LG GT500 Service Manual page 181

7. CIRCUIT DIAGRAM
1 2
Three-Axis Interface
A
B
Micro SD Card Interface
C
VDDE_1V8
U403
A5
VCCA
C5
DAT0_DIR
B2
MICROSD_DAT0 DAT0A
C1
MICROSD_DAT_DIR DAT123_DIR
A2
D MICROSD_DAT1 DAT1A
B4
MICROSD_DAT2 DAT2A
A4
MICROSD_DAT3 DAT3A
B5
MICROSD_CMD_DIR CMD_DIR
B1
MICROSD_CMD CMDA
A3
MICROSD_CLK CLKA
A1
APP_MMC_FB_CLK CLK_F
B3
GND1
C3
GND2
C409
0.1u
MICROSD LEVEL SHIFTER
E
Touchscreen Interface
F
VBAT
VDD_TOUCH_2V8
RP103K281D-TR-F U406
4 1
VDD VOUT
3 2
APP_GP_TOUCH_LDO_EN CE GND
C413
1u
G
H
1 2
LGE Internal Use Only
3 4 5
VDDE_1V8
VDDH_2V75
U401 BMA150
1 10
NC1 NC2
2 9
VDD VDDIO
3 8
GND SDI APP_GP_3AXIS_SDA
4 7
APP_GP_3AXIS_INT INT SDO
5 6
CSB SCK APP_GP_3AXIS_SCL
C400
22n 0.1u
C401
Three-Axis Sensor
VDDG_2V85
MICROSD_DAT2_2V85
SN74AVCA406EZXYR
MICROSD_DAT3_2V85
D5
VCCB MICROSD_CMD_2V85
D2
DAT0B MICROSD_DAT0_2V85 MICROSD_CLK_2V85
D1
DAT1B MICROSD_DAT1_2V85 MICROSD_DAT0_2V85
C4
DAT2B MICROSD_DAT2_2V85 MICROSD_DAT1_2V85
D4
DAT3B MICROSD_DAT3_2V85
VDDE_1V8
C2
CMDB MICROSD_CMD_2V85
D3
CLKB MICROSD_CLK_2V85
C410
0.1u
APP_GP_MMC_DETn
MICROSD SOCKET
VDDE_1V8 VDD_TOUCH_2V8
R423 0
OE A3
B3 A3
R426 0
GND TXS0104EZXUR A2
B4 A2
U404
APP_GP_TOUCH_PENIRQn_2V75 B1 A1
C1 A1
C414 APP_GP_TOUCH_SCL_2V75
1u APP_GP_TOUCH_SDA_2V75
TOUCH LEVEL SHIFTER
3 4 5
7
6 8
Motor Interface
VDDG_2V85
GND
1
2
3
R416 2.2
4
5
6
7
S400 DM3AT-SF-PEJ
8
Hirose ( Micro-SD Socket, Normal ,T= 1.68)
SWA SWB ENSY0020901
1608
C408
10u
VA406
EVLC18S02003
VDD_TOUCH_2V8
C411 C412
1u 0.1u
U405 TSC2007IYZGR
A1 C1
APP_GP_TOUCH_SDA AUX SDA
A2 C2
VDD_REF A1
A3 C3
APP_GP_TOUCH_SCL X+ X-
B1 D1
APP_GP_TOUCH_PENIRQn_2V75
PENIRQ- SCL
B2 D2
APP_GP_TOUCH_PENIRQn A0 GND
B3 D3
Y+ Y-
EUSY0337101
TOUCH SCREEN DRIVER IC
6 7 8
- 182 -
9 10 11 12
VDD_MOTOR_3V3 VDD_MOTOR_3V3
R402
150K
C1 B2
BYPASS GND
B1 A1
_SHUTDOWN VO- MOTOR_N
R408 51K C2 B3
IN+ VO+ MOTOR_P
R411 51K C3 A3
MOTOR_PWM IN- VDD
U400 TPA6205A1ZQVR
R412
R413 1K
150K
C404
0.01u
R414 1K C403 1u
MOTOR AMP
VBAT
VDD_MOTOR_3V3
RP103K331D U402
4 1
VDD VOUT
3 2
APP_GP_MOTORLDO_EN CE GND
C406
1u C407
1u
LDO 3.3V For MOTOR
150mA
APP_GP_TOUCH_SDA_2V75
TOUCH_X-
APP_GP_TOUCH_SCL_2V75
TOUCH_Y-
TOUCH_Y+
TOUCH_X+
9 10 11 12
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Only for training and service purposes
A
B
C
D
E
F
G
H