Zenith System 3 acting up

[zeno]

IIRC the color sentry put the light sensor on & locked the color tint & contrast.
Again IIRC the presets are separate on these. Marked BL, T & C at the
customer controls. This is a Y line set & thats when they introed the
double sided control board on the cheap "Custom" series 9-181 sets so it
may have one.

CHROMATC turns off all the controls & turns on Auto Tint Guard. Controls
are through the center of the customer controls.
Yes I have seen a few noisy switches on those.

This set is a perfect candidate for tapping around lightly to find
the problem

73 Zeno
LFOD !