Read LG 42LG6000 / 42LG6100 (CHASSIS:LD89F) Service Manual online
- 19 -
C
2008
2) In case of abnorm
al display on the scr
een in specific mode
Symptom
1)
The sc
reen does not display the
pic
ture from spec
ific
input mode
(R
F,D
T
V, AV,
Component, RGB,
H
D
MI)
.
Check the followings
Is
the input voltage
and CVBS
outpu
t
for t
he t
un
er OK
?
Is
the tuner
OK?
In case of abnormal
display on the screen when RF mode.
Is
the RF cable
connected w
ith
TV
se
t?
C
onnect the
R
F
cab
le.
Re
pl
ace the tuner
.
Is
IC100(FL
I1
06X0H
) OK?
Is t
he IIC communication wav
ef
orm
between the tuner
and IC1
00
O
K
?
Re
pl
ace IC100
(FL
I106X0H)
No
Yes
No
No
No
No
Yes
Block A
In the case of abnormal di
splay on the screen when USB mode.
Is USB
5V
P
ower
OK
?
Yes
No
Re
place IC90
2
Is
USD DP/DM
wav
ef
orm O
K
?
No
Sa
me
as
Block
A
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