Question about Mag Innovision 19" LCD Flat-Panel Monitor LT916S

1 Answer

Power is on but no picture!

Hi, I have a Mag innovision 900p (LT916s) 3 years old. I was on it yesterday and it suddenly went black without warning. I can't get it back, I've checked the cables/connections, restarted, etc etc. It still shows that it's getting power as the light on the monitor shows green just like normal...I've plugged in another monitor and it works fine so the computer/video is good I would guess. What could this be, did the monitor just **** out or can it be fixed????

Thanks

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  • kgaff76 Oct 07, 2008

    green light on but totally black screen, what is the problem?

  • timmysmythe Oct 09, 2008

    How do I do that, what's the cost, should I just buy a new screen?



    Thank you!

  • timmysmythe Oct 09, 2008

    How do I go about replacing the capacitor? I don't know anything about that...The monitor has a blue cable that hooks into the back of my dell tower and a power cord, that's it. Thanks so much.

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  • 293 Answers

Hi...there,
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!

Posted on Oct 08, 2008

  • Cj T
    Cj T Oct 09, 2008

    Hey..Tim,

    No...you don't need a new screen, just a new backlight inverter. You can buy a new one by called the manufacturer or try to repaired the inverter yourself only cost you about $10 bucks for a couple of capacitors. You've got nothing to lose...lot to gains... by the way, your monitor had a AC Adapter?

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Sounds like a silly question but have you checked the fuse? If it isn't that then it sounds like a problem with the power board. Check it for burn marks and bulging electrolytic capacitors (they're the little round tube like things that stick up), also check any fuses on the board. If it's the caps or a fuse then just replace them, if something else is burnt out then you'd have to replace the board but you might not be able to find a replacement since it's old.

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http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague

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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,
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2 Answers

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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!

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