Re: Tempest Highscore issue

Well So far I've swapped out all the proms, ALU's Pokeys, and the ram.

I've also replaced all of the column 3 chips, which are the ones connected
directly to the ram.

The game will hold high scores for 1 power up. If the game get's powered
down a second time, it looses the highscore initials. It will either loose
all bookeeping, or keep it depending.

Seems like the ram is getting corrupt, and rewriting certain sections for
what ever reason.

Still no solution.

Kevin

On Wed, Aug 24, 2011 at 7:16 AM, Kevin Moore <talon.k@gmail.com> wrote:

> Still having this problem. All voltages check out, replaced 2055
> interconnect headers reflowed. Swapped AUx with another and problem didn't
> follow.
>
> Kevin
>
>
> On Mon, Aug 22, 2011 at 8:52 AM, Kevin Moore <talon.k@gmail.com> wrote:
>
>> Got a strange problem with a Tempest. For what ever reason, once you place
>> a high score, then reset the machine or put it in self test it will erase
>> the initials, but leave the score. It always defaults to EJD which is the
>> normal 1st place name for highscore.
>>
>> The Address and Data lines appear to be working properly.
>>
>> Kevin
>>
>>
>

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Received on Mon Aug 29 17:27:46 2011