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1. GENERAL Getting Started ... 1-1 Basic Operations ... 1-8 Search Operations ... 1-12 Additional Operations ... 1-14 Additional Information ... 1-16 2. DISASSEMBLY 2-1. 2-2. 2-3. 2-4. 2-5. 2-6. 2-7. Case Front Panel Block Assembly ... 2-1 DM-98 and FJ-33 Board ... 2-1 Rear Panel ... 2-2 MA-402 Board ... 2-2 Mechanism Deck ... 2-3 Internal Views ... 2-4 Circuit Boards Location ... 2-5E 3. BLOCK DIAGRAMS 3-1. 3-2. 3-3. 3-4. 3-5. 3-6. 3-7. Overall Block Diagram ... 3-1 Video Block Diagram ... 3-3 Servo/System Control Block Diagram ... 3-5 Audio Block Diagram ... 3-7 Tuner Block Diagram ... 3-9 Mode Control Block Diagram ... 3-11 Power Block Diagram ... 3-13 4. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS 4-1. 4-2. Frame Schematic Diagram ... 4-3 Printed Wiring Boards and Schematic Diagrams ... 4-5 • MA-402 Printed Wiring Board ... 4-5 • MA-402 (Video, Audio) Schematic Diagram ... 4-9 • MA-402 (System Control) Schematic Diagram ... 4-13 • MA-402 (Servo Control) Schematic Diagram ... 4-17 • MA-402 (Hi-Fi Audio) Schematic Diagram ... 4-19 • MA-402 (Tuner) Schematic Diagram ... 4-21 • MA-402 (I/O) Schematic Diagram ... 4-23 • MA-402 (Mode Control) Schematic Diagram ... 4-25 • MA-402 (Power Supply) Schematic Diagram ... 4-27 • GK-12 Printed Wiring Board and Schematic Diagram ... 4-29 • NK-11 Printed Wiring Board and Schematic Diagram ... 4-31 • FJ-33 Printed Wiring Board and Schematic Diagram ... 4-33 • DM-98 Printed Wiring Board and Schematic Diagram ... 4-34E CONTENTS Section Title Page 5. INTERFACE, IC PIN FUNCTION DESCRIPTION 5-1. 5-2. 5-3. 5-4. 5-5. 5-6. System Control-Video Block Interface (MA-402 BOARD IC101) ... 5-1 System Control-Servo Peripheral Circuit Interface (MA-402 BOARD IC101) ... 5-1 System Control-Mechanism Block Interface (MA-402 BOARD IC101) ... 5-2 System Control-Audio Block Interface (MA-402 BOARD IC101) ... 5-3 Servo/System Control, OSD Microprocessor Pin Function (MA-402 BOARD IC101) ... 5-4 NICAM Processor Pin Function (NK-11 BOARD IC1) ... 5-5E 6. ERROR CODES ... 6-1E 7. ADJUSTMENTS 7-1. Mechanical Adjustments ... 7-1 7-2. Electrical Adjustments ... 7-1 2-1. Pre-Adjustment Preparations ... 7-1 2-1-1. Instruments to be Used ... 7-1 2-1-2. Connection ... 7-1 2-1-3. Set-up of Adjustment ... 7-1 2-1-4. Alingment Tapes ... 7-1 2-1-5. Specified I/O Level and Impedance ... 7-1 2-1-6. Adjusting Sequence ... 7-2 2-2. Power Supply Adjustment ... 7-2 2-2-1. Power Supply Check ... 7-2 2-3. Servo System Adjustment ... 7-2 2-3-1. RF Switching Position Adjustment ... 7-2 2-4. Audio system Adjustments ... 7-3 2-4-1. Hi-Fi Audio system Adjustment ... 7-3 1. AF Switching Position Adjustment ... 7-3 2. Frequency Response Check ... 7-3 3. Overall Level Characteristic and Distortion Factor Check ... 7-4 4. Overall S/N Check ... 7-4 2-4-2. Normal Audio system Adjustment ... 7-4 1. ACE Head Adjustment ... 7-4 2. E-E Output Level Check ... 7-4 3. Frequency Responce Check ... 7-4 4. Overall Level Characteristic and Distortion Factor Check ... 7-5 5. Overall S/N Check ... 7-5 2-5. Tuner System Adjustment ... 7-5 2-5-1. Separation Adjustment ... 7-5 2-6. Parts Arrangement Diagram for Adjustments ... 7-6E 8. REPAIR PARTS LIST 8-1. Exploded Views ... 8-1 8-1-1. Front Panel and Upper Case Section ... 8-1 8-1-2. Chassis Section ... 8-3 8-1-3. Mechanism Deck Section-1 ... 8-5 8-1-4. Mechanism Deck Section-2 ... 8-6 8-1-5. Mechanism Deck Section-3 ... 8-7 8-2. Electrical Parts List ... 8-8