Toshiba D-KR4SU, Service Manual

SECTION 2

PART REPLACEMENT AND ADJUSTMENT PROCEDURES

SECTION 3

SERVICING DIAGRAMS

1. CIRCUIT SYMBOLS AND

SUPPLEMENTARY EXPLANATION
1-1. Precautions for Part Replacement
1-2. Solid Resistor Indication
1-3. Capacitance Indication
1-4. Inductor Indication
1-5. Waveform and Voltage Measurement
1-6. Others

2. PRINTED WIRING BOARD AND

SCHEMATIC DIAGRAM

3. BLOCK DIAGRAMS

3-1. Overall Block Diagram

4. CIRCUIT DIAGRAMS

4-1. Power Supply Circuit Diagram
4-2. Front Circuit Diagram
4-2-1. Front Jack Circuit Diagram
4-2-2. Front (LED) Circuit Diagram
4-2-2. Front (L) Circuit Diagram
4-2-3. Front (R) Circuit Diagram

4-3. Digital Circuit Diagram
4-3-1. Digital 1 Circuit Diagram
4-4. Mother Circuit Diagram
4-4-1. Tuner Circuit Diagram
4-4-2. Timer Circuit Diagram
4-4-3. Audio Circuit Diagram
4-4-4. Video Circuit Diagram
4-3. Tuner Unit Circuit Diagram

5. PC BOARDS

5-1. Front Jack PC Board
5-2. Front (LED) PC Board
5-3. Front (L) PC Board
5-4. Front (R) PC Board
5-5. Tuner Unit PC Board
5-6. Digital PC Board
5-7. Mother PC Board

CONTENTS

SECTION 1

GENERAL DESCRIPTIONS

1. OPERATING INSTRUCTIONS

1. REPLACEMENT OF MECHANICAL PARTS

1-1. Cabinet Replacement
1-1-1. Top Cover
1-1-2. Front Panel
1-1-3. RAM Diver
1-1-4. Rear Panel
1-1-5. Fan

1-2. PC Board Replacement
1-2-1. Tuner Unit PC Board
1-2-2. Digital PC Board
1-2-3. Mother PC Board
1-2-4. Power PC Board
1-2-5. Front (R), Front (L), Front (LED), and

Front Jack PC Board

2. WIRING CONNECTION DIAGRAM

2. LOCATION OF MAIN PARTS

2-1. Location of Main Parts
2-2. Location of PC Boards

SECTION 4

PARTS LIST

SAFETY PRECAUTION
NOTICE
ABBREVIATIONS

1. EXPLODED VIEWS

1-1. Packing Assembly
1-2. Chassis Assembly

2. PARTS LIST