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Service Guide SW-U2.1 200
Version No. 1.0 Page
11 of 18
1.2.5 Noise and Current Noise
Noise and Current Noise
1.
Power failure, filter capacitor
C33 and C27 damaged resulting
in large interference from voltage
ripple provided for IC by power
supply; PCB becoming damp,
dirty or broken.
2.
Signal input line connected
improperly/ no signal
1.
Long use of potentiometer
resulting in poor connection
of knob shrapnel
2.
U1 and U2 defective,
damaged and short circuit
resulting in oversized load
current of power supply to
reduce voltage.
Inspect/ repair/ replace
Inspect/ repair/ replace
Poor connection of the
earthing line of signal line,
CON3/ signal line
defective and damaged
Replace/ repair
Summary of Contents for Genius SW-U2.1 200
Page 1: ...Service Guide SW U2 1 200 Version No 1 0 Page 1 of 18 Service Guide KEY SYSTEM CORP...
Page 13: ...Version No 1 0 Service Guide SW U2 1 200 Chapter 2 Product Specifications Page 13 of 18...
Page 15: ...Service Guide SW U2 1 200 Version No 1 0 Page 15 of 18 Subwoofer Satellite...
Page 16: ...Service Guide SW U2 1 200 Version No 1 0 Page 16 of 18 Chapter 5 Material List...
Page 18: ...Version No 1 0 Page 18 of 18 Service Guide SW U2 1 200 Chapter 6 Electric Schematic Diagram...