Searching the Stanford Research SR650 schematic diagram

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Hi everyone !

Sorry in advance if my english isn't perfect.
I'm a studient who currently work on a project with a programmable amplifier-filter from Stanford Research, the SR650. However the device is provided by my university but the manual is not present. I was looking for the schematic diagram of the SR650 to include it in my report. I would like to know if it was possible to find it in any way other than to buy it back.

Thank you very much.

[PlainName]

Dave did a repair here but the partial schematic he linked to doesn't seem to be available now. Seven years ago, but maybe he never clears his browser cache and it's still lurking in there somewhere...

[coromonadalix]

EDIT :  Found partial (no logic) sr640 schematics    not sure it help

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Thank you very much