Hi to the group.
I have an LX200GPS-8" that makes a loud howling noise when slewing (GOTO) between objects.
It occurs only in the DEC section, and only when slewing with the "up" arrow button. I have cleaned, re-lubed the worm and main gear, and adjusted the set screw for the proper mating of the same gears.
Otherwise, the scope operates well, and GOTOs are fairly accurate.
Does anyone have ideas on what may me causing this noise?
I appreciate any help. I also posted this on the CN forum, but there are many additional experts here as well.