MS. Pacman no sound

goodnight144

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I picked up this full size ms. pacman from a craigslist ad yesterday, they said when they listed it 3 weeks ago it was playing blind. When I got there to look at it it wouldn't do anything when we plugged it in. So I talked them down on it and got it. When I adjust the volume I can hear the speaker buzzing, but no game noises. I want to get this thing going again but before I tear into the monitor I want to make sure the pcb is still good. Any suggestions?



p.s. it is pretty clean on the inside with no corrosion, but it does have an upgraded power supply. Any chance it could have gone bad?
 

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Is the tick sound only when a game is playing or all the time? Sounds like one of the two sound proms is not working. 1M and 3M. Make sure they dont have any broken legs and reseat them. If you turn up the volume pot does the tick sound get louder?
 
Yes the tick does get louder when I turn up the volume. If I press the red switch in the top right hand corner on the board it stops while it is held in. I pulled 1M and 3M and reseated them, no legs were missing and it didn't change anything.

I'm still working on trying to fix the monitor, which I'm sure if the screen is doing something once it's fixed will be helpful in getting the boards working.
 
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