Hi guys,
I got given a kortek ktn20 a few days ago and only had the chance to install in my cab yesterday, I switch the cab on and starting playing and had a good picture, After about five minutes the picture faded to near black just show very dark red and after a few seconds the picture returned and i started playing again, but again after five minutes it faded but the picture returned a lot quicker then the first time, i left the screen running for an hour or so and watched and it seems like every five minutes the picture fades then returns.
Could this be a tube fault or a dodgy cap?
Thanks guys