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xdroccax
newbie
Reged: 01/21/09
Posts: 1
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Hi all.. We were recently given an old DS-114AT that came with an Autostar 494 controller. When we hooked the 494 up to our (old) ETX-90, it complained about wanting a "ETX Autostar". If we upgrade the firmware on the 494, will it be able to work with the ETX-90? Hate to spend the money on a 506 cable kit to find out it won't work. TIA
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yock1960
professor emeritus
Reged: 06/22/08
Posts: 980
Loc: SW Ohio, USA
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Others will know for sure, but I don't think you can upgrade the firmware on the 494; only object data, like tours, comets, etc..
Steve
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LXD75 GEM
Orion Starblast 4.5" Imaging Reflector
William Optics Zenithstar 66 SD APO
Meade DSI II OSC
Meade DSI III OSC
Orion Starshoot Autoguider
Televue Powermate 2.5x
Discovery 6" Dobsonian
Nikon Action Extreme 10x50's
Gallery
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rmollise
Post Laureate
Reged: 07/06/07
Posts: 4585
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Quote:
Others will know for sure, but I don't think you can upgrade the firmware on the 494; only object data, like tours, comets, etc..
Steve
That's right. There never have been any firmware updates available for the 494. You can use a 497 with a 494 scope, but NOT vice-versa.
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Uncle Rod
Rod's New Book:
Choosing and Using a New CAT
Available now!
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jgraham
Postmaster
Reged: 12/02/04
Posts: 6763
Loc: Dayton, Ohio
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The firmware in the #494 is not upgradable. If the scope you have is not in the data set then you can't use it. You should be able to find a #497 on EBay for about $100. You can also use a #495 with the latest firmware update which essentially converts a #495 into a #497 controller.
Just for yucks I'll check what my #494 says the next time I have my ETX-60BB set up as it has a #494 installed on it. The ETX-60BB uses a slightly different mount than the 90 so I wouldn;t be surprised if it would work on the ETX-60/70 but not on the 90/105/125.
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-John
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Homebuilt scopes from 4.25-16.5"
Meade LXD75-N6/SN6/SC8, DSX-90, ETX-60BB, ETX-125PE, DS-2130
Orion StarBlast, BinoViewers, Coronado PST
Rebel XT/XTi, DSI Pro (I, II, & III), DSI, LPI, Electronic Eyepiece, Phillips SPC900NC
Tasco 60mm Refractors
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daniela Bigatti
member
Reged: 08/19/07
Posts: 23
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The 494 works on the etx70 and on the DS, but will not work on the catadioptric etx's AT and newer. Not sure about the first generation of etx cats.
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