Read LG 52LG72-UA (CHASSIS:LA86B) Service Manual online
- 32 -
C
2008
HDMI
Audio(In)
Check input connect JK600,
JK601,JK708
Can y
ou see t
h
e n
o
rmal
w
a
v
e
form?
Check DDC communication lines
(IC601, IC602,
IC701)
JK60
0,JK6
01,
JK70
8 ma
y
h
a
v
e
p
roblem. R
e
place th
is Jack.
Check the output of
PI3HDMI341
A
T
R(IC600).
Can y
o
u see t
h
e n
o
rmal
w
a
v
e
form?
A
ft
e
r checking the Po
w
e
r
of this chip, y
o
u should
decide to replace this or not.
Check HD
CP co
mmunicatio
n lin
es(IC102)
A
ft
e
r checking the Po
w
e
r
of this chip, y
ou should
decide to replace this or not.
YES
YES
YES
NO
NO
NO
NO
A
ft
e
r checking the Po
w
e
r &
Select Pin &
Etc of this chip, y
o
u should
decide to replace this or
not.
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