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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
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7-17
9. Back Light (for Color Main LCD)
Is LCD Contrast set on high
level in the Menu?
Set LCD Contrast on high level
END
No
Yes
Yes
Backlight does not work
CN601 pin 5 = H ?
Change the board to board
FPCB
No
Yes
U601 PIN 1 = 12V ?
Check the U601 & the related circuit
No
Yes
Yes
Replace the LCD Module