[Techtoolslist] Atari System II tech info?

[John Robertson]

Has anyone found any service info on the Atari System II boards beyond 
the basic schematics and patent #4930074 filed in 1986 (thanks to Jed 
Margolin for the link - http://www.jmargolin.com/patents/atpats.htm)?

I have a Paperboy that only shows about 8 'Motion Objects' instead of 
the 39 that are supposed to be there. All other tests pass fine. Motion 
objects are blocky and continuously break up.

All the 6116s test out fine on the video board, ran them through my 
standalone RAM tester (RAMTek).

The patent looks like my best shot - printing it out and read that.

Thanks,

John :-#)#
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