Recenly i bought used RCX400 12", with dead motherboard, but i found (from astroboot.eu) new motherboard, and now everiting is worked, only focuser don't show data (freeze at 0.00mm).
All cables checked, everything seems to be fine, but focuser show 0.00mm position. Motors work fine. Restore to default collimation work fine. Calibrate wocus work fine.
I attach screenshot from MyScope with focuser data. Version of Autostar II updated to 2.2I
Hope someone can help me