Question about AOC LM729 17" LCD Monitor

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Monitor has power only, no display. Serial #08138JA019415. Product Name LM729.

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  • richard_w323 May 14, 2009

    The only light is the green power light. However, when first booting up I get a display for about a half second and then screen goes black and does not display again.

  • richard_w323 May 19, 2009

    No lights in rear of monitor. Can find no logical way to get into the monitor to do anything further.

  • richard_w323 May 19, 2009

    I have rechecked, there is just no way I can find to remove back cover of monitor. Thanks for trying to help. Appears I will need to purchase a new monitor.

  • Frank Zhang
    Frank Zhang May 11, 2010

    whats lights on or color changable on LCD key pad rear when you turn it on?



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  • 191 Answers

Ok, your monitor problem is the inverter or lamps is not working well. you need do:
1) first thing you need check power board capacitors if there is any swelled it should replace. check all DCoutput voltages like 5V/12V etc. normall
2) check the inverter board it can maks this problem
3) if inverter works normall that is lamps at downside getting old, need to change.
hopeful all thing you can do it well
hope this help you fix it, please rating me thanks

Posted on May 14, 2009

  • 2 more comments 
  • Frank Zhang
    Frank Zhang May 15, 2009

    any wrong you check oout? or any question? please

  • Frank Zhang
    Frank Zhang May 18, 2009

    please take a rating let me know how much helped you thanks!

  • Frank Zhang
    Frank Zhang May 19, 2009

    "Can find no logical way to get into the monitor " you can not open the all cover? or you can do anything repair? what ever?

  • Frank Zhang
    Frank Zhang May 19, 2009

    "Can find no logical way to get into the monitor " you can not open the all cover? or you can not do anything check and repair? what ever? please let me know what you want to do?



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To my understanding, an AOC LM729 is capable of 1280 x 1024 and therefore should be able to display your preferred 1024x768 .

Perhaps you need to set the PC's Display Screen Refresh Rate to 75 Hz or lower (DisplayProperties/Settings/Advanced/Monitor).

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

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Thank you for using FixYa.

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Feb 02, 2008 | AOC LM729 17" LCD Monitor

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AOC LM729 17" LCD Monitor - Manuel

I assume you only found the 4 mount screws in the back... You also need to take off the front silver edging - it pops off with some negotiating, but if you find the right spots and don't pry hard it will come off clean without too much difficulty. Then take out the screws that hold the screen inside and it should drop out.

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