I hope that you are well and staying healthy.
Here’s my story.
I bought an LX200 ACF - 10" F/10 around 2005. At the time I thought that it would be an intuitive instrument to use and I confess that I really didn’t understand how to use it correctly. I never could get it to align properly. As a result of my stumbling around learning the scope there were many times the cords got wrapped in the mount and, to my shame, the worm drive gears were likely clicking away.
The scope was stored for years for various reasons. When I got it out of storage in 2017 the DEC function would not work at all and I replaced the entire DEC motor assembly (parts ordered from Meade). Still no luck aligning the scope.
Fast forward to 2020:
I ‘properly’ rediscovered my love for astronomy last year, and have spent a lot of time figuring out how to set up, level and align the LX200 using all the resources on the web. I had some limited alignment success in ALT/AZ mounting and wanted to try basic astrophotography, so I put the LX200 on a Meade X-Wedge.
Currently, the mount runs smoothly in RA and DEC at all rates. The direction of movement is correct. No noise or weirdness.
I’m struggling to understand the DEC and RA readings I am seeing on the Autostar II and that’s why I think I may have a problem with the RA and DEC drive encoders or calibration.
As I understand it, on the Meade X-Wedge in Polar Home configuration, with the OTA parallel to the forks, the DEC should read 90 degrees. My Autostar II reads 0 degrees. When I replaced the DEC drive did I reverse a connector?
Also, with the forks orthogonal to the X-wedge I believe that I should see a RA value of zero. My RA only reads zero with the forks canted 45 degrees or so. Plus, the viewfinder and Telrad are on the top side of the mount when they should be on the bottom (or hard to use side) in Polar Home mode.
Attempts to polar align the LX200 lead to wild pointing errors, or stars selected that are below the horizon.
I don’t see any instructions in the Meade downloadable manuals on recalibrating the DEC or RA encoders. I am running the 4.2i firmware on the Autostar II.
Any advice would be much appreciated. Here are some pictures of what I am seeing.
Many thanks in advance,