Backup Battery - LG lg530g Service Manual

SMPS Circuit
L300 4.7u
VREG_MSMC_1.2V
C300
10u
L301 4.7u
VREG_RF1_2.3V
C303
10u
L302 4.7u
VREG_RF2_1.4V
C309
10u
L303
VREG_RFRX2_1.3V
L304 27n
L305 27n
L306 39n
VREG_RFTX2_1.3V
R306
220
VREG_RFA_2.2V
VCOIN
VCHG_DET
C332 C333
4.7u 4.7u
Tx Tx PLL & QSC
OJ301 SC300 SC301
1 1
LGE Internal Use Only
VSW_MSMC
VSW_RF1
VREG_RF1_2.3V|VREG_RF1
VSW_RF2
VREG_RF2_1.4V|VREG_RF2
F23
DCS/PCS_RX_M
RX_IN_G_HBM
G23
DCS/PCS_RX_P RX_IN_G_HBP
H22
GSM900_RX_M RX_IN_G_LBM
J22
GSM900_RX_P RX_IN_G_LBP
H23
W1900_RX_M RX_IN_U_G_HB1M
J23
W1900_RX_P
RX_IN_U_G_HB1P
K23
RX_IN_U_HB2M
L23
RX_IN_U_HB2P
K22
W850/GSM850_RX_M
RX_IN_U_G_LBM
L22
W850/GSM850_RX_P RX_IN_U_G_LBP
A21
W1900_TX_OUT
TX_OUT_U_HB1
A20
TX_OUT_U_HB2
A19
W850_TX_OUT
TX_OUT_U_LB
A22
GSM_HB_TX
TX_OUT_G_HB
B23
GSM_LB_TX
TX_OUT_G_LB
C23
PWR_DET
PWR_DET_IN
A18
GSM_PA_RAMP
PA_DAC
0.1u C325 B18
TX_DAC_REF_BYP
27n
K19
VDD_RFRX1
G21
VDD_RFRX2
K21
VDD_RFRX3
G19
VDD_RFRX4
J19
VDD_RFRX5
K18
VDD_RFRX6
H19
VDD_RFRX7
D22
VDD_RFTX1
D23
VDD_RFTX2
E18
VDD_RFTX3
C19
VDD_RFTX4
D21
VDD_RFTX5
C18
VDD_RFTX6
H18
VDD_RFA1
C20
VDD_RFA2
N18
VDD_RFA3
T18
VDD_RFA4
R23
VDD_RFA5
M18
VREG_CDC2
R19
HPH_VNEG
AA18
VCOIN
AB7
USB_VBUS
AA14
VCHG1
AB14
VCHG2
AA13
VPH_PWR1
AB13
+VPWR VPH_PWR2
0.2mm
Rx Rx PLL & QSC
W12
BAT_FET_N
AB12
VBAT
C352
33u
R301
VREG_RFA_2.2V XO_ADC_IN
100K
C301 C302
0.1u 1n
X300
1%
1 2
C304 C305
32.768KHz
DNI DNI
PMIC control
V15
VREG_USB_2P6
V14
VREG_USB_3P3
V13
VDD_EFUSE
A12
VDD_P5
A6
VDD_P2_1
A9
VDD_P2_2
G3
VDD_P1_1
J3
VDD_P1_2
L3
VDD_P1_3
N3
Digital POWER VDD_P1_4
R3
VDD_P1_5
A15
VDD_P6
A1
VDD_CORE1
B2
VDD_CORE2
C3
VDD_CORE3
K10
VDD_CORE4
K11
VDD_CORE5
K12
VDD_CORE6
K13
U200 VDD_CORE7
L10
VDD_CORE8
L11
VDD_CORE9
L12
VDD_CORE10
L13
VDD_CORE11
U1
VDD_CORE12
U2
VDD_CORE13
T13
VREG_MPLL
V16
VDD_USB
AC14
VDD_RF1
AA17
VDD_RX2_TX2
AA16
VDD_PLL_CDC
AA20
VDD_NCP
AC16
VDD_RF2
AC21
VDD_SPKR VDD_SPKR
U21
- High Audio Power : VREG_5V
VDD_TCXO
- Normal Audio Power : +VPWR
AA12
VDD_PAD_SIM
AA15
VDD_EBI_RFA
AA19
VDD_MSMC
AC15
PMIC POWER
VSW_RF1
AB15
VREG_RF1
AC17
VSW_RF2
AB17
VREG_RF2
AC18
VSW_MSMC
W16
VREG_RFA
AB18
NCP_CTC1
AB19
NCP_CTC2
AC20
VREG_NCP
AC12
VSW_5V
AC11
VREG_5V
W21
VREG_RFRX2
V21
VREG_RFTX2
W13
VREG_MSMP
AA22
VREG_GP1
W15
VREG_MSME
U22
VREG_TCXO
Y22
VREG_GP2
W14
VREG_USIM
GND_MSMC
GND_RF1
GND_RF2
- 134 -
Battery CNT
Charging Line Width: 2mm
D2
3
2
1
D1
CN300
VBATT_GND
VA301

Backup Battery

Deleted eFUSE TP at 1.0
FOR USING SW-LOCK
C312 1u
C313 1u
C314 0.1u
VREG_MSME_1.8V
VREG_MSMP_2.6V
VREG_MSMC_1.2V
C330 0.1u
C331 2.2u
+VPWR
VREG_RF2_1.4V
VREG_RF1_2.3V
VSW_RF1
VREG_RF1_2.3V|VREG_RF1
VSW_RF2
VREG_RF2_1.4V|VREG_RF2
VSW_MSMC
VREG_RFA_2.2V
VREG_RFRX2_1.3V
VREG_RFTX2_1.3V
VREG_MSMP_2.6V
VREG_LCD_2.8V
VREG_MSME_1.8V
VREG_TCXO_2.85V
VREG_MICROSD_3.0V
VREG_USIM_3.0V
Copyright © 2012 LG Electronics. Inc. All right reserved.
7. CIRCUIT DIAGRAM
VREF_THERM_OUT
R302
VBAT_TEMP
1K
VA300
VCOIN
BAT300
C315
2.2u
Only for training and service purposes