Sony DTC-790 High Quality Service Manual

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1. Section 1. General

2. Section 2. Disassembly

   1. Case

   2. Cassette Window

   3. Mechanism Deck

   4. Holder

   5. Cassette Compartment Motor (M901), Pulley, Driving Gear and Slider

   6. Drum Driving Board and Driving Chassis

   7. Drum

   8. Capstan Motor (M902)

3. Section 3. Adjustments

• Notes when Making Adjustments

1. Electrical Adjustments

1. Section 4. Diagrams

   1. Circuit Boards Location

   2. Block Diagram

   3. Schematic Diagram – Main Section

   4. Printed Wiring Board – Main Section

   5. Printed Wiring Board – Display, MD Section

   6. Schematic Diagram – Display, MD Section

   7. IC Block Diagrams

   8. IC Pin Functions

• IC 304 CXD2605Q (DSP)

• IC 310 CXP87532 – 015Q (Main, Mech Control)

• IC 801 CXP82316 – 054Q (Display Control)

• IC 802 MSM6338RS (Meter IC)

5. Section 5. Exploded Views

   1. Case Section

   2. Front Panel Section

   3. Chassis Section

   4. Mechanism Deck Section – 1

   5. Mechanism Deck Section – 2

   6. Mechanism Deck Section – 3 (DATM – 110)

   7. Mechanism Deck Section – 4 (DATM – 110)

6. Section 6. Electrical Parts List