I have a bad tac 20 door operator board. I have replaced 2 other just like it and they worked fine. This one did not work.

Vertical Express said it was set up as a harmonic instead of a Linear and sent me a hyper terminal adapter and a couple manuals they told me I can change it, but I don't see where to do that. None of the parameters in the manual have a Linear vs Harmonic profile that I can see.

I have a laptop set up with the adapter as recommended by Vertical Express.

Any help would be appreciated.

I have the LD-03 Door Operator manual from Vertical Express & the Door Card Replacement Procedure for Card Series 6300PA_ & 6300ABN_