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LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. BB Circuit Technical brief
GW520 service manual
3.12 Battery voltage monitor
S-Gold3H is monitor battery capacity with ADC port.
[Figure3.12-1] Battery voltage monitor circuit diagram
VDDA_BB
VDDA_M
(1%)
(1%)
390K
R100
TP103
DNI
R102
VBAT
R103
100K
E18
VDDP_MEM_ETM0
VDDP_MEM_ETM1
J17
VDDP_MEM_ETM2
D17
VDDP_MEM_ETM3
D15
VDDP_MEM_ETM4
N16
D10
VDDP_MEM_ETM5
PAOUT1_1
P4
PAOUT1_2
M8
NC0
AE19
NC1
AE1
NC2
A19
NC3
A1
F3
M0
M1
G4
F5
M10
E2
M2
M3
D1
M4
F4
E3
M5
M6
D3
E4
M7
D2
M8
M9
D4
L5
BB_I
M5
RF_TEMP
2G_IP
PA_LEVEL
LCD_ID
BAT_ID