUTTON LEVER PAUSE BUTTON SPRING WIRE PAUSE CONTROL LEVER PAUSE SPRING COIL PAUSE LEVER BOSS PAUSE STOPPER LEVER UN RECORDING SENSOR SPRING WIRE BUTTON LEVER SPRING WIRE BUTTON LEVER 2EAR F FWD SPRING PLATE CASSETTE HOLDER SPECIAL SCREW C TAPPING SCREW 2X4MM Ref No 154 155 156 157 158 159 160 161 162 163B 164 165 166 167 168A 168B 169 171 172 173 174 175 176 177 178 179 180 181 182 183 ...

Page 23: ...EXPLODED VIEW CD MECHANISM LOADING p 301 1 D R b 302 22 ...

Page 24: ...ASSIS BASE MECHA 401 1 614 216 9841 TURNTABLE or 614 238 0413 TURNTABLE 401 2 411 044 7502 SCR PAN SW 2X5MM SPINDLE MOTOR 401 3 614 237 6980 CHASSIS BASE MECHANISM or 614 255 2582 CHASSIS BASE MECHANISM 401 4 412 032 0208 SPECIAL WASHER 401 5 614 248 2315 COMMUTATE MOTOR SPINOLE Ref No 402 403 404 or 405 406 407 408 409 410 411 412 413 414 415 416 Dr 417 418 441 Part No 411 044 8004 614 237 7031 6...

Page 25: ...i EXPLODED VIEW CD MECHANISM MAIN 1 24 ...

Page 26: ...i EXPLODED VIEW TURNTABLE MECHANISM A 51CI 5114 k I O 576 w am 575 576 25 555 ...

Page 27: ...RING SPRING FLOATING SPONGE FLOATING SWITCH AUTO SHUT OFF SWITCH SCREW SWITCH FIX WIRE LABEL Ref No 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 Part No 645 007 0587 645 007 0495 645 007 0907 645 007 0532 645 007 0549 645 007 0419 645 007 0372 645 007 08B4 645 007 0457 645 007 0525 645 007 0815 645 0...

Page 28: ...ONT END A IvCcl l lF 141 iY F5 IC231 LA1831 AM FM IF FM MPX j_ 6 64 6 i A 4 18 IC402 LA4705 POWER AMP IC52 TC4052 MULTIPLEXEFUDEMULTIPLEXER u Vcc 1 16 VOD 1 X COM 12 ox lx 15 i 2x 3x OY F 2Y 3Y Jr AF IN P E cm S Ay r 1 2 1 L II I L I J Y COM 8 VES 7 i VEE 27 ...

Page 29: ... n I D AU m NO1lU ZE 1 1 D c oney cmcuir U o Osc L CUT L 1 L r co L 0 41J1 1 51 IN 6 40 2 on z lNIF INIR NF 1 WT 1 MoeJ y NW h N H MIX FIR GND OUT1 OUT SW I n I IC37 MLC4066B SWITCHING LOGIC I I 0 A WC 1 2 wwr2 M CONTRCJL7 3 2 OUT1 IN1 1 CONTKL 2 5 3 OUT 2 1N2 L PIN CONNECTION EN CONTROL 3 6 9 OUT3 IN3 8 CONTROL L 1 10 OUT 4 INI 11 IC422 BA6125 LED LEVEL INDICATOR 01 02 03 06 GNO 05 AmP N Vcc Outw...

Page 30: ...I I w 0 I I I ig I I I w i 1 44 s f 0 4 J b j I c m Lo R2451 Cll I I ...

Page 31: ... i J L 1 m 3 Ii J 9zvvr _ 1 111V3 4 _ 1 I m m I CL u l I N m I ...

Page 32: ... I J 8 _ g I I A r 41 4 AW37 1 l dl d i I I II 11 1111 7w Y l k I L 1 II b I ...

Page 33: ...i 1 I J I r r l I la m I ...

Page 34: ...i v I r J ii I w 02 I I I klui w ll l L 1 mu Id 1 IUc l FW JW I 1 lL l l L IUA 1 1 L 1 J I l I 1 I 1 L U 0J9 qf c 2 w m K 1 I I ...

Page 35: ...E m Ii Qllllu 1 1 r g K i J ...

Page 36: ... _____ _ _ _ ____ ___ _ p I m rl I I 1 I 1 2 6LCK 1 l c L z l II I 1 121 1 IIIIJ cm BuS 3 8 5 7 l a Em o 1 1 CD I W13 M W r w II II II R M I d 13 ikY c 34Ei I u _ _ _ _ _ _ _ I I L I I I Ilri l l i ...

Page 37: ... DIAGRAM FRONT OPERATION CN2 CD OPEN CLOSE SWITCH P W B LAMP P W B _ lNTRO RANO n i 4 i t I J d 42 2b2M 1 2 CN205 CNL12 TuNERfAMP PWB 5 b6 CN1OL CN105 CD PWB 3 TuNERIAMP PWB CN20L 44 45 6 TuNERIAMP PWB CN411 ...

Page 38: ...IEEE I 111 Ill 0 O 111 I I Ill I m v 0 3 l m m I 8 t x r II x r r 8 5 ...

Page 39: ...iving input loutput terminals Schmitt input Command and data sendong receiving input output terminals Schmitt input Command and data sending receiving inp tlcmtp t terminals Schmitt input Command and data sending recerving chip enable signal input terminal The bus line becomes actwe at L level Schmitt input Command and data sending receiving clock input terminal Schmitt input 4 4 clock output term...

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