adjusting speaker level without original remote
I want to up the level on my rear surrounds in my setup, but the original remote for my Yamaha htr 5450 died about a year ago. I now use a kamelean 8 in 1. It has a pretty good code bank, but I can't seem to adjust the level of the rear speakers. The way I did it with the original remote was press a "tone" button, which would produce a tone in each speaker an you could then adjust the speaker's relative level. Last time I checked, it was some silly price to replace the remote, like $70 or something, and it was a crappy remote anyway. Any suggestions or am I just stuck?