Power On Trouble - LG -A155 Service Manual

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4. TROUBLE SHOOTING

4.4 Power On Trouble

(VSIM2)
R101=0ohm
Figure 4.4.2
LGE Internal Use Only
TP11
TP10
(VSIM1)
(VUSB)
TP6(VIO)
TP5(VM)
TP1(VCORE_PMU)
Figure 4.4.1
67/140
4. TROUBLE SHOOTING
TP9
TP8
(VCAMD)
(VCAMDA)
TP3(VRF)
TP2(VTCXO)
TP4(VA)
U102
R
1
0
1
E
N
D
_
K
E
Y
S
Y
S
_
R
E
S
E
T
K
E
Y
P
A
D
_
L
E
D
Figure 4.4.3 Remote power on
- 64 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
TP7
P
4
0
P
W
R
K
E
Y
P
2
R
E
S
E
T
B
C
9
B
A
T
_
O
N
J
1
V
B
L
_
O
U
K
2
V
B
T
L
3
L
E
D
L
5
S I
N I
K
1
G
1
Only for training and service purposes
T

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