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Flow Chart of Troubleshooting
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7-21
7-9. Back Light (for Color Main LCD)
Is LCD Contrast set on
high
Set LCD Contrast on high level
END
No
Yes
Yes
Backlight does not work
CN800 pin 14 = H ?
Change the board to board
FPCB
No
Yes
U800 PIN 1 = 7V ?
Check the U800 & the related circuit
No
Yes
Yes
Replace the LCD Module