I have both manual parts for the CG5011. Here's part 1. I can't attach part 2 because the file size is too large. But if you give me your email via DM I can send it to you.
I also did a video series on my YT channel repairing mine which includes the following:
-Fixing the current loop
-Replacing the dual encoder (variable shaft broke off) with two separate encoders.
-Going down a rabbit hole chasing an issue with the DC amplitude modes.
Part 1:
Part 2:
Part 3:
Part 4:
Excellent piece of equipment and fairly easy to calibrate.
-Frank