I think I have my work cut out for me with this set
I don't know the history of it, but I know the seller I bought it from had plugged it straight in to "test" it, with no speaker attached and the switch in TRANS mode, whether R44 was cooked prior to this I'm not sure.
@Aub I think I know the capacitor you mean, It stood out visually to me, I believe its C54.
Before I do that however I will replace the other bias network resistors (R43 and R45), and have a closer look at the rectifier. Unfortunately my other set has been rewired to take a GZ32 so I don't have one to swap just now, perhaps I'll order one as a spare for future. Hope to report back further in a few days.
Best regards
Adam