1998 JCM2000

[LarBal]

Ok since the amp is stable, but getting no signal from going in/out of either FX jack, is it reasonable to start looking at IC2 as a problem?
Amp has all new tubes, voltages at all tube sockets are good. I haven't started looking at low voltages, I'm looking for some guidance there.

I edited together 3 schematics to get what I *think* is my amp. Certainly the topology would be correct at least

[DrGonz78]

I would test the low voltage power supply to ensure function. I would ohm out all computer cables they used to connect all those circuit boards. Ground connections have a star location right by the FX board. I have found those to need tensioning at times.