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Flow Chart of Troubleshooting
9-10. 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 U502 and Check HEA500
U502
OK
Replace the LCD Module
Yes
END
9-18
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