Touch Trouble - LG -P768 Service Manual

4. TROUBLE SHOOTING

4.18 Touch trouble

Touch control signals are generated by OMAP4430. Those signal's path are : OMAP4430 -> Touch Module
START
CN1102 : LCD connector
Check the touch connector
Disconnect Reconnect the touch
connector
Yes
Check Touch Power
No
1. VSEL_1.8V(R1119)-TP1
Change Touch module
Touch is OK?
2.Touch_3.0V(C1112)-TP2
No
No
Change the Main board
The LCD works
END
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