Acer G205H Service Manual page 57

Acer
3. Backlight can't be turned on
N o r a s te r
L E D G r e e n ?
B a c k lig h t c a n
n o t b e tu r n e d o n
Y E S
I
s th e r e 1 4 V d c
v o lta g e o n p in 1 3 o f
IC 5 0 1 ?
Y E S
Is th e re h ig h - le v e l
v o lta g e o n p in 8 o f
IC 5 0 1
Y E S
C h e c k C N 5 0 1 , C N 5 0 2 ,
C N 5 0 3 a n d C N 5 0 4 ?
Y E S
Is th e r e p u ls e w a v e fo rm o n p in 1 ,
p in 3 , p in 1 5 a n d p in 1 6 o f IC 5 0 1 a t th e
m o m e n t o f r e s ta r t?
Y E S
Is o k T 5 0 1 , T 5 0 2 ?
Y E S
C h e c k p r o te c te d
c ir c u it Q 5 0 1 , Q 5 0 2 ,
Q 5 0 3 , Q 5 0 4
Y E S
Y E S
N O
N O
N O
N O
N O
E N D
C h e c k p o w e r
s u p p ly
Is R 5 2 6 O k ?
N O
Is O k IC 5 0 1 ?
N O
T 5 0 1 , T 5 0 2 fa il
Acer –LCD-G205H
Y E S
C h e c k I/F b o a rd
R 5 2 6 o p e n
C o n n e c tin g th e
o u tp u t c o n n e c to r
a g a in
Y E S
U 5 0 1 , U 5 0 2 fa il
IC 5 0 1 fa il