DeLL E152FPc Goes black after a second.
in [Repair]
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From: Jim Yanik on 11 Oct 2009 20:11 Samantha <samantha(a)comcast.net> wrote in news:samantha- 47B939.17105411102009(a)news.giganews.com: > Took the time today to open that monitor. It went pretty smoothly, > found all the tabs with the help of a small spackle knife. Found the > buldging 1000uf 16v capacitor. Found a replacement on an old board from > a TV and swapped the two. I have the monitor on and the test pattern up > now. Have let it set for about an hour now. Will leave it for a few > more to make sure nothing else happens... > > Want to give you all a lot of thanks for the help. I probably would > have stumbled around inside there for quite awhile before I really > figured out how it work. > > Knowing how something breaks (common failures) is invaluable when trying > to troubleshoot something. > > Thanks to all!! > > S. > Congratulations! it feels good,doesn't it? -- Jim Yanik jyanik at localnet dot com
From: D Yuniskis on 12 Oct 2009 13:59
Samantha wrote: > Took the time today to open that monitor. It went pretty smoothly, > found all the tabs with the help of a small spackle knife. Found the > buldging 1000uf 16v capacitor. Found a replacement on an old board from > a TV and swapped the two. I have the monitor on and the test pattern up > now. Have let it set for about an hour now. Will leave it for a few > more to make sure nothing else happens... Chances are (?), the "replacement cap" was not a high temperature device (though it might be... depends on where you cound it in the TV). You really want 105degree (C) devices as they tend to be higher reliability in these applications. Otherwise, you'll be replacing *it* soon! Also, check the manufacturer on the (bad) cap. Chances are there are a few other caps made by the same manufacturer on that board. Often best to just replace them all (I realize you are unlikely to find replacements for all of them on that "TV board" -- but, if you have to order a hi-temp cap you might as well order the rest of them if you want to keep the display running for any length of time) Omit the 400V cap as it seldom fails. Panasonic FM series caps seem to be a good tradeoff between cost and reliability. DOUBLE CHECK COMPONENT HEIGHTS/WIDTHS so you don't end up ordering things that won't fit! > Want to give you all a lot of thanks for the help. I probably would > have stumbled around inside there for quite awhile before I really > figured out how it work. > > Knowing how something breaks (common failures) is invaluable when trying > to troubleshoot something. Exactly. I use repair experiences to guide me in determining what to avoid when *designing* stuff. |