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Blank monitor, flashing power light?

My monitor has gone blank. The light is green so it looks like it's getting power, but the light is flashing. What does this mean? Thanks! (I tried attaching it to another PC, but no luck.)

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  • lisasimpsonx Feb 01, 2010

    It is a flat screen monitor (digital)

  • lisasimpsonx Feb 01, 2010

    lcd

  • jimnuggats May 11, 2010

    What monitor do you have lcd or crt?

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  • Master
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Ok, so the the monitor is getting power, there could be a few faults for this problem, first the power board needs to be checked for bad capacitors, this will involve you opening the tv, at the back you see a few screws have a good route around though there could be screws hidding under stickers or have little black grommets covering them, once all the have been located and undone gently prise the back away from the front, its normally just plastic clips holding together now so be carful not to break them.
Considering thats gone well, and the back cover is removed, with the screen facing downwards on somthing soft ie a towel or somthing have a look on the pcb(circuit boards). The power board will be the one you connect the power to, so locate that board and have a good look at it. The componants that you are looking for are barrel like in shape with silver tops, if you see any brownish colour liquid resadue on them or on the board the cap is blown, also if the tops of the capacitors are domed or slightly pretruding they will also need to be changed, they are ment to flat at the top.

Second possibility is that the lcd back light could have blown therefore that could explain the black screen, these are harder to change and would be better to take it to your local appliance shop to get it repaired.

Finally the inverter may have failed, this is the board that scambles the signal from the computer into the picture you see on the screen, if this has gone then the monitor would power on properly but the screen would flicker or you would have a greyish tinge to the screen as though the monitor was on but no picture, out of these possibilities i think you can route out this problem because you have a flahing green light.

The first solution at the moment is the best option for a fix so try that first, post back what you find and will run you through how to change the capacitors if there are any that have blown. Make sure you check the tops of them thoroughly ensuring they are not domed or pretruded.Cheers.

Posted on Feb 01, 2010

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  • Master
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The problem can be bad caps in the power supply, or the power supply is sensing short circuits (in the inverter circuits) so it goes into shutdown mode. You need to open it up and look inside, repoart back what you see so we can guide you further, see example of failed monitors due to bad caps here: http://s807.photobucket.com/home/budm/allalbums

Posted on Feb 01, 2010

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