it’s quite simple, Smoke for Mac ONLY support SDI output NOT the analog component out. So in order to use an external broadcast monitor i have the option of using SDI-1 out or SDI-2 out from the K3, again the component out is not functional.
Since my PVM20L5 does not have the HD-SDI input optional board, i need to feed it Component HD…therefore the need for a SDI to analog converter.
Btw, the K3 does not have analog audio out, only AES, you get 2 channel of RCA output if you buy the optional K3-box.