Has the system worked correctly previously and now no longer works,or…
Is this the first time you have tried using PHD to auto guide?
From my personal experience, if the system has previously worked successfully:
- Either I have forgotten to plug in the auto guider cable to my mount so no motor movement/calibration signals are getting to the mount,…or…
- I have inadvertently unchecked the checkboxes to make the mount move in X and Y.
Cheers
Dennis