Sansui BA 5000 Service Manual

Page 2

This service manual is designed for service engineers to repair, adjust,

maintain and order the replacement parts of the, BA-SOOO correctly.
When ordering the parts, use the stock number and parts name specific-
ally referring to the Parts Locations & Parts Lists.

For general usage and maintenance of the unit, please refer to the
Operating Instructions attached with the unit.

TABLE OF CONTENTS

Section Title Page
1. SPECIFICATIONS ................................................ 2
2. BLOCK DIAGRAM .............................................. 2
3. ADJUSTMENTS ................................................ 3

3-1. Driver Circuit Board Adjustments .............................. 3

3-2. Power Meter Adjustment .................................... 3

4. PARTS LOCATIONS AND PARTS LISTS ........................ 4
4-1. F-2520 Buffer Amplifier Circuit Board .......................... 4
4-2. F-2518 Driver Circuit Board .................................... 5

4-3. F-2521 Power Supply Circuit Board (Low Voltage) .............. 6
4-4. F-2519 Power Supply Circuit Board ............................ 7
4-5. F-2515 Meter Amplifier Circuit Board .......................... 7
4-6. F-2517 Connector Circuit Board ................................ 8
4-7. F-2516 Connector Circuit Board ................................ 8

4- 8. F- 2506 Input Terminal Circuit Board ............................ 8

4- 9. F- 2514 Meter Lamp Circuit Board .............................. 8

5. FIGURES, CONNECTOR & PIN Ass' y ............................ 9
5-1. Transistor & IC .............................................. 9
5-2. Diode ...................................................... 9

5-3. Connector & Pin Assy .............................. . ......... 9

6. POWER SUPPLY VOLTAGE CHANGEOVER ...................... 9
7. OTHER PARTS (Front Side) .................................... 10
8. TROUBLESHOOTING CHART .................................. 11
8-1. Operation Block Diagram .................................... 11
8-2. Main Troubleshooting on Each Section ........................ 11

9. OTHER PARTS (Top, Bottom Side) ............................ 12
10. SCHEMATIC DIAGRAM ........................................ 13
11. PACKING LIST ................................................ 14

12.

ACCESSORY PARTS LIST ...................................... 14