Hi John Any news /answers to your Carver TFM cutting out? Seems I have the same problem with mine. Only cuts out for a fraction of a sec though when volume is asked for! On return it hits hard! My Amp is a TFM 45 I also have a bulging cap ! So it is sitting on the bench waiting new caps and parts to bring it back.
I have been told a recap is in order for mine. I am sure their is a list of parts to replace on these aging High power amps to bring up to spec and return reliability! Dirty or faulty relay can cause cut out? Then bias and bench. Checking DC V is always a good start. I will have to wait for a Service manual as i look for answers. Good luck with yours!.