Samsung SyncMaster 712N 17" Flat Panel LCD Monitor Logo
Posted on Sep 03, 2007
Answered by a Fixya Expert

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SyncMaster 712N monitor problem

When I turn ON my monitor I see the dispaly on it for a second and after that its just a black screen. I can see the dispaly again for a second if I again turn OFF and then ON my monitor. Can you please suggest me how can I solve this problem. Thanks

  • 2 more comments 
  • walitys Dec 06, 2008

    I can see my content, but for just a second. After switching off and then off I can see my content for another second. It lasts not longer than a second every time...

  • Anonymous Feb 19, 2009

    My problem started with dim flickering screen for sometime and then it would come on and work fine. Now it is continuing to turn black and stays on only a few second after switching off and on. When it is on it is still dim and flickering. I have already changed the graphic card, but that didn't change it.

  • greahm Mar 09, 2009

    Same problems as described. I have attached to another computer with the same results. If I turn it off and then back on, it will come on very briefly.

  • hollywallace Apr 15, 2009

    The monitor will stay on for awhile, but will eventually go black and not come back on. (The power is on, but the screen is black.) Have tried it on two different computers with the same result.

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  • Posted on Dec 02, 2007
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I've had a similar problem. I took apart the monitor (it was out of warranty by that time anyway) and found the lamps would not stay on. They'd flash for a split second before remaining unlit. I tried hooking up another LCD monitor's lamp to the Samsung, and even though I knew the other lamps worked fine, they exhibited the same behavior. Looks like something's wrong with the circuitry. The LCD actually does display the desktop on screen correctly. It's just the lamps refusing to stay on.

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  • Posted on Sep 03, 2007
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Start by checking all the connections. Boot to safe mode and see if the problem persists. Check your power saving parameters and see if the monitor turnoff is set too fast. This could be a hardware problem also, especially the monitor or the graphics card.

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AOC 917sw starts normally then goes black after a few seconds?

More than likely, you have set the resolution too high for the monitors capabilities. Set the computer to a lower resolution, and try again. If using windows, try to boot in safe mode to accomplish this. Other OS's can take variables at boot also to do the same. You'll have to search for yours.

Good luck.

Bruce
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Monitor cycles on and off. There is a display, but only shows for 1/10th of a second. Its a image flash, then black screen, wait for one minute, then it tries to turn on again.

Most common failure in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, falied inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed SAMSUNG monitors to get some ideas what goes wrong: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further.
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SyncMaster 712n doesn't come on

1st you check Local tech after that buy the monitor.

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I have a Samsung 712n monitor that passes a self

jcriley, If your SAMSUNG is not to old, try to get them to replace it or do a cash+old unit for a same model refurbished unit! You may have a monitor that has a "switch-mode-power-supply" that is in partial or full shutdown mode. When very strange and weird things start to occur with a LCD fluorescent lamp backlit monitor or for that matter LCD tv/monitor I would always suspect the culprit to be the SMPS!!! Get back to me lmistyrel@ aim or 12fixlouie on fixya after you perform SMPS evaluation test using the flashlight trick to see if the screen data is still being displayed even though the screen appears to be blank. It may only be BLACK, but not blank!! Read some of my other posts here on fixya and also visit a website www.ccl-la.com/badcaps.htm FYI !! It is run by another tech on fixya nickname "buddymc". If you do a second post, give us a little history of unit in question such as age and screen appearance just prior to BLACK SCREENof DEATH setting in! 12fixlouie
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Monitor goes black

Kindly attach the screen to your another system or note pc. Else being a simple device it contains only three main parts.
1) Panel
2) Power supply + HVPS
3) Main board
need to be tested one by one.
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When I power up my PC and monitor, the screen comes on for a couple of seconds, then it goes black

this happens with a few monitors and some graphics cards. if you connect your monitor through a DVI cable, try connecting it through an analog cable. if possible change your graphics card, that should solve it completely.
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Samsung

Please try to connect your monitor to another PC, if still the problem exist, then probably an internal electronic part/s is cold soldered / defective, which I suggest to bring the unit to an authorized service center to fix the problem. regards
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Dell monitor

Monitor Help CH000315, Black borders on side of screen. CH000316, Dead or black pixels. CH000403, Macintosh and/or PC monitor compatibility.
Black borders on side of screen. Additional information about what causes black borders on computer displays.

Good Luck, Please dont for get to Vote/Thank You.
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