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F low Chart of Troubleshooting
9. Back Light (for Color Main LCD)
Backlight does not work
Is L C DC ontrast set on high
level in the M enu?
C N 800 pin 14 = H?
U 800 PIN 1 = 7V ?
R eplace the L C DM odule
Y es
Y es
Y es
Y es
Y es
E N D
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N o
Set L C DC ontrast on high level
N o
C hange the board to board
N o
C heck the U 800 &the related circuit
7- 20
FPC B
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