Unstable tint Zenith CCII

[Tugboat]

I'm back with another request for some help. A number of people here are responsible for helping me fix my TV a couple months ago, and now I'm hoping you can do it once again.

Where would I start looking for a problem with unstable tint? When watching the set, every now and then (sometimes a lot more often), the tint will bounch between being more greenish to more red and then finally back to what it was set for. I have all active controls turned off.

Thanks!