thanks dave. i remember when i had my yammy rvx659(??) i dl'ed codes fro a different yammy avr to see if the discretes would work, and NONE of the commands work. and now my old commands from the 659 wont work on his 6190, which is why i thought it was picky. we did try the closest looking model number to no avail. i guess we'll have to keep trying different model numbers. i wish yammy had a data base to access like pioneer does!!