Aiwa CA-DW935M Service Manual
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Aiwa CA-DW935M Service Manual

Aiwa CA-DW935M 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. 09-997-413-5T1).
CA-DW935M
BASIC TAPE MECHANISM : TN-21ZFW-1791
BASIC CD MECHANISM : ZZG-4 YG
S/M Code No. 09-997-413-5R1
U

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Alec Richardson
July 1, 2025

My CD player is not working. Possibly a belt is needed for the drive. Is there a manual showing me how to open the unit and replace the belt?

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Summary of Contents for Aiwa CA-DW935M

  • Page 1 CA-DW935M SERVICE MANUAL COMPACT DISC CARRY BASIC TAPE MECHANISM : TN-21ZFW-1791 COMPONENT SYSTEM BASIC CD MECHANISM : ZZG-4 YG This Service Manual is the "Revision Publishing" and replaces "Simple Manual" (S/M Code No. 09-997-413-5T1). S/M Code No. 09-997-413-5R1...

  • Page 2: Specifications

    SPECIFICATIONS <General> <Tuner section> Power output 5 W + 5 W (4 ohms, EIAJ) (FM) FTC rule Tuning range 87.5 MHz to 108.0 MHz 4 watts per channel, Min. RMS at 4 ohms Antenna Rod antenna from 65 Hz to 5000 Hz, with no more than 1% total harmonic distortion (AM) Input...

  • 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 87-012-349-080 C-CAP,S 1000P-50 CH 87-010-380-080 CAP, ELECT 47-16V 87-A21-184-010 IC,TA2104AN 87-010-198-080 CAP, CHIP 0.022 87-A21-185-040 C-IC,LC72121M 87-015-819-080 CAPACITOR,0.01 8Z-CT1-610-010 C-IC,LC867232A-5L78 87-010-112-080 CAP, ELECT 100-16V 87-A20-914-010 IC,SPS-442-1-F 87-A21-116-040...
  • Page 5 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C340 87-010-374-080 CAP, ELECT 47-10V J202 87-009-610-010 JACK PIN 2P H EARH C341 87-018-205-080 CAP, CERA-SOL 0.022 J601 87-A60-420-010 JACK,3.5 ST (MSC) C343 87-018-123-080 CAP, CER 220P-50V J602 87-099-443-010 TERMINAL,SPKR 4P C344...
  • Page 6 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C409 87-010-248-080 CAP, ELECT 220-10V S1156 87-A91-024-080 SW,TACT KSH0611BT C410 87-010-405-080 CAP, ELECT 10-50V S1157 87-A91-024-080 SW,TACT KSH0611BT C411 87-018-209-080 CAP, CER 0.1-50V S1158 87-A91-024-080 SW,TACT KSH0611BT C414 87-012-153-080 C-CAP,S 120P-50 CH S1159...

  • Page 7: Chip Resistor Part Code

    REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 87-010-405-080 CAP, ELECT 10-50V SENSOR C.B 87-010-181-080 CAP, CHIP S 1800P 87-010-181-080 CAP, CHIP S 1800P CN202 87-A60-946-010 CONN,4P H 6232 87-010-196-080 CHIP CAPACITOR,0.1-25 Q202 87-026-674-010 P-TR,PT4850F 87-010-553-040 CAP,E 47-16 GAS Q212 87-026-674-010...

  • Page 8: Transistor Illustration

    TRANSISTOR ILLUSTRATION E C B E C B S D G 2SA952 2SA933S 2SJ460 2SA1318 2SC1740S 2SK2541 2SC1815 DTA114YS 2SC1923 DTA144ES 2SC2001 DTA144TS 2SD655 DTC114YS 2SD1468 DTC124XS KTC3198 DTC143ES DTC144ES KTA1267 B C E 2SB1370 2SC2712 2SB1443 DTC114TK DTC114YU DTC124XK LCD DIASPLAY...

  • Page 9: Ic Block Diagrams

    IC BLOCK DIAGRAMS IC, MM1454XFBE IC, TA8223K IC, LC72121M VCC2 VCC1 B.S 1 OUT1 Ch-1 RIPPLE BIAS CIRCUIT TERMINAL POWER THERMAL Cut-off PROTECTOR OUT2 Ch-2 B.S 2 PRE GND1 PRE GND2 IC, BH3862FS IC, TA2104AN VOL2 VOL1 OUT1 OUT2 LOGIC MUTE1 MUTE2 4.7K...
  • Page 10 SCHEMATIC DIAGRAM-1 (MAIN SECTION) AUTO STOP SENS. Q641, Q642 POWER AMP MUTE OFF Q754 Hi-SPEED Q756, Q757 REC STOP (PAUSE) SW...
  • Page 11 WIRING-1 (MAIN C.B SECTION) L005 J202 AUX/VIDEO Q345 Q346 SPEAKER IMP: 4Ω J601 PHONES R1722 (IC722)
  • Page 12 SCHEMATIC DIAGRAM-2 (FRONT/LED SECTION) REG. CD/µ-CON SW. CD µ-CON...
  • Page 13 WIRING-2 (FRONT C.B SECTION) POWER STANDBY/ON JR108 D113 D112 R1132 (C132) D111 TUNER/BAND FFC2 DOWN...
  • Page 14 IC DESCRIPTION IC, LC867232A-5L78 Pin No. Pin Name Description Pin No. Pin Name Description Clock output to TUNER PLL IC COIN Serial data output to CD DSP TUSW TUNER power switch Read/write control to CD DSP LED ROCK SQOUT Subcode Q data input from CD DSP LED POP CD DSP subcode Q output standby check input LED JAZZ...
  • Page 15 WIRING-3 (LED C.B, AC C.B SECTION) D1151~1155: (DISC1 ILLUMINATION) D1156~1160: (DISC2 ILLUMINATION) D1161~1165: (DISC3 ILLUMINATION) S1159 S1160 R166 DISK1 (D1166) S1158 S1161 DISK2 S1157 S1162 DISK3 S1156 S1155 S1154 S1153 S1152 S1151 HI-SPEED DUBBING/ TUNER MODE/OSC TUNING UP TUNING DOWN PRESET CLEAR AC120V...
  • Page 16 SCHEMATIC DIAGRAM-3 (CD SECTION)
  • Page 17 WIRING-4 (CD SECTION) TRAY NO. DET. SW TO A MAIN C. B CN203 SW201 (ELEVATOR MODE SW)
  • Page 18 IC DESCRIPTION-2 IC, LC78622ED Pin No. Pin Name Description Pin No. Pin Name Description DEFI Defect sense signal (DEF) input pin. (Connect to 0V when not used). XVDD — Crystal oscillator power supply pin. XOUT Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V. Pin to which external 16.9344 MHz crystal oscillator is connected.
  • Page 19 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 20 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 21: Test Mode

    TEST MODE The CA-DW935M has two types of test mode: conventional CD test mode and new mechanism test mode. 1) Starting CD test mode • Hold down the CD function key, and then plug the power cord into AC outlet: The CD test mode will start and "CD TES7"...
  • Page 22 2. Checking status of switches and sensors The switch/sensor ON/OFF status of mechanism can be checked using the display. SW/Sensor Ref. no. SW/Sensor status Display Frame OPEN/CLOSE SW SW204 Frame is at OPEN position. Frame is at intermediate position. Frame is at CLOSE position. Tray no.

  • Page 23: Electrical Adjustment

    ELECTRICAL ADJUSTMENT <TUNER SECTION> <DECK SECTION> MAIN C.B 1. AM VT Adjustment 5. Tape Speed Adjustment Settings: • Test point: TP1 (VT) Settings: • Test Tape: TTA-100 (TTA-111S) • Adjustment location: L004 • Test point: J602 (PHONES Jack) Method: Set to AM 1710 kHz and adjust L004 so that the test •...

  • Page 24: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW 1/1 MAIN C.B ZZG-4 YG SH,LCD FRONT C.B LED C.B 8ZK-B TN-21ZFW-1791 AC C.B...

  • Page 25: Speaker Exploded View

    44 87-A60-177-010 JACK,AC U W/SW 10 8Z-CT1-013-010 KEY,VOL 45 88-CT4-224-010 HLDR,ANT 11 8Z-CT1-017-010 WINDOW,CD 46 8Z-CT1-002-010 CABI,REAR 12 81-CD1-032-010 BADGE,AIWA 30J 47 8Z-CT4-041-010 PANEL,TOP ST 13 8Z-CT1-016-010 WINDOW,DISP 48 86-CT4-616-010 ANT,ROD 14 8Z-CT1-001-010 CABI,FRONT 49 87-CT4-037-110 COVER, BATT 15 8Z-CT1-005-010...

  • Page 26: Tape Mechanism Exploded View

    TAPE MECHANISM EXPLODED VIEW 1/1 LUG PLATE LUG PLATE 21 H...

  • 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 S1-921-030-4A0 HEAD BASE 41 S1-921-140-160 E ACTUATOR SPRING 2 S1-821-030-070 AZIMUTH SPRING 42 S1-921-093-040 FLYWHEEL ASSY 3 S1-921-030-090 PANEL P SPRING 43 S1-921-090-240 MAIN BELT 4 S1-921-260-050 GEAR PLATE SPRING...

  • Page 28: Cd Mechanism Exploded View

    CD MECHANISM EXPLODED VIEW 1/3 P.C.B 3ZG-2YE3NM P.C.B P.C.B LEVER LOCK C2 SPR-E LOCK C2 P.C.B...
  • Page 29 CD MECHANISM PARTS LIST 1/3 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 88-ZG5-241-010 LEVER,LOCK C 41 88-ZG5-279-010 LEVER ASSY,ROLLER L 2 88-ZG5-242-010 SPR-T,LOCK C 42 88-ZG5-287-010 ROLLER ASSY, 3 88-ZG5-206-010 GEAR,BASE A 43 87-B10-220-010 W-P,0.94-5-0.25 SLIT 4 88-ZG5-207-010 GEAR,BASE B...
  • Page 30 CD MECHANISM EXPLODED VIEW 2/3 P.C.B P.C.B 8ZG-5 P.C.B CD MECHANISM PARTS LIST 2/3 REF. NO PART NO. KANRI DESCRIPTION 1 88-906-191-110 FF-CABLE,6P 1.25 2 84-ZG2-612-110 CABLE,FFC 4P L=130 3 8Z-ZG4-613-010 FF-CABLE, 4P 1.0 210MM 4 8Z-ZG4-610-010 FF-CABLE, 16P 1.0 70MM PIC...
  • Page 31 CD MECHANISM EXPLODED VIEW 3/3 DRIVE C.B CD MECHANISM PARTS LIST 3/3 REF. NO PART NO. KANRI DESCRIPTION 1 83-ZG2-243-110 CHAS ASSY,SHT 2 83-ZG2-235-010 GEAR,A3 3 83-ZG2-205-210 GEAR,B 4 83-ZG2-236-010 GEAR MOTOR 3 5 83-ZG2-240-010 SHAFT,SLIDE 3 6 87-A90-836-010 PICKUP,KSS-213F 8 83-ZG2-233-010 TURN TABLE,A5 11 83-ZG2-245-110...
  • Page 32 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 Printed in Singapore 920074...

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