Intermittent problem with a newer Zenith TV

[wa2ise]

If you are comfortable taking the back of the TV (and know your way around high voltage electronics), chack that the connection between the CRT pins and the socket (likely there's a small circuit board with socket at the end of the CRT neck) are still good. Gently unplug and replug in the socket (check that there's no glue or such holding it). Don't force it, you don't want to break a CRT (wear googles and other personal protection just in case). Other connectors may need to be unplugged and replugged in. What this does is remove any corrosion inside the points of contact inside the connectors.

Other possibilities are bad solder joints. Check that board on the CRT neck, and other points where there is decoded RGB video.

At this point you might start shopping for a new TV....

[rca2000]

The RGB out. transistors, in particular, probably need resoldering. these transistors are on heat sinks. CCheck o them. Also, there are several resistors, that may need resoldering, too. Check the crt board carefully.

[kc8adu]

had one in the other day with similar issues.
its crt was marginal and bumping the g2 a bit fixed it.
the color shifting is the akb system trying to balance the greyscale automaticly.

[Eric H]

Wasn't 94 one of the years Zenith was having CRT problems?
This could be an intermittent short in the guns causing this problem.
Sometimes GENTLY tapping on the neck of the tube with a plastic screwdriver handle will cause the problem to show up.

I was thinking the same thing as Eric.....this is a Goldstar built set with CRTs that have worse reliability than a 20 year old Yugo. Unless it turns out to be a easy fix, toss it and just be glad that you got 10 years out of that it......that's about 9 years and 6 months more than usual.

Gimme a pre 80's Zenith any day.

Anthony (AKA Disco Zenith Boy)

[andy]

I think Zenith bought their 32" and 35" CRTs from another company. It doesn't eliminate the possibility of a CRT short, but this CRT should be no worse than other 35" TVs of the time. It probably has a Thomson CRT in it. As long as it doesn't have 1101 as the EIA number, it should be fine.