Acer B223W - Bdmr - 22" LCD Monitor, Service Manual

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Acer
Acer –LCD-B223W
21
3.Black screen
U 1 0 4 F A I L
B l a c k s c r e e n
C h e c k p i n 5 , 6 o f
C N 1 0 1
C h e c k C C F L -
E n a b l e ,B r i g h t n e s s ( p i n
1 0 9 , 1 2 5 )
o f U 1 0 4
C h e c k c r y s t a l ( p i n
1 2 7 ,1 2 8 ) w a v e f o r m o f
U 1 0 5
C h e c k r e s e t ( p i n 1 0 8 )
o f U 1 0 4
C h e c k p o w e r s u p p l y
f o r U 1 0 4
C h e c k p o w e r
s u p p l y : p i n 1 ,2 o f
C N 1 0 1
C h e c k R 1 1 1 , Q 1 0 6 ,
R 1 1 2 ,R 1 4 7 , R 1 4 8
I n v e r t e r F a i l
C h e c k
X 1 0 1 ,C 1 5 0 ,C 1 5 2
C h e c k C 1 5 1 , R 1 6 5
C h e c k
F B 1 0 2 , F B 1 0 3 ,
P o w e r f a i l
N G
N G
N G
N G
N G
N G
O K
O K
O K
O K
O K O K