Touch Module - LG -P940 Service Manual

3.19 Touch Module

3.19 Touch Module
Touch module is connected to Main PCB with 10-pin connector.
Touch module is connected to Main PCB with 10-pin connector.
The Touch module is controlled by IC Interface in OMAP4430.
The Touch module is controlled by I2C Interface in OMAP4430.
TOUCH_INT_N
Pin Map
1 GND
2 SCL
3 SDA
4 INT_N
5 GND
6 GND
7 Reset
8 VDD(3.3V)
9 VSEL(1.8V)
10 MAKER_ID
LGE Internal Use Only
Touch Connector
VSEL_1.8V
1
2
I2C2_SCL
3
I2C2_SDA
4
5
Figure. Schematic of Touch connector
TOUCH_3.3V
CN1102
10
9
8
7
6
C1112 C1111
1u
2.2u
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3. TECHNICAL BRIEF
TOUCH_RESET
VSEL_1.8V
R1109
TOUCH_Maker_ID
10
Only for training and service purposes