Question about Mag Innovision InnoVision LT 765S 17" Flat Panel LCD Monitor

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Mag LT916s brghtness, contrst, phase off,, monitor stays on!

At first the monitor only stayed on for 30 minutes or so. Then I turned the brightness, contrast, and phase all to zero and the monitor has stayed on. however, it now goes through cycles of going dim for several minutes then perfect clearity for several minutes. I got it for free just in case your wondering. So after reading the net info, is it "backlight", "bad caps", inverter or feedback circuitry?

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Sounds like bad caps in the inverter circuit affecting the ccfls.

Posted on Jan 05, 2010

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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 mouser.com.

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

1 Answer

Screen stays balck


if the power indicator is on will mean either a fault with the back lights or the inverter circuit that controls them will need to be checked by tech

Jan 05, 2010 | Mag Innovision 19" LCD Flat-Panel Monitor...

1 Answer

How come the monitor just flashed and take like 45 minutes before it will turn on?


you have a power supply problem you will need to open the case and look for hot spots on the pcbs or blown capacitors

Oct 11, 2009 | Mag Innovision 19" LCD Flat-Panel Monitor...

1 Answer

My monitor is taking a really long time to turn on


The problem is with your Harddisk. Try removing and reconnecting it again. Run the scan disk utility.

Jun 19, 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...

2 Answers

MAGinnovation LT916s


Hi...there,
It's seems you need to replaced a new backlight inverter. Check this site out...@ www.3rd-rocks.com
maybe have what you needed... Have a nice day!

Jul 08, 2008 | Mag Innovision 19" LCD Flat-Panel Monitor...

2 Answers

Monitor black screen


Your first step in troubleshooting this problem is to plug in another monitor to your computer. If you are having the same problem it is related to your computer. If the second monitor works fine then your original monitor is shot.

May 11, 2008 | Mag Innovision LT776s 17" LCD Monitor

1 Answer

19" Mag Monitor turns 0ff by itself


Hi...there,
All you guys need a new backlight inverter... Your old inverter are busted!

Apr 16, 2008 | Mag Innovision 19" LCD Flat-Panel Monitor...

1 Answer

MONITOR MAG LT916S


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...

2 Answers

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

Dec 27, 2007 | Computers & Internet

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