Sorry, i should have mentioned were using DM_OutPut, not HDMI? In all installations.
DM Output to Digital Link is how its wired; my CEC serial signals are only present on the DM Outputs CEC transmit and received. This setup is working on the 150's, but strangely not on the 350?
I was just hoping someone else may have encountered this and/or has recommendations that I may have missed?
thanks again
Bryan