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Service Guide SW-5.1 1020
1.2.2 No Sound
Version No. 1.0 Page
8 of 24
No Sound
1.
Circuit board U6
damaged or defective
2.
Abnormal power voltage
of power panel
Causes given below
Power fault of U6 resulting from
SW-5.1 1020 PCB D6, R59, C81.
Inspect/ repair/ replace
Inspect/ repair/ replace
1.
JK5 defective or damaged
2.
VR2 Potentiometer defective
or damaged
Replace/ repair
Summary of Contents for SW-5.1 1020
Page 1: ...Service Guide SW 5 1 1020 Service Guide KEY SYSTEM CORP Version No 1 0 Page 1 of 24 ...
Page 17: ...Service Guide SW 5 1 1020 Version No 1 0 Page 17 of 24 Chapter 2 Product Specifications ...
Page 20: ...Service Guide SW 5 1 1020 Satellite Version No 1 0 Page 20 of 24 ...
Page 23: ...Service Guide SW 5 1 1020 Version No 1 0 Page 23 of 24 Chapter 6 Electric Schematic Diagram ...
Page 24: ...Service Guide SW 5 1 1020 Version No 1 0 Page 24 of 24 ...