Touch - LG -D620 Service Manual

3.14 Touch

Touch control signals are generated by touch sensor.
Those signal's path are touch sensor -> MSM8926
Reconnect Touch Module CN7200.
Yes
Yes
LGE Internal Use Only
Start
Touch Woks OK ?
No
Change the touch module.
Touch Woks OK?
No
Check +2V95_VREG_L28
(C7201) TP1
+1V8_VREG_L6 (C7505) TP2
Yes
Check I2C Line
(VA7200, VA7201) TP3 OK?
Yes
Touch Woks OK ?
Yes
End
No
Change PM8926 (U4100)
No
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3. TROUBLE SHOOTING
Change Main Board.
Only for training and service purposes