LG GD580 - Page 88

- 89 -
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. Trouble Shooting
< Main Board – Bottom side >
2
TP 3
TP 4
TP4
TP3
U503
015C
U1
U
1
6
1
5
C
8
V1_
MA
C
_D
DVT
A
BV
305U
10
0
91
3
0
Y
S
U
E
WQPG
M
-
11
0
9TR
9
5
4
6
3
72
8
1
N
I
V1TU
OV
1NE2TUOV
2NE2CN
1CNDNG
PGND
8
V
2
_
M
AC
_
DD
V
915C
U
1
N
E
_ODL
_
MA
C
_
P
G_PPA
TP3
TP4