Read LG 42LG60 (CHASSIS:LA84B) Service Manual online
- 26 -
C
2008
Check JK
701,
JK70
7, JK70
0, JK702, JK
703
.
Can y
ou see t
h
e n
o
rmal
w
a
v
e
form?
NO
JK701, JK707, JK700, JK702, JK703 may
h
a
v
e
problem. Replace this
Jack.
Check the input (Pin
A
IN
6
A
,
A
IN6
B
,A
IN1
A
,A
IN1
B,
A
IN3
A
,A
IN3
B,
A
IN
4
A
,A
IN4
B
,A
IN2
A
,A
IN2
B
) of CS5345(IC
500).
Can y
ou see t
h
e n
o
rmal
w
a
v
e
form?
NO
YES
A
ft
e
r checking audio signal line, y
o
u sh
ould decide
to
replace item or not.
YES
Check the Output (Pin SDOU
T,SCLK,LRCK) of CS5345(I
C500).
Can y
o
u see t
h
e n
o
rmal
w
a
v
e
form?
NO
A
ft
e
r checking the Po
w
e
r &
MLCK & reset of this chip,
y
ou should
decide to replace this or not.
YES
Check the input (Pin
A
H
24,A
J24,
A
K
24) of
BCM3553((IC100).
Measure
w
a
v
e
form at R554,
R561,R
555 b
e
cause it
s mo
re
eas
y
to
ch
e
ck.
Can y
o
u see t
h
e n
o
rmal
w
a
v
e
form?
NO
A
ft
e
r checking audio signal line, y
o
u sh
ould decide
to
replace item or not.
AV/Component/RGB-PC
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