Intermittant loss of signal to one channel I have the service manual for these classic record decks but there's very little on the tone-arm. Does anyone know how to remove the collar that locks the standard cartridge headshell plug/socket to the tone-arm. The headshell is no longer locked tight, the collar and headshell can move slightly on the end of the tonearm and only forcing the headshell in a (in to deck centre ) direction will make reliable contact to the sprung contacts inside the tone-arm part of the connection. Or any other advice ?
-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on