Service Guide SW-5.1 1020
1.2.6 No Bass
Version No. 1.0 Page
12 of 24
No bass
1.
Short circuit or open
circuit of PCB for bass
channel
2.
JK4 earphone input
socket defective or
damaged
Such elements damaged as D5,
D7, U4 and U5
Inspect/ repair/ replace
Inspect/ repair/ replace
1.
Output socket CON1
defective or damaged
2.
Power failure of U4 and U5
IC, power copper foil broken
3.
VR1 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 ...