Question about MPC Computers Envision EN 7100s 17 in. Flat Panel LCD Monitor

4 Answers

EN-7100si Hi my problem is that my lcd will light up for half a second the go almost completely black. If its connected to the graphics card the i can see desk top or internet whatever i am currently on but only for half a second and if its not connected to the cpu then I see the Cable Not Connected announcement. If I press the power off then on again I get another half second. Only time i can see anythigh is for that first second when it powers on. I have tried connecting it to other 2 other computers and have the same problem.

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  • ottlaw2 Dec 03, 2007

    SAME problem. 3 year warranty exoired 3 months before monitor died.

  • Anonymous Dec 03, 2007

    Hi my problem is that my lcd will light up for half a second the go almost completely black. If its connected to the graphics card the i can see desk top or internet whatever i am currently on but only for half a second and if its not connected to the cpu then I see the Cable Not Connected announcement. If I press the power off then on again I get another half second. Only time i can see anythigh is for that first second when it powers on. I have tried connecting it to other 2 other computers and have the same problem.

  • Anonymous Dec 17, 2007

    The exact same problem,and i can take a flashlight and shine it on the screen at an angle and see the icons and the desktop backgroun




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Yikes!!!

NO.. Do not replace the LCD panel, nor the chip that controls the backlight (there is no such chip anyway), nor the backlights themselves, as none of the above are broken.

There are some capacitors on the low-voltage side of the internal SMPS. One or more of them is bad. Most likely, you will be able to see bulged tops on them. Replace them with identical uF rating and same or higher voltage rating, making sure to get the polarity correct.

About the only CORRECT thing I've seen in any of the other replies to this post is that the problem is common among many LCD monitors. I've personally repaired five of them in the last three days.

Posted on Oct 23, 2008

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Had exact same problem........
Pharkus was right on. Replaced the 1000uF 16V and the 470uF 16V caps next to the largest/yellow transformer. One at the top and one to the left. Works like new!!!
Thanks Pharkus!!!!

Mark

Posted on Mar 24, 2009

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This problem is common between a multitude of lcd's i am pretty sure that it is either a lcd bulb problem (mini floresent) or the chip inside the monitor that corrects the amount of power the bulb gets. I have replaced bulbs for these and it has fixed this problem.

Posted on Jun 18, 2008

The LCD IS MOST LIKELY GOING TO COST YOU OVER 150 DOLLARS TO GET IT FIXED BUY A NEW ONE

Posted on Oct 01, 2007

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HI there,

I fix many lcd screens
i can tell you that its usually a result of the capacitors going bad.
If you dont mind taking the screen apart you can fix it yourself for around £3 providing you have a soldering iron and supplies.
If not you can buy a cheap iron for about £10 from maplin or similar shop.

Any caps that look buldged have blown and should be replaced.

It seems to be a common problem with your screen, you can find more information at the following link

http://www.ehow.com/how_5086953_repair-flatpanel-lcd-computer-monitor.html

Hope this helps
please rate
thanks

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