Well, that was my next step. I then turned everything back on… and my B135 refused to start up! I think I might have turned it on/off/on too quickly when I noticed I’d forgotten to reconnect the phono stage. Usually one hears the soft start relays clicking, but now I don’t. Tried again this morning, with the same results - it ends up flashing the light above the power button quickly in red. Bit of a pain as I know don’t know if the TT hum is fixed by fitting the headshell/cart, and it looks like I’ll have to get the B135 sent off (at least under its 20 year warranty!).
Sadly I don’t even have a backup amp to try nowadays-so much for minimalism!
Humph!