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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
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7-19
7-9. Back Light (for Color Main LCD)
Is LCD Contrast set on
high
Set LCD Contrast on high level
END
No
Yes
Yes
Backlight does not work
U705 PIN 2 = H ?
Resolder UCP200 or change PBA
No
Yes
U705 PIN 10 = 3.9V ?
Check the U705 & the related circuit
No
Yes
Yes
Replace the LCD Module