Panasonic SB-WA15E, Service Manual, Page: 2 / 32

1.1. GENERAL GUIDELINES 3
2 Caution for AC Mains Lead 4
3 Handling the Lead-free Solder 5
3.1. About lead free solder (PbF) 5
4 Before Repair and Adjustment 5
5 Protection Circuitry 5
6 Connection of the Speaker Cables 6
7 Disassembly Procedure 7
7.1. Disassembly flow chart 7
7.2. Disassembly of the Speaker Unit and Checking of the
P.C.B. 9
8 Voltage Measurement and Waveform Chart 14
8.1. Voltage Measurement 14
8.2. Waveform Chart 15
9 Block Diagram 16
10 Notes of Schematic Diagram 17
11 Schematic Diagram 18
11.1. Power Circuit 18
11.2. AC Inlet Circuit and Transformer Circuit 20
12 Printed Circuit Board 21
12.1. Power P.C.B. 21
12.2. AC Inlet P.C.B. and Transformer P.C.B. 23
13 Wiring Connection Diagram 24
14 Illustration of IC
痴
, Transistors and Diodes 25
15 Parts Location and Replacement Parts List 26
15.1. Cabinet 27
15.2. Electrical Parts List 30
15.3. Packing Materials & Accessories Parts List 32
15.4. Packaging 32
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SB-WA15E / SB-WA15EB