Hey Norm, cheers for the reply; The keypads(S) i have used both learn any Yamaha codes no problemmo, EXCEPT for the second zone commands for the new 650. The remote is enabled for second zone control (after you turn on the zone 2 amp) by pressing code set and then entering a yamaha specific number. Then you control zone 2 functions by first pressing the zone two button, which then puts the remote into '2nd zone mode' for ten odd seconds. nothing is emmitted, it just switches the remote to a different codeset - standard issue stuff..... What is this codeset, and why cant i learn it???