Acer B223W Service Manual page 42
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Also See for B223W:
- Service manual (55 pages) ,
- User manual (30 pages) ,
- Brochure & specs (5 pages)
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Acer
6. No Sound
No sound
Pin1,pin2 of
P701
OK
Pin13 of U701
OK
Check pin7,pin8 of
CN101
OK
Check Pin3,Pin10 of
U701
OK
Check C705,C707
OK
Check speaker
NG
No sound signal
NG
Check 16V Power
NG
R141,R142,R157,R
158 of IF board
NG
Q701,Q702,Q703,Q
704,R701,R702,
NG
24
Acer –LCD-B223W
input
supply
Check
Check
U701 Fail
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