Panasonic sb wa 17 e service manual

Page 2

SB-WA17E I SB-WA17EB

2 Caution for AC Mains Lead ..................................................... 4
3 Handling the Lead-free Solder ................................................ 5

3.1. About lead free solder (PbF)-
4 Before Repair and Adjustment

5 Protection Circuitry --------------
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 ------------------------- 15
8.1. Voltage Measuremen -15
8.2. Waveform Chart- 6
9 Block Diagram ------ -17

10 Notes of Schematic Diagram ------------------------------------------------ 18

11 Schematic Diagram --------------------------------------------------------------- 19
-------------------------- 19
11.2. Transformer Circuit and AC inlet Circui
11.3. Amplifier Circuit-
12 Printed Circuit Board --

11.1. Power Circuit --

12.1. Power P.C.B. --------------------------------------------------------------- 23
12.2. AC Inlet PCB. and Transformer P,C_B_ ------------------------ 25
12.3. Amplifier P.C.B_ .........................

13 Wiring Connection Diagram .................................................. 2-,

14 Illustration of ICs, Transistors and Diodes ........................... 23

15 Parts Location and Replacement Parts List ......................... 29
15.1. Cabinet ----------------

15.2. Electrical Parts List--
15.3. Packing Materials & Accessories Parts List
15.4. Packaging -------------------------------------------------------------------- 36