Question about Samsung Syncmaster 940BW LCD Monitor

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My Samsung 940B monitor has gone black and when I plug into computer blue light blinks but the monitors won't display my desktop what is wrong?

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When i turn on the monitor, it is on for few seconds and turns off

Posted on Jan 19, 2011

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Posted on Jan 02, 2017

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Samsung syncmaster 2220 blinking blue light and no image display


Here's some tricks I would try...
1. Verify the monitor's power cord is plugged firmly into the wall outlet and the back of the monitor.
2. Verify the monitor cable is firmly connected to the computer and the monitor.
3. Verify that you have turned the monitor power switch on.
4. If the power light on the monitor is not on, test the wall outlet (plug in a light or something you know works).
5. If the power light on the monitor is not on, try a different power cord.
6. If the power light is on and yellow or orange or flashing, but nothing displays, or the display is incorrect, borrow a monitor from a friend. If that works, your monitor probably needs replaced.
7. Also, you could try your display on a friend's computer. If it doesn't work, your monitor probably needs replaced. If it works properly on your friends computer, the problem may be with your computers video output port, motherboard video chip (or video card, if you have one), or drivers.

Good luck.

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Probably the power supply is failing but periodically recovers briefly.

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Black screen and blinking blue light


blinking blue lights means the monitor is stand by.for the black screen
you should check your cabels from monitor to computer.they should be seated tight.if still no picture your videocard is proberly brooken.
it should be point out at LCD-monitors are fragile.

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1 Answer

My samsung 940b it has a clear bright screen ( as normal ) just for 2 seconds then the screen turns dark but you can see very very dim Window logo.Turn off the power ( does not matter for how long ) when...


Shine a flash light onto the monitor, if you can see icons/desktopon the screen then you know you need a new monitor!
You should be covered under warranty!

Mar 02, 2011 | Samsung SyncMaster 940B Monitor

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I have two monitors. One Samsung SyncMaster 2233 an one Samsung SyncMaster 2243. My problem is that the SyncMaster 2233 for some reason is totally black. I'm usually not terrible with these things, but my...


You're using dual monitors and one is black? If so-- when you switch the cables on the monitors.. the same monitor stays black? This sounds like bad monitor. If I understand you right.

Feb 10, 2011 | Computers & Internet

1 Answer

Montior screen is half shaded and half bright


Do this to check if your monitor is in working state or not...!

Step 1:- Turn on your computer.
Step 2:- Unplug the Video Cable of your monitor which is connected with the computer.

( Video cable:- Cable going from the back of your monitor to the back of your tower. It has a plug with two screws on the plug ends, which you can unscrew to unplug it. Thats how it looks like. Some times it is in grey in color some times in blue.)

Step 3:- Now check on your monitor. If the display says " No Input Signal " :- your monitor is fine. Some thing wrong with the computer graphics.
If there is not display and the monitor light is blinking or solid the monitor has gone bad.

( Note :- Remember when you unplug the video cable do not unplug the power cable of the monitor. )

Let me know if it helps.

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1 Answer

How to fix aopen F75PS Display Power Light Blinking, Display Won`t come on.


A blinking power light typically means there is no signal from the video card, so check the connections and try another monitor (or plug the monitor into another computer) first to see if the video card is perhaps the real culprit.

Mar 14, 2010 | Computers & Internet

1 Answer

SyncMaster 940B


Sounds like you have a video card problem. If it works on someone elses PC and not yours. Replacing this video card on your PC should fix it..

May 14, 2009 | Samsung SyncMaster 940B 19" LCD Monitor

1 Answer

No Video on Monito - Blue Power lite is on


Hello.
Sounds like the backlight inverters or CCFL tubes are at fault.
Turn the monitor on with it connected to a known good SVGA signal source that is sure to have video. (Like the computer when it is operating.)
Hold a flashlight to the screen of the monitor and see if the faint video can be seen through the screen.
If the video is faintly present on the monitor screen using this method of illumination, then either the CCFL inverters / Inverter board has failed, or the CCFL tubes themselves have gone bad. (CCFL = Cold Cathode Fluorescent Lamp)
This should give you a better idea of how to proceed, repair or replace.
If it is the inverters or CCFL, Repair costs for a DYI project could range from $70 to $120 depending on the level of your expertise and parts availability.
Good luck with your quest.

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