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Monitor Issue: 5 seconds of picture the monitor goes black.

Hi,

I have a Samsung SyncMaster 173s as a second monitor, and one day I noticed the screen was black. So I restarted the PC and at started the screen showed a picture for about Five seconds then went black (no flashing green LED).

I tried reinstalling the driver, changing resolution, and Hertz, and each time a setting was changed the screen would light up with crystal clear picture, then go black after five seconds.

Please help, I don't want to buy a new Monitor, when this one seems to work perfectly for five seconds at a time :)

Thanks,

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  • C-dub-917 Dec 17, 2008

    I have an old Dell monitor that I replaced the high-voltage power inverter with an external unit. Prior to this, however, the display would come on for about 5 seconds and then go blank. I also have a G-Naga VI 17'' dis\play that is now doing the same thing. the only thing thats different is that after a cold reboot of the PC the monitor works just fine. Does this sound like a driver issue?

  • Anonymous Jan 04, 2009

    This same problem exisits on my View Sonic 20" screen except that after 5 + tries it will eventually stay on. What is happening and can a novice repair the problem?

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  • 11 Answers

I had this similar problem. I found out that there was a bad 1000uf, 16V cap on the power supply board. The cap is too close to a heat sink and over heated. I bought the cap at radio shack for $2, installed it so that it is far away from the heat sink. Monitor now stays on when powered up.

These monitors are difficult to open.

After removing the stand, you need to insert a flat screw driver at the bottom of the screen where two slots are located. Then work the screw driver around until the two plastic pieces are separated. Remove the cover plate and unscrew the push buttons. Unplug the monitor cords from the driver board. Unscrew the mounting screws from the power supply board and remove. You will need to pinch the plastic support in the middle of the board to remove. Unsolder the cap. It is located near a copper heat sink and the value will be on the cap. It will be buldged up on the top. You will see burn marks on the board surrounding the cap. Install the new cap and solder. Be careful not to solder across joints.

Reassemble and turn on. Should solve the problem

Posted on Dec 24, 2008

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I had the same problem with this monitor (Samsung 943nw)
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