RE: Reactor sound board dip settings

The power on sound is part of the sound board's self test so that is
independent of the main board. Although the low voltage is a concern, it
sounds like your problem is with the main board generating the sound signal
or getting that signal to your sound board (since you verified the board
actually works by connecting it to a Q*bert main board).

Have you verified the data path from the final output gates on the main
board to the input gates on the sound board with a continuity check? Could
be a harness problem, unless you are using the Q*bert harness for Reactor
testing.

I would use a logic probe to trace the working signal on your Q*bert from
end to end and then go through the same thing on Reactor to see if you can
find a difference.

At 03:50 PM 7/13/2004, Joe wrote:
>Here's what I have going on.. The sound board does not generate sound
>other than at power on.
>
>The main board(s) work fine, as does the sound board in Q*Bert (with
>reactor roms tested.)
>
>The PS is putting out ~5v. On board this makes ~4.3v.
>
>Is it possible that there is not enough voltage to send out the proper
>signals to the sound board? The 74ls377 is fine.
>
>Thanks,
>JB
>
>________________________________
>
>From: owner-rasterlist@vectorlist.org on behalf of Joe
>Sent: Tue 7/6/2004 1:21 AM
>To: rasterlist@vectorlist.org
>Subject: RASTER: Reactor sound board dip settings
>
>
>
>Anyone know what the dip switches on reactor are supposed to be set to?
>
>I have a working main board here and a working sound board. But, I can't
>seem to get the working main board to cooperate with the working sound
>board.. So, just a hunch that it may be dip switches. All the sound
>tests pass when connected to a working Q*Bert main board.
>
>Thanks,
>JB
>
>
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--
Franklin Bowen (Franklin@Bowen.net)
http://fmbbowen.com:39353 
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