Question about Samsung SyncMaster 191T 19" Flat Panel LCD Monitor

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SAMSUNG SYNCMASTER 191T PLUS

My monitor has been working fine since I got it. Went to open it, and it will stay on for 20 seconds then go black. I press the power buttton to power it off, then turn it on, then 20 seconds later it turns off again. Where should I start looking?

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I have the same problem. Have you found a solution?

Posted on Apr 17, 2008

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Posted on Jan 02, 2017

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The monitor is a Samsung SyncMaster 191T. My cat laid down on the keyboard today and now I am looking at an upside down screen. Can you help me out?


If you are in Windows XP, you can use the following key combination:
CRTL + ALT + up arrow
I am not sure if this combination works in Windows 7.
Good luck.

Jul 25, 2011 | Samsung SyncMaster 191T 19" Flat Panel LCD...

1 Answer

Samsung SynchMaster 191N Monitor stay on fine for 15-20 min after that it goes dark,, and power swtich thrun itself off, cannot turn on or off, unless I unplug power for few min and replug. Then stays...


If the OSD has display and after a min goes dark that monitor has 2 possible problem. 1. bad electrolytic capacitor from secondary power supply to inverter area or fault semiconductors around inverter area. 2. Bad CCFL or fluorescent lamp of lcd panel it may be reddish color.

Sep 29, 2010 | Samsung SyncMaster 191T 19" Flat Panel LCD...

1 Answer

Samsung 191T Blank


You need a fluorescent back light and inverter kit. Available on eBay.

Jun 10, 2009 | Samsung SyncMaster 191T 19" Flat Panel LCD...

1 Answer

Samsung SyncMaster 191T


You have either a bad inverter board or burned out backlight fluorescent bulb. Very common on this monitor.

Dec 20, 2007 | Samsung SyncMaster 191T 19" Flat Panel LCD...

1 Answer

Samsung SyncMaster 191T


Sounds like the invertor board in the monitor is bad or the LCD screen has had it and needs replacing.

Jun 04, 2007 | Samsung SyncMaster 191T 19" Flat Panel LCD...

1 Answer

No more image on SyncMaster 191T...but


I would suggest that your Video card isn't working correctly.. OR the drivers won't work properly. Try a replacement Video card.

May 01, 2007 | Samsung SyncMaster 191T 19" Flat Panel LCD...

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