Early 70's Tube Color General Electric

[zenith2134]

I found an old GE color tube chassis tv- from the early to mid 70s. It says "insta-color" on the back but the model and chassis info is gone. The whole set is tubes. It works kinda-- the HV comes up but is low, and you hear the sound trying to come through but when you turn up the volume, there is like squeal through the speaker from low frequency to high frequency. All tube sockets were cleaned and all controls cleaned. CRT filament heaters light.

Also, there is a 600v capacitor near the horiz. output tube which has one end disconnected. I cannot figure out where to attach the detached lead on the chassis board, however. I wish I could get a picture but i can't right now. it is a very nice set and i would love to get it going. I have all supllies here but I need advice. Thanks everyone. PS - As per the model, It says "service-designed" on the case if it matters.