Question about iiyama E431S-B 17" LCD Monitor

2 Answers

Iiyama E431S-B 17" LCD... Problem:

The led light comes on blue. and the screen will show a perfect picture for about 3 seconds, then goes blank, but if i pull the cable from the computer out and then back in it does the same again. Can you help?

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  • Anonymous Oct 27, 2008

    I've got exactly the same problem. I think I'm just going to go for a new one off eBay rather than go through the rigamarole of finding the parts. Unless someone has any idea where to get the power supply things from?

  • Gramler Mar 12, 2009

    mmm... I doubt it is the power supply. I have same behaviour, but have KVI switch... eveyr time I swithc between machines, display comes back..for abot 3 seconds then dispears. Also in Unix, if swtich between Deskptop and command line modes (ie forcing modes changes) it comes back.... I think it is related to the motnitirs ability to detec incoming signal. If no signal is detected it show a message "no signal" then blanks display after a few second.

    At the moment the problem is interremittent... repeated switch evertually makes it stay on.


  • Glenn Rogers
    Glenn Rogers May 11, 2010

    This happens while you are booting up? Do you hear a bios loaded beep?



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Posted on Oct 13, 2008

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  • 42 Answers

Power supply is defective, replace all secundary capacitors.

greetings Drikus

Posted on Oct 12, 2008

  • brexan Jun 01, 2011

    Replace capacitor C922 1000uf/16V on the power supply print.



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1) Go to Control Panel (Located on the start menu).
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4) You will see a section called Settings for x power scheme, the x depends on which power scheme is enabled.
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This should stop you monitor from powering off every 2 secs. If you need any further help just add a comment.

Please rate this solution by clicking the thumbs up at the top right of this solution. Your rating is much appreciated.

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Hi Sammy7!!

I have such iiyama AS4636D monitor. In this day purchase.
I have such problem with you.
My solution:
Desktop pc and lcd power off (230VAC or 110VAC)
Power on lcd, after early desktop pc.
This moment, when running the pc booting, press and hold you the " + " button.
In this moment come in one blue screen. May be running on the sreen short message: check or select input mode: VGA DVI 1 2 . Select your correct cable connection type.

Have a nice day! and happy new year!

Lajos from Hungary

Dec 13, 2008 | iiyama Pro Lite AS4636D (Black) 18.1 in....

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Probably the power supply is defective.
Most probably the electrolytic capacitors in the secundary circuit heve become bigger then they used to be.
Replace them all...

greetings Drikus

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There is probably a bad capacitor within the monitor that will not allow the picture to "hold" in the on configuration. This will need to be replaced. You can send it back to Phillips, or 17" monitors are pretty cheap these days. I would suggest a Samsung or BenQ. They both carry 3yr warranties.

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