Zenith system 3 1979 repair help

[zeno]

Sounds like the main filter cap is bad. They usually dont burn
though. If it has the power xformer there is an oil filled cap
in parallel with it. Its oval & just like a motor start cap.
When they short it kills the set. If it opens the pix will
pulsate. In any case be sure its not running hot when you are
done. A lot have been going lately. The 22-####-# is the part #

73 Zeno
LFOD !