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Old 04-09-2024, 09:15 PM
Startrek (Martin)
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Startrek is offline
 
Join Date: Dec 2017
Location: Sydney and South Coast NSW
Posts: 6,667
Problem with SW 12” Goto Dob

Due to the recent Gail force westerlies on the South Coast , I had to make a quick 2 day trip down to my holiday place where 2 x 5m trees had been uprooted, luckily no property damage. Spent all day with a chainsaw cutting it all up and a couple of loads to the tip.
As it’s a short trip I decided to wheel out my 12” Goto dob and do a bit of visual observing tonight even though seeing was poor under my bortle 3 skies ( I haven’t used the dob for nearly a year )
Commenced a 2 star alignment and chose Formalhault as first Star , slewed up to the vicinity of this Star using default 9 rate then proceeded to fine tune my centering using rate 3 speed. This where my problem started…..,
Rate 3 or slow would work on the Up and Down buttons but the Left and Right buttons remained at Rate 9 speed even though the Synscan display showed Rate 3. Tried rate 2 , 4 and 5 and experienced same problem with Left and Right buttons , Star wizzed back and forth past crosshairs and rate 9 speed. Parked the scope and shut down.
Took the Synscan HC inside and performed a Firmware update connected to my laptop ( Firmware Version 4.41.00 ) as this HC is 8 years old and has never been updated or cleaned ( it’s the first V5 series )
Also pulled the HC apart and cleaned the tactile rubber moulded contact pad and contacts etc..

Tried 2 star alignment again same issues

Also tried scope in Easy Tracking mode which tracked at Sidereal ok

Sounds like a new Synscan HC is required ??

Advice , experiences and comments most welcome
Cheers
Martin

Last edited by Startrek; 04-09-2024 at 09:31 PM.
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