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3.9 Touch Sensor
Change MT6329(U804)
LGE Internal Use Only
Reconnect Touch Module CN7203
Touch Woks OK ?
No
Check Power
+1V8_VIO_MTK(TP1) / +3V0_TOUCH_MTK (TP2)
Power is OK?
Check I2C Line & Signal Line (TP3 &TP4)
Touch Works OK?
Change Touch Module
Touch Works OK?
Change Main Board
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3. TROUBLE SHOOTING
START
No
Yes
No
No
END
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Only for training and service purposes
Yes
Yes
Yes
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