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) ×...
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.
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)
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...
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)
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...
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 —...
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: •...
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 <...
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.
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...
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 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...