Question about Dell ST2420L 24 inch LCD Monitor
When I shut down the computer, the screen goes into power save mode (HDMI connection to the computer). When I turn the computer on again, the screen does not go out of power save mode and stays black... Any ideas?
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Posted on Jan 02, 2017
ok every one there is a fix the are 4 transistor 2sc5707 and 2 transistorfu9024n and i cap 16v1000uf
if you replace these your problem will be fix for a while but to it better then dell replace the 2sc57o07 with radio shack tip3055 they are 15 amp trans instead of the low 8 amp dell uses they fail because the amps at the test for the transistor is more than 8amps all the correct parts are sold in a kit on ebay look up the 2sc5707 but i recommend upgrading to the tip3055 transistors they are a bigger transistor but you can lay them down and they work great. the capicator can be found at radio 35v1000uf is a good replacment make you monitor better because the new parts are stronger then the originals so no more failures after.
Posted on Feb 20, 2009
I had the same problem and I went to the first button on the monitor to the left(main menu) then with the button to the right (-) I scrolled down to factory reset. I also did the osd setting and I'm not sure what fixed it, but I havn't had the problem sence.
Posted on Feb 28, 2009
inside the power pack is a pulse IC chip they fail and cause all kinds of havoc also caps can cause issues unaccounted for, I would start at replacement of the IC about 2 dollars on E bay, and replace any bad capacitors you can see, they look domed or are leaking color from the top creases. after that get back with me and we can either proceed or you can rate me fixya, have a great weekend
Posted on Apr 05, 2009
its a bad solder/heat problem with the power board you need to repalce
eaither the board or parts on the board the parts on the board are:
Q743 - FU9024N
Q741 - FU9024N
Q759 - 2SC5707
Q739 - 2SC5707
Q760 - 2SC5707
Q740 - 2SC5707
and part PF751 the black fuse - 3A 125V
i don't promise that this will fix it but its worth a shot
Posted on May 16, 2009
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