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4. TROUBLE SHOOTING
4.4 Power On Trouble
TEST POINT
2V8_VMEM
2V85_VSIM
2V5_VMIC
2V75_VABB
CIRCUIT
2V8_VMEM
2V8_VEXT
2V75_VABB
C11
VEXT01
R13
VMEM
G17
VABB
U11
VCORE
P16
VMIC
F16
VVCXO
R14
VSIM
A11
DATA0
DATA00
D9
DATA1
DATA01
E8
LGE Internal Use Only
1V8_VCORE
2V75_VVCXO
2V5_VMIC
2V85_VSIM
C111
1u
C112
1u
C113
2.2u
C114
1u
C115
2.2u
C116
1u
C117
1u
U104
Figure 4.4
R314
POWERKEY
680
H12
ASDI_ABB
H11
ASDO_DBB
U15
DBBON
U14
PWRON
N15
TXON
N14
GPO_1
M12
RXON
N12
GPO_0
M11
CSFS_ABB
M10
CSFS_DBB
Copyright © 2008 LG Electronics. Inc. All right reserved.
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1V8_VCORE
2V8_VEXT
2V75_VVCXO
VBAT
R300
10K
END KEY
SW300
D101
R107
100K
RB521S-30
Only for training and service purposes
RPWRON
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