Version: 1.0 Page 7/15
1.2.2 Does not work or one channel no sound
1.2.3 Noise
s
G
uide
ervice
SW-HF2.1 3000
Problem
Analyze and
Identify the
Causes
Solutions
Does not work or
One channel no sound
Broken or
Short circuit
Defective IC
(TDA2030A)
Defective
Audio cable
Replace
Audio cable
Check solder
Points on PCB
And resolder
defective one(s)
Check and replace
Defective IC
(TDA2030A)
Problem
Analyze and
Identify the
Causes
Solutions
Noise
Defective VR
Defective IC
(TDA2030A)
Check and replace
defective component(s)
Replace
Defective VR
Replace defective IC
(TDA2030A)
Component(s) around
IC is/are defective
