Question about ViewSonic VA720 17" LCD Flat Panel Monitor

1 Answer

Powers on/off quickly

I bought this monitor at a swap meet for $25... naturally I'm skeptical about their warrantees. Alas, the thing doesn't work. The green LED comes on, and automatically powers on, then the picture warms up and displays a beautiful picture for about half a second, then turns off again immediately and restarts the process. I thought the power button might be stuck, but it doesn't seem to be a mechanical issue. Should I throw this junk away and cut my losses, or is it salvagable? Thanks!

Posted by on

  • MCR1 Sep 24, 2007

    Thank you for your time! I'll give it a look...



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 6,966 Answers

Hi, I am of the opinion that the LCD is reasonably repairable. It would seem that something needs repair/replacement in the inverter section of the LCD. This is where the power to the backlight comes from. More often than not, the defective components are capacitor(s) that have lost its capacity to hold a charge, burst, swollen or lost its oil film separator. They are relatively inexpensive and should be be easy to replace. In some cases, it may just be a component cold solder which would require re-heating; connection that heats up because they are loose or at worst a CCFLamp that is at the end of its life. hope this be of some help/idea. Pls post back how things are or should you need further information. Good luck and kind regards.

Posted on Sep 23, 2007


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Apple Cinema 30 display powers on but nothing on a screen. Hi, Monitor powers on but nothing on a screen. Can anybody tell me what is caused the problem? Could this issue is caused by the...

Try to shine aflashlight on the screen and seeif you see an image. I have a Apple cinema HD 30 (A1083). I have no power. I checked the
power supply and it is good. I bought a main board from ebay. I still had the
same problem so I returned it (minus a 15% restocking fee). I read somewhere
that you have to have the usb cables plugged into the computer for it to work.
Is this true? If so I may have returned the part I needed to make this monitor
work. (just my luck) I bought this monitor for $25 used off craigslist. I am
really excited to get this working. I have heard great things about how
fantastic the dispay is. I am ready to do some gaming on it. I am an electronic
technician but not so familar with this apple monitor. I figured I would turn
to this forum to learn from some apple experts out there. Any imput would be
wonderful in troubleshooting my problem.



Oct 11, 2012 | Apple Cinema HD 30" LCD Monitor

1 Answer

Windows xp sleep suspend hibernate

make sure the cables have not come loose, then turn the monitor off then back on, if that doesn't work is where the fun starts. boot up to safe mode with networking. If that loads up and the screen is still black then either your monitor or video card need replaced. Hook up a different monitor if that works it is naturally your monitor, if not then it is your video card. Unless you are into high end graphics design, gaming, or hooking up to a flat screen tv, they are not too too expensive and can be swapped out in a matter of minutes

Aug 25, 2012 | IBM ThinkCentre M51 PC Desktop

1 Answer

MSI mobo powers up, but no signal to monitor.

i hate to tell you this but it seems your pci or in your case agp exp.slot is most likely melfunctioning if your card works on another computer then that may be your problem one thing you can try is take the mobo out and let it sit for a few days or call msi them selves and they may replace it for you for free they are good about that i have the k8n neo4 with a 7950 1g pci.e with same problem and thats my pci e not working

Mar 15, 2010 | MSI K8N Neo4-F Motherboard

1 Answer

Powers up but then shuts off

Could be one of two things: The power supply for the monitor has a loose connection and as soon as it starts heating up the connection is open. Or your video card could be going bad. I'd bet on the former, though.
Why not try swapping out the monitor for one from a friend and see if the problem persists?
If it does, either get the monitor fixed or replace it.

Dec 13, 2009 | Balance CM2015 15" LCD Monitor

1 Answer

Computer powers up I hear it booting up but monitor stays black screen. can't get the monitor menu or anything.

The first thing to make sure of it that it is not the monitor, do this by installing the monitor on another pc or swapping monitors with another one. If it works then move on to the most likely solution, a bad power supply. A bad power supply can have enough left in it to power up fans and drives.

Oct 13, 2009 | Computers & Internet

1 Answer

Need help with projector. can't get it to work, but I know it's me. Now, I can't get my remote monitor to work. I may have pushed the wrong button. I have an HP Elitebook 8350 and the new projector is...

There will be a function key that allows you to swap what monitor the display comes up on. On my HP its the blue (fn) function key with f4. This should swap display between laptop monitor and external or show up on both.
Other things to check are that the projector is powered on and plugged in before the laptop powers up.
Also check resolution of laptop display it may not be compatible with the projector.

Mar 19, 2009 | HP 8710w Mobile Notebook

10 Answers

Blank screen

This problem is very often caused by dry electrolytic capacitors on the inverter board. If you have some skill with soldering you could try to change them. When buying new ones ask for LOW-ESR capacitors for switching mode power supplies (SMPS) and 105°C, they are a little bit more expensive than normal electrolytic capacitors, but are designed for this aplications so they lasts more. Normal el. caps will also works fine so when you cannot buy LOW-ESR for SMPS use normal ones.

May 14, 2006 | Dell E172FP 17" LCD Flat Panel Monitor

Not finding what you are looking for?
ViewSonic VA720 17" LCD Flat Panel Monitor Logo

54 people viewed this question

Ask a Question

Usually answered in minutes!

Top ViewSonic Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18419 Answers

Cindy Wells

Level 3 Expert

5299 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Are you a ViewSonic Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides