Re: New to the list

Hello, and welcome..

I myself am new to the vector, (well arcade actually) scene. I've only seen
a space war never played or worked on one before. Pat won't let me have his.
:(

Have you been to

http://andysarcade.de/spacewars.html

There is some information listed there, you may have already seen some or
all of it already. The schematics they have listed are unfortunately the
same ones you pointed out. :(

There does seem to be some on Ebay, but I'm sure they are probably just
print outs of what is online.

I'm sure some others will chime in, I think Tom still reads these emails.

Kevin

On Sat, Jan 9, 2010 at 3:06 PM, Fabrice GIRARDOT <f4brice@gmail.com> wrote:

> Hi everyone.
>
> My name is Fabrice. I'm 36 years old, living in France.
> I just subscribed to this list.
>
> I'm currently trying to repair a SEGA vector PCB.
> Game is called "Space Ship" and is an exact clone
> of Cinematronics's Space Wars.
>
> There is no output sent to the X-Y screen.
> My oscilloscope says that the /RESET signal is periodically
> fired. I understand all the meaning of the word "difficult"
> when it applies to the CCPU troubleshooting ! ;-)
>
> I use to post all my arcade activities to a french-speaking
> forum called "gamoover".
> Here is the WIP topic for my SEGA game :
> http://www.gamoover.net/Forums/index.php?topic=20677.0
> You'll find there some pictures of the cabinet, screen & PCB.
> SEGA did choose to design a unique board for both logic & audio.
>
> I can seen important glitches on some of the E14 PROM data bits.
> http://www.gamoover.net/Forums/index.php?topic=20677.msg298794#msg298794
> Does anyone know if its a normal behavior for this chip ?
> Sega is using a MMI 6331-1J.
> Maybe address bus is changed on clock's raising edge and data bits
> are used on clock's falling edge... In this case, it would be OK.
>
> My master reference for this WIP is this document :
>
> http://arcarc.xmission.com/PDF_Arcade_Manuals_and_Schematics/Space%20Wars.pdf
> Unfortunately, schematics scanning is not as good as I need it.
> For some signals, it'ss hard to read this so small hand writting.
> Is there any better scan of schematics available ?
>
>
> Regards,
>
> --
> Fab
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Received on Sat Jan 9 17:49:42 2010