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Monitor goes black but green light still on.

A week ago my monitor ( Mag Innovision LT916s ) was working fine. Then one morning when I booted up, the monitor went black, like it went into sleep mode. the light was still green though. When I turn the monitor off and then back on it works for about 2 or 3 seconds then goes black again. If I keep tirning it off and on it will sooner or later stay on.
Any Idea's?


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Re: Monitor goes black but green light still on.

The problem with the Mag lt916s is that it is made with cheap capacitors. If you are interesnted it is a cheap and easy fix. Open it up, which is the hardest part. And replace the six 470uf 105 degree 25v capacitors and maybe even the smaller 220uf one next to them. You will see a bump on the top of bad capacitors most of the time. There are some videos to watch on Youtube showing you how to make the repair.
Good luck

Posted on Mar 30, 2008

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Re: Monitor goes black but green light still on.

Check the CFL Inverter im having this problem with a Samsung 192mp and this is the feedback Im hearing.. its about a 50$ part give or take...

Posted on Jan 24, 2008

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When I turn monitor on, it stays on only 2 seconds, then goes dark. When I turn the monitor on, it lights for another two seconds, then goes dark. It is a MAG Innovision TCO 03 display. Thank you!

It could be two things. 1). The video card is set to a resolution the monitor does not support. 2). The monitor's power supply is bad. You can try to boot into rescue (or "safe") mode, and adjust the video card to a resolution the monitor supports. OR, power supplies usually go bad because capacitors bulge or otherwise go bad. Most monitor power supplies are hard to get, so people typically repair them. If you disassemble the monitor shell, you can see the power supply (where the AC cord goes). You can look at the metallic, cylindrical looking things with minus signs down one side, and if they look bulged on top, you can replace them. You can get replacements at

Mar 30, 2013 | Mag Innovision 19" LCD Flat-Panel Monitor...

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I have a mag lt 2219 and everytine I turn it on it goes black

moz-screenshot.jpgHello Chris,

You have a monitor with a common problem. After a few years some LCD monitors will blown a power supply. The problem is caused by parts called capacitors overheating in the confined space of he monitor. If you are good at electronics repair/soldering you can usually fix he problem. Check out a few pictures on my web site You can take the back cover off your monitor and look for the bad parts, replace any that look like the pictues and your monitor should work fine. If you don't want to try the repair yourself we offer a repair service for $35 plus shipping. I hope this helps, iff so please rate my solution.

Corporate Computer
Over 21 years of computer and printer support/repair

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INstall the correct Video graphic card driver. The driver CD must have been shipped with the Monitor. Just put that CD in, and follow the on screen instructions.

Mar 27, 2009 | Mag Innovision 19" LCD Flat-Panel Monitor...

1 Answer

Black screen

It is most likely that the filter capacitors on the power inverter board have failed. I took mine apart and found seven swollen capacitors on the this board, they fail prematurely and seem to be the only thing wrong with the unit. I replaced them and now it is working just fine.

six 470uf 25v electrolytic capacitors and one 220uf 25v Capacitor.

you should not attempt to repair this yourself unless you have some electronics training since there is a shock hazzard involved and also these capacitors will blow apart if they are installed incorrectly (very messy experience).

Jan 31, 2009 | Mag Innovision 19" LCD Flat-Panel Monitor...

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Power is on but no picture!

It's seems you guys had a bad lucks! Your backlight inverter are busted. Need to replaced a new inverter...Guys! Have a nice day!

Sep 27, 2008 | Mag Innovision 19" LCD Flat-Panel Monitor...

1 Answer

LCD MAG Innovision LT916s blak out

Are you sure you installed to the right side...There (-) side too you know! Also, testing the blue buttons alike caps too....

Jul 15, 2008 | Mag Innovision 19" LCD Flat-Panel Monitor...

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It's seems you need to replaced a new backlight inverter. Check this site out...@
maybe have what you needed... Have a nice day!

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1. Check the cable connection to your PC. It might be disconnected.
2. If your have more then one cable input on your LCD monitor(VGA or DVI) check if you selected correct input; digital for DVI or analog for VGA.

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Jun 07, 2008 | Mag Innovision 19" LCD Flat-Panel Monitor...

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MAG Innovision LT916S monitor problem

Hi this is the way how to examine what's wrong with your monitors. After you turned it on and the screen went black, you have to check that if you can see the image on the screen or not by shining a flashlight into the screen, not directly but find the best angle to the screen and take a look very closely. If you can see the icons or any image, there will be a minor problem. This is because of the lamps inside screen. Some of them were broken and it is very easy to replace. If you cannot see anything on the screen, there'll be some problems with inverter board. If you have soldering tool and want to fix it by yourself, check the caps first. It may cause this problem. Some caps might show leaking or burn spot on the board because of too high temp. If you don't have soldering tool, you better go get a technician to do so. Hope this help!! If anything I can help you with, feel free to let me know.
Thank you,

Mar 07, 2008 | Mag Innovision 19" LCD Flat-Panel Monitor...

1 Answer


Sounds like an inverter problem. If the power supply is internal replace the capacitors coming out of the voltage regulators. These are usually 1000mf and/or 470mf. If that doesn't do the trick look up the numbers on the 8-pin chips that drive the secondary transformers on the inverter to see if they are getting the right voltages.
Good Luck!

Feb 12, 2008 | Mag Innovision 19" LCD Flat-Panel Monitor...

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