Hi, i'm trying to make my Onkyo BD-SP809 working using Nevo SL remote + Nevo Connect + Nevo serial cable.
In the same System i'm also using an Ada Suite 7.1HD and a JVC XLA-70 both by serial without any issue.

How indicated in official Onkyo documents, setting ares:
9600 baud / 8 data bits / 1 stop bits / no parity / no flow control  in ASCII                                                                                
An example command
!7PWR01[CR] (tried also !7PWR01)
(Set System On)

or

!7PWR010x0D

but no one are working.
Any suggestions?