Question about Dell UltraSharp 2405FPW 24" Flat Panel LCD Monitor

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Hello. I have a Dell 2405FPW that's having problems. When first turned on, I can see the backlight come on but no picture. The backlight goes off and on repeatedly every several seconds even though the controls and indicator lights seem to work correctly. After a while an image comes on and the menu is accessible, but the display continues to come and go. Even during the short periods you can see anything on the display, it's still corrupt a part of the time with either partially visible flickering image or a completely useless one. Doesn't matter which input I use. Any one experience a similar problem and know what needs fixing?? D.

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  • Dan Mitchell Jan 24, 2011

    Well, no one here bothered to help and I couldn't find my exact problem elsewhere. Guess I needed to offer a 'reward' to get help. Regardless, it was suggested elsewhere that I check the capacitors on the power board before messing with CCFL backlights (that I thought it might be). Sure enough a few 220uF and a couple 1000uF 25V caps were slightly bulged on the end(s). I went ahead and replaced them and it's starting right up again with no warm up needed. I'm adding this comment in case someone else come looking with the same problem. Good luck.

  • Dan Mitchell Jan 24, 2011

    Ooops. FFS, I have posted another problem with a Viewsonic 22". Unfortunately I added a comment on fixing the Viewsonic here under my Dell 24" problem. Don't see anyway to delete the comment so I'm just adding this as a correction. The Dell 24" still has no solution and it's caps don't appear swollen.
    The Viewsonic's problem was that the backlight wasn't coming on at first and needed to power it on and off multiple times before it finally lit up.

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Posted on Jan 02, 2017

  • 152 Answers

SOURCE: Dell 2405FPW - No Picture.

woliphint, Did you try Dell to see if they can do a swapout? You send them your's +$40-$90 and they send you a refurbished same model with new CCF tubes+power supply/inverter? A lot of LCD/FPD displays have been subject to having their SMPS's fail due to poor quality electrolytic filter capacitors that can't endure the thermal stress inside the display. Nearly all brands are affected, not just Dell. See what you get when you search web for 'swollen caps' or 'bad caps in lcd's' or 'lcd repairs' or 'monitor re-capping' or similar type of search. You should always state age or approximate usage hours of the monitor when posting to fixya. We don't know when a 2405FPW was produced and sold. As long as you haven't cracked, shattered, or abused the LCD panel you should be able to get it swapped and or repaired. I'm louie12fix on fixya or lmistyrel@aim.com
Bye for now.

Posted on May 06, 2009

  • 1 Answer

SOURCE: Dell 17" Monitor - Won't display anything, power light flashes

Buy a new one! Thats all I can say babe!

Ha! i was at school searching you online and found this!

<3 Netty

Posted on Jun 01, 2009

Sphynkter
  • 221 Answers

SOURCE: Dell E171FP Monitor goes black after 2 secs

Hi, I don't think the problem is with your monitor. Your monitor sounds like it's doing exactly what it's supposed to do. The monitor is supposed to turn off if there's no cable attached, which means there's no signal input. When the screen goes black, does the power light stay on and turn orange? or does it go off as well? I would recommend that you lower your screen resolution to 1280x1024 or lower in the Display Properties window, then remove your primary monitor, and connect the monitor to your desktop computer. You should see it light up when connected. The monitor auto-senses when there's a computer attached to the cable and when there's a signal. If it doesn't see a signal, it goes black to save power.

Posted on Jun 17, 2009

bill790
  • 23 Answers

SOURCE: Dell 2405FPW turns out but doesn't display

Your display is fried.

Posted on Nov 12, 2009

  • 1684 Answers

SOURCE: The backlight flickers when first started up.

Hello,

I would check the capacitors on the power supply board first. This is the most common problem with LCD monitor after a year or two of service. Open the back and look for bulging capacitors, replace any that you find and you should be back going again. Check our web site at: www.ccl-la.com/capacitors.htm for pictures and information about this common problem. If you need to get parts or have over questions let us know at tech@ccl-la.com.

I hope this helps, if so please rate our solution.

Buddy
Corporate Computer
www.ccl-la.com

Posted on Jan 16, 2010

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Try to use another power cable, or another power socket .
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woliphint, Did you try Dell to see if they can do a swapout? You send them your's +$40-$90 and they send you a refurbished same model with new CCF tubes+power supply/inverter? A lot of LCD/FPD displays have been subject to having their SMPS's fail due to poor quality electrolytic filter capacitors that can't endure the thermal stress inside the display. Nearly all brands are affected, not just Dell. See what you get when you search web for 'swollen caps' or 'bad caps in lcd's' or 'lcd repairs' or 'monitor re-capping' or similar type of search. You should always state age or approximate usage hours of the monitor when posting to fixya. We don't know when a 2405FPW was produced and sold. As long as you haven't cracked, shattered, or abused the LCD panel you should be able to get it swapped and or repaired. I'm louie12fix on fixya or lmistyrel@aim.com
Bye for now.

May 04, 2009 | Dell UltraSharp 2405FPW 24" Flat Panel LCD...

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Dell 2405FPW LCD Severe Flickring


The symptom you describe is typical of a thermal problem in the display. It might be in the LCD panel itself, in which case the only repair is to replace the display. It could also be in a component on the main board, and spray component cooler can be used to selectively chill parts to see if it has any effect. Even then, though, it's usually large-scale integrated circuits on these board that have go bad. Even if you can find a source for the part, changing it normally requires tools and techniques beyond almost every shop. Even the manufacturers "repair" these by simply replacing the entire board.

Sad to say, if this isn't covered by some kind of repair warranty, replacement might be your only option.

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Sounds like a Power Supply comcponent failure in the high voltage panel supply circuit.
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Can only suggest obtaining repair quotations vs. Replacement purchase?

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The logic board on the LCD panel itself goes out a lot on that unit. If you have everything but a picture then that is the problem. Rub your finger on the screen if you see light behind your finger but no picture then this is definently your problem. If there is no light then your inverter is the most likely problem. www.lcdrepair.us sells all parts for that unit.

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