Zenith B25A24Z power supply kit?

[Tim Marcus]

Is there a kit available for this model? Unit shuts down seconds after
power up. B+ 129V. All trannys seem OK. Frustrating problem - is there
a quick fix? As usual any info and advice is very very appreciated.
thanks - Tim

 

[David]

No kit, replace the high ESR capacitors in the power supply first.

Second troubleshoot the flyback, ring test it or bring set up on an oscope
with lowered b+ to the flyback.

Third, check for seriously shorted tube if it uses a Zenith made crt. By
the time the "Z" line came out, the serious tube problems had dimished
greatly, but are still seen.

David