Dell E228WFPC goes dim after 10 minutes, not 2 seconds

[al.rob]

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

I just found one of these monitors in the trash yesterday and it had this same issue. I removed C806 and tacked on a 1uf 50V electrolytic (neg on the pad that connects to D812) since that is what I had. The monitor is working now. Thanks for the help.

[beavrtek]

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

Unless you meant c806? That would make sense. disregard.

[beavrtek]

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

btw, the issue I'm dealing with is the loss of backlighting within 2 sec of power on. ty.

[beavrtek]

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

Hi 1supertech,
Would you please give a little more detail on c706. I can't locate it on the main board of my E228WFPC (yes,"C").
Has the matter of c706 in relation to this unit already been discussed? I was unsuccessful with a forum search.
Thanks much,
beavrtek

[1supertech]

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

Hello everyone I am here to confirm that reflowing c706 cured my monitor problems
Tested for 1 hour and still running

[newtothis]

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

Ugh, problems though.. Monitor was working great after the C806 reflow.. then I put it all back together and now the lower 2/3rds of the monitor aren't working

They are lighter than the top 3rd which makes me think the LCD row drivers now have an issue? What the hell could I have done wrong? I've disassembled the whole thing again and now I'm to my wits end, this monitor is about ready to go to the trash can

You say you shoved the IC around, Have you created any bridges etc?

Just adding flux and reflow without moving it around is enough btw

[Josephur]

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

Ugh, problems though.. Monitor was working great after the C806 reflow.. then I put it all back together and now the lower 2/3rds of the monitor aren't working

They are lighter than the top 3rd which makes me think the LCD row drivers now have an issue? What the hell could I have done wrong? I've disassembled the whole thing again and now I'm to my wits end, this monitor is about ready to go to the trash can

[smalltownguy]

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

Wow...I'd almost forgotten about this. Glad someone else could make some use of it!

[Josephur]

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

Thank you all for your help, I heated up C806 with a rework heat gun and shuffled it around with some tweezers and put it back into place, backlights no longer exhibit the 2 second power off problem, monitor fixed

Seems to have been a cold solder joint, or something of the like?

[nitelite]

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

This thread helped with my E228WFP repair but is missing a clear success report, so here goes.

For me, the fix was C806 replacement. I used a 1uF 25V ceramic surface mount cap.

History:
1. Monitor had 2 seconds to black problem.
2. Soldered thru hole cap on top of C806 - no change.
3. Although caps had no visual defects, did full recap.
4. With thru hole cap still on C806, took a little longer, but still went black.
5. Removed thru hole cap and smt cap and replaced with new smt cap
6. Like new for months now.

Notes on recap: One cap is directly under stand attach screw and stock height is VERY critical. Ask me how I know

[TheBeesKnees]

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

Well, glad to say I fixed my Samsung Took a while, but got it done. As for the Dell, because from what I read, seemed like the resister fix was for me, and not C806, I tried it. It works, but the left side like another user gradually gets dark, and C806 seems to fix this. Not sure if I should remove the resistor, but I'll be ordering the part for C806. At least I know that C806 seems to fix MOST of this Dell's model despite symptoms.

[TheBeesKnees]

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

Hey guys. I know this is old, but hopefully someone can steer me towards the right direction. I naively bought this monitor from a Goodwill Outlet Store since my Samsung LCD died. I plugged it in and the boot diagnostic graphic showed and disappeared after 2 secs. I thought this was normal until I plugged in via both vga and dvi onto my computer and same thing: 2 seconds of my desktop each time I power on. Picture looks great as long as it lasts. I had poor lighting so I'm not sure if the backlight just turns off, and of course, after reading about bad caps, I couldn't help myself but to rip apart the monitor. Looked at least 5 times at both boards and caps don't look bad. I know the recommendation for my symptom is to recap as it's not reflective of the title. I probably will try this later, but I read about C806, and wondering if this was known to help the 2 second problem as well. My guess is NO because 2 seconds isn't long enough to raise the temperature passed the tolerance of a faulty cap at C806, but I'm a noob at soldering so I want to try the easiest fix first. I'm highly confident I can recap my main LCD, so if I don't get any new info, I'll prob recycle it. Can't really provide any more details other than pictures, but like I said, everything pretty much looks new when opened it, including the super tiny C806 ceramic cap.

[smalltownguy]

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

Just stop, cool down and think. You have a working monitor with a bad screen and a good LCD with bad boards. Just swap the boards from the good monitor with the ones from the bad board monitor and everything should be cool so to speak. Make sense, if not PM me and I will take them off your hands for the cost of shipping.

So, killian, what's the verdict? Were you able to resurrect one or both of them?

[Ritalin]

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

Dang it! Was hoping you had a problem or still had the monitors... I just picked one of these up today and am about to start trouble shooting it...

[smalltownguy]

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

Alright, these monitors are on their way to killian6pk. Good luck, man!

[killian6pk]

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

My ebay monitor has 2 seconds to black. I'm done trying to eek out a repair on this. To get it fixed properly, I'm going to need to throw more money at it than I care to. Would anyone like these two monitors?

http://minneapolis.craigslist.org/ws...115527673.html

Yours for the cost of shipping only.

*washing my hands of these*

Just stop, cool down and think. You have a working monitor with a bad screen and a good LCD with bad boards. Just swap the boards from the good monitor with the ones from the bad board monitor and everything should be cool so to speak. Make sense, if not PM me and I will take them off your hands for the cost of shipping.

[smalltownguy]

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

I don't believe it's the power save. The monitor will turn back on again after going dim, but it won't stay on for very long. Usually 10-15 secs, then 5-10 secs, then pretty much 2 seconds to black consistently after that.

All of the symptoms point to overheating, but I can't seem to pinpoint it. Heating the board before turning it on doesn't seem to consistently replicate the issue.

In another development, I just won an auction today on feeBay for a clone of this monitor for $25. The screen has pressure marks, but the monitor is working. I'm going to wait until it arrives, swap in my panel, and see how it goes.

My ebay monitor has 2 seconds to black. I'm done trying to eek out a repair on this. To get it fixed properly, I'm going to need to throw more money at it than I care to. Would anyone like these two monitors?

http://minneapolis.craigslist.org/ws...115527673.html

Yours for the cost of shipping only.

*washing my hands of these*

[smalltownguy]

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

Hi - How about trying the external heat again - maybe another cap with the same problem. Oh and just to be sure make certain the monitor power save
mode is not kicking in. This may have been asked and answered but after it has has gone dim does it come back on straight away when you switch off and back on. When you do that does it still take 10 mins to go off or is it quicker because its warm. If you just leave it dim does it stay dim or if left long enough does it come back on.

I don't believe it's the power save. The monitor will turn back on again after going dim, but it won't stay on for very long. Usually 10-15 secs, then 5-10 secs, then pretty much 2 seconds to black consistently after that.

All of the symptoms point to overheating, but I can't seem to pinpoint it. Heating the board before turning it on doesn't seem to consistently replicate the issue.

In another development, I just won an auction today on feeBay for a clone of this monitor for $25. The screen has pressure marks, but the monitor is working. I'm going to wait until it arrives, swap in my panel, and see how it goes.

[selldoor]

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

Hi - How about trying the external heat again - maybe another cap with the same problem. Oh and just to be sure make certain the monitor power save
mode is not kicking in. This may have been asked and answered but after it has has gone dim does it come back on straight away when you switch off and back on. When you do that does it still take 10 mins to go off or is it quicker because its warm. If you just leave it dim does it stay dim or if left long enough does it come back on.

[smalltownguy]

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

And...it went dim again after 10 minutes.

I'm getting very frustrated here.

I've already tried two different inverter boards, and the monitor acts the same way with both inverter boards.

I've already tried my LCD panel in a known working sister monitor, and it works just fine with a known working monitor.

I've tried the logic board from two different monitors, and no change in behavior.

I'm about to throw in the towel here.