RE: Spy Hunter help

   The flashing part (background/border objects) with a tight/small
crosshatch pattern sounds like normal startup. Does it keep cycling
that over and over again? If yes, is the CPU being reset right shortly
after the crosshatch? It may be watchdogging...

   You did not say either way, but the game does have a test mode. Did
you flip that switch to see if it will enter test?

   From your description, my first thought is a ROM issue...

   Peace!

-=- James R. Twine, (spam@jrtwine.com)
http://www.jrtwine.com
http://www.deletefxpfiles.com
http://www.checkfavorites.com

> -----Original Message-----
> From: owner-rasterlist@vectorlist.org [mailto:owner-
> rasterlist@vectorlist.org] On Behalf Of Rich Gopstein
> Sent: Thursday, September 03, 2009 9:53 PM
> To: rasterlist@vectorlist.org
> Subject: RASTER: Spy Hunter help
>
> A neighbor recently got a Spy Hunter upright which is not working.
> I get
> to fix it...
>
> The monitor is ok. I reseated all of the socketed chips and
> interconnection cables. The power is clean and the voltages are
> ok.
>
> On powerup, the display cycles rapidly between a few non-game
> screens
> including a crosshatch pattern. No sounds, nothing game-like
> appears. No
> blinking lights on the CP.
>
> From the little bit of documentation I found, it isn't clear if
> the CPU
> board even does any diagnostics. There appear to be diag switch
> settings
> on the sound board, but not the CPU board.
>
> I'll have to dig out my EPROM programmer to check the CPU board
> EPROMS.
>
> It's a pain to test since the CPU board is sandwiched in between
> the
> video and sound boards. Does anyone know if the game will run at
> all
> with only the CPU board connected? That would make testing easier.
>
> Any other suggestions would be appreciated.
>
> Thanks!
>
> Rich
>
>
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Received on Fri Sep 4 05:44:06 2009