Aiwa CDC-Z137 Service Manual

Fm/am compact disc player

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SERVICE MANUAL
Ver 1.0 2003. 01
• The tuner and CD sections have no adjustments.
RADIO SECTION
(FM)
Frequency Range: 87.5 MHz – 108 MHz
Usable Sensitivity: 12.7 dBf
50 dB Quieting Sensitivity: 17.2 dBf
IF Rejection: 100 dB
Frequency Response: 30 Hz – 15,000 Hz
S/N Ratio: 70 dB
Stereo Separation: 35 dB at 1 kHz
Alternate Channel Selectivity: 90 dB
Capture Ratio: 3 dB
(AM)
Frequency Range: 530 kHz – 1,710 kHz
Usable Sensitivity: 30 µV (30 dB)
Sony Corporation
9-877-002-01
2003A0400-1
e Vehicle Company
© 2003. 01
Published by Sony Engineering Corporation
CDC-Z137
Model Name Using Similar Mechanism
CD Drive Mechanism Type
Optical Pick-up Name
SPECIFICATIONS
CD SECTION
Frequency Response: 17 Hz – 20 kHz +0/–3 dB
Dynamic Range: More than 85 dB
Channel Separation: More than 60 dB
S/N Ratio: More than 90 dB
Wow/Flutter: Unmeasurable
AUDIO SECTION
Max. Power Output: 45 W × 4 channels
AUX Input
Input sensitivity (load impedance) AUX: 300 mV (10 kΩ)
FM/AM COMPACT DISC PLAYER
US Model
Canadian Model
NEW
MG-930A-185
OPTIMA-752B2
– Continued on next page –
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Summary of Contents for Aiwa CDC-Z137

  • Page 1 CDC-Z137 SERVICE MANUAL US Model Canadian Model Ver 1.0 2003. 01 • The tuner and CD sections have no adjustments. Model Name Using Similar Mechanism CD Drive Mechanism Type MG-930A-185 Optical Pick-up Name OPTIMA-752B2 SPECIFICATIONS RADIO SECTION CD SECTION (FM) Frequency Response: 17 Hz –...
  • Page 2 CDC-Z137 GENERAL Power-Supply Voltage: 14.4 V (11 to 16 V allowable), DC, negative ground Load Impedance: 4 Ω Tone Control: Bass ±10 dB at 100 Hz, Treble ±10 dB at 10 kHz Preamp Output Voltage (load impedance): 2.2 V (10 kΩ) Installed size: 182 (W) ×...
  • Page 3: Table Of Contents

    CDC-Z137 TABLE OF CONTENTS 1. GENERAL Connections ................4 2. DISASSEMBLY 2-1. Front Panel Assy ..............6 2-2. CD Mechanism Block ............6 2-3. Cover ................... 7 2-4. Key Board ................7 2-5. Aux Board ................8 2-6. Removal The Solders ............8 2-7.
  • Page 4 CDC-Z137 SECTION 1 GENERAL This section is extracted from instruction manual.
  • Page 5: Disassembly

    CDC-Z137 SECTION 2 DISASSEMBLY Note : This set can be disassemble according to the following sequence. 2-1. FRONT PANEL ASSY (Page 6) 2-2. CD MECHANISM BLOCK (Page 6) 2-3. COVER 2-9. SUB BOARD (Page 7) (Page 10) 2-10. SERVO BOARD 2-4.
  • Page 6: Front Panel Assy

    CDC-Z137 Note : Follow the disassembly procedure in the numerical order given. 2-1. FRONT PANEL ASSY 2 screw (TH2.6x4) claws claw 3 front panel assy claw 1 screw (TH2.6x4) claws 2-2. CD MECHANISM BLOCK 2 PTT 2.6x6 6 P 2.6x4 4 screw (2.6x8)
  • Page 7: Cover

    CDC-Z137 2-3. COVER 4 MAIN board section 1 PTP 2.6x4 3 insulation sheet 2 cover 2-4. KEY BOARD claw claw 1 screw (2.6x8) claw KEY board 3 KEY board MAIN board 2 Removal the solders.
  • Page 8: Aux Board

    CDC-Z137 2-5. AUX BOARD 3 screws (2.6x8) 2 screws (2.6x8) 8 holder (PWB) 1 screws (2.6x8) 7 AUX board 4 Removal the solders. 6 screws (2.6x8) 2-6. REMOVAL THE SOLDERS 3 Removal the solder. 1 Removal the solder. 2 Removal the solder.
  • Page 9: Main Board

    CDC-Z137 2-7. MAIN BOARD 4 side chassis (L) 1 PTT 2.6x6 3 PTT 2.6x6 6 MAIN board 2 PTT 2.6x6 5 side chassis (R) 2-8. HEAT SINK 1 screw (2.6x8) 2 P 3x12 3 PTT 2.6x8 4 heat sink...
  • Page 10: Sub Board

    CDC-Z137 2-9. SUB BOARD 2 P 1.4x2 3 SUB board 1 Removal the solders. blue brown black 2-10. SERVO BOARD 2 PIC2 FLEXIBLE board 1 Removal the solders. black 5 SERVO board 3 PTT 2x3 4 screws (M1.7x4)
  • Page 11: Floating Block Assy

    CDC-Z137 2-11. FLOATING BLOCK ASSY 2 tension spring qd floating block assy 1 tension spring 3 tension spring 8 claw 4 tension spring qs oil-damper 5 tension spring 7 claw qa oil-damper 6 claw 2-12. LEVER ASSY (CD UP HOLDER) 1 P 1.4x2...
  • Page 12: Lever (Cd Roller) Sub Assy

    CDC-Z137 2-13. LEVER (CD ROLLER) SUB ASSY 3 lever (CD roller) sub assy 2-14. LEVER ASSY (CD HOLDER) 4 lever assy (CD holder) 2 special screw 1 torsion spring...
  • Page 13: Motor (Sled) Sub Assy

    CDC-Z137 2-15. MOTOR (SLED) SUB ASSY 1 P 1.7x2 2 motor (sled) sub assy 2-16. PICK-UP SUB ASSY 1 B 1.4x5 2 leaf spring 3 pick-up sub assy...
  • Page 14 CDC-Z137 MEMO...
  • Page 15: Diagrams

    CDC-Z137 SECTION 3 DIAGRAMS 3-1. IC PIN DESCRIPTIONS • IC202 LC78622NE (DIGITAL SIGNAL PROCESSOR) (SERVO BOARD) Pin No. Pin Name Pin Description DEFI Defect detection signal (DEF) input (Must be connected to 0 V when unused.) Test input pin A pull-down resister is built-in. Must be connected to 0 V.
  • Page 16 CDC-Z137 Pin No. Pin Name Pin Description RMUTE Right channel mute signal output General-purpose input/output pin 8 XVDD — Crystal oscillator power supply pin XOUT Connections for a 16.9344 MHz crystal oscillator element pin XVSS — Crystal oscillator ground pin Must be connected to 0 V.
  • Page 17 CDC-Z137 • IC901 LC72358N-9B50 (SYSTEM CONTROL) (MAIN BOARD) Pin No. Pin Name Pin Description System clock oscillator input (4.5 MHz) TEST2 — Not used. (Open) CD DATA IN — Not used. (Open) — Not used. (Open) — Not used. E-VOL DO...
  • Page 18 CDC-Z137 Pin No. Pin Name Pin Description LCD-DI LCD driver date signal input REMOTE IN Remote controller input, pulled up when not used, only CDC-X437 US model. Not used. (Open) FM/AM power switch output “H”=AM, “L”=FM FM/AM power switch output “L”=AM, “H”=FM —...
  • Page 19: Block Diagram -Cd Section

    CDC-Z137 3-2. BLOCK DIAGRAM — CD SECTION — LP UP CQCK RF AMP,ANALOG SERVO, ANALOG SIGNAL PROCESSOR COIN IC201 56 54 CQCK SQOUT SQOUT 4.2M DEFI X201 16.934MHz XOUT CD-DA/CD-RW LASER EFMO SWITCHING DRIVE RFS- OPTICAL PICK-UP Q202-205 Q206 BLOCK...
  • Page 20: Block Diagram -Main Section

    CDC-Z137 3-3. BLOCK DIAGRAM — MAIN SECTION — ELECTRONIC VOLUME AUX-RCH J731 IC401 J401 AUX(L) LROUT J101 TUN(L) AUDIO OUT VOL/ FADER (ANTENNA) LFOUT AMANT REAR CD(L) TONE R-CH POWER AMP 2 FMANT TUN-RCH MUTE MUTE IC501 CNP801 Q402 Q401...
  • Page 21: Block Diagram -Front Section

    CDC-Z137 3-4. BLOCK DIAGRAM — FRONT SECTION — 3-5. CIRCUIT BOARDS LOCATION LCD DRIVER SERVO board IC601 SUB board RESET LCD601 S619 LIQUID • (RESET) CRYSTAL COM1 DISPLAY COM3 LCD DI LCD CLO LCD CE LCD DO MAIN SECTION tuner unit...
  • Page 22: Printed Wiring Boards -Cd Mechanism Section

    CDC-Z137 3-6. PRINTED WIRING BOARDS — CD MECHANISM SECTION — • Refer to page 21 for Circuit Boards Location. THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) for schematic diagram: •...
  • Page 23 CDC-Z137 • Semiconductor Location Ref. No. Location IC201 IC202 IC203 Q201 G-10 Q202 Q203 Q204 Q205 Q206 (Q207) Q208 ): SIDE B (Page 25)
  • Page 24: Schematic Diagram -Cd Mechanism Section

    CDC-Z137 • Refer to page 21 for Waveforms. 3-7. SCHEMATIC DIAGRAM — CD MECHANISM SECTION — • Refer to page 30 for IC Block Diagrams. C231 R297 C238 C233 C201 C202 R246 R201 C232 C230 C237 R296 R295 C236 R265...
  • Page 25: Printed Wiring Boards -Main Section

    CDC-Z137 3-8. PRINTED WIRING BOARDS — MAIN SECTION — • Refer to page 21 for Circuit Boards Location. JW109 • Semiconductor Location Ref. No. Location Ref. No. Location D101 IC401 IC501 D441 D451 IC901 D501 IC941 F-11 D502 D503 Q101...
  • Page 26: Schematic Diagram -Main Section (1/2)

    CDC-Z137 • Refer to page 21 for Waveform. 3-9. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 30 for IC Block Diagram. TU101 R401 R403 R405 JR12 L102 C411 C116 C401 R113 D101 L101 R119 J101 R101...
  • Page 27: Schematic Diagram -Main Section (2/2)

    CDC-Z137 3-10. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — • Refer to page 30 for IC Block Diagram. Note: C417 R411 R415 • Voltage is dc with respect to ground under no-signal conditions. Q401 no mark : FM ) : AM <...
  • Page 28: Printed Wiring Board -Front Section

    CDC-Z137 3-11. PRINTED WIRING BOARD — FRONT SECTION — • Refer to page 21 for Circuit Boards Location. LED653 LED652 LED672 LED651 LED671 (Page 25) • Semiconductor Location Ref. No. Location Ref. No. Location IC601 LED661 LED671 LED643 LED672 LED651...
  • Page 29: Schematic Diagram -Front Section

    CDC-Z137 3-12. SCHEMATIC DIAGRAM — FRONT SECTION — • Refer to page 31 for IC Block Diagrams. S619 S621 S605 R609 S606 R608 S601 R607 S602 (Page 26) R606 JR685 R605 JR671 S611 S608 S612 S610 R615 R613 R614 R616...
  • Page 30: Ic Block Diagrams

    CDC-Z137 3-13. IC BLOCK DIAGRAMS IC201 LA9241M (SERVO Board) IC401 LC75421M-TLM-E (MAIN Board) LROUT RROUT RF DET LFOUT RFOUT FIN2 FIN1 DGND ∞ COM INTERFACE INTERFACE RFS- LFIN 32 RFIN LOUT ROUT RFSM RF AMP TESI T.SERVO & T. LOGIC...
  • Page 31 CDC-Z137 IC601 LC75853NW (KEY Board) 32 S32 COMMON KEY SCAN DRIVER KEY BUFFER 27 S27 TEST VDD1 VDET VDD2 CONTROL REGISTER CLOCK GENERATOR SHIFT REGISTER SEGMENT DRIVER & LATCH INTERFACE...
  • Page 32: Exploded Views

    CDC-Z137 SECTION 4 EXPLODED VIEWS NOTE: • The mechanical parts with no reference • Color Indication of Appearance Parts The components identified by mark 0 or dotted line with mark number in the exploded views are not supplied. Example : 0 are critical for safety.
  • Page 33: Front Panel Section

    CDC-Z137 4-2. FRONT PANEL SECTION supplied supplied not supplied supplied not supplied supplied supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-3383-549-1 PANEL ASSY, FRONT 3-249-411-01 LENS (RTRY) X-3383-551-1 BUTTON ASSY 3-249-410-01 LENS (PRESET)
  • Page 34: Cd Mechanism Section (1)

    CDC-Z137 4-3. CD MECHANISM SECTION (1) (MG-930A-185) not supplied not supplied (SERVO board) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-3383-090-1 CHASSIS ASSY, HOLDER BNF 3-250-990-01 SHEET (CLAMP) 1-687-801-11 FF-CABLE BOARD 3-250-943-01 LEVER (CD HOLDER)
  • Page 35: Cd Mechanism Section (2)

    CDC-Z137 4-4. CD MECHANISM SECTION (2) (MG-930A-185) supplied supplied supplied The components identified by Les composants identifiés par une mark 0 or dotted line with mark marque 0 sont critiques pour 0 are critical for safety. la sécurité. Replace only with part number Ne les remplacer que par une piéce...
  • Page 36: Electrical Parts List

    CDC-Z137 SECTION 5 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since The components identified by mark 0 or dotted line with mark the parts list may be different from the they are seldom required for routine service.
  • Page 37 CDC-Z137 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R609 1-216-821-11 METAL CHIP 1/10W C140 1-162-968-11 CERAMIC CHIP 0.0047uF 10% R611 1-216-821-11 METAL CHIP 1/10W C174 1-162-927-11 CERAMIC CHIP 100PF R613 1-216-821-11 METAL CHIP 1/10W...
  • Page 38 CDC-Z137 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C811 1-164-227-11 CERAMIC CHIP 0.022uF < IC > C812 1-124-233-11 ELECT 10uF C813 1-124-233-11 ELECT 10uF IC401 8-759-827-11 IC LC75421M-TLM-E C814 1-164-227-11 CERAMIC CHIP 0.022uF IC501...
  • Page 39 CDC-Z137 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < RESISTOR > R507 1-216-835-11 METAL CHIP 1/10W R508 1-216-835-11 METAL CHIP 1/10W R101 1-216-857-11 METAL CHIP 1/10W R509 1-216-833-11 METAL CHIP 1/10W R102 1-216-820-11 METAL CHIP...
  • Page 40 CDC-Z137 MAIN SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R930 1-216-845-11 METAL CHIP 100K 1/10W C232 1-107-826-11 CERAMIC CHIP 0.1uF R933 1-216-821-11 METAL CHIP 1/10W C233 1-124-584-00 ELECT 100uF R934 1-216-821-11 METAL CHIP 1/10W...
  • Page 41 CDC-Z137 SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R212 1-216-824-11 METAL CHIP 1.8K 1/10W R271 1-216-840-11 METAL CHIP 1/10W R213 1-216-833-11 METAL CHIP 1/10W R272 1-216-839-11 METAL CHIP 1/10W R214 1-216-833-11 METAL CHIP 1/10W...
  • Page 42 CDC-Z137 Ref. No. Part No. Description Remark PARTS FOR INSTALLATION AND CONNECTIONS *************************************** 3-250-171-01 FRAME, FITTING 3-251-083-01 HOLDER, REAR X-3383-233-1 SCREW ASSY (A) 3-251-080-01 KEY, FRAME...
  • Page 43 CDC-Z137 MEMO...
  • Page 44 CDC-Z137 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision...

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