Oh my!

[monaghj]

I know that this is not a solution to the sound but rather a hack, but it would be quite possible to do. The first step is to put your own wav files on to a sound chip. Generally speaking you can set a single chip up to have 4 or more clips. Next you would disconnect the speakers and run them into a voltage comparitor circuit as a trigger. Anytime your machine would go to make a sound it would trigger the chip which would in turn play your recorded sound through the machine speakers. Since there are lots of different events on the pashilo you would trigger the playing of each wav file based on an "AND" condition. Ie Coin in (and speaker sound) would then trigger wav one, Coin out (and speaker sound) would then trigger wav 2. Wheel spinning (and speaker sound) would trigger wav 3. Certain lights only come on during bonus rounds would trigger wav 4. etc. The theory then being that you could use this mod on any system without losing its orginal theme and you could even just use a switch to flip between the natural sounds and the custom ones. Note I have not actually done this..

[delphicoder]

I know that this is not a solution to the sound but rather a hack, but it would be quite possible to do. The first step is to put your own wav files on to a sound chip. Generally speaking you can set a single chip up to have 4 or more clips. Next you would disconnect the speakers and run them into a voltage comparitor circuit as a trigger. Anytime your machine would go to make a sound it would trigger the chip which would in turn play your recorded sound through the machine speakers. Since there are lots of different events on the pashilo you would trigger the playing of each wav file based on an "AND" condition. Ie Coin in (and speaker sound) would then trigger wav one, Coin out (and speaker sound) would then trigger wav 2. Wheel spinning (and speaker sound) would trigger wav 3. Certain lights only come on during bonus rounds would trigger wav 4. etc. The theory then being that you could use this mod on any system without losing its orginal theme and you could even just use a switch to flip between the natural sounds and the custom ones. Note I have not actually done this..

I have thought of this as well. That is why I started studying the pic microcontrollers. One of the issues is turning the sound off. There are many times that a sound will be playing, and an event needs to stop it even though it has not finished. It seemed to me at this point I would be rebuilding the sound board and module all over again, when I have one sitting right there in front of me. Granted, I have not solved the mystery yet, but this option has been a fall back plan. Maybe someone who is more advanced in the microcontroller world will go ahead and do it? I know thye exist here, because they make their own credit mod chips to interface into the board you are making reference to (I always called it the casino interface board).

[monaghj]

Since your sound is being triggered by the voltage from the speaker leads. The abrupt end of your generated sound would occur when the orginating sound dies. This is why you want an AND circuit rather than just triggering it off of lights or reels etc. I applaud your effort to reverse enginneer the code on the chip, I just suspect that model differences won't make this an easy port between systems.

[delphicoder]

Since your sound is being triggered by the voltage from the speaker leads. The abrupt end of your generated sound would occur when the orginating sound dies. This is why you want an AND circuit rather than just triggering it off of lights or reels etc. I applaud your effort to reverse enginneer the code on the chip, I just suspect that model differences won't make this an easy port between systems.

I see what you are saying now. I will investigate it. I did not think to use the current to the speakers in conjunction with other currents. Great idea.