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Monitor won't turn on (repair?)

post #1 of 23
Thread Starter 
Got a Dell p2210f monitor at work which won't power on. Possible causes? I was thinking power caps perhaps? Any guides on repairs?

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post #2 of 23
How I would get around this:
1.Plug it in, check the power cable with an ohm meter (surprisingly often cables snap)
2.Visual inspection, dismantle, visual inspection, smell-o-meter for burnt plastic
3.Check inverter if it outputs voltage, lamp if broken
4.If it's anything more serious or something that doesn't show up on google then call a friend that knows some electronics.

cheers
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post #3 of 23
Could be failed capacitors. Visual inspection is always the best. I recommend badcaps.net. Great resource.

Here is a link to the page that helps you in identifying.

http://badcaps.net/pages.php?vid=5
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post #4 of 23
Thread Starter 
In the end turns out it still had a business warranty on so it's being replaced. Means I cannot have it D:
post #5 of 23
Thread Starter 
But, alas, I can has. Turns out Dell didn't care about getting the old one back and as such, I carried it all the way home on a 45 minute rush hour tube journey. So, here she is.



Now, what do? There are no obvious screw holes bar 4 where the stand clips into. Anyone know how to strip these things to check the circuitry?
post #6 of 23
Got a tutorial in my sig, I'm working on remaking it however. Some information is incorrect. Let us know if there are any dead caps, I can help you find new ones.
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post #7 of 23
Thread Starter 
The caps all appear to be fine, with no sign of leaking, bulging etc... So, I bought a multimeter under instructions (apparently its a good life tool to have as well), but I don't know how to use it, where to use it or what to check for.

Do I have to have the monitor plugged into the mains to use it!?
post #8 of 23
Quote:
Originally Posted by 98uk View Post
The caps all appear to be fine, with no sign of leaking, bulging etc... So, I bought a multimeter under instructions (apparently its a good life tool to have as well), but I don't know how to use it, where to use it or what to check for.

Do I have to have the monitor plugged into the mains to use it!?
For most things, you should not plug it into the mains. There are a few things to test with it plugged in, but it is dangerous and there are more likely candidates to test without the danger.

Multimeters are quite useful, but sadly I've found that one needs an ESR meter to properly test capacitors (which are much less useful besides testing caps). What are the brands of the capacitors? CapXon is common in monitor power boards and are the usual culprit.

There should be a fuse on the board somewhere, set it to resistance/ohm and place the probes on each end of it. If you could, it would be easier to troubleshoot with pictures.
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post #9 of 23
Thread Starter 
Excuse me for being a dolt, but without mains power... how does it measure resistance etc... does the multimeter have its own power source? Secondly, here are some pictures



post #10 of 23
Yes your multimeter should have it's own power source. Turn it to OHM and touch the probes together to see if its working. I'm guessing you don't have a digital meter, so the needle should jump close to the zero mark in green.

Just out of curiosity, when you try to turn it on what happens? do any lights turn on when you press the power button on the screen?

Next to the power plug there looks to be another smaller power connector, what is that for? external speakers?
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