Re: Frogger - 8255 Question

From: Mark E Davidson <Burbs1_at_concentric.net>
Date: Fri Jan 05 2001 - 15:48:23 EST

Sometimes the simplest things are the biggest problems so Im going to toss this
idea out. Any chance you switch the wires for the coin switch from the normally
open side to the normally closed? (I did this once, bashful grin)

-=Mark=-

Tim Tewalt wrote:

> Hi,
>
> I'm new to the list, but have been collecting since 1994. I was never a big
> contributor to rgvac, but did meet and deal with a lot of great people from
> that newsgroup. Maybe some of you have migrated here? I recognize quite a
> few names from the vector list I joined a while back.
>
> Anyway, I recently picked up a Frogger for my soon to be wife. It worked
> fine until I cleaned up the coin door wiring (along with some other
> repairs), which was kind of a mess. Now, it chugs through the attract mode
> just fine, but won't coin up.
>
> +5V bus looks quite good. Control panel inputs to the 8255 look OK. Reset
> and CS lines look OK. I think the address lines are OK. I have no previous
> experience with 8255's, but from what I've read, they're configured and
> controlled by the Z80 (which I swapped since it was socketed).
>
> Is there something else I should check before clipping out the 8255 and
> replacing?
>
> Thanks,
>
> Tim Tewalt
> Colorado Springs
>
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Received on Fri Jan 05 12:53:38 2001

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