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Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
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ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ͑
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3.12.4.1 Touch Windows Interface
Touch screen & Two Touch buttons (menu, back) are a press sensor with an attached flexible PCB.
4-wire resistive touch pannel. Resistive touch screen use the voltage divider principle to generate voltage that
represent X and Y coordinates.
Figure. Touch window Sensor Schematic
Figure. Touch window Sensor Block Diagram
100
R608
100
R607
100
R606
100
R605
CN605
6
5
7
4
8
3
9
2
10
1
G1
G2
G3
G4
D606
4
3
5
2
6
1
TOUCH_Y1YD
TOUCH_X2XL
TOUCH_Y2YU
TOUCH_X1XR
Touch Screen Connector
Содержание GT540
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