VECTORLIST - The Mailing List For The Technical Discussion of Vector-Based Arcade Games

July_1998
Re: Asteroids CPU repair problems


From: John Robertson ( )
Date: Tue Jul 07 1998 - 11:52:45 CDT


Hi David!

What are the symptoms currently? Do the 2114's run hot? I just replaced
ALL of them on an Asteroids board, and it worked aftword. They were ALL
dead! Only other problem with the board at that point was a bad 74ls174
for the thump thump sound...
Have you built a NOP for that cpu? Then checked with a scope for proper
address count?

John :-#)#

John :-#)#

David Humphrey wrote:
>
> Does anyone have ANY input on what might commonly (or uncommonly)
> go wrong with an Asteroids CPU? I'm still trying to fix this one, and it's
> a pain. I suppose if I had a Cat Box, I could get somewhere.
>
> Say, there's a thought. Did the Cat Box project ever get off the ground?
>
> Ace
> ---this signature removed as a result of the ridiculous culture
> pervasive in the "political correctness" movement of the 21st
> century. Under which, lawyers and politicians, greedy for
> money and full of their own inflated eqos, sought to attain
> such at the expense of freedom of speech, common sense,
> and most any form of humor...---

-- 
 John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9     
 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)  
 mailto:       
        "Old pinballers never die, they just flip out."


HOME