Need help with Zenith Space Command 400

[Tubejunke]

I don't know if you have read any of my posts about my set that is just like yours. I got stumped on the repair a few years back and need room. I tried to give the set to a good home and nobody wanted it. So, recently I have said to myself, "their loss" and considered taking another shot at finding the problems that plague what could be a wonderful set that to me deserves some respect due to the fact that it is a remote set AND it has a 24" CRT which was not exactly common in the 1950s. I WISH that my set was as close to working as yours! Mine has new capacitors, but something else is causing vertical sweep issues and hum for sound. I am lucky that mine seems to be low use. The CRT is as bright as new and most tubes are stock. I wish you luck on yours. These are supposed to be some of Zenith's best chassis, and I can tell you that the capacitors are not hard to replace.