The backlash is set via servoconfig.exe

Bob wrote:

This weekend I decided it was time to setup the backlash. I read the Help
file but I am still a bit confused.

Don answered:

Yes you first move to center the target with the UP and LEFT buttons, then
"Click Here" using the ServoConfig Backlash tool. Then move the scope/mount
with those same buttons far enough so that pressing the DOWN and RIGHT buttons
moves the target back to the center position, then "Click Here" on the backlash
tool.

Rememder you have to use a fixed target - not any star. Polaris works OK
otherwise use a recognizable terrestrial target like a distant tree branch,
pole, rock, mountain feature, etc.