Zenith TV Color intermittent

[jpdylon]

I had a color sentry with this problem as well. It is in fact the controls on the sentry board. You'll have to do some nasty dismantling to get it out of the cabinet, but once you do, grab some de-oxit and clean out the sentry switch, as well as any of the pre-set control pots. These are all subject to oxidization and will make trying to watch your zenith a living hell.

Also check all the ribon connections from from the sentry board. Sometimes the solder joints get weak and cause intermittant connections. Look around the video section of the chassis for the same problems.

Good luck. If you get it working, these zeniths have superrior pictures to most other sets.