Space Shuttle Pinball with no Voice

jeff412

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Just picked up a Williams Space shuttle today, but the voice doesn't work. Anyone got any suggestions on what to check? I reseated the voice roms with no luck.

Jeff
 
i believe thats a system 9 like my sorcerer.you can read my posted questions on here what i tryed to fix problem.but cutting to the case do you have a hum.i did and it ended up being my u11 processer 6808 chip was bad
 
Yes there is a hum. Man if it was the 6808 that'd be great. I'll go change it real quick and see if that fixes it.

Jeff
 
i had nothing no speech or sounds.also try to turn the sound up and down from cabinate to make sure its not this switch also the one on the board one way is speech the other way is sounds.so its like a fader in a car.i like the speech louder than sounds.
 
I don't have speech, but I do have sound. When I adjust the balance, it just makes the sound louder. But I don't know when it's supposed to be talking, so I'm not sure when to adjust it.

Jeff
 
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Sounds like a speech board problem. I would start by re-seating the ribbon cable connecting the speech board to the MPU and possibly remove the sound board and re-seat the ROMs. After that you'll have to dig a little deeper and make sure the signals to the ROM are present, test the speech IC, etc...

Sounds like the pot is working based on the volume changing when you adjust it. Just hope it's not the "speech" IC because they are hard to find and you'll end up having to buy a whole speech board.
 
on the right bottem of you cpu there is a self test button.you can press that to here some of your speech and sounds and by doing the cpu self test on the coin door you will need a manual to know what numbers are what for speech and sound.if you dont get nothing there then it get more involved.there is also a speech chip on the cpu that could be bad but always try to reseat your chips frist.
 
With the balance turned all the way to the speech and the master volume turned all the way up and with my ear next to the speaker; I can hear the speech. I'm guessing that I have a bad amp for the speech?

Jeff
 
Hum on Space Shuttle

I had a hum on mine.
My fix was the caps on the main cpu.
On the bottom right of board are 5 caps. I am pretty sure the 1st and last cap is involved.
I changed both and the hum went away.
let me know what happens.
 
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