JVC CD Receiver KD-G227 Скачать руководство пользователя страница 33 | Manualshive

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(No.MA236)1-9

1.2

Preventing static electricity

Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser
diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.

1.2.1 Grounding to prevent damage by static electricity

Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD players.
Be careful to use proper grounding in the area where repairs are being performed.

(1) Ground the workbench

Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the
traverse unit (optical pickup) on it.

(2) Ground yourself

Use an anti-static wrist strap to release any static electricity built up in your body.

(3) Handling the optical pickup

• In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical

pickup are shorted. After replacement, return the shorted parts to their original condition.
(Refer to the text.)

• Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily

destroy the laser diode.

1.3

Handling the traverse unit (optical pickup)

(1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.
(2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the

replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a
time when attaching it to the connector.

(3) Handle the flexible cable carefully as it may break when subjected to strong force.
(4) It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.

1.4

Attention when traverse unit is decomposed

*Please refer to "Disassembly method" in the text for the CD pickup unit.

• Apply solder to the short land before the flexible wire is disconnected from the connector on the CD pickup unit.

(If the flexible wire is disconnected without applying solder, the CD pickup may be destroyed by static electricity.)

• In the assembly, be sure to remove solder from the short land after connecting the flexible wire.

1M

(caption)
Anti-static wrist strap

Conductive material
(conductive sheet) or iron plate

Wires

Push switch

Pickup

Base board

Pickup

Connector

Flexible wire

Frame

CD mechanism
assembly

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Содержание CD Receiver KD-G227

Страница 1: ...d UN Indonesia U Other Areas KD G325 KD G326 KD AR270 KD G220 KD G227 KD G321 KD G322 KD G323 KD G324 KD G325 KD G326 KD G327 Area suffix KD G227 KD G327 EE Russian Federation Contents Block diagram For KD AR270 KD G220 KD G227 KD G323 KD G324 KD G325 KD G326 Standard schematic diagrams For KD AR270 KD G220 KD G323 KD G324 KD G325 KD G326 Standard schematic diagrams For KD G227 Block diagram For K...

Страница 2: ... system Safety precaution Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check Difference point Remote ready Steering remote ready Power antenna Telephone Muting KD G321 KD G322 KD G327 NO NO NO NO YES YES YES YES YES YES NO NO YES NO NO NO KD G323 KD G324 KD G325 KD G326 KD AR270 KD G220 KD G227 ...

Страница 3: ... VT1 VT2 LD MD SPINDLE SPINDLE FEED FEED TRACKING TRACKING FOCUS FOCUS OUTL OUTR LINE OUT CN001 FOCUS TRACKING COIL TRACKING TRACKING FOCUS FOCUS Main amplifier CD servo control section CJ601 CN502 CN502 CN503 CN503 KEY0 KEY1 KEY2 IC661 LCD DRIVER LCD1 LCD DISPLAY COM1 COM2 COM3 S1 to S52 LCDCLK LCDDA LCDCE KEY0 KEY1 KEY2 LCDCLK LCDDA LCDCE ENC1 ENC2 REMOCON LCD Key control section L CH R CH RRO R...

Страница 4: ...1304 X 2 2 4 7K AN80T71 0 47 2SA1530A QR X 0 1 4 7k 1SS355W X 2 2 2 2K 0 01 820 820 4 7u 2 2 50 QGZ1601J1 15 QQR0703 001 47k 2 2K 2SC3928A QR X 2SA1530A QR X 100 1SS355W X 0 1 CRS03 W QAU0394 003 2 2 0 1 0 1 100P 100P KTD1304 X KTD1304 X QMFZ047 150 T 0 1 0 1 1SS355W X 2 2K 100 1k 820 2SA1365 F X 820 2 2K 100 100 1SS355W X 0 082 1k 1SS355W X 47k 47k 0 1 0 47 RT1P141C X 10k 100 16 2SC3928A QR X 47k...

Страница 5: ...5EE 1A3G T1 0 1 8200p 8200p 2 2k 2 2k 2 2k 1K 1K 4 7k 0 082 1000p 220 6 3 82k 0 1 0 015 680p 0 1 4 7k 4 7k 0 33 0 33 0 022 0 022 180P 560P 30K 27k 150 1K 1K 68k 3 3K 3 3K 2 2K 5 6K 27K 0 15k 0 15k 27K 5 6K 150p NJU7772F15 X 150p QGB2027M4 22S 1M 220 1 5M 100p 4 7 25 4 7 25 SN74LVC2G07V X QGZ2512M1 08 QGZ2512M1 10 1k 0 1 47 6 3 47 6 3 47 6 3 0 1 22k 820 3300p 39K 4 7k 0 1 47 6 3 4 7k 0 22 47 6 3 47...

Страница 6: ...C512 C511 C514 C501 C510 C509 R505 R568 C508 R519 R506 C502 R501 R502 R503 R512 C513 R514 C515 R516 C517 R518 C503 C504 QGZ2512M1 10 QGZ2512M1 08 22 22 11k 2SA1705 ST T 15k 3 3K 100K 27K 15K 10k 15k 15k 47 16 0 01 68p LA6242H X 0 1 0 1 2200p 0 1 220 6 3 0 047 0 047 11k 7 5k 0 047 47k 30k 0 1 8 2k 8 2k 5 1k 5 6K 6800p 5 6k 0 0012 1K 0 0018 5 6K 220 10 0 1 TO SHEET 2 TO SHEET 2 CD servo control sect...

Страница 7: ...2K 51K 0 022 680p 10K 10K 10K 820 820 820 1 8k 1 2k 820 1 2k 1 8k 2 2K 820 1 2k 470 0 180K 1SS355W X 390 10K 470 470 330 470 100 0 022 330 330 NSPW310BS BRST 470 UDZW6 2B X 390 820 SML 310LT MN X NSPW310BS BRST 47K RT1N141C X 1K 2SA1365 F X 0 0 0 470 KEY2 KEY2 ENC1 KEY1 ENC2 CE CLK DATA REMOCON 5V_LCD_CLK KEY1 DIMOUT ILL10V KEY0 S51 S52 ACC5V KEY0 5V_LCD_CE 5V_LCD_DA 5V_LCD_CE 5V_LCD_CLK 5V_LCD_DA...

Страница 8: ... 2 4 7K AN80T71 0 47 2SA1530A QR X 0 1 4 7k 1SS355W X 2 2 2 2K 1 5k 0 01 820 820 4 7u 2 2 50 QGZ1601J1 15 QQR0703 001 47k 47K 2 2K 2SC3928A QR X 2SA1530A QR X 100 1SS355W X 2 7K 2 7K 0 1 CRS03 W QAU0394 003 2 2 LA4743K 0 1 0 1 100P 100P KTD1304 X KTD1304 X QMFZ047 150 T 0 1 0 1 1SS355W X 2 2K 100 1k 820 2SA1365 F X 820 2 2K 100 100 1SS355W X 1k 3 3 50 1SS355W X 47k 47k 0 1 0 47 RT1P141C X 10k 100 ...

Страница 9: ...5EE 1A3G T1 0 1 8200p 8200p 2 2k 2 2k 2 2k 1K 1K 4 7k 0 082 1000p 220 6 3 82k 0 1 0 015 680p 0 1 4 7k 4 7k 0 33 0 33 0 022 0 022 180P 560P 30K 27k 150 1K 1K 68k 3 3K 3 3K 2 2K 5 6K 27K 0 15k 0 15k 27K 5 6K 150p NJU7772F15 X 150p QGB2027M4 22S 1M 220 1 5M 100p 4 7 25 4 7 25 SN74LVC2G07V X QGZ2512M1 08 QGZ2512M1 10 1k 0 1 47 6 3 47 6 3 47 6 3 0 1 22k 820 3300p 39K 4 7k 0 1 47 6 3 4 7k 0 22 47 6 3 47...

Страница 10: ...C512 C511 C514 C501 C510 C509 R505 R568 C508 R519 R506 C502 R501 R502 R503 R512 C513 R514 C515 R516 C517 R518 C503 C504 QGZ2512M1 10 QGZ2512M1 08 22 22 11k 2SA1705 ST T 15k 3 3K 100K 27K 15K 10k 15k 15k 47 16 0 01 68p LA6242H X 0 1 0 1 2200p 0 1 220 6 3 0 047 0 047 11k 7 5k 0 047 47k 30k 0 1 8 2k 8 2k 5 1k 5 6K 6800p 5 6k 0 0012 1K 0 0018 5 6K 220 10 0 1 TO SHEET 2 TO SHEET 2 CD servo control sect...

Страница 11: ...22 680p 10K 10K 10K 820 820 820 1 8k 1 2k 820 1 2k 1 8k 2 2K 820 1 2k 470 QLD0402 001 180K 1SS355W X 390 10K 470 470 330 470 100 0 022 330 330 NSPW310BS BRST 470 UDZW6 2B X 390 820 SML 310LT MN X NSPW310BS BRST 47K RT1N141C X 1K 2SA1365 F X 560 0 0 0 1 2K 1 5K KEY2 KEY2 ENC1 KEY1 ENC2 CE CLK DATA REMOCON 5V_LCD_CLK KEY1 DIMOUT ILL10V KEY0 S51 S52 ACC5V KEY0 5V_LCD_CE 5V_LCD_DA 5V_LCD_CE 5V_LCD_CLK...

Страница 12: ...MUTE CONT SW1 SW2 PSW LM MSW FEED FEED SPINDLE SPINDLE VF1 VF2 VT1 VT2 LD MD SPINDLE SPINDLE FEED FEED TRACKING TRACKING FOCUS FOCUS OUTL OUTR LINE OUT CN001 FOCUS TRACKING COIL TRACKING TRACKING FOCUS FOCUS Main amplifier CD servo control section CN502 CN502 CN503 CN503 TU_L TU_R RRO RLO VSDA VSCL ANT J1 J321 IC901 REGULATOR EACH BLOCK SPK BATTERY CN901 CN761 CJ601 KEY0 KEY1 KEY2 IC661 LCD DRIVER...

Страница 13: ...0 0 2 2k 22K QAU0443 001 KTD1304 X QFV91HJ 474Z AN80T71 0 QFV91HJ 474Z 4 7k 1S S355W X QAM0682 001 1 50 2 2K 1K 0 01 1 50 CRS03 W 1 50 820 820 4 7u QGZ1601J1 15 QQR0703 001 0 47K 2 2K UDZW11B X 0 01 47k 100 1SS355W X 15K 15K QAX0667 001Z QNN0773 001 1 50 1 50 LA47201 10k 8 2 0 1 0 1 0 1 0 1 0 1 100 0 1 100 2 2 0 1 2 2 QAX0263 001Z 2 2K 47k 0 47k 7 5K 0 0 22 50 47K 47k 47k 1SS355W X 0 1 1k 47k UDZW...

Страница 14: ...A3G T1 0 0 0033 0 10 2 2k 2 2k 2 2k 1K 1K 0 1 4 7k 10K 30K 8200P 0 082 1000p 1 5K 220 6 3 82k 0 1 0 015 680p 0 1 15k 4 7k 4 7k 1 5K 15k 0 33 30K 10K 100P 0 33 0 022 0 022 180P 560P 30K 100P QTE1H54 225Z QTE1H54 225Z 27k 150 8200P 1K 1K 68k 3 3K 3 3K 2 2K NJU7772F15 X QGB2027M4 22S 1M 220 1 5M 100p SN74LVC2G07V X QGZ2512M1 08 QGZ2512M1 10 1k 10k 0 1 47 6 3 47 6 3 47 6 3 0 1 NJM4565E X 820 100k 100k...

Страница 15: ...C512 C511 C514 C501 C510 C509 R505 R568 C508 R519 R506 C502 R501 R502 R503 R512 C513 R514 C515 R516 C517 R518 C503 C504 LA6242H X QGZ2512M1 10 QGZ2512M1 08 22 22 11k 2SA1705 ST T 15k 3 3K 100K 27K 15K 10k 15k 15k 47 16 0 01 68p 0 1 0 1 2200p 0 1 220 6 3 0 047 0 047 11k 7 5k 0 047 47k 30k 0 1 8 2k 8 2k 5 1k 5 6K 6800p 5 6k 0 0012 1K 0 0018 5 6K 220 10 0 1 TO SHEET 2 TO SHEET 2 CD servo control sect...

Страница 16: ...LQ L 2 7k 0 022 QGZ1601K1 15S 2 2K 51K 0 022 680p 10K 10K 10K 820 820 820 1 8k 1 2k 820 1 2k 1 8k 2 2K 820 1 2k 470 QLD0419 001 0 180K 1SS355W X 390 10K 470 470 330 470 100 0 022 330 330 NSPW310BS BRST 470 UDZW6 2B X 390 820 SML 310LT MN X NSPW310BS BRST 47K RT1N141C X 1K 2SA1365 F X 0 0 0 KEY2 KEY2 ENC1 KEY1 ENC2 CE CLK DATA REMOCON LCDCLK KEY1 DIMOUT ILL10V KEY0 S51 S52 ACC5V KEY0 LCDCE LCDDA LC...

Страница 17: ...50 T 1k 100 0 1 50 2 2k 22K QAU0453 001 KTD1304 X QFV91HJ 474Z AN80T71 0 QFV91HJ 474Z 4 7k 1S S355W X QAM0682 001 1 50 2 2K 1K 0 01 1 50 CRS03 W 1 50 820 820 4 7u QGZ1601J1 15 QQR0703 001 0 47K 2 2K UDZW11B X 0 01 47k 100 1SS355W X 15K 15K QAX0667 001Z QNN0773 001 1 50 1 50 LA47201 10k 8 2 0 1 0 1 0 1 0 1 0 1 100 0 1 100 2 2 0 1 2 2 QAX0263 001Z 2 2K 47k 0 47k 7 5K 0 0 22 50 47K 47k 47k 1SS355W X ...

Страница 18: ... 0 0033 0 10 2 2k 2 2k 2 2k 1K 1K 0 1 4 7k 10K 30K 8200P 0 082 1000p 1 5K 220 6 3 82k 0 1 0 015 680p 0 1 15k 4 7k 4 7k 1 5K 15k 0 33 30K 10K 100P 0 33 0 022 0 022 180P 560P 30K 100P QTE1H54 225Z QTE1H54 225Z 27k 150 8200P 1K 1K 68k 3 3K 3 3K 2 2K NJU7772F15 X QGB2027M4 22S 1M 220 1 5M 100p SN74LVC2G07V X QGZ2512M1 08 QGZ2512M1 10 1k 10k 0 1 47 6 3 47 6 3 47 6 3 0 1 NJM4565E X 820 100k 100k 10k 820...

Страница 19: ...1 C514 C501 C510 C509 R505 R568 C508 R519 R506 C502 R501 R502 R503 R512 C513 R514 C515 R516 C517 R518 C503 C504 LA6242H X QGZ2512M1 10 QGZ2512M1 08 22 22 11k 2SA1705 ST T 15k 3 3K 100K 27K 15K 10k 15k 15k 47 16 0 01 68p 0 1 0 1 2200p 0 1 220 6 3 0 047 0 047 11k 7 5k 0 047 47k 30k 0 1 8 2k 8 2k 5 1k 5 6K 6800p 5 6k 0 0012 1K 0 0018 5 6K 220 10 0 1 TO SHEET 2 TO SHEET 2 CD servo control section 2 2 ...

Страница 20: ... 51K 0 022 680p 10K 10K 10K 820 820 820 1 8k 1 2k 820 1 2k 1 8k 2 2K 820 1 2k 470 QLD0388 001 0 180K 1SS355W X 390 10K 470 470 330 470 100 0 022 330 330 NSPW310BS BRST 470 UDZW6 2B X 390 820 SML 310LT MN X NSPW310BS BRST 47K RT1N141C X 1K 2SA1365 F X 0 0 0 470 KEY2 KEY2 ENC1 KEY1 ENC2 CE CLK DATA REMOCON LCDCLK KEY1 DIMOUT ILL10V KEY0 S51 S52 ACC5V KEY0 LCDCE LCDDA LCDCE LCDCLK LCDDA INH S17 S18 O...

Страница 21: ...R530 R523 R559 R558 C523 R529 R528 R527 R526 R525 R524 R535 R537 R561 R562 R583 R584 R585 R586 R587 R588 R589 R590 R591 R593 R592 R594 R710 B19 B535 R705 R706 R707 R708 R709 R701 R711 R712 R713 R715 R716 R717 R718 B354 R723 R724 R725 R726 R727 R728 R729 R730 R731 R732 R733 R735 R736 R737 R738 R739 R740 R741 R743 R745 R749 R801 R802 R803 C529 R805 R806 R807 R808 R809 R810 R901 R903 R905 R906 R907 R...

Страница 22: ...191 R192 R193 R301 R302 R303 R304 R305 R306 R310 R311 R341 R342 R345 R351 R352 R355 R521 R522 R523 R524 R525 R526 R527 R528 R529 R530 R531 R532 R533 R534 R535 R537 R538 R539 R540 R541 R542 R543 R544 R545 R548 R554 R556 R558 R559 R561 R562 R565 R566 R583 R584 R585 R586 R587 R588 R589 R590 R591 R592 R593 R594 R701 R702 R707 R708 R709 R710 R711 R712 R713 R714 R716 R717 R718 R719 R720 R721 R722 R723 R...

Страница 23: ...R607 R608 R609 R610 R611 R613 R633 R634 R637 R638 R639 R640 R641 R642 S 6 0 1 S602 S603 S604 S605 S606 S607 S608 S609 S610 S611 S612 S613 S614 S615 S616 LCD1 B633 D644 B634 B635 R635 R636 B636 C661 C662 C663 C664 C681 C682 C686 C687 CJ601 D652 D653 D661 D662 D681 IC661 IC 6 8 1 JS686 Q670 Q671 R601 R612 R630 R631 R632 R643 R644 R645 R646 R649 R650 R661 R662 R663 R664 R665 R666 R667 R668 R670 R671 ...

Страница 24: ...Victor Company of Japan Limited No MA236SCH Printed in Japan VPT Mobile Entertainment Business Group Mobile Entertainment Category 10 1 1chome Ohwatari machi Maebashi city 371 8543 Japan ...

Страница 25: ... 219 Centigrade TABLE OF CONTENTS 1 PRECAUTIONS 1 8 2 SPECIFIC SERVICE INSTRUCTIONS 1 11 3 DISASSEMBLY 1 12 4 ADJUSTMENT 1 16 5 TROUBLESHOOTING 1 17 Area suffix J Northern America KD AR270 KD G220 Area suffix E Southern Europe EX Northern Europe EY Eastern Europe EU Turkey KD G321 KD G322 Area suffix UI India KD G323 KD G324 Area suffix UT Taiwan UH Thailand UN Indonesia U Other Areas KD G325 KD G...

Страница 26: ...50 dB Quieting Sensitivity 16 3 dBf 1 8 µV 75 Ω Alternate Channel Selectivity 400 kHz 65 dB Frequency Response 40 Hz to 15 000 Hz Stereo Separation 35 dB Capture Ratio 1 5 dB AM Tuner Sensitivity 20 µV Selectivity 35 dB CD PLAYER SECTION Type Compact disc player Signal Detection System Non contact optical pickup semiconductor laser Number of channels 2 channels stereo Frequency Response 5 Hz to 20...

Страница 27: ... 3 dBf 1 0 µV 75 Ω 50 dB Quieting Sensitivity 16 3 dBf 1 8 µV 75 Ω Alternate Channel Selectivity 400 kHz 65 dB Frequency Response 40 Hz to 15 000 Hz Stereo Separation 30 dB Capture Ratio 1 5 dB AM Tuner Sensitivity 20 µV Selectivity 35 dB CD PLAYER SECTION Type Compact disc player Signal Detection System Non contact optical pickup semiconductor laser Number of Channels 2 channels stereo Frequency ...

Страница 28: ... FM Tuner Usable Sensitivity 11 3 dBf 1 0 µV 75 Ω 50 dB Quieting Sensitivity 16 3 dBf 1 8 µV 75 Ω Alternate Channel Selectivity 400 kHz 65 dB Frequency Response 40 Hz to 15 000 Hz Stereo Separation 30 dB Capture Ratio 1 5 dB MW Tuner Sensitivity 20 µV Selectivity 35 dB LW Tuner Sensitivity 50 µV CD PLAYER SECTION Type Compact disc player Signal Detection System Non contact optical pickup semicondu...

Страница 29: ...sitivity 11 3 dBf 1 0 µV 75 Ω 50 dB Quieting Sensitivity 16 3 dBf 1 8 µV 75 Ω Alternate Channel Selectivity 400 kHz 65 dB Frequency Response 40 Hz to 15 000 Hz Stereo Separation 30 dB Capture Ratio 1 5 dB AM Tuner Sensitivity 20 µV Selectivity 35 dB CD PLAYER SECTION Type Compact disc player Signal Detection System Non contact optical pickup semiconductor laser Number of Channels 2 channels stereo...

Страница 30: ...itivity 11 3 dBf 1 0 µV 75 Ω 50 dB Quieting Sensitivity 16 3 dBf 1 8 µV 75 Ω Alternate Channel Selectivity 400 kHz 65 dB Frequency Response 40 Hz to 15 000 Hz Stereo Separation 30 dB Capture Ratio 1 5 dB AM Tuner Sensitivity 20 µV Selectivity 35 dB CD PLAYER SECTION Type Compact disc player Signal Detection System Number of Channels Non contact optical pickup semiconductor laser 2 channels stereo ...

Страница 31: ... Usable Sensitivity 11 3 dBf 1 0 µV 75 Ω 50 dB Quieting Sensitivity 16 3 dBf 1 8 µV 75 Ω Alternate Channel Selectivity 400 kHz 65 dB Frequency Response 40 Hz to 15 000 Hz Stereo Separation 30 dB Capture Ratio 1 5 dB MW Tuner Sensitivity 20 µV Selectivity 35 dB LW Tuner Sensitivity 50 µV CD PLAYER SECTION Type Compact disc player Signal Detection System Non contact optical pickup semiconductor lase...

Страница 32: ... formed during molding may be left over on some parts of the chassis Therefore pay attention to such burrs in the case of preforming repair of this system Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check ...

Страница 33: ...ptical pickup The tester s internal power source can easily destroy the laser diode 1 3 Handling the traverse unit optical pickup 1 Do not subject the traverse unit optical pickup to strong shocks as it is a sensitive complex unit 2 Cut off the shorted part of the flexible cable using nippers etc after replacing the optical pickup For specific details refer to the replacement procedure in the text...

Страница 34: ...o function 6 CAUTION Use of controls adjustments or performance of procedures other than those specified here in may result in hazardous radiation exposure REPRODUCTION AND POSITION OF LABELS Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check WARNING LABEL CAUTION Visible and Invisible laser radiation when open and interlock failed or def...

Страница 35: ... CD mechanism assembly For CD mechanism please refer mechanism amnual No MY003 KD AR270 KD G220 KD G227 KD G322 KD G321 KD G323 KD G324 KD G325 KD G326 KD G327 Remote ready YES NO YES YES Steering remote ready NO YES NO NO Power antenna NO NO YES NO Telephone Muting NO YES NO YES ...

Страница 36: ...ight side and joint c on the back side of the main body then remove the bottom cover from the main body Note When releasing the joints using a screwdriver do not damage the main board Fig 2 3 1 3 Removing the front chassis assembly See Fig 3 Remove the front panel assembly and bottom cover 1 Remove the two screws A on the both sides of the main body 2 Release the joint d and joint e on the both si...

Страница 37: ...er 1 Remove the three screws D three screws E and two screws F attaching the rear bracket on the back side of the main body For KD AR270 KD G220 KD G227 KD G323 KD G324 KD G325 KD G326 KD G327 2 Remove the four screws D three screws E and two screws F attaching the rear bracket on the back side of the main body For KD G321 KD G322 3 Remove the rear bracket Fig 5 Side panel C B C For KD AR270 KD G2...

Страница 38: ...n board from the main body and take out the main board with the rear bracket See Fig 6 Reference Remove the rear bracket from the main body as required See 3 1 5 Removing the rear bracket Fig 6 3 1 7 Removing the CD mechanism assembly See Fig 7 Remove the front panel assembly bottom cover side panel rear bracket and main board Reference Remove the front chassis assembly as required 1 Remove the th...

Страница 39: ...J on the back side of the front pan el assembly See Fig 8 2 Release the joints f and remove the rear cover See Fig 9 3 Release the joint g and take out the switch board from the front panel assembly See Fig 10 Fig 8 Fig 9 Fig 10 J J J Joints f Joints f Joints f Joints f Rear cover Switch board Joint g Front panel assembly ...

Страница 40: ...oad there is a loss of 6dB between SSG output and antenna input The loss of 6dB need not be considered since direct reading of figures are applied in this working standard How to connect the extension cable for adjusting Caution Be sure to attach the heat sink and rear bracket onto the power amplifier IC and regulator IC respectively before supply the power If voltage is applied without attaching ...

Страница 41: ...een IC501 and IC521 YES NO Is the power supply present at pin 37 pin 49 pin 53 pin 56 and pin 72 of IC521 YES Check IC521 NO Check the connections of CD8V power supply When the lens is moving Does the S search waveform appear at IC501 pins 8 and 9 4V Check the pickup and its connections YES NO Is the voltage input at pin 15 of IC501 YES NO Is the voltage output at pin 13 of IC521 NO YES Check the ...

Страница 42: ...nput at pin 17 of IC501 YES NO Is the voltage output at pin 5 of IC521 Check the connections between IC501 and IC521 YES NO Is the power supply present at pin 3 pin 12 and pin 21 of IC501 YES Check IC501 NO Check the connections of CD8V power supply Is the power supply present at pin 37 pin 49 pin 53 pin 56 and pin 72 of IC521 YES Check IC521 NO Check the connections of CD8V power supply When the ...

Страница 43: ...C901 NO Check IC901 and its peripheral circuits Is the audio signal output at pin 18 and pin 19 of IC161 during playback YES NO Check IC161 and its peripheral circuits YES Check the power amplifier IC301 Is the audio signal output at pin 18 and pin 19 of IC171 during playback No sound from either channel Is 9V present at pin 32 of IC171 Compare the L ch and R ch to locate the defective point Is th...

Страница 44: ...al block do not touch the semi fixed resistor If the laser power is lower than the specified value the la ser diode is almost worn out and the laser pickup should be replaced If the semi fixed resistor is adjusted while the pickup is functioning normally the laser pickup may be damaged due to excessive current 5 7 Replacement of laser pickup Is RF output 1 3 0 4Vp p YES NO OK Replace it Turn of th...

Страница 45: ...BK GY BK REMOTE OUT GND 16 YL 8 BK 7 RD 3 GN 11 GN BK 2 VI 10 VI BK 4 WH 12 WH BK 1 GY 9 GY BK 5 BL WH 8 BK Black RD Red BL Blue WH White GN Green VI Violet GY Gray YL Yellow RR Rear Right FR FL RL Rear Left Front Right Front Left REMOTE Remote out ACC MEMORY ACC Line GND Memory Backup Battery Ground MEMORY GND ACC RL RL RR RR FL FL FR FR REMOTE ...

Страница 46: ... BK WH BK GN BK BK Black RD Red BL Blue WH White GN Green VI Violet GY Gray YL Yellow 7 RD 16 YL 8 BK 5 BL WH 3 GN 11 GN BK 2 VI 10 VI BK 4 WH 12 WH BK 1 GY 9 GY BK RD RD 7 YL 4 8 5 7 8 1 2 5 3 6 4 RR Rear Right FR FL RL Rear Left Front Right Front Left REMOTE Remote out ACC MEMORY ACC Line GND Memory Backup Battery Ground ACC MEMORY GND REMOTE RL RL RR RR FL FL FR FR BL WH WH BK GN BK VI BK GY BK...

Страница 47: ... 8 BK 7 RD 3 GN 11 GN BK 2 VI 10 VI BK 4 WH 12 WH BK 1 GY 9 GY BK 5 BL WH 6 BL Black RD BK Red BL Blue WH White GN Green VI Violet GY Gray YL Yellow RR FR FL RL REMOTE ANT ACC GND MEMORY Rear Right Front Right Front Left Rear Left Remote ACC Line Ground Memory Backup Battery Auto Antenna MEMORY GND ACC RL RL RR RR FL FL FR FR REMOTE ANT REMOTE OUTPUT ONLY POWER ANTENNA NC ...

Страница 48: ...I GY WH GN VI BK GY BK WH BK GN BK 7 RD 16 YL 8 BK 5 BL WH 13 BR 3 GN 11 GN BK 2 VI 10 VI BK 4 WH 12 WH BK 1 GY 9 GY BK RD RD 7 YL 4 8 5 2 8 5 2 7 1 6 3 4 BK RD BL WH BR Black Red Blue White Brown GN Green VI Violet GY Gray YL Yellow RR Rear Right FR Front Right FL Front Left RL Rear Left REMOTE Remote ACC TEL ACC Line Telephone Muting GND Ground MEMORY Memory Backup Battery ILL Illuminations Cont...

Страница 49: ... No MA236 1 25 ...

Страница 50: ... No MA236 Mobile Entertainment Business Group Mobile Entertainment Category 10 1 1chome Ohwatari machi Maebashi city 371 8543 Japan Victor Company of Japan Limited VPT Printed in Japan ...

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