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Old 04-26-2018, 02:44 PM   #8
budm
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Join Date: Feb 2010
City & State: S.F. Bay area
My Country: USA
Line Voltage: 120V 60Hz
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Posts: 36,267
Default Re: Dell U2413 turning off

Check the Voltages when missing and when it does not work, see marked pictures.
The DC Voltage measured between the two legs of the main filter cap in the host side should be around 380 ~ 400VDC when monitor is turned on.
Attached Images
File Type: jpg Power supply function block.jpg (2.56 MB, 86 views)
File Type: jpg Power supply outputs.jpg (1.82 MB, 44 views)
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Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956

Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999

Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl

Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/

TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
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