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Curt Vendel

Atari "TONG Schematics finally Released

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After 35 Years... The Schematics for the Atari 1450XLD "TONG" have finally been discovered and made available to the community. The Atari 1450XLD page on Atari Musuem has been updated:
 
 
The larger set of the 1983 1450XL schematics will also be scanned and posted hopefully by the weekend.     1400XL schematics (nice clean scans, not the very dark hard to read ones that Best used to sell) will be going up soon as well.
 
Also on the 1450XLD page are the schematics to the Atari Parallel Disk drive controller...
 
More 1090XL stuff coming soon as well...
 
 
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Very cool, Curt, thanks for sharing!  How many 1400XL/1450XLDs are actually out there?  Man, it would have been so damn cool if these systems had actually seen the light of day, as well as the 1090XL...

 

 ..Al

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Awesome!!  Thank you Curt!!!!    I just have one question....   Since the 1090 was never released, why does the CO61636 PSU always say it works on the 1027 and 1090?  Why not add the 1400 and 1450XLD to the list as well?  Just curious....

 

Edited by scotty

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3 hours ago, Curt Vendel said:
After 35 Years... The Schematics for the Atari 1450XLD "TONG" have finally been discovered and made available to the community. The Atari 1450XLD page on Atari Musuem has been updated:
 

 

So that's what the 48 pin socket is for... CGIA!

 

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The tech docs are fascinating, especially this one:

 

http://www.atarimuseum.com/ahs_archives/archives/pdf/computers/8bits/1450docs.pdf

 

image.thumb.png.3e1a8d5eb77ca11e8fb8f9bf77014527.png

Well, damn. 


Engineering was clearly being stretched pretty thin:

 

image.thumb.png.2835384b0da838a02ba29cf386b83883.png

 

"3600" is the 7800 game console, then under development in conjunction with GCC, along with its own (costly to develop!) MARIA custom 48-pin graphics/sprite engine.

 

image.thumb.png.70c7f73e130cd6d0b2eaf9738dc8acd2.png

 

Wouldn't it be great to find the other, oh, 145 or so missing sets of pilot plastics? And the remaining 20 + boards unaccounted for? :P 

 

SO MUCH GOOD STUFF HERE! 

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Unfortunately this stuff tends to get scrapped when a project gets cancelled. And unless someone raids the dumpster in time, it disappears forever. I know this first hand from a place I used to work for that threw perfectly good and very expensive stuff away to use as a tax write-off.

 

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12 minutes ago, mytek said:

Unfortunately this stuff tends to get scrapped when a project gets cancelled. And unless someone raids the dumpster in time, it disappears forever. I know this first hand from a place I used to work for that threw perfectly good and very expensive stuff away to use as a tax write-off.

 

Yep, I know. Just day dreaming.

 

There are further notes in that same document beyond the ones I quoted about the pilot plastics and boards. They were actually in-hand at Atari at some point in early 1984. *sigh* 

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