Question about ViewSonic VA720 17" LCD Flat Panel Monitor

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Monitor on and off continuously

I can't get monitor to stay on signal. goes on - all of a sudden pc reboots and signal goes off - then on - then off - on and on and on. i am a beginner so make it an easy answer

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First power down your pc.. Then unplug your pc and your monitor..Wait 10 minutes then plug in and power up.. good Luck

Posted on Jun 30, 2008

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1 Answer

How to fix


tried to hooked up with other monitor just to ensure if the cause is your pc. if the monitor doesn't receive signal it will goes to stand by mode.

Sep 07, 2012 | HP W2207H 22-inch Widescreen LCD Monitor

1 Answer

My monitor works fine for weeks than suddenly just goes black! I turn it off and back on and it only stays on for about three seconds than goes black again! The power light stays on!


take off the monitor data cable from pc and try to turn monitor on if appears a smal square on the screen that mean your monitor is ok , and the black screen reason maybe data cable or vga card.

note : your monitor resolution is 1680x1050 some times wrong resolution cause like this problems

if you see that is helpful please don't forget to vote me
best regards

Apr 22, 2011 | Acer P221W LCD Monitor

1 Answer

When my monitor goes idle, I can't get it to come back on. I eventually have to shut it down and reboot. And then maybe it will come back on. Why...it didn't use to do that before:


I dont know the answer but i also got the same problem.. When i start my pc suddenly one flash will come in monitor and go. then i've to reboot my pc through switching off power and then on(Cause nothing in monitor i cant see anything for turn off or restart) then may be on 2nd or third reboot screen will come..

Dec 09, 2010 | ViewSonic VA712B 17" Flat Panel LCD...

1 Answer

The monitor will not turn on. When power button


First--was it working?
Did it suddenly stop?
When you see the LG logo, then it goes away, does the power light turn from green to amber? Sounds like that doesn't happen.
So--if you are getting a signal, you should see something.
If there is no signal, then the power light should change from green to orange.
With no lights at all, I suspect a faulty monitor.

Feb 22, 2010 | Computers & Internet

1 Answer

Screen comes on says Acer then No Signal, and goes out. if shut power off and then back on get same result.


This means the monitor believes it's not connected to the computer. Verify the cables first of all. Then try booting in safe mode (F8 key at PC startup) in order to verify that the PC is sending data to the proper video port (you might have a dual VGA / Digital output, for example, and the monitor might be connected to the wrong PC port). Quite often, a "bad signal" will be the same of "no signal"; and you can have a bad signal if the monitor resolution on the PC is set too high. This could happen if you installed a high-resolution capable monitor, and then replaced it with a not-completely-plug-and-play, lower resolution one. The PC would keep sending hi-res signals to a monitor which can neither interpret them, nor tell the PC "please slow down". To check this last possibility, reboot your computer while the monitor is ON. When PCs reboot, they usually drop back to standard VGA signaling, which all monitors understand. If the monitor abruptly comes to life and displays a boot screen, then goes No Signal again after several seconds, you've got a resolution issue; get in Safe Mode with F8 key at boot, and modify the screen properties (right-mouse button on the desktop, then Properties).

If everything else fails, try also connecting the monitor to another PC or laptop, to see if it works there.

Dec 04, 2009 | Acer AL2223W 22" LCD Monitor

2 Answers

All of a sudden my monitor has 'no signal'. I


The wire may be shot. Try purchasing a new connector wire.

Nov 27, 2009 | ViewSonic VA720 17" LCD Flat Panel Monitor

1 Answer

Monitor stopped working...checked all connections...light won't stay on green. bought a new monitor to replace it and that monitor says "no signal". is this a problem with the dell computer and not the...


Your monitor is going into power saving mode. When it receives no video signal from the computer, it will stay powered for a few seconds before giving up and presuming the PC is off hence why it stays green for a while, then goes orange.

The problem is with your PC not the monitor(s)

Jul 07, 2009 | Dell Computers & Internet

1 Answer

Monitor goes to sleep no input signal only 1 mo old


Normaly the monitor is not picking up the signal from the PC, it could be VGA cord is not connected, faulty, or the video card is faulty,or the monitor is not compatible to the PC. It could be one of my suggestions. Trouble shoot by connecting your monitor to another working PC and see what happens.If not the VGA cord is faulty and not picking up signal from the PC. Hope it helps.

Jan 21, 2009 | Computers & Internet

1 Answer

On Pwr up logo appears then LCD returns to stanby Black screen


I will assume the monitor is staying on during the boot process all the way until Windows loads.
If that is the case, then...
  • Start the computer
  • wait until the initial bios/logo screens for your motherboard go away.
  • Press F8 to get the Windows recovery boot menu
  • If you see the Windows Logo you would normally see then press rest and try again.
  • In the recovery screen, select SAFE MODE
  • Boot into Windows and uninstall your video card.
  • Reboot the computer the normal way through the start menu.
  • When your PC starts back up it should then reinstall the video card, and set itself automatically back to 60khz as default.
Let me know how you go =)

Jan 20, 2008 | BenQ FP71E 17" LCD Monitor

1 Answer

Monitor lives its own life ;) Turnes off and on in random moments


It sounds like there's a problem in the power supply or inverter section and it's just teetering on the edge of failure. The disruption of the signal is apparently just enough to kick it over the cliff until it's reset. Sooner or later, it'll need some help, like connections, capacitors, output transistors, capacitors, transformers. Those are the most common failures in these. I think you'll see it get worse

Jan 25, 2007 | Dell E173FP 17" LCD Monitor

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