Question about Samsung SyncMaster 512N 15" Flat Panel LCD Monitor

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Samsung SyncMaster 512N 15 inch LCD - display suddenly goes black after approx. 15 minutes of use, unprompted. It is being used with a brand new Mac Mini; display is approx. 5 years old.

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Go to control panel then power option then change setting to TURN OF DISPLAY "NEVER"
Samsung SyncMaster 512N 15 inch - e302995.jpg
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Posted on Aug 21, 2010

  • A-Tech Computers
    A-Tech Computers Jun 16, 2014

    Go to control panel then power option then change setting to TURN OF DISPLAY "NEVER"

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Go to control panel then power option then change setting to TURN OF DISPLAY "NEVER"

Posted on Jun 16, 2014

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Monitor dispaly picture for 3 to 5 second then display gone


From the description one of the inverter transformers have failed, located on the power supply/inverter board.

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Hi, Same problem as mine! Are u suing the original Samsung CX511n cable? If not, video will not appear! Buy the original cable!

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I am using a new computer and I have lost the disc for my monitor to use on this computer. Is there a Samsung site that I can go to do download the drivers I need for this computer. it is SyncMaster...


There are no drivers on the Samsung site that I could find.

That said, you don't need drivers for your monitor. If your monitor isn't displaying anything with your new computer, try turning your computer completely off, make sure your monitor is turned on and plugged in to the computer, then turning the computer back on. Windows should automatically detect what resolutions the monitor supports and your monitor should start working.

Mar 07, 2011 | Samsung SyncMaster 512N 15" Flat Panel LCD...

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We need your kind assistance for "repair LCD monitor 15 inch Samsung SyncMaster model 510N" 1 Nos Let me know the representative office at Jakarta


Around here, it's impossible to buy a "new" 15-inch LCD monitor,
because "used" ones sell for about $30 US.
In comparison, a qualified TV/video technician will charge $60/hour to trouble-shoot.
So, rather than spending money to try to repair it, spend an equal amount of money, and buy a replacement monitor.

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Display powers on but display goes blank after 2 or 3 seconds.


you probaly need you power pcb repaired or the invertor replaced. sometimes the backlights burn out.

Dec 25, 2009 | Samsung SyncMaster 512N 15" Flat Panel LCD...

1 Answer

I have a mac mini osx10.4 with a 512N syncmaster samsung monitor. The monitor worked fine for 2 years and up till the last month while I am on the computer the monitor will go black with a message saying...


samabbott, Toni, The very first thing to check is Samsung warranty.. If not valid you will need to check and see if Samsung has a cash+old unit swapout program for refurbished same model??? Will this 512N do same thing if connected to different pc? If so, then I would suspect the unit's power supply. Whenever strange or weird stuff starts to randomly take place with an LCD display, I would first check the "switch-mode-power-supply"! Have you tested the pc with different Known Good lcd unit? Try the above stuff and report back with a new comment. 12fixlouie

Nov 17, 2009 | Samsung SyncMaster 512N 15" Flat Panel LCD...

1 Answer

Monitor to pcu cable


You are looking for a 15pin male to male analog VGA cable, which can be found online for cheap or retail Best Buy, radio Shack for more

Aug 25, 2009 | Samsung SyncMaster 512N 15" Flat Panel LCD...

3 Answers

Every 10 mins my monitor goes black and then the picture pops back up


Its the poblem of SCREENSAVER which gets activated every 10 minutes.

In Control Panel, go to Display Settings / Personalise - - - - -> In Screen Saver select NONE.

Your problem will be solved for sure.

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Samsung SyncMaster 17" LCD Blacks out


If you have a second monitor, you could use your computer until the monitor goes black... then plug in a replacement monitor. My guess is that one will display black too...

My gut feeling is that your VGA card is on the fritz... I'm not convinced it's your monitor. Do you have a replacement VGA card you can try? I'll bet that'll take care of the problem.

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