Question about ViewSonic VX922 19" Monitor Flat Panel

6 Answers

LCD Screen blinks on & Off at start up up-to about 10 minutes

I have a Gericom 19'' flat panel LCD monitor. When I first start the computer the screen and led light keeps blinking, also picture comes on and off. I did try it on other computer same result. After about 10 minute I get the picture on the screen. Also sometime after 2 or 3 reboots everything is normal until I shut off the computer. May be after about an hour if i try to restart the computer same problem however it takes less time perhaps 2 or 3 minutes for the screen to be normal.
I have read a lot of post mentioning Capacitors, looking at PCU I can not seen any blown capacitor. I did notice some brown stuff on a round coil like (about 1cm round copper wired, says 125° on it) object.
There are about 20 odd capacitors on PCU, i have no idea which ones needs replacing.

I would be grateful for any help?

HPI have a similar problem but only when I connect my Viewsonic VX910 LCD display to my new computer running Vista Ultimate 64 bit. When I connect it to my old XP machine, it works fine. Right now, the only way to stop the blinking is if I

1. Wait it out, OR
2. Reboot, OR
3. Click on my account once Vista boots up (which is hard to do since the monitor is blinking).

What's the problem? My new graphics card is a 1GB ATI Radeon HD 4850

Posted by on

  • 7 more comments 
  • mrmanfam May 22, 2009

    For some reason, MY problem was added to the first problem.

    MY problem is the one that begins
    "I have a similar problem but only when I connect..."



  • mrmanfam May 22, 2009

    Please note that MY problem is the SECOND ONE. For some reason it merged with someone else's!

  • mrmanfam May 22, 2009

    I don't have another monitor. If it were a graphics card problem, would it only manifest itself as the problem described, i.e., blinking upon initial boot up of the monitor?

  • mrmanfam May 22, 2009

    Why can't it be a driver problem?

  • mrmanfam May 22, 2009

    Like I said, when I connect the monitor to my XP machine, it works fine.

  • mrmanfam May 22, 2009

    Yes!

  • mrmanfam May 22, 2009

    Tried that to no avail.

    I'm going to update the graphics card driver and see if that works.


  • mrmanfam May 25, 2009

    1. The video cord is fine. The monitor was hardly used before my old desktop broke down and I bought a laptop. At that point, the monitor wasn't used at all.

    2. The video card would not be the problem since the monitor is behaving the same way in two different computers (running two different operating systems).

    3. For the same reason, the drivers are not the problem. The old machine has the old drivers.

    4. The monitor is NOT malfunctioning! It is SOLELY at the FIRST power-on of the day that I have the problem with the monitor blinking as if some internal part needs to warm up. I'm no electrical engineer but it seems to me like THOSE symptoms should point to a specific cause and resolution.


  • mrmanfam May 25, 2009

    Also please note that I have changed one of the symptoms. The problem DID follow the monitor around. When I connected the monitor to my old, XP computer first thing in the morning, it showed the same problem.

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6 Answers

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  • Master
  • 1,959 Answers

Okay, forgive me if I go over covered ground but reading the post, I only see your responses, not what was recommended. From everything I've seen the problem lies in one of the following areas.

  1. The video cord is damaged. A bad cord will occasionally work since some current does flow to the machine but not enough to work all the time Check for any bent pins on the cord. If there are any bent pins, a new cord should solve your problem.
  2. If the graphics driver has recently been updated, it's possible that the monitor can't handle the accelerated graphics. Most graphics drivers updates are tweaks that increase the performance of the graphics card. Although your computer and graphics card may be able to handle the enhancements, it's very possible your monitor can't. If this is the case, try restoring your old graphics drivers..
  3. The video/graphics card is loose or poorly seated. This would explain why sometimes the montior works fine and other times it won't work at all. If you have onboard graphics built into the motherboard, this would not apply
  4. Lastly, if none of the other solutions work: Since you are experiencing the same result on different computers, the problem lies with your monitor. A bad monitor will occasionally work until one day it quits altogether
I do hope this covers all the possibilities and answers your monitor question. Again I apologize for going over any covered ground but somehow someone latched onto your post and I had to filter out your problem from the other person's. Best of luck.
Greg

Posted on May 23, 2009

  • Greg Margossian
    Greg Margossian May 25, 2009

    I understand how frustrating this is. Again I had to decipher which post was yours and which was mixed in with yours. Not knowing what video card/drivers you are running with the 2 machines you've tried, it's very possible that the refresh rate is more than your monitor can handle. I'd set it at the default. If that's not the case, then the last part of my solution is most likely the cause of the problem. The monitor is on its way out. Not knowing how old it is or how it was stored while it was not in use, it's very possible that it will take longer and longer each time you fire it up until one day it won't come up at all.



    Probably not the answer you wanted but it appears all other possibilities have been exhausted.

    Keep in mind, not everything can be fixed and the solutions we provide may not be the ones you want to hear but its a solution all the same. I'd keep your monitor on and use it until it finally quits. Thank you for the opportunity to diagnose your problem and to my best to solve it. Best of luck to you in the future.



    Greg

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  • Master
  • 1,383 Answers

U have to reinstall graphicv driver also check vista is upgraded to sp2
aslo install graphic driver let me know

Posted on May 23, 2009

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  • Master
  • 749 Answers

Is your problem the bottom one?

Posted on May 22, 2009

  • Muzzammil Ishfaq
    Muzzammil Ishfaq May 22, 2009

    what you need to do is reinstall the drivers that came with the monitor or boot vista, on the desktop left hand click and go on personalize, display settings, then under colors: go on medium 16bit, then go on advanced, find monitor tab and under it find the smallest Hertz your monitor will work on.

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  • Master
  • 3,614 Answers

Hi there,

Better to test the monitor on a different PC, you have to check if the monitor has the problem.

Two Possible problem this would be.

  • a faulty monitor
  • or a faulty videocard on your computer.

BTW,..how the warranty?

Posted on May 22, 2009

  • micromaster
    micromaster May 22, 2009

    okay. i got it this can be a video card problem, do change the installed vcard on your unit.

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  • Master
  • 495 Answers

First I would hook up another monitor to your computer just to insure that it is not a PC problem. Then if this is a flat panel - they seem to be prone to capacitor problems on the power board. If you are good at soldering you can take it apart and look for swelled or leaking capacitors and replace them.

Posted on May 22, 2009

  • Manoj Rout
    Manoj Rout May 22, 2009

    It's a problem with a power board or inverter inside. This can be
    repaired. If your monitors are no longer
    under warranty, you'll have to pay for it yourself. Ring Viewsonic in
    your area and ask for your nearest repair shop.

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  • Master
  • 3,917 Answers

Hi,

It's seems you got a busted backlight inverter... Need to replaced a new one or repaired it.Try replacing the large electrolytic capacitors on the power supply board (should be 4-6 capacitors for 5 and 12v rails). This works in most cases.

Thank You

Posted on May 22, 2009

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