[Startrek (Martin)]

I’ve just got my 7 year old SW 12” Goto Dob up and running after 5 months of ripping my hair out
My scope had multiple issues but the first issue was “ Both Axis no response “
Jumped on Cloudy Nights, Stargazers Lounge etc etc for clues.
This is what I did …,
Upgraded the firmware on my V5 handcontroller ( see attached )
I didn’t upgrade the motor firmware as I couldn’t find the upgrade for a 12” Goto Dob on SW website , so I didn’t do that !!
Replaced the power supply ( Powertech 12V 7.5amp power adapter)
Then I replaced the handcontroller cable
Then I replaced the motor cable ( RJ45 ) from the Alt drive to the Azimuth drive.
Cables and cable connections are a common issue with is warning “Both Axis No Response”
Also check for mould and corrosion on all connections too ( internal and external)
I even pulled my handcontroller apart and cleaned all the tactile points etc..

Finally after all this was done I powered up the scope and at least got it up and running , however the next issue was scope would not change speed in Azimuth when HC changed from default Rate 9 fast to lower speeds say Rate 5 to Rate 2 , it stayed at Rate 9 fast speed even though the handcontroller read the correct rate.
Replaced handcontroller with new
Replaced Az motor board with new
Cleaned all contacts
Checked supply voltages
Still couldn’t find the source of the problem. I even disconnected the encoders which disabled the scope , so plugged them back in again.
Skywatcher ( Graeme ) and Testar ( Adriano ) were very helpful !!
In the end had to buy a new Base unit
Scope is working like a dream now after 5 months but at a cost of $2,300 and endless hours in the garage.
My post regarding my issues is in this section 4 or 5 posts previous to yours.

Maybe try the HC firmware upgrade and replacement of cables plus check connections first and foremost. Before throwing money at it

Good luck

Martin