LG KG320 - Calculator and Unit Converter

4. TROUBLE SHOOTING
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4.3 Power On Trouble
VEXT
VCXO
VUSB
VMEM
VRTC
VSIM
VCORE
VMIC
VABB
(1608)
1uC123
2V8_VEXT
1uC118
1uC116
1uC113
2V75_VVCXO
1V8_VRTC
VBAT
1uC122
1uC119
1uC114
10KR100
2V85_VSIM
C115 0.1u
A4
B4
VEXT2
T3
VMEM1
VMEM2
T2
VMIC
N16
T7
VRTC
VSIM
T6
E15
VUSB
VVCXO
D16
VAPPGATE
T4
VBACK
VCORE1
P1
N1
VCORE2
VEXT1
H16
VABB
VAPP
F16
E16
VUSB
2V5_VMIC
2V8_VMEM
2.2uC117
1V8_VCORE
2V75_VABB
BACK_BATT
TEST POINT
CIRCUIT
Figure 4-3