Athearn Genesis Factory Mrc Sound - Dynamis Command Problem

[brian n]

I've seen this question asked, but without a response in other threads. I have a genesis F7 second generation sound unit that does not respond well to f1-f12 and limited function above that. is there an update for the dynamis to make them play well together, or could something be wrong the the unit. other engines work well on the system.
Thanks for your help,

Brian

[ABC]

No updates that I know of.

[the Bach-man]

Dear Brian,
I'd try the F Unit with another system to isolate the problem. Do other Genesis units work on the system?
Thanks!
the Bach-man