(Topic ID: 181376)

F-14 missing sounds

By CadillacMusic

7 years ago



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Linked Games

#1 7 years ago

Our f-14 is almost up and going! I've got one interesting issue with it though: I think half the speech calls are missing. Sounds 00, 01, and 05 don't play. It's clearly the cpu board, because no sounds from 0-7 play with the roms removed. I also have no real sound when I press the sw1 test switch. I hear the very very faint sound of what I assume is the ...CVSD? going up and down. I'm not quite sure how one goes about figuring out what's wrong. I have leon's 11 sound test chip, but it doesn't really help in a situation like this. Any system 11 sound experts know what to do?

#2 7 years ago

Looks like this guy had same problem. Never posted results, but a few others chimed in. Maybe you can reach out to them

https://pinside.com/pinball/forum/topic/williams-f-14-missing-sounds-system-11a

#3 7 years ago

Well, nice to know I'm not alone with the problem, at least. I missed that post, so thanks! It's not going to do me any good anyways, because I've managed to render the board inoperable with the weirdest symptoms. I replaced the U10 chip, and now it takes a good 30 seconds for that chip to "warm up". It does this with all 6821's I stick in there, so it's not the chip. If I run Leon's test, the pia refuses to pulse at first, but eventually behaves itself. The other PIAs pulse right away, so it's something that affects that PIA only. It's long enough that the game won't boot. I've now moved on to another board, because that one was just waaay to weird to tackle. Thanks again, though.

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