1.1 GENERAL GUIDELINES
1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts
which have been overheated or damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation
papers shields are properly installed.
3. After servicing, make the following leakage current checks to prevent the customer from
being exposed to shock hazards.
1.1.1 LEAKAGE CURRENT COLD CHECK
Summary of Contents for SB-WA520EB
Page 18: ...Step 5 Remove the screws from the subwoofer Disassembly of Power Amp unit ...
Page 19: ...Step 6 Remove 2 screws from the Power Amp unit ...
Page 20: ...Step 7 Pull out the Power Amp unit slightly as shown Note Be careful of attach wire at CN506 ...
Page 21: ...Step 8 Release the connector CN506 then pull out the entire Power Amp unit ...
Page 22: ...Steps 9 10 Remove all the screws Step 11 Release the connector CN507 to remove the rear panel ...
Page 23: ... Checking for the Power and AC Inlet P C B Step 12 Remove the screws from the AC Inlet P C B ...
Page 24: ...Steps 13 14 Remove the screws ...
Page 26: ...Step 16 Remove the screws ...
Page 27: ...Step 17 Place the P C B as shown for checking Replacement of the Power IC and Transistor ...
Page 28: ...Step 1 Desolder the Power IC and Transistor terminals Step 2 Remove the screws from the IC501 ...
Page 29: ...Step 3 Remove the screw Step 4 Replacement of the Power IC and Transistor ...
Page 30: ...7 Connection of the Speaker Wiring TOP PREVIOUS NEXT TOP PREVIOUS NEXT ...
Page 31: ...8 Block Diagram TOP PREVIOUS NEXT TOP PREVIOUS NEXT ...
Page 33: ...10 Printed Circuit Board TOP PREVIOUS NEXT TOP PREVIOUS NEXT ...
Page 34: ...11 Wiring Connection Diagram TOP PREVIOUS NEXT TOP PREVIOUS NEXT ...
Page 35: ...12 Illustration of IC s Transistors and Diodes TOP PREVIOUS NEXT TOP PREVIOUS NEXT ...
Page 37: ...13 3 Packing Materials Accessories Parts List 13 4 Packaging TOP PREVIOUS NEXT ...
Page 39: ...13 1 1 Cabinet Parts Location TOP PREVIOUS NEXT TOP PREVIOUS NEXT ...
Page 51: ...13 4 Packaging TOP PREVIOUS TOP PREVIOUS ...
Page 52: ......
Page 53: ......