LG KS20 Operating Instructions Manual page 54

3. TECHNICAL BRIEF
3.11.4. Touch Interface
In KS20, 4-wire touch screen panel is used for user input method. Two resistive layers make up a 4-
wire touch screen panel and are separated by insulating dots. The inside surface of each layer is
coated with a transparent metal oxide coating that generates a gradient across each layer when
voltage is applied.
LGE Internal Use Only
[Table 1.8] MSM7200 Touch screen connections
[Table 1.9] Recommeded operation conditions
TOUCH SCREEN CONNECTOR
CN101
G2
6
5
4
3
2
1
G1
ENQY0008602
04-6298-006-000-883
[Figure1.23] Touch screen circuit
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TOUCH_Y2YU
TOUCH_X2XL
TOUCH_Y1YD
TOUCH_X1XR
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