I thought I'd try my hand at actual diagnosis instead of using the shotgun approach. Main problem was no snow / no video coming through. Doing some voltage checks and found everything WAY out of line. Eventually traced it back to a main power resistor R125 on Sams, 4k 10w. It's mounted on top of the chassis behind the tuner. Wide open. My luck that I have 20 new 5k resistors and not one 4k. I put a 5k in there for the hell of it, it made no appreciable difference in the operation of the set and got VERY hot very fast. So now I'm thinking like there's something else shorted that burnt up the old resistor. Probably a capacitor lol. Also there's a resistor R131 8k 10w, that I cannot find for the life of me. Sams shows on the alternate chassis it may not exist, but it should on mine. However, Sam's schematic is preferential to the tv/radio model which is missing the end of the audio section and some other stuff.
Thoughts?
Also, digikey does not stock any 10w 4k, would 25w be ok?
As an aside, a week ago I found a Zenith console stereo in the trash. Someone ate the record player and trashed the cabinet, so I stole the tubes. The first one I pulled was a 6AU6, and I was happy cuz I needed one for this tv, but the rest I pulled were clearly more modern numbers. But with the help of a tube substitution book, apparently I can use 5 (for this tv) out of the 8 or so that I took. Yay!
>>SCHEMATIC<<