[SwizzyMan]

I am currently solving a horizontal issue with this set. I have since fixed this but it seems the tuner and IF circuits have gone out of whack. Ive tried all adjustments and tubes. What I would like to do since this TV will soon be in a cabin in Minnesota where over the air and cable is hard to find is to see if it is simple to inject a composite signal into the video and sound amp to bypass the tuner and IF. Is this possible by just connecting a direct video source or will I have to build a preamp for this set too?