Turntable has no ground lead but the tonearm cable has one doesn't it? However the arm may not have electrical continuity to the plinth where the bearing carrier is mounted; my MK 4 doesn't.
I ground the bearing carrier (which grounds the platter via spindle contact) with a separate small stranded ground lead which is crimped to a ring-tonge lug, which is fastened underneath one of the bearing carrier bolts/nuts. Ground that to the same place you ground the tonearm, typically at the phono stage or preamp's grounding stud on the back.
I ground the bearing carrier (which grounds the platter via spindle contact) with a separate small stranded ground lead which is crimped to a ring-tonge lug, which is fastened underneath one of the bearing carrier bolts/nuts. Ground that to the same place you ground the tonearm, typically at the phono stage or preamp's grounding stud on the back.