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Technics SL-EH760, Service Manual

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Technics SL-EH760 Service Manual Download Page 1

AD0002035C2

Compact Disc Player

SL-EH760

Traverse Deck:RAE0152Z-1 Mechanism series

Colour

(S)..........Silver Type

Area

(E)..........Europe.

SPECIFICATIONS

 

Summary of Contents for SL-EH760

Page 1: ...AD0002035C2 Compact Disc Player SL EH760 Traverse Deck RAE0152Z 1 Mechanism series Colour S Silver Type Area E Europe SPECIFICATIONS...

Page 2: ...not subject the traverse deck optical pickup to static electricity as it is extremely sensitive to electrical shock 2 To protect the laser diode against electrostatic breakdown short the flexible boa...

Page 3: ...ugh the traverse deck optical pickup 3 Precaution of Laser Diode CAUTION This product utilizes a laser diode with the unit turned on invisible laser radiation is emitted from the pickup lens Wave leng...

Page 4: ...3 Do not look at the focus lens using optical instruments 4 Recommend not to look at the pickup lens for a long time 4 Location of Controls 5 Operation Checks and Component Replacement Procedures 4...

Page 5: ...5 1 Checking for the main P C B Check the main P C B as shown below 5...

Page 6: ...5 2 Checking for the operation P C B Follow the Step 1 Step 3 of item 5 1 6...

Page 7: ...Check the operation P C B as shown below 5 3 Checking for the CD servo P C B Follow the Step 1 Step 3 of item 5 1 7...

Page 8: ...Check the CD servo P C B as shown below 8...

Page 9: ...5 4 Replacement for the traverse deck ass y Follow the Step 1 Step 3 of item 5 1 Follow the Step 1 Step 4 of item 5 2 9...

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Page 15: ...5 5 Replacement for the disc tray Follow the Step 1 Step 3 of item 5 1 Follow the Step 1 Step 4 of item 5 2 15...

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Page 18: ...sassembly and reassembly for mechanism base drive unit Follow the Step 1 Step 3 of item 5 1 Follow the Step 1 Step 4 of item 5 2 Follow the Step 1 Step 10 of item 5 4 Follow the Step 1 Step 12 of item...

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Page 30: ...5 7 Replacement for the motor ass y Follow the Step 1 Step 3 of item 5 1 Follow the Step 1 Step 4 of item 5 2 Follow the Step 1 Step 10 of item 5 4 30...

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Page 32: ...h the pickup lens 6 1 Error Code Display Procedure 6 1 1 Automatic Adjustment Results 1 Turn on the power 2 Load the test disc SZZP1054C 3 Hold down the REPEAT button for at least 2 seconds and then p...

Page 33: ...utton 4 Press the PLAY button and play for 10 seconds 5 Servo adjustment results are displayed Refer to Fig 6 2 For further information about servo adjustment results refer to Fig 6 3 Fig 6 2 Fig 6 3...

Page 34: ...A IC702 8 pin 0V MCLK IC702 7 pin 3 4 MLD IC702 9 pin 3 4 SENSE IC702 10 pin RST IC702 18 pin 3 4 V 3 4 X1 IN IC702 58 pin X2 OUT IC702 59 pin E03 E05 E07 E09 E0B E0D E0F Disc play unstable Scratches...

Page 35: ...in specified time period Scratches or contaminants on disc surface Focus and Tracking servo circuit check waveforms voltages and part values Optical pickup FE IC702 32 pin 1 7 TE IC702 33 pin 1 7 TLO...

Page 36: ...tion S601 Disc direct open switch DIRECT OPEN DISC 5 S602 Disc direct open switch DIRECT OPEN DISC 4 S603 Disc direct open switch DIRECT OPEN DISC 3 S604 Disc direct open switch DIRECT OPEN DISC 2 S60...

Page 37: ...kip search switch S614 Play switch S615 Stop switch S616 R Skip search switch S617 Random play switch RANDOM S618 Repeat switch REPEAT S619 CD edit switch EDIT S701 Rest detect switch in OFF position...

Page 38: ...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 the pa...

Page 39: ...sistor clock signal output 7 BLKCK I Block clock signal input 8 CD REQ I Serial communication signal to Sound Processor Request signal input 9 B CS O Serial communication signal to Sound Processor Chi...

Page 40: ...MLD O Command load output 30 STAT I Status signal input 31 HALH O CD mechanism motor speed control signal output 32 PL O CD mechanism solenoid control signal output 33 CW O CD mechanism motor control...

Page 41: ...tion terminal 12 BDO O Dropout detection control 13 LDON I LD APC ON OFF H ON 14 GND GND terminal 15 RFDET O RF detect signal output L detect 16 PDOWN Power down terminal 17 OFTR O Off track detection...

Page 42: ...s Not used open 12 TLOCK Optical servo condition tracking Not used open 13 BLKCK O Sub code block clock signal output f 75 Hz 14 SQCK I Sub code Q resistor clock signal input 15 SUBQ O Sub code Q data...

Page 43: ...37 TRCRS I Track cross signal input 38 RFDET I RF detect signal input L detect 39 BDO I Dropout detection signal input H dropout 40 LDON O Laser power control signal output H ON 41 PLLF2 PLL loop filt...

Page 44: ...LAG Flag terminal Not used open 66 CLVS Turntable servo phase synchro signal Not used open 67 CRC Sub code CRC check terminal Not used open 68 DEMPH De emphasis ON signal Not used open 69 RESY Re sync...

Page 45: ...er GND terminal 1 9 NC Not used connected to GND 10 D1 O Motor driver 1 output terminal 11 D1 O Motor driver 1 output terminal 12 D2 O Motor driver 2 output terminal 13 D2 O Motor driver 2 output term...

Page 46: ...anufactures specified parts shown in the parts list The marking RTL indicates that Retention Time is Limited for this item After the discontinuation of this assembly in production the item will contin...

Page 47: ...NEL ASS Y 1 10 1 RGB0025 A TECHNICS BADGE 1 11 XTBS3 8JFZ1 SCREW 3 12 XTB3 8JFZ SCREW 1 301 RAE0152Z 1 TRAVERSE DECK ASS Y 1 301 1 SHGD113 1 RUBBER 3 301 2 SNSD38 SCREW 2 301 3 RAF0150A 1 OPTICAL PICK...

Page 48: ...1 329 RDG0430 GEAR RELAY A 1 330 RDG0431 GEAR RELAY B 1 331 XTV2 6G SCREW 2 332 RMB0552 SPRING 1 333 RME0262 SPRING 1 334 RME0263 SPRING 1 335 RML0526 SPRING 1 336 RMQ0742 SPINDLE BASE 1 337 RMB0550...

Page 49: ...05 ECBT1H101KB5 50V 100P 3 C701 ECEA0JKA330I 6 3V 33U 1 C702 ECUZNE104MBN 25V 0 1U 1 C703 ECEA0JKS101 6 3V 100U 1 C704 ECUZNE104MBN 25V 0 1U 1 C706 ECUV1H272KBN 50V 2700P 1 C707 ECUV1E273KBN 25V 0 027...

Page 50: ...1 D10 12 MA165 DIODE 3 D14 MA165 DIODE 1 D401 07 MA165 DIODE 7 D601 05 LNJ301MPUJAD LED 5 D606 SML79455C LED 1 D617 MA165 DIODE 1 IC1 TA7291P IC 1 IC2 UPC29M33HB IC 1 IC451 M38504M6200F IC 1 IC452 TC7...

Page 51: ...J222 1 4W 2 2K 3 R419 20 ERDS2FJ102 1 4W 1K 2 R421 22 ERDS2FJ103 1 4W 10K 2 R423 25 ERDS2FJ472 1 4W 4 7K 3 R426 ERDS2FJ102 1 4W 1K 1 R427 ERDS2FJ472 1 4W 4 7K 1 R428 ERDS2FJ473 1 4W 47K 1 R431 ERDS2FJ...

Page 52: ...EYJ682V 1 10W 6 8K 1 R715 ERJ6GEYJ102V 1 10W 1K 1 R717 18 ERJ6GEYJ102V 1 10W 1K 2 R721 ERJ6GEYJ101V 1 10W 100 1 R723 ERJ6GEYJ682V 1 10W 6 8K 1 R724 ERJ6GEYJ183V 1 10W 18K 1 R725 ERJ6GEYJ391V 1 10W 390...

Page 53: ...t No Part Name Description Pcs Remarks S701 RSH1A043 U SW REST 1 TJ701 EYF8CU JUMMPER 1 X401 RSXY8M00D01T OSCILLATOR 1 X701 RSXB33M8J01T OSCILLATOR 1 17 Cabinet Parts Location 18 Loading Unit Parts Lo...

Page 54: ...F000207900YM KH 54...

Page 55: ...C B F MAIN P C B E OPERATION P C B C CLAMP SW P C B B MOTOR P C B D BOTTOM SW P C B OPTICAL PICKUP RED MARK CN702 W2 W2 CN1 W1 W1 RM1 ROADING MOTOR CN402 W401A W401B CN401 To SOUND PROCESSOR CASSETTE...

Page 56: ...uttons DIRECT OPEN DISC 1 DISC 5 H Disc tray open close button OPEN CLOSE I Skip search buttons 4 5 J Disc tray K Stop button L Pause button M Play button and indicator The color of the indicator depe...

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Page 59: ...DET 10 B2 19 15 RFENV RFDET 17 OFT 8 9 VREF TE FBAL TBAL Focus coil Tracking coil F F T T M702 SPINDLE MOTOR M701 TRAVERSE MOTOR VREF 22 17 Focus coil drive 16 D4 D4 11 Traverse motor drive 10 D1 D1...

Page 60: ...terleave Digital audio interface Digital audio interface Interporation soft muting digital attenuation Servo CPU D A converter Output port Micro computer interface VCO Timing generator pitch control 7...

Page 61: ...MCLK RST 16 7 29 27 14 30 28 SQCK 19 20 NC 4 SYNC 13 TEST B3 Q4 5 D10 12 14 UPC29M33HB IC2 D7 B5 B4 26 MSEL KEY SWITCH S601 619 KEY2 40 KEY1 41 1 5PLAY DATA CLK STB VDD Vss 4 14 B3 BU2050F E2 IC601 LE...

Page 62: ...72A N 1514 RJ713 RJ705 R711 RJ750 R721 This printed circuit board diagram may be modified at any time with the development of new technology 4 3 2 1 W1 S5 D1 Ca A C E BOTTOM SW P C B D REP2578A N ELEC...

Page 63: ...0 5 10 15 20 21 IC451 E C B C5 MAIN P C B F REP2822B 2M To SOUND PROCESSOR CASSETTE DECK 2 3 1 R22 1 2 3 10V A GND CT GND D GND IC2 IC451 IC452 Q4 Q5 Q6 Q7 Q401 Q402 Q403 Q404 Q405 Q406 D3 D5 D6 D7 D1...

Page 64: ...1 CN1 1 2 3 4 W1 1 2 3 W2 Q1 E C B D2 J J J J C1 C2 S1 S2 RM1 LOADING MOTOR S3 R1 MOTOR P C B B PLUNGER REP2578A N IC601 D601 D602 D603 D604 D605 D606 D617 S601 S602 S603 S604 S605 S606 S607 R603 R604...

Page 65: ...27 B A R701 4 7 C701 6 3V33 CN701 RF TP30 C716 820P TJ701 A B C D E D E C A B D C B A C751 0 1 C750 0 1 VREF C702 0 1 C706 2700P C707 0 027 C704 0 1 C703 6 3V100 Q701 2SB709STX LASER POWER DRIVE IC701...

Page 66: ...TP3 D G H I J K TP1 S701 REST TP16 C745 0 1 A B C D G H I J K G E D C B A A B C E F G H I Q702 DTC143XUA106 SWITCHING R712 220 C718 0 1 C717 0 1 C744 8200P R709 68K R711 82K C722 3P X701 33 8688MHz R...

Page 67: ...R620 820 R621 1K R622 1 2K R623 1 5K R624 1 8K R625 2 2K S617 RANDOM R626 3 3K S618 REPEAT R627 4 7K S619 EDIT R611 820 R612 1K R613 1 2K R614 1 5K R615 1 8K R616 2 2K R617 3 3K R618 4 7K R619 6 8K S6...

Page 68: ...4 7K R432 4 7K C414 470P R419 1K R422 10K C413 470P R420 1K R421 10K R413 100 E R412 100 D R411 100 C R414 2 2K R415 2 2K R416 2 2K R452 3 3K R453 3 3K R454 3 3K C452 0 01 MAIN CIRCUIT F SCHEMATIC DI...

Page 69: ...52 1000P C151 1000P CN402 C404 0 01 E1 R22 10 JK401 C7 0 01 C6 16V470 R5 1K C5 16V47 D3 MA4082LTA R4 100 D5 MA165TA D6 MA165TA R2 470 C3 1000P R3 22K SYNC CD REQ CT GND CS B 10V D GND SCLK DATA NC V G...

Page 70: ...7 8 14 1 20 21 40 41 60 61 80 1 10 2SB709STX DTC143XUA106 E C B MA4082LTA A Ca Ca A Anode Cathode 2SB621ARSTA E C B RVTDTC143EST E C B 2SB1548PQAU C B E MTZJ4R7BTA A Ca A Ca MA165TA Ca A Anode Cathode...

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