This aftermarket ground free (optional) phono / RCA PCB is a new part that is a direct replacement for the Technics part number SFDP122-22 and fits the Mk2, Mk3, Mk4, Mk5 & Mk6 etc versions of this industry standard deck.
This version of the circuit board has the **OPTIONAL** internal ground modification thus allowing connection to your mixer without the need to connect the separate ground cable.
**OPTIONAL** - Simply solder points 1 and 2 together for internal ground or leave them unsoldered for standard / connected ground wire option - best of both worlds.
NB Aftermarket part not supplied by Technics