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Aiwa 6ZG-1 Service Manual

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6ZG-1
English
SERVICE MANUAL
CD-R/RW MECHANISM
BASIC CD MECHANISM :3ZG-2 E2
TYPE
ZRDM
ZRNDM
YZRNDM
YZRNDCM
S/M Code No. 09-001-338-7N2

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  • Page 1 6ZG-1 English SERVICE MANUAL CD-R/RW MECHANISM BASIC CD MECHANISM :3ZG-2 E2 TYPE ZRDM ZRNDM YZRNDM YZRNDCM S/M Code No. 09-001-338-7N2...

  • Page 2: Protection Of Eyes From Laser Beam During Servicing

    PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs laser. Therefore, be sure to follow carefully the CAUTION instructions below when servicing. Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous WARNING! radiation exposure.
  • Page 3 DISASSEMBLY INSTRUCTIONS 1. How to replace PICK UP. Open the TRAY. PICKUP Push the stopper to arrow direction and release half of the SHAFT SLED. Turn GEAR MAIN CAM to the counterclockwise (arrow “a”) direction, and lift up CD mechanism. (Fig-1) Remove SHAFT SLED.
  • Page 4 3. The disassemble and reassemble the TRAY 3-1. Disassembling procedure. Push the PLATE GEAR’S Boss at the bottom part of CHAS MECHA strongly to the outside (arrow “b” direction). (Fig-3) (Confirm that TRAY appears a little in the front.) BOSS Draw TRAY to the open position.
  • Page 5 4. How to reassemble the TURN TABLE. (Fig-7) Push LEVER TT in the direction of “C”, and put in the TURN TABLE 5CD. (Fig-7) After reassembly, one of the TURN TABLE DISC TRAY (can be either one of the five disc trays) must be aligned with TURN TABLE 5CD.

  • Page 6: Electrical Main Parts List

    ELECTRICAL MAIN PARTS LIST REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C110 87-010-322-080 C-CAP,S 100P-50 CH<YZRNDCM,ZRDM> C111 87-010-260-080 CAP, ELECT 47-25V 87-A21-381-040 C-IC,LA9235M C112 87-010-197-020 C-CAP,S 0.01-25 B<ZRNDM,YZRNDM> 87-A21-591-010 C-IC,LC78641NE-D C112 87-010-197-080 CAP, CHIP 0.01 DM<YZRNDCM,ZRDM> 87-001-982-010 IC,TA7291S C114...

  • Page 7: Transistor Illustration

    REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C505 87-010-197-020 C-CAP,S 0.01-25 B<ZRNDM,YZRNDM> L501 87-003-102-080 COIL, 10UH C505 87-010-197-080 CAP, CHIP 0.01 DM<YZRNDCM,ZRDM> LED901 87-A40-558-010 LED,SLZ-8128A-01-A C506 87-010-196-020 C-CAP,S 0.1-25 Z F GRM M601 87-045-305-010 MOTOR, RF-500TB DC-5V (2MA) <ZRNDM,YZRNDM>...

  • Page 8: Ic Block Diagram

    IC BLOCK DIAGRAM IC, LA9235M IC, BA6998FP IC, TA7291S STOP BRAKE : HI IMPEDANCE NOTE : INPUT “H” ACTIVE PROTECTOR CIRCUIT (TSD)

  • Page 9: Block Diagram

    BLOCK DIAGRAM ZRDM MODEL...
  • Page 10 WIRING-1-1 (5CD/LED [TYPE1]) ZRDM MODEL R350 PR350 The P.W.B.s of this model are changed during production in the factory. Therefore, the two different “WIRING” C.B. are shown in this manual. ZRDM MODEL...
  • Page 11 WIRING-1-2 (5CD/LED [TYPE2]) M351 TRAY MOTOR ZRDM MODEL The P.W.B.s of this model are changed during production in the factory. Therefore, the two different “WIRING” C.B. are shown in this manual. ZRDM MODEL...

  • Page 12: Schematic Diagram

    SCHEMATIC DIAGRAM WAVE FORM NO. ZRDM MODEL...
  • Page 13 WIRING-2 (T-T/CD MOTOR) TO 5CD C.B CON3 TO 5 C D C. B C O N 2...
  • Page 14 WAVE FORM CON3 Pin 4 (PH2) VOLT/DIV: 5V Between IC501 VOLT/DIV: 1V Pin ! (SLED+) and @ (SLED–) TIME/DIV: 2S TIME/DIV: 2S CON3 Pin 6 (PH1) VOLT/DIV: 10V (Shutter Close) TIME/DIV: 2S CN231 Pin # (I-DISH. SENS) VOLT/DIV: 2V TIME/DIV: 2S (NO DISC) Between CN001 VOLT/DIV: 1V...

  • Page 15: Test Mode

    TEST MODE 1. How to Activate CD Test Mode Insert the AC plug while pressing the CD function button. When activating the test mode, “TEST” appears on the screen then all indicators light (start mode). 2. How to Cancel the CD Test Mode Press the POWER button or disconnect the AC plug.
  • Page 16 4. Adjustment Result Display of Auto Adjustment Items The auto adjustment values of the focus and the tracking can be displayed on the screen. 4-1. Auto Adjustment Result Display of Focus Offset Cancel/Gain Set the start mode (all lamps light). Press the TAPE key until “F***”...
  • Page 17 IC DESCRIPTION IC, LC78641NE-D Pin No. Pin Name Description PDO1 Internal VCO control phase comparator output pin. (Pull down) Internal VCO control phase comparator output pin. PDO2 OFF for rough servo, ON for phase servo. (Pull down) VVSS — Internal VCO ground pin. PCKIST —...
  • Page 18 Pin No. Pin Name Description EFLG C1, C2 error correction monitor pin. (Not connected) TEST Test input pin. (Connected to GND) Emphasis pin. Which becomes an input pin after reset and can be controlled externally. EMPH This becomes an emphasis monitor pin under control by command. (Not connected) MUTEL L channel mute output pin.
  • Page 19 Pin No. Pin Name Description Synchronization signal detection output pin. FSEQ Outputs a high level when the synchronization signal detected from the EFM signal and the internally generated synchronization signal agree. (Not connected) Defect pin. Which becomes an input pin after reset and can be controlled externally. DEFECT This becomes the defect monitor pin under control by command.

  • Page 20: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW 1/1 P.C.B P.C.B AZA-3 P.C.B 3ZG-2 E2 CUSH CD A...

  • Page 21: Mechanical Parts List

    MECHANICAL PARTS LIST 1/1 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 86-ZG1-001-410 TRAY,5CD 31 86-ZG1-215-010 HLDR,CHUCK 2 84-ZG1-267-010 PULLEY,LOAD MO 8 32 86-ZG1-238-010 HLDR,MAGNET 6ZG N 3 87-A90-036-010 MOT ASSY,RF-300CA-11 33 86-ZG1-225-010 BELT,SQ1.2-32.9 4 86-ZG1-228-110 GEAR,TT-B 34 86-ZG1-221-010 PULLEY,TT...
  • Page 22 CD MECHANISM EXPLODED VIEW 1/1 (3ZG-2E2) P.C.B CD MECHANISM PARTS LIST 1/1 (3ZG-2E2) REF. NO PART NO. KANRI DESCRIPTION 1 83-ZG2-246-310 CHAS ASSY,SHT 5 2 83-ZG2-235-010 GEAR,A3 3 83-ZG2-205-210 GEAR,B 4 83-ZG2-236-010 GEAR,MOTOR 3 5 83-ZG2-253-110 SHAFT,SLIDE 5 6 87-A90-836-010 PICKUP,KSS-213F 7 83-ZG2-254-010 TURN TABLE,C5...

  • Page 23: Mechanical Section

    REFERENCE NAME LIST ELECTRICAL SECTION MECHANICAL SECTION DESCRIPTION REFERENCE NAME DESCRIPTION REFERENCE NAME ANTENNAS ADHESHIVE SHEET ADHESHIVE CHIP AZIMUTH C-CAP CAP, CHIP BAR-ANT BAR-ANTENNA C-CAP TN CAP, CHIP TANTALUM BATTERY C-COIL COIL, CHIP BATT BATTERY C-DI DIODE, CHIP BEARING C-DIODE DIODE, CHIP BUTTON C-FET...
  • Page 24 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 Printed in Singapore 0251431...

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