LG GS290 Service Manual page 113

7. CIRCUIT DIAGRAM
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FM_SPK_INN
FM_SPK_INP
USB_OEN
USB_DAT_VP
USB_SE0_VM
TXON_PA
SD_1V8 VAUDB_2V5 VBAT
VAUDA_2V5 VFM_2V9
I
USB_DP
USB_DM
PMRSTN
VCXO_EN
BT_CLK_REQ
H
C207 C205 C200
1u 1u 1u
C204
0.1u
G C234 C239
C222
22u 2.2u
10u
F
E
D
C
B
A
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LGE Internal Use Only
10 9 8
PMIC
VUSB VBAT
FM_SPK_OUTP
VBAT FM_SPK_OUTN
VPLL_1V35 VIO_2V62 VBAT
C236 C238
1u 2.2u VBAT
VBAT
VBAT
B1
RCV
C2
VPIN
D3
VMIN
C1
D+
D2
D-
E3
RESET_N
D1
RESET2_N
E2
SLEEP1_N
E1
SLEEP2_N
F2
VAUDIOA
U202
F1
VDDAUDIOA
PMB6821
G2
VDDAUDIOB
G1
VAUDIOB
H2
VAUX
H1
VDDAUX
J1
SU1_GATE
J2
SU1_GND
H3
SU1_FB
J3
SU1_ISENSE
K1
VDDSD2
K2
SD2_FB
L2
SD2_FBL
C209 C227 C226
2.2u 0.1u 2.2u
Micro USB
VIO_2V62 VUSB VBAT
V_BUS
D2 D5
BAT VB
R210 30 A4 C5
USB_DM USW_DM
R209 30 DN1 COMN1
A5 U200 B5
USB_DP DP2 COMP2 USW_DP
FB200
B3 B4
UART_RX U1 UID USW_ID
TP203 A3 MAX14526EEWP+TCC6 RPWRON_EN
UART_TX U2
R200
B1
RES
A1 2.2K
MIC
D4 D1
AUD1 CAP
D3
AUD2
C4
GND
A2 C3
ISET IC
I2C_SCL C206
2.2u C213
I2C_SDA
DNI
USW_INT
VIO_2V62
R218
10K
10 9 8
7 6 5
R214
RTC_OUT ON_OFF2
27K
VBAT
RPWRON_EN
C241
1u
C214
0.1u
CORE_1V35 CAM_A_2V8 VSIM_2V9 VBT_2V65 SD_1V8
L201 VBAT CAM_2V85 RTC_2V11 VRF_2V85 VRF_1V5 VMME_2V9
10u
C11
VMME
C10
VDDMME
D10
VDDRF2
D11
VRF2
E10
VRF3
E11
VDDRF13_AFC
F10
VRF1
F11
VVIB
G11
VDDSIMVIB
G10
VSIM
H11
VAFC
H10
VRTC
H9
VDDUMTS
J11
VUMTS
FB201
K11
VDDSD1
J10
SD1_FB
L10
SD1_FBL
C208 C240 C223 C237 C219 C230 C229 C228 C231 C202 C235
2.2u 1u 1u 1u 1u 2.2u 1u 2.2u 2.2u 1u
10u
Single Charging IC for uUSB
V_BUS
V_BUS
CN200
6
8
10
12
14
1 SC200
2
USW_DM
1 2
3
USW_DP
4
USW_ID
5
7
RPWRON_EN
C221 C220 9
DNI 22p 11
13
15 C210 C212
1u 1u
GU073-5P-SD-E1500
(645mA) (105mA)
7 6 5
- 114 -
4 3 2
Power On
RTC_2V11
RPWRON_EN
END_KEY_IN
KP_IN[6]
3
R226
2 Q200
RPWRON END
PWRON
10K
1
3
END_KEY_IN 2 Q201
KP_OUT[2]
1
External Reset JIG Connector
VIO_2V62
RTC_2V11
R225
DNI
U203
7 8
A1 VCC
SPOWER_INT 6 1 PM_INT
B1 Y1
5 2
_RESET Y2 B2 PMRSTN
4 3
GND A2
C242
NC7WZ08L8X_F113
DNI
R203 0
R202 0
VIO_2V62 VIO_2V62 VBAT VIO_2V62
11
PGND
1 10
IN BAT
2 9
ISET U201 _PG _PPR
BQ25040
3 8
VSS1 CHG _CHG_EOC
4 7
LDO VSS2
5 6
IFULL EN_SET _CHG_EN
C224
1u
4 3 2
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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