cgx going haywire

[seanpius2020]

Hi,can anyone help me out here.I have a cgx mount that wont go to the switch position,i have tried everything with it including replacing dec and ra motors,motherboard which burnt out and also the small board for the ra,tried setting hand control to factory settings,can anyone give me a bit of advice here besides dumping it into the skip.

Sean

[wornish]

Think we need a bit more info before suggesting help.

What happened when and what you have done since ?

[seanpius2020]

Hi Dave,what happened at first was i started getting a burnlng smell coming from the mount and it started moving erratically ,i had to change the motherboard it was badly overheating,after i did that the mount wouldnt go to the switch position in RA.I recently changed both RA and DEC motors also but it didnt change anything for RA still wont go to switch position,DEC goes to proper position,mount runs off a regulated power supply,went to factory settings on hand control even bought a new hand control incase that was the problem.

Sean

[newbie alert]

Switch position??

Home position...index marks??

Edited August 31, 2021 by newbie alert
Added info

[michael8554]

Hi Sean

Not a CGX owner, but as I understand it:

You position the mount into the Home position.

And since you have changed so many parts, I believe you will need to set this as the Home position in the handbox.

Then carry out a Star Alignment.

If the mount will then not return to the Home position when commanded, and carries on past in RA, then there is a RA encoder problem.

But I would have thought that should have prevented a successful Star Alignment.

Michael

Edited September 1, 2021 by michael8554

[seanpius2020]

Hi Michael,i will try as you suggest when i get some clear skies.I dont think it is the encoder because i bought two new motors and even swapped them around when the RA wouldnt go to switch position,the DEC works as normal on each motor,hopefully clear skies will come along soon.

Sean.

[michael8554]

You can test the Home position suggestion anytime, even indoors

Then pretend to do a Star Alignment, you don't need stars.

Michael

Edited September 1, 2021 by michael8554

[seanpius2020]

Michael,already tried it like that,still no joy.

Sean.

[newbie alert]

Some people park their mount like that, if they have a low roll off roof, do you use software, APT, NINA, SGP  etc?

So is the mount accurately finding stars It's just the home position ( or switch as I think you're calling it)

[seanpius2020]

Hi,its when i first turn on the mount it says press twice to go to switch position which is what you have to do  when starting,then it just slews way past the switch position until it can go no further,but when i press the back button then press go to home it goes to the home position with no bother.When i am using celestron CPWI you have to move scope to switch.