Re: Sega G08 coin details

The CoinUp pdf from the site says
--the coin pulse has been shortened to around 10ms for Sega vector games--

I've seen people put a 'credit switch' on the Sega coin doors and they always require a quick flick instead of a leisurely press.

Kerry

---- Mark Jenison <jenison@enteract.com> wrote:
> Looks like it's already been done...
>
> http://www.onecircuit.com/node/41
>
> Mentions specifiically it works for Sega vectors...
>
> ----- Original Message -----
> From: "Zitt Zitterkopf" <zittware@hotmail.com>
> To: <vectorlist@vectorlist.org>
> Sent: Thursday, December 29, 2011 1:02 AM
> Subject: VECTOR: Sega G08 coin details
>
>
>
> I know Sega Star Trek has a freeplay rom hack available; however, at this
> moment, VectorLabs isn't supplying freeplay roms with their devices. I
> haven't spent enough time with the multi-vector boardset to determine how
> easy/hard it would be to convert to Freeplay.
>
> I'll be taking my Star Trek Captain's Chair to Texas Pinball Festival this
> year; so I'll need a free play method.
>
> Right now I'm considering doing a 555timer circuit to "credit up" when the
> start button is pressed.
>
> Does anyone have any details on the coin detection circuit in the G08
> designs?
> I looked at the schematic and it appears there is a SR latch made out of
> NAND gates which feeds another latch which drives XINT to the cpu.
>
> I was wondering if anyone had some details on how long the "coin in" pulse
> is so I can simulate it with a 555timer.
>
> I can measure it myself; but am out of town at the moment. Sitting bored in
> the hotel room which could be used for design rather than tv watching.
>
>
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Received on Thu Dec 29 10:02:57 2011