Dell 1907FPf - Power Led Amber

Service Manual
38
3. Power LED Amber
Is Power LED Amber?
Do the Hsync. & Vsync. Signals exist
in CN301 #13& #14 separately?
Do the Hsync. & Vsync. Signals exist
in R310 & R311?
Do the Hsync. & Vsync. Signals exist
in U401 #89 & #90?
Is the frequency 14.318MHz at #
109
of U401?
Change U401
END
Insert VGA Cable correctly
Check R310 & R311
Change R310 & R311
Change X401
NO
NO
NO
NO
YES
YES
YES
YES
YES