LG tv screen goes dark

[WallArt-Online]

I have a lg 50px4d the screen goes dark every now and then, you can still see the picture but the quality is also reduced.

It's been doing it for a while but today it seems to happen every few minutes.

I will try and attach an image

[Alastair E]

Re: LG tv screen goes dark

Has X-Sustain issues...

High probability one of the IPM's is intermittent--Common fault.