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1.2.5Noise and cacophony
Version No.:1.0
Page:11 of 19
Service Manual
SW-2.1 360
Noise and cacophony
1. The power supply
is poor, causing
damage to the filter
capacitor and great
voltage ripple
interference to the
IC; The PCB is
affected with damp,
dirty or cracked;
2. The signal input
line is improperly
connected/No signal.
The signal line is
improperly grounded;
CON2B/signal line is
defective
Check/repair/replace
Check/repair/replace
1. The potentiometer
is used for over long
time, causing bad
contact
to the knob type
spring plate;
2. The IC1/IC2 is
defective,
causing excess load
current
and thus decreasing
voltage.
Replace/repair
Summary of Contents for Genius SW-2.1 360
Page 1: ...Service Manual SW 2 1 360 Service Manual KEY SYSTEM CORP Version No 1 0 Page 1 of 19...
Page 13: ...Service Manual SW 2 1 360 Chapter II Specification Version No 1 0 Page 13 of 19...
Page 15: ...Service Manual SW 2 1 360 Version No 1 0 Page 15 of 19 Chapter IV Assembly Rendering Subwoofer...
Page 16: ...Service Manual SW 2 1 360 Satellite Version No 1 0 Page 16 of 19...
Page 19: ...Version No 1 0 Page 19 of 19 Service Manual SW 2 1 360 Chapter VI Electric Schematic Diagram...