Sony CDP-990 High Quality Service Manual

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• SPECIFICATIONS

• MODEL IDENTIFICATION

• SAFETY CHECK – OUT

• SERVICING NOTES

1. GENERAL

   1. Location and Function of Controls

   2. Operating Instructions (Extracted from Instruction Manual)

2. DISASSEMBLY

   1. Removal of LOADING PANEL

   2. Removal of CD MECHANISM BLOCK (CDM11C – 5H)

   3. Removal of BASE UNIT (BU – 5H)

   4. Removal of MOTOR ASSY

   5. Removal of OPTICAL PICK – UP BLOCK (KSS – 240A)

   6. Removal of DISK TABLE and BELT

3. ELECTRICAL ADJUSTMENTS

4. DIAGRAMS

   1. CIRCUIT BOARDS LOCATION

   2. SEMICONDUCTOR LEAD LAYOUTS

   3. Description on IC 101 (CXA1372Q)

   4. Description on IC 801 (MSC62408 – 003GS – K)

   5. Description on IC 301 (M37450M8 – 130FP)

   6. BLOCK DIAGRAM

   7. PRINTED WIRING BOARDS (MAIN BOARD Suffixed 13)

   8. SCHEMATIC DIAGRAM (US Model)

• WAVEFORM

1. SCHEMATIC DIAGRAM (Except US Model)

2. PRINTED WIRING BOARDS (MAIN BOARD Suffixed 11)

• IC BLOCK DIAGRAM

5. EXPLODED VIEWS

   1. OVERALL SECTION

   2. MD SECTION (CDM11C – 5H)

   3. OPTICAL PICK – UP BLOCK (BU – 5H)

6. ELECTRICAL PARTS LIST