sme 3009 low volume

I suppose its very possible the internal tonearm connections have worked loose,,..Anything is possible while if the turntable was shipped to you.. I had an issue awhile back similar and found that the tonearm wire I ( internally ) was almost totally broken away from the connection..Once I re-soldered it back on it was fine..

Sounds like a good excuse to upgrade the tone arm's wiring. is it a fixed or removable head shell model?

Denon shell un known model I purchased this at an estate sale--I'll order new wiring, would you recommend upgrading the output connection to rca as well? Thanks very much!