Protek 9205 Function Generator

[Lee Leduc]

I have an old non-working Protek 9205 Function Generator. Looks like one of the current sources is not working. I'm looking for a service manual or schematic so I can get it working.
I plan to donate it to the local High School electronics club or better yet, use it to show the kids how to troubleshoot and repair it. I emailed the manufacturer but got no reply. I can find the user manual online but no service manual or schematic.

Any one know where i can find a service manual or schematic?

Thanks.