CTC-9 tint control oddness

[DaveWM]

I recently turned on my CTC-9 and noticed the tint control acting "funny"

it had a dead area in the middle that caused the CRT to have no color just a BW picture, rotate it toward purple and the color would come up slowly, like a control control, but no change in tint. rotate back thru the dead zone (about middle till the very end of CW) and you could get a bit of green tint control but very weak color and the fine tune had to be on the ragged edge.

I did not recall having this issue with the set in the past but it had not been on in months, so not sure if it was doing before.

Anyway the fix was in the color killer, I turned it CCW and all was fine. I did not bother to set it up at the time (no color snow on off channel) but will later.

Anyway it confused me the way it would only kill the color when the tint range was in the middle to nearly fully CW (green). I just assumed the Color killer would kill the color completely if not adjusted right. Perhaps it should and I have some defect in that circuit.