I made a 600dpi scan of the second page only, which produced an 8MB jpg file, and uploading that 8MB file into the gallery here three times produced the same error message "Upload skipped (Error code 500)" each time - although it should have worked ?

So instead I uploaded the 600dpi second page to Photobucket, along with the other scans, which I hope can be found at:

http://s1280.photobucket.com/user/Tiptoeturtle/library/MacUser%20Pedal%20to%20the%20Metal

I am not sure, but it could be that working from the top down the jumpers are:

Jumper

No jumper

Jumper

No Jumper

No Jumper

Jumper

Maybe someone with the installation manual can be found.