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3.13 LCD
Main LCD control signals are generated by MSM8926. Those signal's path are :
MSM8926-> LCD Module
Yes
Yes
LGE Internal Use Only
Start
Press power key
To turn the power on.
Is the circuit powered?
Yes
Disconnect and reconnect
LCD connector.
LCD display OK?
No
Change the LCD module.
LCD display OK?
No
Check
+2V8_VREG_L15 (C7101) TP1
+1V8_VREG_L8 (C7103) TP2
OK?
Yes
Is the circuit powered?
Yes
End
No
Follow the power on
trouble shooting.
No
Change the PM8926 (U4100) or
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3. TROUBLE SHOOTING
main BD.
Only for training and service purposes
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