LG KP260 - Power on Trouble

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4. TROUBLE SHOOTING
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4.5 Power On Trouble
2V8_VEXT
2V8_VMEM
1V8_VCORE
2V5_VMIC2V75_VVCXO
2V85_VSIM
VUSB
1V8_VRTC
TP1
TP2
TP4
TP3
TP5
TP7
TP9
1V8_VGP
TP6
TP8
TP10
TEST POINT
RB521S-30D101
C126 2.2u
C129
1u
C135
1u
0.1u
C136
C130
1u
2V8_VMEM
R113 3300
27p
C132
2V8_VEXT
1V8_VRTC
R111
0
C133
1u
2V75_VVCXO
100KR109
1V8_VCORE
C131
1u
C127
VUSB
1u
1V8_VGP
T19
VUSB_A
VMEMFB
W13
VMEMOUT
V12
U12
VMEMSEL
VMIC
U19
VRF
M19
W15
VRTC
T11
VRTCSEL
V14
VSIM_A
VEXT_REG1
V11
VEXT_REG2
W11
VGP
W14
V8
VCORE
W8
VCOREOUT
N18
VABB_LDO
VAPP
P18
L14
VAPPCFG
VAPPGATE
N19
E19
PMTSEL
T13
PWREN
V17
PWRON
V5
RESET
J8
J9
RESET1P8
K9
RESET2P8
MCLK
V7
INT
K10
DBBON
V6
U7
CLKOUT
J10
ABB_IGQ_GPIO_48
C128
1u
1u
2V85_VSIM
C134
2V5_VMIC
RPWRON
_RESET
CIRCUIT
TP10
TP5
TP6
TP7
TP8
TP4
TP9
TP3
TP1
TP2