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

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Monitor blacks out after length of use

I have a Mag Innovision LT916s 19" monitor. Is only about 1.5 years old. When you first turn it on it displays fine, but after a while the screen will go black. Turn it off then turn it back on will display for about a second and goes black again. Leave it off for a while then it will work again. Does it sound like is overheating somewhere? is there a loose wire? I plug it in to another computer, same thing, so is not the computer. I cant use another monitor cable because it comes in a non detachable cable. Any help is appreciated. Warranty has expired and I am ready to open it up !!! Help

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  • Anonymous Mar 08, 2008

    my screen gose black sometime and I have to turn it off and on and it will comes back

  • genekeats Apr 01, 2008

    Monitor comes on, we see an image and it immediately begins to fade from the center out until completely dark.  The PC remains running, we can power cycle the monitor several times, and the image fades from the center out to total black, each time a little more quickly.


    After a few minutes of receiving a signal from the PC, we will shut down the PC; this is followed by a "NO SIGNAL" notice on the monitor (i.e. the monitor is still functional).  We restart the PC and the monitor now works normally.

  • rosrosanna Apr 05, 2008

    my screen goes black after a length of time too.can you help me with this problem?

  • Brcue and Betty Johnson

    I have somewhat the same problem. My screen is going out on my monitor the new style plug DVI-Digital (DVI-D) ok. So i put my old crappy monitor with the old style conector SXGA Monitor Cable . My comp. has both plugs in the back of the tower. Ok so now my old crappy monitor stays on and the nice 1 and 1/2 year old monitor blacks out. I have a cape. to have dual monitors. So i am working on both monitors and i watch my extended desk top go out. Black out. but i am still up on my old crappy one. So is it my monitor or the graphics card with the new kind of conection that is bad?

  • dennette805 Dec 05, 2008

    the exact same thing is happening with mine.

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Fabulous. I replaced those 6 capacitors and voila my MAG LCD is now working again! I did notice after I had purchased the capacitors and opened everything up there was another capacitor near the other 6 that was slightly bulging on top. Dang it, I would have bought one of those and replaced it also if I noticed it before buying the other capacitors. It is easy enough to open it all up again, and living in Atlanta know of a local shop that supplies capacitors. Let me give them a plug ACK Electronics - acksupply.com They also carried the exact replacement capacitor also - 470uf 25v 105 degrees - 78cents a piece.

Posted on Jul 19, 2008

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You guys should all make sure you get the polarity of the capacitors correct when you replace them.

There is usually a black strip down one side of the capacitor, and a corresponding mark on the board where they mount.

Some times there will be a + to one side, this goes away from the strip on the capacitor.

If you get the polarity wrong, you could get some pretty strange results. You may "pop" the capacitor again.

Posted on Mar 27, 2008

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I follow the instructions and replace the capacitors with the same rating. However, the monitor still refuses to display.
I don't have experience in repairing electronics, so i ask my friend who repairs electronics for many years to take a look.
He said one of the inverter transformers is dead. I think he is quite good, since he shows me the oscilloscope waveform of the bad transformer.

Does anyone know where i can buy the inverter transformer?

Posted on Feb 17, 2008

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FYI: for those who are going to try this with the 700P model 782s... the front bezel comes out a little different. I tried to use the above method and accidentally popped the little plastic tab out of the bottom right side (not a big deal because the fit is still tight but I don't want you to have to go through the same thing). Here is what you do:
Find the two screws on the bottom back side of the monitor. Unscrew these and put in a safe place for reinstallation. Now with firm pressure push up on the grey metallic-colored front plastic. You might have to gently press the grey plastic front into the monitor while pressing up if the front does not seem to move but believe me it will go up. I did not have to wiggle it back and forth... just apply a constant gentle upward pressure on the front face. It will go up to unlock the plastic tabs on the side of the monitor. It will go up about 1/8 to 1/4 inches. You can just take it off the monitor by lightly pulling it away from the monitor. Do not use a screwdriver to separate the front from the base because you will break all of the grooved tabs and the plastic will not stay in place unless you permanently tape it or glue it.

Posted on Jan 17, 2008

Waste of time. I did change all the capacitors and working alright. But turned off monitor at night and in the morning same problem. Waste monitor

Posted on Nov 13, 2007

Thanks BNUTZBCRAZY I also have a LT916S same fade to black problem. Replaced the 6, 470uf, 35V capacitors (Radio Shack #270-1030) as you suggested, still very early to tell, mine was a intermitent problem, but everything seems to be working fine. Thank you.

Posted on Sep 16, 2007

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How to open the case?

Posted on Aug 28, 2007

  • morlevya Aug 28, 2007

    this work I thank you all for giving me the hope to do it I fix it today thanks for the advise I gave both of you good rateing esey fix total coset 29 for sowder station sowder cord and 7 cap total of 35$ to see it working pricless for any thing else there is master card. thanks

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OK PEOPLE I GOT THE SOLUTION TO THE MAG INNOVISION LT916S GOING BLACK AFTER ANY LENGTH OF TIME BEING ON!!! I JUST REPAIRED MINE TODAY! THE PROBLEM IS THE CAPACITOR BANK IN THE POWER SUPPLY PART THERE ARE 6 CAPACITORS I HAD A FEW LEAKY ONES "NOT GOOD" THE CAPACITOR SPECS ARE AS FOLLOWS 470UF 25V 105 DEGREES C MEANING 470 MICRO FARAD/25 VOLTS I HAD A VERY HARD TIME FINDING THE 25 VOLT ONES SO I WENT WITH 470UF/35V 85 DEGREES C THEY MIGHT NOT LAST AS LONG AS THE OTHERS DUE TO THE TEMP RATING HOWEVER, IM THINKING SINCE THEY CAN HANDLE UP TO 35 VOLTS IT SHOULD EVEN OUT AND HEY, ITS WORKING SO FAR SO GOOD!! THE CAPACITORS ARE FROM UNDER A DOLLAR A PIECE TO A COUPLE BUCKS EACH. THE CAPACITORS HAVE A BOLD LINE RUNNING UP ON ONE SIDE INDICATING THE POLARITY. BOLD LINE SIDE IS "-" SIDE WITHOUT BOLD LINE ITS "+" THE POWER SUPPLY BOARD HAS THE POLARITYS STAMPED ON THE BOARD ITSELF UNDER EACH CAPACITOR. EASY 30 MINUTE FIX IF YOU ARE LEARY ABOUT SOILDERING, FIND A FRIEND THAT KNOWS HOW TO. ITS REALLY NOT THAT HARD THOUGH AND YOULL HAVE SOME DECENT ROOM TO WORK WITH. I PROMISE WHEN YOU OPEN IT UP YOU WILL ALMOST CERTAINLY SEE AT LEAST 4 OF THE 6 CAPACITORS BULDGING AT THE TOPS MAYBE EVEN LEAKING BROWNISH STUFF. DO YOURSELF A FAVOR THOUGH AND REPLACE ALL OF THEM WHILE YOUR IN THERE "THE SIX BIGGER ONES ONLY" IF ANY OF YOU NEED FURTHER HELP OR ANY OTHER QUESTIONS ABOUT THIS PROJECT PLEASE FEEL FREE TO EMAIL ME AT BTLEE26@HOTMAIL I DAMN NEAR WENT CRAZY TRYING TO FIND A SOLUTION ON HOW TO FIX THIS THING SINCE I SPENT OVER 300 BUCKS FOR IT NEW. AND IM BY NO MEANS A EXPERT WHEN IT COMES TO THIS STUFF BUT I DO KNOW A FEW THINGS. AS IM SURE MOST OF YOU DO. TAKE CARE YOU ALL AND THANKS TO THE GY WHO MENTIONED SOMETHING ABOUT CAPACITORS BEING BAD IN HIS!

Posted on Aug 21, 2007

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  • Bryan Lee
    Bryan Lee Sep 04, 2007

    update: my montior is still working like new after replacing the capacitors. your welcome morlevya, im very pleased it worked for you. it kinda hurts your feelings when you pay good money for something and it doesnt last very long. ive been fixing my own stuff for years now cause my family was always kinda poor, and when something broke i would either fix it, or destroy it trying to fix it. thats how you learn i guess. i figured i didnt have the money to pour into repairs. so i really had nothing to lose. ive gotten some really cool electronics from people that gave them to me because they quit working. stereos, computers etc. it seems like these industrys want people to think its too hard to repair things yourself. one guy wrote me and said a repair shop wanted a minimum charge of 49 dollars just to soilder the new capacitors and 12 dollars for the capacitors themselves. what a rip off huh?! some things might need a pro to fix it but i tell you all, if the only other option is to throw it away, you got nothing to lose. open that sucker up and at least give it a good visual inspection. if something is melted, smells funny,leaking etc. replace it! electrical componets are relativly cheap. just put it back on the exact same way it came off. if your unfamilar with soildering, grab that broken vcr or junk electronic thingy and practice unsoildering and soildering things back into place. and for gods sake make sure its unplugged so you dont get zapped. unless your into that sort of thing. take care all! and i wish you luck!!

    Bryan Lee

  • Bryan Lee
    Bryan Lee Sep 04, 2007

    oh and thanks again lou s!!!!

  • Bryan Lee
    Bryan Lee Oct 27, 2007

    TO THOSE THAT DID NOT HAVE THE SAME CAPACITOR PROBLEM THAT I HAD, IVE BEEN TOLD THAT IT MAY BE THE INVERTER, AND UNFORTUNATLEY I DO NOT KNOW WHERE TO GET THEM OR HOW TO FIX THAT PART, AT LEAST GIVE THE CAPACITORS A VISUAL FOR SIGNS OF BULDGING AND/OR LEAKAGE. LIKE I SAID THIS WAS THE PROBLEM FOR MOST OF THE PEOPLE IVE RECIEVED EMAILS FROM. ALSO, TO GET THE FRONT BEZEL OF THE MONITOR OFF, UNSCREW THE SCREWS ON THE BOTTOM PART OF THE BEZEL, GENTLY PULL THE BOTTOM PART OUT FROM THE BODY OF THE MONITOR AND WORK IT UPWARD TWARDS THE TOP. IVE HAD A FEW PEOPLE ASK ME HOW TO GET THAT PART OFF CAUSE ITS A LITTLE TRICKY TO REMOVE BUT WORKING IT UPWARD SHOULD GET IT OFF OF THERE GOOD LUCK EVERYONE!

  • Bryan Lee
    Bryan Lee Dec 28, 2007

    ok ive had a lot of requests for a video showing what capacitors and how to replace them ive posted i brief run down on how to fix it, its going to work for most of you, but its not going to work for all of you. from all the emails ive gotten theres a few that had good capacitors but something else wrong. replacing the capacitors worked great for mine and hopefully it will for yours heres the link its split up into 4 vids good luck and im sorry for those of you that this solution didnt work for. i wish it worked for every single person and i get really mad at this company every time i think about it well heres the link and good luck!!!! http://www.youtube.com/profile?user=bnut...

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I had the same problem, it turned out to be the power supply. Power supplies for this model are impossible to find. I replaced the 5 bad capacators, works fine now. You can visually tell which caps. are bad because they are domed on the top. Capacators should be flat on the top. Hope this helps. Lou

Posted on Aug 08, 2007

Say if we were to tear it open, how would I go around to fixing it?

Posted on Jun 01, 2007

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To:The Guest that this fix did not work for, make sure all of the capacitors are in correctly (polarity is important) and if any liquid leaked out of the base of the old capacitors and is on the board. The liquid that comes out of these capacitors is conductive and corrosive and will mimic the same problem if it is touching any of the leads on fresh capacitors. You can clean it off with a Q-tip and some alcohol, also check out DoofusOfTheD's last post, your problem could be the extra capacitor that he found.

I have the same problem and will be replacing the capacitors in the next few days. If it fixes my problem, cool, if not I will try to troubleshoot and post the fix.

To: BNUTZBCRAZY
About your post concerning the shop that wanted 49.00 labor and 12.00 for the capacitors, and you thought that it was a "ripoff" I don't know what you do for a living, but I'm sure you don't work for free.
I have worked in the repair industry for 25 years, and considering what that person has as far as overhead, the price he quoted is more than fair, considering you yourself said the monitor cost you "over 300 bucks"

That technician was actually doing you a favor, not one tech(myself included) likes to work on monitors that I have met, because they cannot make enough money on them fo pay their bills. Usually a repair shop has to charge about 40%-50% of the cost of a new unit to pay for the tech, supplies, insurance, licensing, electricity,advertising and a host of other charges just to repair you 300.00 monitor. Just be cause you told him what the fix was does not mean it will fix the problem, as the last guest on this forum will attest to. Not only that, if it did fix it and something completely different went wrong with it 30 days later, you would be knocking that technicians door down wanting him to fix it under warranty, thats why I would have charged you 125.00 for the job. The technicians in most all repair shops work on commission and they are expected to warranty their work for whatever the company policy is, and 99 times out of 100 if something else goes wrong with it and it is not related to the circuit that was repaired, the customer does not understand that something else inside that monitor could have gone bad, and now e have an irate customer on our hands over a $49.00 Labor charge and 6.00 profit on the capacitors for a grand total of $55.00 of which the tech only made less than $20.00 and most likely 15.00 for his work. and now he has to deal with a customer that thinks he broke it because he fixed it before.

To say that a repair on such an item for 49.00 plus 12.00 for the parts is a "ripoff " is a really unfair statement. If those capacitors had not been blatantly obvous that they were bad, you probably would not have been able to fix it and the 61.00 repair would have been a great deal for you, so try to be fair when you make statements like that. Electronics techs have to put in a lot of hours and put up with a lot of indignant customers to eek out a living and try to work on 20 types of products and over 100 different brands, so now that you know how things work, give em a break ehh.

BTW: Thanks for the fix, I have one of these (it's my personal monitor) and I have not had to work on this brand before, you saved me the time of pulling it apart twice.



Trialbyfire


Posted on Aug 11, 2008

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Well, first of all. Do not open it if you do not have any knowledge of what you are doing. Because it will probably make it worse. Second, trying different monitor cables will not help either. I had the exact same problem, and I tried everything possible. After a while it stopped working all together. Showed the screen for one second and blacked out after that. No matter how long I let it be turned off. You should probably hand it in to a repair shop or buy a new one. I did the same thing myself and ended up buying a new one. You could also let the monitor stay on, the next time and never shut it off :P.

Posted on Apr 11, 2007

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