Ok I found the schematics on another post of koreth.  http://music-electronics-forum.com/t16417/  I was going to post them, but I think maybe I will just point to the other post. You have to be a member of that forum to see them as well.

For some reason I cant get your schematic to display. It keeps saying the file is corrupted. Would you please post it again or give me a link where I could get a copy. I have this amp and was also thinking of trying some modding. schematics would be a great help thanks.