Acer X193HQL Product Service Manual page 58

3. Check Scalar
g ro u n d p in s a t th e c o rre c t
A re th e c o rre c t R G B a n d
H sy n c sig n a l fe d to
Is th e c o rre c t S in u so id a l
w a v e a p p e a re d o n C ry sta l
M e a su re th e sig n a l p a irs
o n L V D S d a ta o u tp u t a n d
c lo c k fro m S c a la r
C h e c k th e re m a in in g
S c a la r fa ile d
to o u tp u t d a ta
A re a ll th e p o w e r a n d
N O
v o lta g e le v e l?
Y E S
N O
S c a la r ?
Y E S
N O
Y E S
A re th e p ix e l o u tp u t
N O
c o rre c t?
Y E S
c irc u its
- 57 -
P o w e r o r th e g ro u n d p in s
h a s b a d c o n ta c ts
A re th e sig n a ls p re se n te d
N O
o n D S u b c o n n e c to r?
Y E S
C a p a c ito rs o f C ry sta l
h a v e d a m a g e d
S c a la r fa ile d
D S U B C o n n e c to r o r
P C fa ilu re
B a d w irin g b e tw e e n
D S U B a n d S c a la r