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4. TROUBLE SHOOTING
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Only for training and service purposes
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4.13 LCD Troubleshooting
LCD control signals are generated by QSC6270.
The signal path is : QSC6270 -> FPCB -> LCD Module
START
TP1 > 3.4
TP2 is 1.8?
TP3 = 2.8
Change the Main PCB
No
Yes
Change the LCD
LCD display OK?
Yes
Change the Main PCB
END
No