Question about Computer Monitors

2 Answers

Liquid Video monitor goes black after 30 seconds

I have a Liquid Video E19LCD1 monitor that has worked fine for about 3 years. Now when I turn it on, it shows the desktop for about 30 sec. and then goes black. Turning it off and on, or unplugging and replugging the video cable gives exactly the same behavior (30 sec. picture, then black). Computer works fine with an old CRT monitor and the LCD monitor behaves exactly the same on a different computer. Monitor power light stays green once turned on. I removed the back of the monitor and looked for any evidence of damage or swelling of capacitors etc. but see nothing unusual. Any suggestions would be greatly appreciated!

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

I acquired one of these at a flea market. Same problem, same solution as skotkolr's. The "runs for 30 seconds" or cycles on and off is caused by the run capacitor for the switching power supply controller IC. It's usually 47uF/25V and can be found on the AC hot side of the pc board near the controller IC. This fix works for many monitors.

Posted on May 05, 2010

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 558 Answers

Capacitors on the power board inside the lcd monitor have blown they can be replaced with new ones and the monitor should return to normal operation.
service center or if you feel capable you can do it your self with a soldering iron and the correct caps that have blown you need voltage and micro faradays usually 25 v at 470 mfd (u)however monitors use different kinds and voltages can be different it will be marked on the side of the damaged capacitors.
l8r

Posted on Nov 13, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Monitor receiving signal, but no image


Hello!

I see many monitor with that trouble.
When you turn on comp., you can have a picture on monitor about 10-30 min. and that go in black screen, or If you change resolution again go in black screen.
You must repair monitor or bay another.

Nov 02, 2009 | Acer AL2416W Monitor

1 Answer

Screen goes black, power still on


The fault sounds like a invert problem, the inverter supplies high voltage to the CCFL lamp which provides the backlight. If you see a dim image when you look at the LCD screen at a sharp angle then this confirms this diagnostics.
For parts, service and DIY info I have use LCD Parts - click on this link to their WEB site :-
www.lcdparts.net

Sep 21, 2009 | Liquid Video A170E101 Monitor

1 Answer

MY screen will stay on for 30 seconds, then goes black.


you Screen has a Soildation problem take it to near by electrition he will resolidate your screen and it will then work fine..

Aug 27, 2009 | Proview PL 566s 15" Flat Panel LCD Monitor

3 Answers

Screen goes black, but power light is on (not blinking)


The problem is not with your screen. Its the problem of Video Card of your system which is unable to send Video Signals to the Screen.

Apr 23, 2009 | Daewoo L700C 17" Flat Panel LCD Monitor

1 Answer

Monitor goes black for a few seconds


Try swapping the monitor cable from the working monitor to the other video connection on your computer. Effectively reversing the connections to isolate whether your problem is the video card in your computer or the monitor itself. If you find the working monitor displaying similar symptoms, then check your video drivers and ensure that you have all power saving features, screen savers, etc... turned off.

Apr 06, 2009 | Rosewill R900J 19" Flat Panel LCD Monitor

1 Answer

X191w blank screen after 2 seconds


Just got off the phone with Acer Suppport. This was after I sent an email to them, that suggested that I call. 8-/ annoying. So the guy on the phone says there is one thing that we can do before sending it in. Unplug it completely for the wall and computer. Hold the on/off button in for 30 secs. reconnect power and the computer. It worked for me

Oct 07, 2008 | Acer X191WSD Monitor

1 Answer

Monitor goes blank less than a second after turning on.


I start my computer and turn it on, and everything looks fine for about 1/4 of a second and then it goes black while leaving the power light green. I can only see the screen again after turning it off and on, but that's only for another 1/4 second. What's up?
I got my rosewill flatscreen as a hand me down from my father. I've had it for several years now. Was working fine until a month ago. When I turn the computer on the screen goes black after 1/4 of a saecond. I have to turn it off and on anywhere from 10 to 20 times before it stays on. I have checked all plugs to the computer and outlets. I have absolutely no idea whats causing this.

Dec 28, 2007 | Rosewill R700J 17" Flat Panel LCD Monitor

3 Answers

Screen goes black after a few minutes, switching off and on and picture returns then goes black again


Hi,

I have problem with my monitor, it is automatically switching off and switching on for 2 to 3 minutes for every 15 minutes why ?

Please mail me the solution to craju1@yahoo.com





Oct 21, 2007 | Relisys RLT1720 17" LCD Monitor

1 Answer

Can see screen for one second


I had mine for almost 3 years and last month ran into the same problem and i take good care of it. I turn it on it stays on for a 1-3 sec and goes black. can't figure out what it is

Apr 19, 2007 | Liquid Video L17LCD2 17" Flat Panel LCD...

Not finding what you are looking for?
Computer Monitors Logo

Related Topics:

651 people viewed this question

Ask a Question

Usually answered in minutes!

Top Computer Monitors Experts

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18297 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

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

Answer questions

Manuals & User Guides

Loading...