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Old 02-06-2012, 09:14 PM   #1
ScorpEM
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Join Date: Aug 2010
Posts: 4
Default Viewsonic VX2255wmb-2 turns off after 10 seconds

I have 2 ViewSonic vx2255wmb-2 LCD displays, both with the same problem. When i power either of them on they turn off after about 10-20 seconds, unless they have been sitting for a few weeks then they last about 5 min.
I have replaced all caps except for the big 150uf 420v, this could be the problem and I'm planning on ordering one but it would be nice to know what is really wrong and fix it without doing things i don't have to. I have a third that I replaced a few bulged caps and it has been working fine for about a year now.
I would be very grateful for help.
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Old 02-06-2012, 09:29 PM   #2
retiredcaps
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Default Re: Viewsonic VX2255wmb-2 turns off after 10 seconds

Quote:
Originally Posted by ScorpEM View Post
When i power either of them on they turn off after about 10-20 seconds, unless they have been sitting for a few weeks then they last about 5 min.
1) You could have 2 seconds to black. This is explained in posts #19 and #20.

http://www.badcaps.net/forum/showthread.php?t=10419

Your primary suspects are

1) bad caps
2) bad inverter transformer
3) bad ccfls
4) bad ccfl wiring (especially the top ccfl return wiring)
5) others

2) Does the power LED stay green/blue?
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Last edited by retiredcaps; 02-06-2012 at 09:31 PM..
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