[Sursound] assistance with Soundfield Mk5 rebuild?

[p***@tiscali.co.uk]

Hello,
any owners of Soundfield Mk5 out there with tech info?
A lineup procedure or schematics would be helpful, I'm trying to
complete a rebuild project. Lots on the net on the Mk4, nothing on the
mk5...
thanks
Pete Guppy
electronics tech at ATC loudspeakers...