Acer G205H Service Manual page 56

Acer
DC output voltage is unstable
2.
U n s ta b le p o w e r
C h e c k
s a m p lin g
C irc u it
Y E S
C h e c k th e R p in
v o lta g e o f IC 8 0 3
a b o u t 2 .5 V
Y E S
C h e c k p in 1 o f
IC 8 0 2 v o lta g e
5 .8 V
Y E S
C h e c k p in 3 o f
IC 8 0 2 v o lta g e
a b o u t 1 V
Y E S
E N D
N O
N O
N O
is
N O
C h e c k R 8 1 0 ,
R 8 1 1 ,R 8 1 8
C h e c k th e C p in
v o lta g e o f IC 8 0 3
if 3 V
Y E S
C h e c k
R 8 0 9 , R 8 0 8 ,
R 8 1 4 , D 8 0 9
C h e c k D 8 0 6 ,
C 8 1 5 if s h o rt
C h a n g e
D 8 0 6 ,
C 8 1 5
C h a n g e R 8 0 1 ,
R 8 0 5 , R 8 2 2 ,
R 8 2 3 , R 8 1 7
Acer –LCD-G205H
N O
C h a n g e R 8 1 0 ,
R 8 1 1 , R 8 1 8
N O
C h a n g e IC 8 0 3