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Sony CDP-M7 Service Manual
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Sony CDP-M7 Service Manual

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SERVICE MANUAL
CDP-M7 is the CD player section
in DHC-MD7.
MICROFILM
CDP-M7
Model Name Using Similar Mechanism
CD Mechanism Type
Base Unit Type
Optical Pick-up Type
SPECIFICATIONS
Design and specifications are subject to change without notice.
— 1 —
US Model
Canadian Model
Tourist Model
NEW
CDM38A-5BD19
BU-5BD19
KSS-213B/K-N
COMPACT DISC PLAYER
E Model

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Summary of Contents for Sony CDP-M7

  • Page 1 CDP-M7 SERVICE MANUAL US Model Canadian Model E Model Tourist Model CDP-M7 is the CD player section in DHC-MD7. Model Name Using Similar Mechanism CD Mechanism Type CDM38A-5BD19 Base Unit Type BU-5BD19 Optical Pick-up Type KSS-213B/K-N SPECIFICATIONS Design and specifications are subject to change without notice.

  • Page 2: Table Of Contents

    MODEL IDENTIFICATION TABLE OF CONTENTS — BACK PANEL — 1. SERVICING NOTE ............2. GENERAL ..............Parts No. 3. DISASSEMBLY 3-1. Case, Front Panel Assembly and Chassis ......7 PARTS No. 3-2. Back Panel and Tray ............7 US,Canadian model 4-977-697-2π...
  • Page 3 PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE REPLACE THESE COMPONENTS WITH SONY PARTS FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. DONNÉS DANS...
  • Page 4 SECTION 1 SERVICE NOTE NOTES ON LASER DIODE EMISSION CHECK NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick-up The laser diode in the optical pick-up block may suffer electrostatic block.
  • Page 5 If the other units are not available, use a service box (PFJ-1) and jig (J-2501-078-A). In this case, press the p button and TIME button and §OPEN/CLOSE button simultaneously to turn on the power. [Connection Diagram] SERVICE BOX (PFJ-1) UNIT (CDP-M7) (J-2501-078-A) POWER SW FH-E939,838,937...

  • Page 6: General

    SECTION 2 This section is extracted from instruction manual. GENERAL — 6 —...

  • Page 7: Disassembly

    SECTION 3 DISASSEMBLY 3-1. CASE, FRONT PANEL ASSEMBLY AND CHASSIS 1 Two screws 3 Screw (CASE 3 TP2) (BVTT 3X8) 6 Two screws (BVTP 3X10) 4 Case 8 Front panel assemby 2 Two screws (CASE 3 TP2) !™ Two screws (BVTP 3X10) !¢...

  • Page 8: Main Board And Connector Board

    3-3. MAIN BOARD AND CONNECTOR BOARD 1 Connector 5 Screw (BVTP 3X8) 2 Three screws (CN303) (BVTP 3X10) 6 Connector board 7 Flat type wire (8 CORE) (CN702) 3 Main board 4 Flat type wire (19 core) CN302 3-4. BASE UNIT 1 Yoke bracket 2 Yoke bracket 3 Base unit block...

  • Page 9: Electrical Adjustment

    SECTION 4 ELECTRICAL ADJUSTMENTS Note: S Curve Check 1. CD Block is basically designed to operate without adjustment. Therefore, check each item in order given. oscilloscope 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. BD board 3. Use an oscilloscope with more than 10M impedance. 4.
  • Page 10 E-F Balance Check Adjustment Location [BD BOARD] — Component Side — oscilloscope BD board TP (TEO) RV101 TP (VC) IC101 Procedure: RV103 1. Connect a lead wire to the test point TP501 on Display board. 2. Connect oscilloscpe to test point TP (TEO) on BD board. 3.

  • Page 11: Diagrams

    SECTION 5 DIAGRAMS 5-1. CIRCUIT BOARDS LOCATION BD board MOTOR (TURN) board CONNECTOR board SENSOR board MOTOR (SLIDE) board PANEL board MAIN board DISPLAY board — 11 —...

  • Page 12: Ic Pin Function

    5-2. IC PIN FUNCTION • IC501 SYSTEM CONTROL (µPD780205GF-016-3BA) Function Pin No. Pin Name – Power supply. (+5V) PWMSW Pulse width modulation select switch for turn table. (Not used) DISC SENS Slit sensor input of disc table. “L”: None , “H”: Load TABLE R Table motor control signal output.
  • Page 13 Pin No. Pin Name Function LED JOG LED drive signal output. LED ENT Disctray address detect encoder input. 43 to 45 E3 to E1 Power supply (+5V) – 47 to 49 LED DP3 to LED DP1 LED drive signal output. 50 to 52 DE3 to DE1 53 to 78...

  • Page 21: Exploded Views

    A-4673-995-A PANEL BOARD, COMPLETE (SP,HK,JE) 4-979-212-01 SPRING (LID-L) A-4673-999-A PANEL BOARD, COMPLETE (US,CND) 4-977-681-01 PANEL, FRONT 1-776-043-11 WIRE (FLAT TYPE)(31 CORE) 4-962-708-01 EMBLEM (4-A), SONY 4-951-620-01 SCREW (2.6X8), +BVTP 4-977-685-01 BUTTON (MODE) 4-977-699-11 LEG (F) 4-977-687-01 BUTTON (SKIP) 4-965-822-01 FOOT...

  • Page 22: Back Panel And Disc Table Section

    6-2. BACK PANEL AND DISC TABLE SECTION M701 not supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-917-583-21 BRACKET, YOKE * 58 4-977-697-21 PANEL, BACK (US,CND) 4-977-945-01 TRAY (TURN) * 59 1-658-480-11 SENSOR BOARD X-4946-295-2 SHAFT ASSY, WORM 4-977-943-01 BELT (TURN)(1.2) 4-977-941-01 BEARING (WORM)

  • Page 23: Mechanism Dick Section (Cdm38A-5Bd19)

    6-3. MECHANISM DICK SECTION (CDM38A-5BD19) not supplied not supplied M801 BU-5BD19 S811 not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-917-583-21 BRACKET, YOKE 4-933-134-01 SCREW (+PTPWH M2.6X6) 4-977-954-01 PULLEY (SL) * 112 1-658-482-11 MOTOR (SLIDE) BOARD 4-977-953-01 GEAR (SL-A) X-4946-296-1 HOLDER (BU) ASSY 4-977-955-01 GEAR (SL-B)

  • Page 24: Base Unit Section (Bu-5Bd19)

    6-4. BASE UNIT SECTION (BU-5BD19) M101 (including M102 r A) S101 The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Les composants identifiés par une marque ! sont critiques pour la sécurité.

  • Page 25: Electrical Parts List

    SECTION 7 ELECTRICAL PARTS LIST Note: • Due to standardization, replacements in the parts • CAPACITORS The components identified by mark list may be different from the parts specified in the uF : µ F ! or dotted line with mark ! are diagrams or the components used on the set.
  • Page 26 DISPLAY Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < VIBRATOR > R116 1-216-061-00 METAL CHIP 3.3K 1/10W R117 1-216-069-00 METAL CHIP 6.8K 1/10W X101 1-579-280-11 VIBRATOR, CRYSTAL (16.9344MHz) R118 1-216-049-91 METAL GLAZE 1/10W R119 1-216-089-91 METAL GLAZE 1/10W ************************************************************ R120...
  • Page 27 DISPLAY MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R514 1-249-417-11 CARBON 1/4W F R582 1-249-441-11 CARBON 100K 1/4W R515 1-247-834-11 CARBON 1.3K 1/4W R583 1-249-441-11 CARBON 100K 1/4W R516 1-249-421-11 CARBON 2.2K 1/4W F R521 1-249-423-11 CARBON 3.3K...
  • Page 28 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C305 1-126-964-11 ELECT 10uF D315 8-719-200-82 DIODE 11ES2 C306 1-126-966-11 ELECT 33uF D316 8-719-200-82 DIODE 11ES2 C307 1-126-768-11 ELECT 2200uF D317 8-719-200-82 DIODE 11ES2 C308 1-126-964-11 ELECT 10uF D318 8-719-200-82 DIODE 11ES2...
  • Page 29 PANEL MAIN MOTOR (SLIDE) MOTOR (TURN) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R305 1-247-807-31 CARBON 1/4W 1-658-481-11 MOTOR (TURN) BOARD R306 1-249-437-11 CARBON 1/4W ******************* R307 1-249-413-11 CARBON 1/4W F < CAPACITOR > R308 1-249-413-11 CARBON 1/4W F R309...
  • Page 30 PANEL SENSOR CONNECTOR Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D611 8-719-032-98 DIODE SEL5820A (DISC3)(RED) S607 1-554-303-21 SWITCH, TACTILE (ENTER) D612 8-719-032-98 DIODE SEL5820A (DISC3)(RED) D613 8-719-313-43 DIODE SEL6210S-TH10 (SELECTOR) D614 8-719-046-44 DIODE SEL5221S (ENTER) ************************************************************ <...
  • Page 31 Ref. No. Part No. Description Remark ************** HARDWARE LIST ************** 7-621-255-15 SCREW +P 2X3 7-621-775-10 SCREW +B 2.6X4 7-685-646-79 SCREW +BVTP 3X8 TYPE2 N-S 7-685-647-79 SCREW +BVTP 3X10 TYPE2 N-S 7-685-872-09 SCREW +BVTT 3X8 (S) — 45 —...
  • Page 32 CDP-M7 English 96E097038-1 Printed in Singapore Sony Corporation © 1996. 5 9-960-345-11 Home A&V Products Company Published by Quality Engineering Dept. (Shibaura) (SP) — 46 —...

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