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