LG -P768 Service Manual page 138

SENSOR, MOTOR, Key Matrix Block Diagram_P768
14. SENSOR, MOTOR, Key Matrix Block Diagram_U2(EU)
GPIO_104
OMAP4430
GPIO_28
U501
GPIO_13
I2C4_SCL(GPIO_132)
I2C4_SDA(GPIO_133)
GPIO_25
GPIO_143
I2C4_SCL(GPIO_130)
I2C4_SDA(GPIO_131)
GPIO_16
I2C2_SCL(GPIO_128)
I2C2_SDA(GPIO_129)
GPIO_52
GPI_175
GPIO_171
GPI_176
GPIO_143
I2C1_SCL/SDA
TWL6040
LGE Internal Use Only
U801_Accelerometer
MOTION_INT1
INT1
+ Digital compass sensor
COMPASS_DRDY
DRDY
I2C4_SCL
I2C4_SDA
VIBE_EN
Motor driver
EN
VIBE_PWM
PWM
U806
I2C3_SCL
Proximity sensor
SCL
I2C3_SDA
SDA
PROX_INT
INT
I2C2_SCL
I2C2_SDA
Touch
TOUCH_INT_N
KEY_R[0]
up
down
KEY_C[0]
KEY_R[1]
VOLUME KEY
PROXI_LDO_EN
VDDIO
VDD
SCK SDI
TWL _LDO_3.0V
VIB_L_P Motor
Q-Coin
VIB_L_N
IO_VDD
LEDA
SENSOR_3.0V
U1101
VDD
TOUCH_1.8V
TOUCH_3.3V
- 138 - Copyright © 2012 LG Electronics. Inc. All right reserved.
6. BLOCK DIAGRAM
Sensor LDO
VSEL_1.8V
U804
SENSOR_LDO_EN
REGEN1
TWL 6030_PMIC
U702
PWR_ON_SW
PWR ON KEY
VSEL_1.8V
PROXI_3.0V
Only for training and service purposes
SENSOR_3.0V
PROXI_3.0V