Re: Reactor sound board dip settings

Gottlieb games seemed to all have grounding issues. Their pinball
machines suffered terribly from bad ground design. On the pin games,
they sent their grounding through the slide on PCB edge connectors and
these had a habit of being intermittent. You may want to add a nice
solid ground braid wire to all boards to see if that helps somehow. Just
a thought.
Kurt Mahan wrote:

>I can tell you that my Q*Bert was incredibly touchy about its ground.
>I replaced the power connectors (crimped new ones on) and that fixed
>the flakiness I was seeing.
>
>Then of course the graphics debug jumper fell off the board and all
>my foreground sprites went away. That was fun for a while until I
>dug through the schematics and found the jumper mentioned. Doh!
>
>Kurt
>
>On Wed, Jul 21, 2004 at 05:27:25PM -0500, Tom McClintock wrote:
>
>
>>My Reactor main board seems to be quite finicky about it's applied
>>power. In fact, I'm getting partially garbled background sprites right
>>now because of it. I'm guessing all your voltages are ok though ;)
>>
>>
>>tom
>>
>>Joe wrote:
>>
>>
>>
>>>Here's where I'm at now..
>>>
>>>I plugged in a GV-105 (Krull) sound board I had lying around. Worked great
>>>(with Kruill sounds of course.) Hmm, odd. So, I went back to the Reactor
>>>sound board, nothing. After messing around for some time, burnt new roms.
>>>I made 2 sets, Q*Bert and Reactor. Tried the Rerwactor roms, nothing.
>>>Tried the Q*Bert roms, it works! Tried the Reactor roms, nothing. Tried
>>>Q*Bert again, works. Hmm.. Burnt a new set of Reactor roms, it works.
>>>Turns out the ROMS I was using were too slow. Who'd have guessed.
>>>
>>>So, now I have a working board and working sound board that work together!
>>>Then the video craps out. Now all the graphics are fine and the gameplay
>>>is fine except that the text is garbled as well as the corner chambers.
>>>So, off to trouble shoot that. Any ideas are welcome.
>>>
>>>JB
>>>
>>>
>
>
>

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Received on Fri Jul 30 02:06:50 2004