Touchscreen Monitor fails on start

[charddavi]

I have an LG Flatron Monitor touchscreen
When I turn it on the power light comes on after a 2-3 second delay the screen flashes up the computer input it then rapidly shrinks to black but the power light stays on.

I opened it up hoping for dust problems but found nothing.
These are expensive so is it worth having it repaired or should I just bite the bullet and buy a new one?
David

[EzyStvy]

Also keep in mind that the video card might not be sending anything to the monitor.....

[Planefreak]

Have you tried another monitor on that computer and another computer with that monitor? Either could be the issue.

[tmathews]

Don't forget to try a different cable when you're swapping monitors.

[charddavi]

I tried all of the above thanks, but I found out it has 3 year warranty and here i am at the 2.5 year point.
So I have put it in to be repaired by someone other then myself!

[Planefreak]

Nice, thank god for warranties!!!

[charddavi]

I should have tidied up this loose end earlier.
I rang LG and they sent me to a tech about 3 miles away. He repaired it in 3 days without a quibble
and here I am a happy customer! By the way it was a power supply fault.