[g__day (Matthew)]

David,

So its very consistent - just wrong...

The battery sounds find - and I'm glad to hear you took the right precautions with the soldering!

I forgot to ask - is tracking fine? If you are polar aligned and you get to your target does it keep it centred well? I expect it shouldn't but will not be surprised to hear it does. Tracking is just real time pointing - and your pointing model seems to be confused - for no fault of your own.

I think it is definitely time to see if you can find someone with an SS2K and see if your unity can run their mount correctly and vice-versa - to isolate the fault to cabling, mount or controller.

I don't like that some goto's had wierd track or unrequested slews - that is exceedingly strange and needs to be isolated and resolved.

Slightly beyond my knowledge - if you were to remove the battery completely - I believe the the hand controller still power on and operate correctly once all parameters were re-established. A pain in the arse but could allow you to do more diagnostics.

I would say join SS2K and SkySensor2000 Yahoo Groups and post your questions and the background data shared here with that user base and you will have a few hundred more experience folk on your side. Whilst I also ponder what is next.

Matthew

PS

This is totally wrong - but what the heck - try changing the sign of the Lattitude from negative to positive, restarting the controller so the hemisphere change takes affect and see if gotos are affected in any (hopefully positive) way. Then revert back to -ve lattitude and reset again and see if the behaviour changes.

Playing in my mind are two scenarios - somehow the location data which must be Southern Hemisphere is confused - or there is a incorrect feedback loop somewhere (a short in wiring, dirty voltage or an optical encoder with muck on it). I pondered would flipping the polarity on the Lattitude trip something and get it to reset correctly!