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Flow Chart of Troubleshooting
9-9. Back Light (for Color Main LCD)
Backlight does not work
Yes
No
Is BACKLIGHT set AlwaysON
Set BACKLIGHT on Always ON
in the Menu?
Yes
Not OK
Check the outflow voltage of
Replace U301
U301(PIN 7) is equal to 3.7V
OK
Replace the LCD Module
Yes
END
9-19
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