Question about Dell UltraSharp 1800FP 18.1" LCD Flat Panel Monitor

1 Answer

My dell ultrasharp 1800fp monitor keeps flashing on and off, its not a power problem as the power button stays on and when i disconnect the the monitor cable from my pc the no signal message stays on the screen fine. it used tostay on on if left for about 10 mins. now it just blinks constant. any help on this would be great

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  • 5 more comments 
  • 1337runner Sep 13, 2008

    Build date August 2003 Same problem, noticed that when it flashes on intermittently, it displays 2-3 different resolutions. Tried analog and digital inputs. same problem. I suspect it is the board that the inputs connect to.

  • Anonymous Oct 01, 2008

    I've got the same exact problem and I'm going to try replacing the inverter board with one off of eBay. I do have another 1800FP that actually needed power supply board replaced and that fixed the problem with it. This one is different though. I'll let you know if the inverter board fixes this one.

  • Lori Edwards
    Lori Edwards Oct 22, 2008

    Mine does fine through the boot up then when gets to the XP login screen, the image gets distorted and the screen begins to flash at different intervals. When booted up in safe mode there is no distortion & no flashing, only when booted up in normal mode does this happen... is this a monitor problem or could it be something else?

  • Anonymous Nov 20, 2008

    Im calling Dell again & making them take it back !!!! Its only like 5 months old!


  • llbandit Feb 02, 2009

    My Dell 1800FP is flashing on and off, power cord. I tried another monitor on that pc, and it works fine. So I am not sure what I can do to fix this monitor?
    Any Ideas?


  • Johnny Morris May 11, 2010

    My dell 1800fp keep flashing what is the problem!

  • eric rust Sep 22, 2012

    I have one with same issue, tried replacing pwm controller but it did not help.

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  • Master
  • 558 Answers

Inside there is a IC chip on the power pack that goes bad, replacement is called for also look for bad capacitors when you are inside looking around, those need to be replaced as well
hope this clears things up. dells third party who built these units did a rotten job on this model. that chip always fails.

Posted on Apr 05, 2009

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http://www.lcdrepair.us/1800fp-power.html

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