Sony MDP-740D High Quality Service Manual

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1. GENERAL

• Location and Function of Parts and Controls Front Panel

• Remote Commander

• Rear Panel

• To Connect to Audio System and to TV with Audio/Video Inputs and EUROCONNECTOR

• To Connect to Audio System and TV with Audio/Video Inputs

• Screen Messages

• To Play a Disc Starting Playback

• Advanced Playback

• To Change Playback Speed and Direction Speed Play

• To Play Frame by Frame – Step Playback

• To Search for a Particular Scene Dual Speed Scan

• Chapter/Track Search

• Frame Search

• Time Search

• To Play Particular Portions of a Disc Repeat Playback

• Program Playback

• To Search for a Particular Track

• To Listen Only to Particular Track (S) Repeat Playback

• Program Playback

• To Change Time Display (AV TIME)

2. DISASSEMBLY

   1. Removal of the Cabinet

   2. Puli out the Tray to Manual

   3. Removal of Tray

   4. Alignment of Loading Gear Phase

   5. Operating of MP – 31 Board

   6. Removal of Optical Device

   7. Removal of MD Chassis and OPT Chassis

   8. Removal of Turntable, Spindle Motor, SV – 33 Board and FG – 13 Board

3. DIAGRAMS

   1. Circuit Boards Location

   2. Overall Block Diagram

   3. Video Block Diagram

   4. RF Amp Block Diagram

   5. Analog Audio Block Diagram

   6. System Control Block Diagram

   7. Servo Block Diagram

   8. Digital Audio Block Diagram

   9. Mode Control/Function Switch Block Diagram

   10. Power Block Diagram

4. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

   1. Frame Schematic Diagram

   2. Printed Wiring Boards and Schematic Diagrams

• MP – 31, RG – 23 (MDP – 640D, 740D) Boards

• MP – 31, HP – 75, AF – 52 Boards

• MP – 31, SW – 163, LS – 32, SW – 164, and MT – 52 Boards

• SV – 33, FG – 13, CK – 14, MT – 30 and MT – 28 Boards

• FP – 489, FP – 490, Boards

• FG – 193, TR – 30 Boards

1. Semiconductors

1. EXPLODED VIEWS

   1. EXTERIOR ORNAMENT Assembly

   2. Frame Assembly (1)

   3. Frame Assembly (2)

   4. MD Chassis Assembly (1)

   5. MD Chassis Assembly (2)

2. ELECTRICAL PARTS LIST

• HARDWARE LIST

7. ELECTRICAL ADJUSTMENTS

   1. List of Servicing Jigs

   2. Cautions on Adjustment

   3. MD Adjustment Cable (J – 6082 – 059 – A)

   4. Power Supply Check (PS – 193 Board)

   5. System Control System Adjustment

      1. Microprocessor Clock (PAL) Adjustment (MP – 31 Board)

      2. Microprocessor Clock (NTSC) Adjustment (MP – 31 Board)

   6. Servo System Adjustment

      1. LD Servo System Adjustment

         1. LD Tracking Balance Adjustment (SV – 33 Board)

         2. LD Focus Gain Adjustment (SV – 33 Board)

         3. LD Cross Talk Balance Adjustment

         4. LD Tracking Gain Adjustment (SV – 33 Board)

      2. CD Servo System Adjustment

         1. RD Adjustment

         2. CD Focus Balance Adjustment (SV – 33 Board)

         3. CD RF H Level Adjustment (SV – 33 Board)

         4. CD RF L Level Adjustment (SV – 33 Board)

   7. Video System Adjustment

      1. Video Output Level Adjustment (MP – 31 Board)

      2. Burst Gate position Adjustment (MP – 31 Board)

      3. REF H Adjustment (MP-31 Board)

      4. Color Framing Y Level Adjustment (MP – 31 Board)

      5. Color Framing Chroma Level (1) Adjustment (MP – 31 Board)

      6. Color Framing Chroma Level (2) Adjustment (MP – 31 Board)

      7. Color Framing REF H Adjustment (MP – 31 Board)

      8. Input Level (PAL) Adjustment (RG – 23 Board)

      9. Input Level (NTSC) Adjustment (RG – 23 Board)

      10. BF Position Adjustment (RG – 23 Board)

      11. Video Level (NTSC) Adjustment (RG – 23 Board)

      12. G Level Adjustment (RG – 23 Board)

      13. B Level Adjustment (RG – 23 Board)

      14. Video Level (PAL) Adjustment (RG – 23 Board)