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Aiwa CA-DW257 EZS Service Manual

Compact disc carry component system
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SERVICE MANUAL
COMPACT DISC CARRY
COMPONENT SYSTEM
This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
(S/M Code No. 09-003-339-4T3).
CA-DW257
BASIC TAPE MECHANISM : ZZM-2 YPR3NF
BASIC CD MECHANISM : DA11T3C
S/M Code No. 09-003-339-4R2
EZ(S)

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Summary of Contents for Aiwa CA-DW257 EZS

  • Page 1 CA-DW257 EZ(S) SERVICE MANUAL COMPACT DISC CARRY BASIC TAPE MECHANISM : ZZM-2 YPR3NF COMPONENT SYSTEM BASIC CD MECHANISM : DA11T3C This Service Manual is the "Revision Publishing" and replaces "Simple Manual" (S/M Code No. 09-003-339-4T3). S/M Code No. 09-003-339-4R2...

  • Page 2: Specifications

    SPECIFICATIONS • Design and specifications are subject to change without notice ACCESSORIES/PACKAGE LIST REF. NO PART NO. KANRI DESCRIPTION 1 8A-CT9-906-010 IB,EZ(9L)FM 2 8Z-CDK-962-010 RC UNIT,RC-ZAT02(VS) 3 87-A80-036-010 AC CORD SET ASSY,E W/FLTR VOL...

  • Page 3: 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 4: Electrical Main Parts List

    ELECTRICAL MAIN PARTS LIST REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 87-010-188-080 CAP,CHIP 6800P 87-016-669-080 C-CAP,S 0.1-25 K B 87-A20-955-010 IC,LA1828 87-016-669-080 C-CAP,S 0.1-25 K B 87-A21-090-010 IC,LA4600 87-010-992-080 C-CAP,S 0.047-25 B 87-A21-520-040 C-IC,M61509FP 87-010-992-080 C-CAP,S 0.047-25 B 87-020-828-010 IC,BA3416BL...
  • Page 5 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C317 87-010-382-080 CAP, ELECT 22-25V C457 87-010-312-080 C-CAP,S 15P-50 CH C318 87-010-382-080 CAP, ELECT 22-25V C458 87-010-312-080 C-CAP,S 15P-50 CH C319 87-010-405-080 CAP, ELECT 10-50V C459 87-010-263-080 CAP, ELECT 100-10V C320 87-010-405-080 CAP, ELECT 10-50V...
  • Page 6 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 87-A50-343-010 COIL,FM OSC EX J801 8A-CT9-630-010 JACK,MIC ST SW 87-A50-336-010 COIL,AM IFT (TOKO) L601 87-003-149-080 COIL,47UH 87-A50-335-010 COIL,FM IFT (TOKO) L602 87-005-849-080 COIL,10UH(CECS) 87-A50-334-010 COIL,FM DET (TOKO) L801 87-003-098-080 FIXED IND 2.2UH K TP26 87-005-849-080...

  • Page 7: Lcd Display

    LCD DISPLAY • Regarding connectors, they are not stocked as they are not the initial order items. The connectors are available after they are supplied from connector manufacturers upon the order is received. CHIP RESISTOR PART CODE Chip Resistor Part Coding Figure Resistor Code Value of resistor...
  • Page 8 WIRING-1 (MAIN/FRONT)
  • Page 9 SCHEMATIC DIAGRAM-1 (MAIN)
  • Page 10 SCHEMATIC DIAGRAM-2 (CD)
  • Page 11 SCHEMATIC DIAGRAM-3 (TUNER)
  • Page 12 SCHEMATIC DIAGRAM-4 (FRONT)
  • Page 13 WIRING-2 (PWR, MOTOR) SCHEMATIC DIAGRAM-5 (POWER) MOTOR C.B (SLED MOTOR) (INSIDE LIMIT SW) (SPINDLE MOTOR)

  • Page 14: Electrical Adjustment

    ELECTRICAL ADJUSTMENT < TUNER SECTION > < TAPE SECTION > 1. LW Freq. Range Adjustment 10. Tape speed Adjustment L016 ............... 145kHz Settings: • Test tape: TTA-100 FRONTC.B MAINC.B TC005 ..............295kHz • Test point: J251 (PHONES jack) • Adjustment location: SFR761 L008 2.
  • Page 15 IC BLOCK DIAGRAM IC, LA6541D IC, M61509 mono. SW Control logic IC, LA1828 IC, BA3416BL DECK R DECK L DECK R DECK L R OUT L OUT TAPE SELECT...

  • Page 16: Voltage Chart

    VOLTAGE CHART...
  • Page 18 IC DESCRIPTION IC, LA9241ML Pin No. Pin Name Description Pin to which external pickup photo diode is connected. RF signal is created by adding FIN2 with the FIN1 pin signal. FE signal is created by subtracting from the FIN1 pin signal. FIN1 Pin to which external pickup photo diode is connected.
  • Page 19 Pin No. Pin Name Description Pin from which TES signal is output to DSP. “High Frequency Level” is used to judge whether the main beam position is on top of bit or on top of mirror. SLOF Sled servo off control input pin. 39, 40 CV–, CV+ CLV error signal input pin from DSP.
  • Page 20 IC, LC78622ED Pin No. Pin Name Description DEFI Defect sense signal (DEF) input pin. (Connect to 0V when not used). Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V. Phase comparator output pin to control external VCO. VVSS —...
  • Page 21 Pin No. Pin Name Description XVDD — Crystal oscillator power supply pin. XOUT Pin to which external 16.9344 MHz crystal oscillator is connected. XVSS — Crystal oscillator GND pin. Be sure to connect to 0V. SBSY Subcode block sync signal output pin. EFLG C1, C2, single and dual correction monitoring pin.
  • Page 22 IC, LC867132V-5P07 Pin No. Pin Name Description O-RMC/CE CD read/write control output and TU CE. O-DATA Data output to M62495FP. O-CLK Output CLK to tuner PLL.(Not connected) — — Not Connected. O-CK SFT Clock shift output of the microcomputer. I-HOLD Hold status detection.
  • Page 23 Pin No. Pin Name Description O-TU LED LED ON/OFF control output for TU functions. O-TA LED LED ON/OFF control output for TAPE functions. (Not Connected) O-ROCK LED LED ON/OFF control output for ROCK. O-POP LED LED ON/OFF control output for POP. O-JAZZ LED LED ON/OFF control output for JAZZ.

  • Page 24: Mechanical Parts List

    SPR-P,REC A 60 88-CT6-022-010 COVER, HNDL 16 8A-CT9-023-010 BTN,QSOUND 61 86-CT6-035-010 LID,BATT RF 17 8A-CT9-052-010 BTN,GEQ EX 62 87-B00-010-010 BADGE,AIWA 30.5-5.2 S 2.5L 18 87-063-165-010 OIL-DMPR 150 63 8A-CT9-030-010 NET,SPKR 19 8A-CT9-015-010 BTN,VOL 64 8A-CT9-027-010 FRAME,SPKR NET 20 8A-CT9-012-010 BTN,CD B...

  • Page 25: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW 1/1 P.C.B GEAR, POINTER P.C.B P.C.B HT-SINK P.C.B P.C.B ZZM-2...

  • Page 26: Tape Mechanism Exploded View

    TAPE MECHANISM EXPLODED VIEW 1/1 TERMINAL,LB1 TERMINAL,LB1...

  • Page 27: Tape Mechanism Parts List

    TAPE MECHANISM PARTS LIST 1/1 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 8Z-ZM1-254-210 SPR-C,REEL R 34 8Z-ZM1-226-010 GEAR,REEL L 2 8Z-ZM1-225-110 GEAR,REEL R 35 8Z-ZM1-241-010 SPR-T,PLAY 3 8Z-ZM1-253-110 SPR-C,AUTO SENSOR 36 8Z-ZM1-220-110 LEVER,REC SENSOR 4 8Z-ZM1-217-110 LEVER,AUTO SENSOR 37 8Z-ZM1-249-010...

  • Page 28: Cd Mechanism Exploded View

    CD MECHANISM EXPLODED VIEW 1/1 SHAFT,SLIDE SF-P101NR CHASSIS SPINDLE MOTOR C,B MOTOR(M3)
  • Page 29 CD MECHANISM PARTS LIST 1/1 REF. NO PART NO. KANRI DESCRIPTION 1 S2-121-A28-400 COVER GEAR 2 S2-511-A21-000 GEAR MIDDLE 3 S2-511-A21-100 GEAR,DRIVE A S1-PN2-03R-OSE SCR PAN PCS 2-3 B 87-261-073-410 SCR S-TPG FLT 2.6-6 ALL M8-ZZK-E90-070 DA11T3C...
  • Page 30 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 931169 Printed in Singapore...

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