Re: Sidam Asterock wont coin up

yes +23v active high is used otherwise i wouldn't have been able to
trigger test mode or the inputs as read through the ports...

but thanks ;) Sidam never did things easy did they :)

Andrew Welburn
http://www.andys-arcade.com

On 12/10/2012 12:33, vernimark wrote:
> Remember buttons and coins for asterock are not grounded but connected to
> +23v
> Hope this can help
>
> -----Original Message-----
> From: owner-vectorlist@vectorlist.org
> [mailto:owner-vectorlist@vectorlist.org] On Behalf Of Andrew Welburn
> Sent: venerdì 12 ottobre 2012 13.02
> To: vectorlist@vectorlist.org
> Subject: VECTOR: Sidam Asterock wont coin up
>
> hi all..
>
> I have a really odd problem here with a Sidam Asterock pcb that just
> wont coin up, let alone start.
>
> In test mode, i can activate the L and R coin switches and hear the
> 'beep' verifying that the cpu can 'see' the coin switches being open and
> closed. All other inputs also beep in test mode correctly.
>
> In my fluke 9100 i read the input port addresses and found that
> 'Center Coin' was jammed on, this is an input to a mux'er that is left
> floating on Asterock as the pcb only has inputs/tracking for Left and
> Right coin inputs. When i tied this floating input to ground, the center
> coin was no longer jammed on. All other inputs verify working on my
> fluke completely normally (my test program is for Atari Asteroids) This
> verifies the test mode operation in that the game can see/read all the
> inputs correctly. Asterock test mode doesn't seem to care if this input
> is floating or not. It wont coin up with this input tied or left floating..
>
> The game still refuses to coin up... Asterock has no 'free play' mode,
> so unfortunately i can't just put it in freeplay mode and hit start...
>
> Does anyone have any insight into how the game code coins up? Is it
> different to Asteroids? how can the test mdoe read the coin input but
> not register credits in-game?
>
> help! :)
>
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Received on Fri Oct 12 07:43:42 2012