All Ortofon cartridges have a colour coding of the terminals, indicating red and green for right channel respectively hot and ground terminal. White and blue for left channel respectively hot and ground terminal. Green terminal will always be used for grounding the cartridge housings or motor-system, whenever connected inside the cartridge.
We recommend to connect lead wires to the cartridge and headshell before mounting the cartridge on the headshell. Please remember correct orientation of the leads. Ortofon SH-4 headshell and Ortofon cartridges' terminal PINs diameter is 1.2 mm, whilst Ortofon headshells' PINs diameter is normally only 1.0 mm.