DG2020A data generator schematics

Does any one have or can tell me where to obtain copies of the DG2020A data generator schematics as well as pod details P3410 and P3420 [I have the standard manuals].

TeK US replied saying they didnt have details as the unit was built in Japan with SONY but I don't want to recycle the unit without trying to fix the problems seen [Clock Error code +++].

Any support will be very much appreciated.

I have checked the microfiche/manuals at the vintageTEK museum and we have no schematics for this model. I assume this was a Sony/Tek design and know of no repository for schematics. I have also made inquiries of former Sony/Tek employees with no results.