So I'm working on the soundboard in my Funhouse and am struggling with an intermittent issue and am looking for some guidance.

The soundboard did not work at all when I purchased the game. I noticed the tantalums by the amp were burnt up so I went ahead and recapped the whole board. All new electrolytics as well as tantalums.

I also replaced the amp itself because it was working intermittently as well.

I'm sure the amplifier circuit is working because if I touch the pins I can hear the feedback caused by it.

Here is the odd part. The soundboard doesn't boot up and give the boing. Now if I press on it a few times in the center the soundboard will boot up.

I know there has to be a loose connection or failing component somewhere on the board but I have no idea where to look or what commonly fails.

I haven't probed the board with my scope yet but plan on doing some signal tracing. I'm just looking for advice on where to look?

I can't see any obvious signs of damage on the board in the logic area.

What do you guys think?

I really want to get this up and running because i have a pinsound to use but it sounds like absolute trash so it's not even an option in my opinion due to the quality of the samples.

I've looked at all that and still have no idea where the intermittent issue is coming from.

I toned out the sockets and couldn't find an issue. I did push directly on the cpu and the board booted up so I think I'm going to replace that socket. It looks pretty ratty anyway. I can't find a 40 pin socket in my parts bin so we'll have to wait for the part man to deliver and I'll report back..fingers crossed.