Lcd Back Light - Samsung SGH-Z720 Service Manual

Flow Chart of Troubleshooting

9-12. LCD Back Light

Backlight does not work
Yes
No
Is BACKLIGHT set
Set BACKLIGHT on AlwaysON
AlwaysON in the Menu?
Yes
No
C600 ≥ 3.3V
Replace or Resolder TR601
Yes
No
HDC600 Pin41 ='H'? Check UCP300, HDC600, Slide FPCB
Yes
Replace the LCD Module
Yes
END
9-21
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