My first post here, so please forgive me if I use some odd language. Straight up I am in need of the Nexstar wisdom! I recently purchased a Nexstar 4 GT (It says GT in the hand controller at least) and I have run into a few problems. It is an old telescope, I didn't realise how old until I started to dig and discovered why the previous owner was being so coy about when she purchased the telescope!
Firstly I noticed with its first evening out, that the vertical slew would occasionally cut out. Then a few days later, going through settings on the hand controller, the display fadded out. At this point I was pretty distressed as I thought the hand controller was dead. I then discovered that I could still slew in all directions and when I did this, the display returned to life! I decided to do some research and found this Youtube clip: https://youtu.be/oP685HcFRYQ This gave me some confidence to dismantle my Nexstar 4 and clean connections in the base, as to me at least, this seemed a likely cause. But, after doing so and failing to take notes on which way connectors were orientated, I now have zero vertical slew. Everything else seems to work just fine; display and horizontal slew. I have attached a photo of the current, post clean circuit board found in the base. Ironic that I did not take a photo before detaching the connections to clean them!
Thank you in advance for your observations, suggestions and hopefully solutions.
P.S. The two connections in question are the connection at the bottom of the image and to the right. The other large connection was lifted, cleaned and placed back how I found it.
Edited by darkmatt'r, 20 April 2019 - 02:20 AM.