Hey.. I have a LCD monitor from dell, and it was blacking out. I opened it up and found the bad capacitor... The bad capacitor is 1000uf 16v. I was wondering if i could change that with a capactior that is 450uf 16v? Another question i have is how do i know which side is negative or postive? One side is shaded all gray, and one isnt? Thank you.
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Re: Dell LCD monitor
You should never go lower in capacitance you can go slightly higher however I try to make sure that I never go higher than 20% (the tolerance of electrolytics).
Anyhow you should replace ALL of the caps on the secondary side of the power supply not just one since the other caps will probably be ready to fail if are the same make.
You need to use Low ESR 105 C replacements not just any General Purpose cap that most electronics stores carry.
I recommend Panasonic FCs from Digikey or contact Topcat for your caps.
As for which side is the negative side the one with the band running down is negative.
Manufacturers usually put a bunch of - marks down this band which indicates the capacitors negative lead.Last edited by Krankshaft; 10-19-2008, 02:10 PM.Elements of the past and the future combining to make something not quite as good as either. -
Re: Dell LCD monitor
Alright.. So i should change every single cap? Or just the ones that are like the broken one? And can you point me to a website that has thesse.. I have had trouble finding them in radioshack.Comment
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Re: Dell LCD monitor
There's a lot of interest in the Dell and Viewsonic and Benq LCD failures.
So when you meantion it please specify which model for everyones curiosity.JimComment
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Re: Dell LCD monitor
Originally posted by arneson
It is a Dell LCD E152-E153FPc...Comment
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Re: Dell LCD monitor
Thank you.
If you can tell us the brands of caps that are in it we can tell you which of those usually cause problems.
All of whatever brand that bloated should go.
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After you know which should go and if you have time a list of the the problem caps such as: qty(of that cap), uF, volts, and diameter might be helpful to someone else reading this later on.
.Mann-Made Global Warming.
- We should be more concerned about the Intellectual Climate.
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Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
- Dr Seuss
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You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
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Re: Dell LCD monitor
Thank you guys very much.. Your fast replies are amazing. Well the "brand name" of the bulged capacitor is from Nichicon and there are 2 of them. They are both 1000uf 16v... So i guess i should change both of them right?Comment
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Re: Dell LCD monitor
Since you replied so quickly, I checked on this one:
http://cgi.ebay.com/DELL-E153FPc-FLA...d=p3286.c0.m14
3 hrs at $32 is what I would pay just to get the glass.
The shipping is what kills it.
I've ended up with boxes of these things.Last edited by arneson; 10-19-2008, 04:46 PM.JimComment
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Re: Dell LCD monitor
Yeah. Im thinking of getting a new one if replacing the capacitors wont work. But i figured i could try and get a learning experience while im at it. This replacing of capacitors is interesting.Comment
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Re: Dell LCD monitor
Nichicon is a good brand but they had a bad batch a few years ago are those caps on the inverter HM or HN series by any chance?
Those are the two series affected.
As for finding the caps PM Topcat or go to Digikey.com.
Low ESR caps made by Rubycon, Nippon Chemi-con, Panasonic, Samxon, or Nichicon to name a few will be fine.Last edited by Krankshaft; 10-20-2008, 07:51 AM.Elements of the past and the future combining to make something not quite as good as either.Comment
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Re: Dell LCD monitor
That's correct.
Nichicon HN and HM with date codes between 2001-2004 may be from bad batches.
Date code is as: [letter][2 digit year][2 digit week] and should be marked right on the caps.
HM and HN are different grades and you should consider the grade in choosing replacements.
So which series are they? (Even if they're not HN/HM.)
.Mann-Made Global Warming.
- We should be more concerned about the Intellectual Climate.
-
Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
- Dr Seuss
-
You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
-
Comment
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Re: Dell LCD monitor
Hi all, I need help in buying a Widescreen LCD Monitor for my new desktop? I am choosing between 2 monitors, both of them are in the same price range. Samsung 22" widescreen LCD contrast ratio of 1000:1. LG 22" widescreen LCD contrast ratio of 10000:1. The LG has a much bigger contrast ratio and I do not know what this means. I just want the best picture quality for my games and DVD watching. ThanksI need a lcd monitorComment
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Re: Dell LCD monitor
Samsung is known for crappy caps.
I have no idea about LG.Mann-Made Global Warming.
- We should be more concerned about the Intellectual Climate.
-
Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
- Dr Seuss
-
You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
-
Comment
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Re: Dell LCD monitor
Yeah both of my Samsung LCDs had Crapxon caps in them I cracked them open and replaced them with Panasonic FCs.
They weren't bulging.... yet. But I like to take a proactive approach.Elements of the past and the future combining to make something not quite as good as either.Comment
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