LG KS660 - LCD Display Trouble

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
4.4. LCD display trouble
Check Points
-LCD assembly status ( LCD FPCB, Connector on FPCB)
-EMI filter soldering
-Connector combination
7
3
B
_T
UO
NI
4B
_T
UO
NI
6
RF
1
0
1
R
0
50E
48
1
0
1
EVCI
2
0
2
LF
G1
5
G2
10
1
A
_T
UO
N
I
1
2
2A
_T
UON
I
3
A
_T
U
O
N
I
3
4
4A
_T
UON
I
9
1B
_T
UON
I
2B
_T
UON
I
8
C260
O
IV_26V2
1u
2A
_T
UON
I
2
3
3
A
_T
U
O
N
I
4A
_T
UON
I
4
1B
_T
UON
I
9
8
2B
_T
UON
I
3
B
_T
U
ON
I
7
4B
_T
UON
I
6
2B_TUO
N
I
8
7
3B
_T
UO
NI
4B_TUON
I
6
R
F
1
0
1R05
0
E
4
8
1
0
1
E
V
C
I3
0
2
LF
5
G1
10
G2
1
1
A
_T
UO
N
I
R
F
1
0
1R
0
5
0
E
4
8
1
01E
V
C
I
4
0
2
L
F
G1
5
G2
10
1
A
_T
UO
N
I
1
2
2
A
_TUO
N
I
3
A
_TUO
NI
3
4
4
A
_T
U
O
NI
9
1
B
_T
UO
NI
p
0
0
0
1
2
6
2
C
G1
5
G2
10
1
1A
_T
UON
I
2
2
A
_T
UO
N
I
3A
_T
UON
I
3
4
4
A
_T
U
O
N
I
9
1B
_T
UON
I
2B
_T
UON
I
8
7
3B
_T
UON
I
4
B
_T
U
ON
I
6
R
F
1
0
1
R
0
5
0
E
48
1
0
1
EVCI
1
0
2
LF
7
6
4B
_T
UO
NI
5
0
2L
F
5
G1
10
G2
1
1A
_T
UONI
2
A
_T
U
O
N
I
2
3
3A
_T
UON
I
4A
_T
UON
I
4
1B
_T
UONI
9
8
2B
_
T
U
ON
I
3B
_T
UON
I
RF
1
0
1
R
0
50E
4
8
1
0
1
E
VCI
ICVN0505X150FR
VA206
O
I
V
_
2
6
V
2
7
2
8
2
9
2
0
3
1
3
2
3
33
4
3
5
3
6
3
7
3
8
3
9
3
2
2
0
4
3
2
4
2
5
2
6
2
4
1
5
1
6
1
7
1
8
1
9
1
2
02
3
4
5
6
7
8
9
1
2
1
0
2
N
C
1
0
1
1
1
2
1
3
1
MF
V
_
5
8
V
2
R236 100K
10K
R237
K
1
8
3
2
R
123
2
R
10K
R230
C259 1u
T
E
S
E
R
_
F
I
D
C
N
Y
S
V
_
F
I
D
)31
(
D
_
FI
D
)21
(
D
_F
I
D
)11
(
D
_
FI
D
)01
(
D
_F
ID
)9
(
D
_
F
I
D
)8
(
D_
F
I
D
R
W
_F
I
D
D
R_FID
S
C
_F
I
D
D
C
_FID
)
7
(D
_
F
I
D
)
6
(D
_
F
I
D
)
5
(D
_
F
I
D
)
4
(D
_
F
I
D
)
3
(D
_
F
I
D
)
2
(D
_
F
I
D
)
1
(D
_
F
I
D
)
0
(
D
_
F
I
D
D
I
_
DC
L
D
E
L
M
1
D
E
L
M
2
D
E
L
M
3
D
E
L
M
4
D
E
L
M
5
D
E
L
M
)
5
1
(
D
_FI
D
)
41
(
D
_FI
D