Hi,

I replaced HOT and FET that supplies B+ (both shorted), but image doesn't appear. I think HV is not present and hear relay clicks, but B+ is near to zero. +12/+5/+80 V voltages are ok. Could it be a low power supply failure? Where should I check?

I appreciate any help. Thaks in advance,

Enrique

i think the problem is yoke.....
try to disconnect the yoke and then power it on....again..
check also vertical ic....