[DaveWM]

tweeked AGC no change.

pulled chassis checked tint pot with simpson 260 (analog VOM) all good.

checked the 130pf cap connected to tint control, good value, no leakage.

did resistance checks of burst amp, osc tube, phase detector, was a little off of course but mostly within tolerance or just out of. was thrown but the plate load resistor on the reactance control (triode of 6gh8, supposed to be a 6EA8). found a 68k where a 15k was specified, looked factory, check rca field guide, found that resistor changed value on many models, the 68k was on a CTC-11 that used a 6GH8 so I would seem that is an ok sub to be using (the tube chart shows it should be a 6EA8 in the set, but the resistor matches the tube that is installed).

seeing no smoking gun I will proceed with a check out and setup of the color AFC.
my guess is an unbalanced secondary in the burst transformer.