Guess what... the Alt-Az stuff almost works. Ok, not really. The dec motor runs in both directions but the Az motor only ran in one direction. And a few other things were wonky.
While I was waiting for the wrong parts to come in, a few years ago, I ordered some parts so I could mount one of my Canon DSLR's to the telescope. Then I ordered an Orion thin off-axis guider (you have to go off axis... they said so in the movie Contact) and an Orion Starshoot Autoguider. I figured I may as well use the AG port since it was there.

I should point out that while I have a good understanding of terrestrial photography (still shoot a 4x5 and develop my own film, plus have too many DSLR's, yes that's possible, all vacations are for photography, etc), I am clueless when it comes to astrophotography. How hard can it be right... just plug some stuff in, click some buttons, poof... Hubble images. Uh... WRONG!!
Which leads me back to where I was around this time last year. Since the mother board and controller didn't work I decided to put my astrophotography stuff together. I still remember sitting on the couch looking at a pile of metal and electronics with no clue how it should go together. I have adapters and gizmos but I don't know if I have enough adapters and gizmos or even if they are the right adapters and gizmos. I need some help figuring all that out.
I ordered the right board today. BTW- if you have an older Celestron mount CG-5 AGT, Celestron doesn't make or sell parts anymore. I found the power supply (which I didn't need but thought I should stock one) and mother board on a site called Agena Astroproducts. They were the only site that carried the power supply and their mother board price was significantly cheaper than anyone else (I didn't say cheap). I seriously considered abandoning the mount in favor of something newer but it's barely been used and for my needs it should be fine.
I need some time to get familiarized with the telescope drive with eyepieces again before I consider putting a camera on it. I know it's not the greatest mount for astrophotography but it's what I have and it'll surely be useful for teaching me something. To the point (finally), I need someone to look at my little pile of electronics and aluminum and tell me what to do with it.
I collimated the telescope after the failed board replacement. About 15 times


I have a small selection of eyepieces-
Celestron 1.25" 2X Barlow. Ultima series
Celestron 1.25" 5mm Ultima series that for some reason has a blue filter on it. I'm the guy that put it on there but I don't remember why
Sirius 1.25" Plossl eyepieces
7.5mm
10mm
17mm
25mm
20mm 1.25" Plossl but no idea who makes it
2" Scopetronix Maxview 40. The eyepiece is 2" but it fits into a 1.25" focuser
I'll pop back in here once I get my parts in and have gotten familiar with the telescope again