1975 Zenith Solid State console no color demod

[zeno]

First you will hear about the 4 lead cap. It is NOT one of the
bad ones but can fail. DO NOT fiddle with it or the HV can go up
to 40KV & start to destroy things NO SHANGOING!
Two of the leads complete the HOT E to ground circuit.
Two others the HOT C to flyback circuit.
IIRC it uses the 800-860 kit BUT get the part number first & I can
look it up. Format is 22-####-##
There are a few different ones & you gotta use the right one.

Quick check for H drive on most sets is check the voltage on the C of the
H drive transistor. ( 9-90 module). IIRC apx 75 V normal. If high
or low osc / drive is out. Last thing is Zenith often interlocked the
modules so if one is loose or out the set goes dead.

BTW I have no idea what that wire is about but I dont like it.

73 Zeno
LFOD !