LG CU920 - LCD Troubleshooting

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4. TROUBLE SHOOTING
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4.16 LCD Troubleshooting
LCD control signals are generated by MSM6281. The signal path is :
MSM6281 → CN500 → LCD Module
Start
GO to power on trouble shooting
Key LED is on?
Chang e the LCD module
Yes
NO
Press END key
Disconn ect and r econn ect
The LCD conne ctor (CN500
)
END
LCD di spl ay OK?
No
Yes
END
LCD di spl ay OK?
No
Yes
Change the Main board
END
LCD di spl ay OK?
No
Yes
Chang e the LCD FPCB