Looking for Lunar Lander schematics

From: Joel Rosenzweig <joel.rosenzweig_at_verizon.net>
Date: Wed Jan 01 2003 - 23:25:17 EST

I'm looking for a PDF of the Lunar Lander schematics. Spies doesn't have
one, does anyone here have one available?

I'm trying to troubleshoot a video problem in the board's X output stage.
I've double checked with a scope, and found the problem to be on the game
board. The X output in the left 1/3rd of the screen is behaving badly. The
vectors are squished on the left hand side and the right hand side of the
left third of the screen where the fuel units are displayed. There is
spotty coverage of stretched vectors connecting the squished vectors within
this region of the screen. My best guess at the moment is a stuck low order
input bit to the AD561.

If anyone has a location to grab the schematics, or has an idea of what the
problem really is, send it along.

Thanks and Happy New Year!

Joel-

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Received on Wed Jan 1 20:26:11 2003

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