The schematic is on the bottom right of
http://www.spies.com/arcade/schematics/atari/AstDlx1B.TIFF
My guesses would be that your EAROM is dead (they didn't have very many
write cycles) or that the circuit to generate the -30 no longer works
(replace the caps?).
Steven Winslow
<winslow@earthlink. To:
net> cc:
Sent by: Subject: VECTOR: Asteroids Deluxe PCB - won't save high scores
owner-vectorlist@sy
nthcom.com
01/05/2001 03:45 PM
Please respond to
vectorlist
HI!
I've got another question I wanted to ask. My AD board won't save the top
3 high scores. What is the fix ? Where and what chip is responsible? Is
it a battery-backed up SRAM or something ?
Thanks again !
Steve
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