Touch Module - LG -V909DW Service Manual

3.19 Touch Module

Touch module is connected to Main PCB with 10-pin connector.
The Touch module is controlled by I2C Interface in T20.
TOUCH_INT_N
TOUCH_I2C_SDA
TOUCH_I2C_SCL
TOUCH_RESET_N
Pin No.
1
2
3
4
5
6
7
8
9
10
LGE Internal Use Only
V_TCH_3V3
Figure. Schematic of Touch connector (Main Board)
Signal
V_TCH_POWER
TOUCH_INT_N
TOUCH_I2C_SDA
TOUCH_I2C_SCL
TOUCH_RESET_N
V_TCH_POWER
GND
GND
GND
TOUCH_ID
Table. Interface between Touch Module and MAIN Board
V_TCH_POWER
CN900
1 10
2 9
3 8
4 7
5 6
description
Power supply for driver IC
Interrupt
I2C data
I2C clock
Reset
Power supply for driver IC
-
-
-
Maker ID
- 57 - Copyright © 2011 LG Electronics. Inc. All right reserved.
3. TECHNICAL BRIEF
TOUCH_ID
C913
0.1u
Only for training and service purposes