Xevious: no ground explosion SFX

adamzero

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My Xevious runs perfectly, but when I destroy a ground target, there's no accompanied sound. (BOOM!) All other sounds seem fine.

I'm guessing this is just a cap replacement on the board somewhere? Has anyone else had this issue and fixed it/know the location of the cap(s) in question?
 
Well, in addition to the missing ground explosions, now the explosion sfx when you die is gone, too.

Figured another bump was in order.

I know Zaxxons have the same problems over time (certain sfx, mostly explosions) fade/disappear. There's a simple cap (row) replacement solution for that listed in the Zaxxon entry here...
but I'm wondering if anyone knows a similar fix for Xevious...
 
Bump....

Well, the two main boards don't have much to replace in the way of caps... And though the few on them look easy enough to replace, I'm leaning more towards this being a chip issue.

Does anyone do work on Xevious boards?
 
I don't work on them, but from working on galagas (which is also a namco game) it uses a namco custom 54xx series chip to create the explosion sounds - it could be that chip, or some of the related circuitry. If your getting everything but the explosion sound, that's where i'd start looking.
 
I don't work on them, but from working on galagas (which is also a namco game) it uses a namco custom 54xx series chip to create the explosion sounds - it could be that chip, or some of the related circuitry. If your getting everything but the explosion sound, that's where i'd start looking.

Xevious is Atari, innit?
 
Xevious is Atari, innit?

Namco, the Atari games that use those custom chips (DigDug, Pole Position, and Galaga for Midway) were initially Namco.

EDIT/SIDENOTE: Given the history of any sockets those curse'd customs touch... make sure it's sitting in a good socket... because I know on my Galaga, Pole Position, and Dig Dug those sockets are shit.
 
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