Looks like you have the early version under run 401.
IIRC one cap behind the h out ( shown), one or 2 on the
flyback transformer & 2 or 3 on the bottom chassis. If they
are all orange no worries. The white ones open. When they do
the HV goes up apx 1.5 KV for each one opened. If it had the
4 lead cap it would be wire tied to the heat sink & is much
bigger than the 22-5001. These caps cost Zenith millions.
They had to recall about a year of sets. Thats about 20% of
17, 19, 23 & 25 inch sets sold in the US.
73 Zeno
LFOD !