I have been working on some modifications to the Studio G Neve 5316. The board came from BBC Scotland and did not have any schematics. While it is certainly possible to figure out a lot of the signal flow without block diagrams, it is sort of like driving across country without a map – you know where you start and end, but you have to find signs in between.
I posted on Geoff Tanner’s vintage Neve forum at http://auroraaudio.net/forums/ and frequent contributor Mr. Blake Devitt was able to provide some helpful documents. The forum did not handle large images well, so I volunteered to host them here for anyone who needs them in the future.