OK remember them well. I dont have a manual but first I would
check for a cracked PCB from shipping. The other thing was a transistor
in the power supply went left & right. That was updated & had a new
part ## if you look for one.
One thing on this set. The main filter can stays charged & I would get
bit on almost every one. You should discharge it especially when
soldering or you may put 150 volts in the wrong place.
IIRC Johnct was RCA & can help you more.
73 Zeno
LFOD !