LG F7100 Service Manual page 57

4. TROUBLE SHOOTING
GATE_EN
CHRDET
CHG_EN
D201
2V8_VMEM
R202
100K
POWERKEY
KEY_ROW0
RPWRON
VCHARGE
CLK_ON
SIM_EN
10u
C203
C202 1000p
C252 0.1u
(2012)
R203
0.33
VBAT
Q201
S G
5 4
D4 D3
D201
6 3
D5 D2
CUS02
7 2
D6 D1
8 1
TPCF8102
EOC
R209
100K
Circuit Diagram 4-12
Q201 R203
Figure 4-18
VBAT
VCHARGE
VBAT
30
_PWRONKEY
31 18
ROWX
VSIM
29
PWRONIN
21
VCORE
28
TCXOEN
1 23
SIMEN VAN
15
RESCAP
25
8
SIMVSEL VTCXO
9 20
GATEDR VMEM
10
3
GATEIN VRTC
26
12
ISENSE REFOUT
6
16
CHRDET _RESET
14
CHGEN
5
4
MVBAT
BATSNS
7
CHRIN
13
EOC
17
NC1
24
NC2
33 32
GND NC3
U202
ADP3522XCP-3
- 58 -
C201 C253
0.1u 10u
(1608)
VSIM
1V8_VCORE
2V55_VAN
2V75_VTCXO
2V8_VMEM
C205
0.1u
C208 C209 C210
C211 C212
C213
0.22u 2.2u 2.2u 0.22u 2.2u
0.1u
(1608) (1608) (1608)
(1608) (1608)
2V0_VRTC
C214
0.1u
R205
10K
BAT1