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Aiwa AZG-7 Service Manual
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Aiwa AZG-7 Service Manual

Aiwa AZG-7 Service Manual

Md mechanism
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AZG-7
English
SERVICE MANUAL
MD MECHANISM
BASIC MD MECHANISM :
AZG-4YA
KMS-260B
TYPE
DM
S/M Code No. 09-001-338-4N2

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Summary of Contents for Aiwa AZG-7

  • Page 1 AZG-7 English SERVICE MANUAL MD MECHANISM BASIC MD MECHANISM : AZG-4YA KMS-260B TYPE S/M Code No. 09-001-338-4N2...

  • 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: Electrical Main Parts List

    ELECTRICAL MAIN PARTS LIST REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION CON905 87-A60-423-010 CONN,14P V TOC-B CON906 87-A60-422-010 CONN,8P V TOC-B 87-A20-707-010 C-IC,CXA2523AR R405 87-A50-189-080 C-COIL,S BLM21B272S 87-A20-708-010 C-IC,CXD2652AR 87-A21-419-040 C-IC,NJM14558MD-TE2 87-A20-709-040 C-IC,BD7910FV MD C.B 8A-ZG4-601-010 C-IC,CXP81952M-552R C100...
  • Page 4 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C321 87-012-274-080 CHIP CAP,U 1000P-50B C603 87-010-662-080 C-CAP,E 22-6.3 C322 87-012-274-080 CHIP CAP,U 1000P-50B C604 87-010-779-080 C-CAP,E 100-6.3 C323 87-012-274-080 CHIP CAP,U 1000P-50B C607 87-010-831-080 C-CAP,U,0.1-16F C324 87-012-274-080 CHIP CAP,U 1000P-50B C608 87-010-831-080...

  • Page 5: Transistor Illustration

    BLOCK DIAGRAM-1 (MD INTERFACE) CHIP RESISTOR PART CODE Chip Resistor Part Coding Figure Resistor Code Value of resistor Chip resistor Dimensions (mm) Wattage Type Tolerance Symbol Resistor Code Form 1/16W 1005 0.35 1/16W 1608 0.45 1/10W 2125 1.25 0.45 1/8W 3216 0.55 TRANSISTOR ILLUSTRATION...
  • Page 6 BLOCK DIAGRAM-2 (MD/MECHA/LOAD) MD C.B...

  • Page 7: Ic Block Diagram

    IC BLOCK DIAGRAM IC, BD7910FV IC, AK4519VF IC, BA5970FP...
  • Page 8 WIRING-1 (MD) MD C.B (COMPONENT SIDE) MD C.B (CONDUCTOR SIDE)
  • Page 9 SCHEMATIC DIAGRAM-1 (MD)
  • Page 10 WIRING-2 (MD INTERFACE/MECHA/LOAD) TO MD C.B CN400 TO MD C.B CN401...
  • Page 11 SCHEMATIC DIAGRAM-2 (MD INTERFACE)
  • Page 12 SCHEMATIC DIAGRAM-3 (MECHA/LOAD) WAVE FORM IC100 Pin ° (RF) VOLT/DIV: 0.5V TIME/DIV: 1mS CN201 Pin 1 (HEAD-B) VOLT/DIV: 10V CN201 Pin 4 (HEAD-A) TIME/DIV: 0.2µS...
  • Page 13 IC DESCRIPTION IC, CXA2523AR Pin No. Pin Name Description Input “I” RF signal converted to I-V. Input “J” RF signal converted to I-V. Output voltage for VCC/2. Input current for main beam servo signal A. Input current for main beam servo signal B. Input currentt for main beam servo signal C.
  • Page 14 Pin No. Pin Name Description COMPP User comparator non-inverted input pin. ADDC Capacitor connection pin for ADIP amplifier on return circuit. Not used. Non-inverted input pin for user operational amplifier. RF amplifier output pin. Check point for eye pattern. MORFI Input pin where Groove RF signal is AC coupled.
  • Page 15 IC, CXD2652AR Pin No. Pin Name Description MNT0 MNT1 Monitor output terminal. MNT2 MNT3 SWDT Microprocessor serial interface data input. SCLK Microprocessor serial interface shift clock input. XLAT Microprocessor serial interface latch input. Latched at falling down edge. SRDT Microprocessor serial interface data output. The terminal which outputs internal status in accordance with the address of the SENS microprocessor serial interface.
  • Page 16 Pin No. Pin Name Description Address output to external DRAM. Not used. DVSS — Digital GND. External DRAM output enable. ________ XCAS CAS output to external DRAM. Address output to external DRAM. ________ XRAS RAS output to external DRAM. Write enable for external DRAM. Data bus for external DRAM.
  • Page 17 Pin No. Pin Name Description DCHG Connected to the low impedance power supply. Error signal input to the laser digital APC. ADFG ADIP2 binary-converted FM signal (22.05±1 kHz) input. F0CNT Current source setting output terminal to CXA2523. XLRF Latch output for CXA2523 control. Latched at rise-up. CKRF Shift clock output for CXA2523 control.
  • Page 18 IC, CXP81952M-552R Pin No. Pin Name Description MCAS — MRAS — Not used. — AMUTE Audio mute signal output. Serial clock output for EEPROM interface. Serial data output for EEPROM interface. Serial data input for EEPROM interface. EEPROM chip select signal output. —...
  • Page 19 Pin No. Pin Name Description ARDY READY input signal for system control interface. Serial data input for system control interface. SOUT Serial data output for system control interface. ACLK Serial clock output for system control interface. XLAT Latch signal output for CXD2652 interface. XRST CXD2652 reset signal output.
  • Page 20 Pin No. Pin Name Description — Not used. Connected to VSS. Open. — Connected to VSS. — Connected to VDD. — — Not used. DRVMUTE BA5970FP mute signal output. — — Not used. — — RECP Laser power select signal output. Record data output enable signal output.
  • Page 21 MECHANISM EXPLODED VIEW 1/1 (AZG-7) AZG-4 A P.C.B MECHANISM PARTS LIST 1/1 (AZG-7) REF. NO PART NO. KANRI DESCRIPTION 87-ZGA-611-010 FF-CABLE, 8P 1.0 100MM 87-ZGA-612-010 FF-CABLE, 14P 1.0 100MM 8A-DB8-205-010 HLDR,MD 87-067-703-010 TAPPING SCREW, BVT2+3-10...
  • Page 22 MECHANISM EXPLODED VIEW 1/1 (AZG-4) CUSH-R,MECHA RE 7ZG-8 A1 CUSH-R,MECHA RE CUSH-R,MECHA RE P.C.B HLDR,SHLD BOT...
  • Page 23 MECHANISM PARTS LIST 1/1 (AZG-4) REF. NO PART NO. KANRI DESCRIPTION 87-ZG9-202-210 HLDR,SHLD TOP 8A-ZG4-611-010 PWB,FLEX 21P AZG-4 87-ZG9-604-010 FF-CABLE, 5P 1.25 100MM 87-ZG9-209-010 S-SCREW,MD TF 87-ZG9-208-010 S-SCREW,MD T 87-067-020-010 SCREW, VTT+3-4 87-067-421-010 VTT+2-4...
  • Page 24 MECHANISM EXPLODED VIEW 1/1 (7ZG-8) P.C.B. ZZG-D...
  • Page 25 MECHANISM PARTS LIST 1/1 (7ZG-8) REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 87-ZG8-220-210 PLATE ASSY,LATCH 87-ZG8-225-310 LEVER ASSY,CAM 87-ZG8-259-110 SPR-T,LATCH 87-ZG8-239-110 CAM,LOAD(*) 87-ZG8-230-210 LEVER,LATCH(*) 87-ZG8-272-010 LEVER,ASSY REC2 87-ZG8-224-110 SPR-E,LATCH 87-ZG8-213-210 PLATE,SLIDE R 87-ZG8-214-210 HLDR ASSY,CARTRIGE 87-ZG8-209-210 PLATE ASSY,SLIDE L 87-ZG8-233-110...
  • Page 26 MECHANISM EXPLODED VIEW 1/1 (ZZG-D) P.C.B...
  • Page 27 MECHANISM PARTS LIST 1/1 (ZZG-D) REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 87-ZG9-603-010 FF-CABLE, 8P 1.0 120MM 87-A91-490-010 MOT,BCD3B04 87-ZG3-216-010 SPR-P,RACK 8Z-ZGD-206-010 GEAR,LEAD 87-ZG3-211-010 SHAFT,GUIDE 87-341-035-210 SCREW,UT1+2-6 87-A91-444-010 PICKUP,KMS-260B 87-067-393-010 SCREW +1.4-1.4 8Z-ZGD-207-010 SPR-P,LEAD 8Z-ZGD-211-010 S-SCREW,VBT+1.7-5 8Z-ZGD-208-010 SHAFT,LEAD...
  • Page 28 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 Printed in Singapore 0251431...