Yes, screens cycle continuously, so it might be the watchdog timer. I'll
check that.
The only test mode I saw was on the sound board. Does that also check ROM
and RAM on the CPU board? Or - is there another test mode on the CPU board?
The next step is testing the ROM images.
Also, I read somewhere that VBATT needs to be present. Does anyone know if
that's true? The batteries are dead...
Thanks.
Rich
On Fri, Sep 4, 2009 at 5:43 AM, James R. Twine <jtwine@jrtwine.com> wrote:
> 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!
>
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Received on Fri Sep 4 08:10:24 2009
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