Question about Sharp ll-m17w1u 17" Flat Panel LCD Monitor

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Screen turns black after 5-10 minutes

My Sharp LL-M17W1U turns on and is fine for about 5 or 10 minutes then goes black (like if it was turned off) but the on (green) light remains on. I can't even switch between inputs after it goes black.

I left it on all night at work and when I got back to work one day, in the morning, the screen appeared black as if it was off.

Please help.

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  • Anonymous Feb 13, 2008

    I have this very same problem, it just started happening yesterday.

    Sharp Monitor LL-M17W1U is just two years old. After about 5 minutes the screen goes black and the green light remains on. I must turn back on with remote control or off/on button on the side. This turns it right back on, but then it goes dark again at different intervals. Have checked my PWR OPT in Operating System, it is set to NEVER turn off monitor. Do not know how to Check BIOS Power & Freq. as recommended on previous page. I was going to go out and purchase a new monitor today. But now I am wondering if it is a PC issue. Any help would be greatly appreciated. Thx Joe

  • 55thdrummer Apr 15, 2008

    It seems to not be a computer issue, but a problem directly with the monitor. Please someone help who know what they are talking about.

  • sibarra May 06, 2008

    So I had the tubes replaced and now the screen has a turquoise screen that will not change in appearance. No more black, just turquoise. It does appear to have made progress. Nothing happens when I plug in vga input.

  • dalbert123 Jul 06, 2008

    ( same model ) 3 years old or so. Mine just went out while In tv mode. I can hear sound and still change channels. Will not come back on in any mode. Powers on fine though. I saw an ebay repair part but not sure if this is what i need yet.

    Backlight Inverter for Sharp LL-M17W1U 17" LCD TV

    Please let me know if you have any ideas. I'll post if i can find a fix.



  • sricksss Sep 04, 2008

    I have the same blackout issue with mine. It is NOT a computer issue but rather the monitor/tv itself. I have never had mine hooked up to a computer, I only use it as a tv. Does anyone have info on the fix?

  • OCEASAR Oct 17, 2008

    i HAVE THE SAME PROBLEM. i SWITCH THE MONITOR ON. IT TURNS ON BRIEFLY AND THEN THE BACK LIGHT GOES OUT.

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Replace main circuit board - $37 + ship from minnesota. Bet it fixes it. My new board will arrive in a few days -

Posted on Feb 10, 2011

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Its highly likely that the inverter for the backlight is faulty
It is fairly unlikely that you will find the part but its a sharp part numbered 3bs0038011

Posted on Oct 07, 2009

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In my unit it is the power supply module that was defective. Get a 2 amp 12 volt regulated power supply and wire samp power plug on to it and fire up your monitor. Something in the in line power supply regulator was at fault not the monitor, as the power supply could not supply enough current to sustain the whole unit.

Posted on Dec 29, 2008

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Looks to me that this is a marlketing ploy. Come on, parts are not vailable to fix it!
In my case on power on the picture comes on for about a tenth of a second but is overlaid by a black frame like a PIP - then turns black completely.
I bought the montor some 3 years ago and it worked fine until about now.
Looks to me Sharp feels I should buy a new monitor.
Believe me, if I do, it will not be a Sharp.

Posted on Oct 28, 2008

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I just started having the same problem too. I don't think it is a PC issue; the same thing will happen in the TV mode. Does the monitor have some type of protection circuit that is tripping prematurely?

Posted on May 02, 2008

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Check the power options in os from control panel whether the option "turn off the monitor" is in "after 5 mins" if so make it never....

if not check in bios power and frequency control properties...

Posted on Feb 06, 2008

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