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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
9-15
9-9. 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
U700PIN3=H?
Check the inserting condition of slide FPCB
Resolder UCP200 or change PBA
No
Yes
U700PIN1=H?
Check the U700 & the related circuit
No
Yes
Yes
Replace the LCD Module