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Service Guide SW-5.1 1020
1.2.7 Noise and Current Noise
Version No. 1.0 Page
13 of 24
Noise and current noise
1.
Switching power supply
panel damaged.
2.
Incomplete power filter:
such capacitor
inoperative or damaged
as C72, C73, C74, C80,
C81, C82, C83, C20,
C24, C27, C17, C25, and
C21
Such elements damaged as D6,
R59, D5, D7, U1, U2, U3, U4, U5
and U6
Inspect/ repair/ replace
Inspect/ repair/ replace
1.
Bass potentiometer defective
or damaged
2.
Power failure of U6
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 ...