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Samsung 940B monitor, 14 months old. Power light on when connected to PC, but no images, not even menu or Digital/Analogue prompt. PC recognizes the monitors presence,any ideas please?

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Monitors are passive components in a computer system. These just receive signal from the CPU. You may find another CPU and connect your monitor to it to test if it really doesn't work. If it works, this may just mean that your video adapter has a problem.

You can also check the cable attached to the monitor. It may be damaged due to twisting or other causes. Check also if the port is inserted firmly.

Posted on Aug 31, 2008

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Posted on Jan 02, 2017

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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!

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My monitor has its power light on and the com recognises it, but there's no image.How can I fix this?


press menu button increase brightness if no picture then there is a problem in monitor open it there is a fault in e.h.t. take screwdriver and rotate a preset attatched to e.h.t.which is a biggest black part of a monitor if no brightness on monitor then replace E.H.T

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Monitor just went blank, no power light.


Was the PC running, and then shut down? Or, did it never start in the first place?
It sounds like it could be one of many things. Sometimes if the processor fan has failed, the computer will start up, and then shut down. Also, bad memory can cause the PC to shut down.

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try the monitor on a friends computer or family menbers computer first as it may be your grafic card at fault.

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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..

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Are you sure the TV has a built in tuner? Does your country have digital over air broadcasting like my country or not?

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Does the monitor do this on all resolutions?

Try changing the refresh rate on the monitor's properties page and see if the effect changes at all.

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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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