[Edward Huggins]

Ah I see, so the Radio (Tuner) does function well and you now say you are getting a good output via both the amplifiers? Then the fault may well be in the switching that selects the phono/gram input or faulty connections back to the pick up cartridge. Again, I suggest you signal trace starting at the pick up cartridge connecting pins, then working backwards to the phono switching. At this stage we have not yet established if the cartridge is still working.