Need help with a Yamaha natural sound stereo amplifer AX-550 RS SER. # M114431SU

I was cleening the input wiper brushes and cant figger out haw to make the wright conectiones on the wiper brushes. If anybody has a digitaly scaned scimatik for it, may u send them to me? e-mail: mastodon_2@hotmail.com But any addvice will be apreciated.