LG GX500 Service Manual page 40

GX500 Operational Description
USB_OEN
USB_DAT_VP
USB_SE0_VM
1V8_SD 2V5_VAUDB VBAT
TXON_PA
VBAT
2V5_VAUDA 2V85_VFM
B1
C2
D3
C1
SIM1_USB_DP
D2
SIM1_USB_DM
E3
PMRSTN
D1
220
E2
VCXO_EN
E1
SIM1_BT_VCXO_EN
TP203
F2
F1
G2
G1
H2
H1
C230 C245 C243
2.2u 2.2u 1u
J1
J2
H3
J3
K1
K2
L2
C240
C204 C208 C213 C209 C216
C241 C247 C224
0.1u
10u 2.2u 0.1u
2.2u
10u 10u 22u 2.2u
Figure 3-4. SM-Power Circuit Diagram of GX500
BATTERY CONNECTOR
R214
1K
CN201
1
2
4
3
C202
47p
Figure 3-5 SM-Power Circuit Diagram with charging part
'
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Only for training and service purposes
VUSB VBAT
VBAT
1V35_VPLL 2V62_VIO
C212
C214
C237
VBAT
0.1u
2.2u 1u
RCV
VPIN
VMIN
D+
D-
RESET_N
RESET2_N
SLEEP1_N
SLEEP2_N
VAUDIOA
VDDAUDIOA
VDDAUDIOB
VAUDIOB
VAUX
VDDAUX
SU1_GATE
SU1_GND
SU1_FB
SU1_ISENSE
VDDSD2
SD2_FB
SD2_FBL
VBAT
BAT_ID
C220
100p
RPWRON_EN
C235 C211
C215
27p 10p
2.2u
PMIC
2V62_VIO
C217
2.2u
VBAT
VBAT
C206
100u
0.1u
TP202
C205
VDDMME
VDDRF2
VDDRF13_AFC
U201
VDDSIMVIB
VDDUMTS
VUMTS
VDDSD1
SD1_FB
SD1_FBL
SINGLE CHARGING IC
V_BUS
1
2
3
4
5
C338 C337
1uF 1uF
560 ohm->(910mA) 2K(10%)->91mA
780 ohm->(680mA)
820 ohm->(646mA)
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3. TECHNICAL BRIEF
Revision A
SG3_RPWRON_EN
RTC_OUT
2V8_VVIB
L202
1V35_CORE 2V7_VRF 2V85_VRF
10u
VBAT 1V5_VBT 2V11_RTC 2V9_SIM 2V65_VBT
C11
VMME
C10
D10
D11
VRF2
E10
VRF3
E11
F10
VRF1
F11
VVIB
G11
G10
VSIM
H11
VAFC
H10
VRTC
H9
J11
FB202
K11
J10
L10
C244
C226
C236 C234 C227 C228 C242 C210
1u 1u 1u 2.2u 2.2u 2.2u
1u
10u
VBAT 2V62_VIO 2V62_VIO
11
PGND
10
IN BAT
9
U310
ISET _PG
BQ25040
8
VSS1 CHG
7
LDO VSS2
6
IFULL EN_SET
C336
1uF
LGE Internal Use Only
LGE Property
R216
ON_OFF2
27K
1V5_VRF 2V9_VMME
1V8_SD
C203 C229 C232 C233
2.2u 2.2u 2.2u 2.2u
2V62_VIO
_PPR
_EOC
_CHG_EN