CTC-16 Restoration

[Zsuttle]

I've been slowly working my way through a CTC-16 that I picked up several weeks ago. The picture tube tested strongly, and all but one of the tubes were RCA tubes. All but a handful of tubes checked out and were replaced. I replaced the electrolytics as 2 of the 3 cans had a fairly high ESR. There was a corroded wire that was replaced on the topside of one of the boards.

I had excessive HOT current, and was able to bring it within spec by replacing several out of spec caps in that section. I was then able to adjust it to spec. HV is still on the low side (20kV) and have yet to look into that.

I put a test pattern generator on channel 4, and was able to get a somewhat fuzzy attempt at a colorbar. I believe it to be a chroma issue, but have not looked into it other than verifying the presence of the chroma oscillator at the chroma synce phase detector input.

Any advice is appreciated in troubleshooting this set