KO2 EP-133 Sync to V10 Timing Clock

Hey Guys,

I'm trying to sync the clock from the V10 to Teenage Engineering's Sampler; KO2 EP-133.  This is so the KO2 BPM keeps synced in time. Using a Din Midi cable to Jack from the back of the V10 to the "Sync In" on the KO2.  Have tried all the instructions online.  The issue seams to be sending the clock out from the V10, the KO2 isn't picking up the clock signal.  I've got the Midi On, on both devices. And Start/Stop buttons activated. Tested the cables. Also tested the KO2 with another device, which worked.  Any ideas would be amazing as I've tried everything from the instructions!

Both V10 & KO2 have the latest firmware update.

Many thanks, Scott