Chassis picture !!! That way we may know who built it.
Most the time int shut down after warm up is a cold joint.
Try tapping around. Most sets will shut down for:
No vert sweep
Over current from bad FBT or short on its secondary.
Too much HV caused by power supply usually.
I would look at the vert IC for bad cons first. Relay
chattering may point to an electrolytic on the coil supply.
Also check around the hoz drive xform & hoz out.
There are a ton of posabilities, sometimes even with a manual
shut down can be a bitch to find.
73 Zeno
