Dell E228WFPC goes dim after 10 minutes, not 2 seconds

[budm]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

Since the Tantalum is more likely to be polarized and the ceramic one is not, you should make sure the polarity is correct by using the meter to see which is positive and negative on the board.

[smalltownguy]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

Bringing this thread back on topic, I was finally able to get to replacing this cap tonight, and I'm 5 minutes into burn testing this monitor now.

I stopped by the local Rat Shack and they didn't have any ceramic caps in 1uf flavor, but they did have a couple of tantalum ones. So, I used one of those.

I'm going to give this monitor a good burn test tonight, and as long as the inverter board holds up, I'll call this repair done.

I'll try to snap some pics of my shitty soldering job so you can all laugh at me

[Jasgriff]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

Reviresco,

What was the initial fault with your Dell? is it the same as the title states 'Goes dim after 10 minutes not 2 seconds' or was it going dim after 2 seconds before you changed the caps?

[budm]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

We need more details such as which caps, all the caps are replaced? Good pictures of the board will helps a lot, make sure to use 'GO ADVANCED' and upload the pictures.
You may have bad lamp assembly, bad transformer, power supply, inverter circuits problem.

[Reviresco]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

Ok, soldered new caps on power board, still doesn't work.
I used the same values as old caps, Panasonic brand, made sure negative lead to negative side, made sure the lead and board had a good solder joint. Picture comes on for a few seconds, and right off again.

Any thoughts?

[Reviresco]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

Thanks budm for the quick reply. Your help is appreciated.

I am still a newbie, and trying to cut my teeth on this Dell monitor...
Frustrating piece of... Bleep da bleep. lol

[budm]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

It is just X2 (across the line and Neutral for noise filter), the monitor will function without it. You can get it from Digikey: Panasonic ECQUL series, there should be more numbers on it for the Value.

[Reviresco]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

Help,
I am not sure what it is, but I accidentally melted the plastic on this piece and I need to order another.

It has on it: MPX-X2 GMF
250v~ / 275~

It's a Dell E228WFPC power board, number: 715G2594-1-4

Thank you for any and all help.

[Rtech]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

I could have, but the top one is very close to R819,it would be easy for a slip of the soldering iron to cause damage to that.The way i done it used 2 previously non use solder points so therefore logically in better shape than the originals,and it made the job simpler as the legs of the replacement disc fitted very nicely to those points,without having to bend then,twist them etc etc.,so it was also much neater and professional in the end.

[selldoor]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

Ok Rtech just to be sure I have done a pic of what I think you did.
Perhaps you can confirm.
Was there some reason not to use the C608 pads?

[Rtech]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

I first removed the C806, and there are two non used solder points directly next to the 'o' link,these go to the same points where the C806 was connected to.I then put a piece of insulation tape over the '0' link and the Diode next to it,put a little sleeving on the legs of the ceramic Disc I was fitting, and soldered to the two non used points,with the ceramic disc resting on the insulation tape.As the disc is thin when lying flat on the tape it does not cause any problems,and has worked very well.

[smalltownguy]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

Restored to normal,and my son has taken it to his home this evening to use for a day or so,as his old Benq has given up the Ghost,so this is a good way to give the Dell a really good soak test.

Aha...got it. Where did you solder the ceramic cap?

[Rtech]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

Restored to normal,and my son has taken it to his home this evening to use for a day or so,as his old Benq has given up the Ghost,so this is a good way to give the Dell a really good soak test.

[smalltownguy]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

Brad, regretfully the Monitor now totally built back up to its normal state.

Meaning the problem has re-occured? Or meaning you've buttoned it all back up and don't want to crack it open again?

[Rtech]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

Brad, regretfully the Monitor now totally built back up to its normal state.

[smalltownguy]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

After not being able to participate in 'Badcaps' since Dec last year due to having some Surgery,it is nice to see it is still going strong and helping those that need it.
This was of great interest to me, as I have had the same monitor with the fault for a few months now,and I know lots of others have in the past.
So took out C806 as advised, repalaced with 0.1uf,50v ceramic disc,and it has been running for the last 4 hours with no shutting down,with the fault on it used to take 30-40 minutes before fading away.I am delighted,both with fix and the return to the Forum.

Can you provide some photos of the repair you did? I will likely send this off to have this repair done, but I'd like to see what you did so I can instruct someone to do the same.

Thanks,

-Brad

[Rtech]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

After not being able to participate in 'Badcaps' since Dec last year due to having some Surgery,it is nice to see it is still going strong and helping those that need it.
This was of great interest to me, as I have had the same monitor with the fault for a few months now,and I know lots of others have in the past.
So took out C806 as advised, repalaced with 0.1uf,50v ceramic disc,and it has been running for the last 4 hours with no shutting down,with the fault on it used to take 30-40 minutes before fading away.I am delighted,both with fix and the return to the Forum.

[selldoor]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

Perhaps a good time to update your profile with where you live and voltage?

[smalltownguy]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

I'm no good at surface mount soldering. Anyone here up for the challenge?

[smalltownguy]

Re: Dell E228WFPC goes dim after 10 minutes, not 2 seconds

10 minutes in on the bad monitor again, and


*oops*

There it went.


It's weird...it's like at about 10 or 11 minutes, I can see the brightness of the monitor go up just the tiniest little bit, and then within 30 seconds, it'll go dim.

It is most definitely the inverter board.

So, my inverter board is bad, and my supposed new replacement inverter board is also bad. Great. Time to initiate a Paypal claim with the eBay seller.