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Old 05-01-2020, 06:32 PM   #5
R_J
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Join Date: Jun 2012
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Default Re: DELL U2311Hb (E162032 Vol 3) Goes Black After 2 Seconds

Check the voltages on the plug to the main board and see if they remain when the moniitor blanks out. I would suspect one of the ccfl's has an issue, either bad/broken ccfl or broken ccfl lead.

You may have a bad ccfl in the panel, there are 4 ccfl's, 1,2,3,4 so unplug 2,3,4 and see if you get a flash of backlight from ccfl #1 (this may be fairly dim) If you do see a flash of the backlight, unplug 1,3,4 and try again with #2, trying each ccfl by itself should confirm they are working or not. In some cases the wire on the ccfl breaks and that is all that is wrong.

Last edited by R_J; 05-01-2020 at 06:42 PM..
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