Question about Envision EN-7220 17" Flat Panel LCD Monitor

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Monitror keeps cycling through on-off

When I boot up the PC the monitor turns on but then it clicks off automatically in a moment, then after a few seconds, turns on and off again. It keeps cycling through the on-off stages. When it turns on- i can see the Windows log on screen momentarily. so I know Windows is booting up correctly. (Windows XP) Once in a while (I have to try and switch it on-off several time from the main power switch) it stays on and works normally. But as soon as it is turned off again or the system reboots again it starts on-off cycles again. I have tried it on another pc with the same results. one if them has on board video, the other one has a video card. can someone help please? Same problem but, but my monitor is and en7220.

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Found one of these in the dumpster at my shop today. Had the "stays on for 3 sec then turns off" issue. Problem is the bad batch of electrolytic caps of a few years ago. 2 on the power supply board were visibly swelled up (470u/16V and a 1000u/16V). Replaced them both - it's fixed. Cost 50 cents.

Posted on Sep 05, 2008

  • vgreen20 Sep 05, 2008

    oops...I see in another thread that someone else has alredy posted how to fix this...sorry.


I think this is a problem of bad capacitors. I am having the same problem, but it never stays on, it just cycles on and off, only staying on for a split second, showing "ENVISION" in white. I might try to replace the capacitors if i can find the right ones.

Posted on Mar 17, 2008

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My suggestion is try to contact an expert technician of your monitor maybe it has loose contact inside.or before contacting anyone else try to boot your pc in safemood, if it runs smoothly then your monitor cannot support the screen resolution of your pc.

Posted on Feb 20, 2008

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SOURCE: Monitror keeps cycling through on-off

We have a number of CTX monitors with failing power boards dropping out the back light rendering it black or appearance it is dead. Given the number of them we have seen it would suggest there is a possible weakness in the design and replacement is the only option

Posted on Sep 29, 2008

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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

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Base on the information given to me.

I think your computer is on sleeping mode.

first thing check if the video cable is not loose connecting the pc.

because what would happend, if it is loos it would turn on and off at times.

The other thing you can do.

right click on the desktop.
go to properties
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adjust the time you want your monitor to shut off.

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Monitror keeps cycling through on-off

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