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7800 Theory of Ops & T/S Guide


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#1 Blue Azure OFFLINE  

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Posted Mon Sep 16, 2013 2:45 PM

I looked but never found these Atari 7800 docs on the net.  This is a copy of the telex from 1984, but still readable.  With the XM release pending, it's a good time to start dusting off the good ole 7800 and make it run.  As the XM games aren't exactly compatible with the emulators, you'll need a working 7800, and soon.

 

The zip pkg includes the 7800 Theory of Operations, albeit somewhat simplified and refers to a schematic not included, but aa.com has the one page schematic complete; the 7800 Block Diagram, also simplified; and the 7800 Diagnostic Flowchart, a.k.a. Troubleshooting Guide.  This flowchart was obviously intended for newly-built 7800s, but you can still use it.  One comment:  NEVER drop kick your 7800 and throw it in the trash - there's some good parts in there!!!  Give it to me!!!  Gimme gimme gimme...

 

Attached File  7800 Atari Theory of Ops.zip   7.9MB   416 downloads

 

Enjoy,  ///BLUEman///

 

 

 



#2 Mitch OFFLINE  

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Posted Mon Sep 16, 2013 6:53 PM

Cool! It looks like part of the 7800 service manual. Too bad some of it's missing.

Where did you happen to find it?

 

Mitch



#3 gambler172 OFFLINE  

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Posted Tue Sep 17, 2013 11:35 AM

Hi Blue
great,will download tomorrow :)
greetings Walter

#4 Curt Vendel OFFLINE  

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Posted Tue Sep 17, 2013 11:42 AM

Blue - thought I sent you those doc's, I'll pull out the folder later tonight and scan them up for you and post so that there is a cleaner and complete set available.



#5 Blue Azure OFFLINE  

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Posted Tue Sep 17, 2013 4:02 PM

That's right it came from dumpster dive 7800-99.  I thought I had a photo of "the plunge" but can't find it.  I don't know, Mitch, was there a 7800 Repair Manual from ca.1986?  Shouldn't we post it?  I don't have it.  My 7800 works and it's XM-ready!!!  But is my XM ready for me?  :roll:  ///blueman///



#6 Mitch OFFLINE  

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Posted Tue Sep 17, 2013 6:28 PM

Curt, if you can post the complete file that would be awesome. :thumbsup:

 

Mitch



#7 Mitch OFFLINE  

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Posted Thu Sep 19, 2013 8:46 PM

Here's a part's list/BOM for the NTSC 7800 that I made a few years ago but never got around to posting. I was working on a silkscreen as well but never finished it. Maybe Curt's copy will have the official one. :)

 

Mitch

Attached Files



#8 Classic Pac OFFLINE  

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Posted Fri Sep 20, 2013 2:46 PM

This is so GOOD!!!

#9 Blue Azure OFFLINE  

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Posted Sat Sep 21, 2013 4:04 PM

BOMs away!!!  Thanks 2 Mitch.  I agree, this is great.  Who would have thunk it 30 years ago we'd be doing all this on the 7800 now?  I often wonder if GCC personnel are watching our "progress" on a machine design that must have died many, many years ago.  I think we're going stronger here than the 26 and/or 52, although there are still brilliant folks over there as well.  I think we have the edge with the publicized source lists and many disassemblies.

 

Leading to the equation...

 

:cool:  7800 > 5200 + 2600

 

Not to be nitpicky on Mitch, but the CR2 listed on the parts list is the Power LED.  It would be interesting to see if we can dig up a costed BOM so we know how much these parts cost in 1984 +/-, especially the memory devices.  Sometimes they were pricey and hard to come by.   ///blueman///



#10 Mitch OFFLINE  

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Posted Sun Sep 22, 2013 12:17 AM


Not to be nitpicky on Mitch, but the CR2 listed on the parts list is the Power LED.

 

Good catch there! I just posted an updated version.

 

If anyone finds any more errors please let me know.

 

Mitch






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