Re: Star Wars/Wells Gardner 6100 Problem

From: Franklin Bowen <fbowen_at_balt.checkfree.com>
Date: Wed Feb 03 1999 - 10:58:50 EST

Does the two diodes attached to the X and two diodes attached to Y mod make
you safe from this type of problem (described in Gregg Woodcock's XY FAQ)?
I've been thinking about doing this for some time now because MH and SW
base explosions and Tempest flying to the next level apparently cause a LOT
of stress (I can HEAR it).

"Dennis Shirk" <dshirk@godfrey.com> on 02/03/99 10:36:18 AM

Please respond to vectorlist@mcfeeley.cc.utexas.edu

To: vectorlist@mcfeeley.cc.utexas.edu
cc: (bcc: Franklin Bowen/MD/CheckFree)
Subject: Re: Star Wars/Wells Gardner 6100 Problem

So this sounds familiar, huh? Doh!

Would it be a good idea for me to start tracking down another 19" WG, or
should I try to rule out possible other problems first?

BTW, if it is the problem you mentioned below, would the whole monitor have
to be replaced, or is that something that can be repaired?

Thanks!

Dennis Shirk
http://gameroom.godfrey.com

>For what it's worth, this is what killed my monitor when I was *first*
>working on the kits-- hence the warning about switching with the game
>on.
>
>Clay's techy idea on what can happen:
>
>I think you can switch and still have the code land in a segment that
>refreshes the watchdog, but the vector generator crashes.
>Max-deflection for very long = dead monitor. Someday I should probably
>redesign the kit to have the bank-selection switch go into a PAL and
>then have the PAL yank reset for a few clocks after the switch changes
>states. I'd want to *really* fix those nasty old 2212 NOVRAMs at the
>same time though by replacing it with some kind of EEPROM, so the
>project gets larger and I keep putting it off...
>
>-Clay
Received on Wed Feb 3 09:57:20 1999

This archive was generated by hypermail 2.1.8 : Fri Aug 01 2003 - 00:30:51 EDT