what would cause a cart to have sound errors

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OldFoo

what would cause a cart to have sound errors

Post by OldFoo »

I have a PJ naomi cart that has sound problem, but only in some parts. It's just on some levels, but everytime and only the first match....it's like a sound gets stuck and loops. It happens again with a different sound on another stage in the game. I've only noticed it on 2 lvls so far. Different sounds both times. Also, when the "loading 31k mode" or whatever comes up on the screen during boot up is a light red and not white. (but when I loaded the game up this last time to record the sound, it was white lettering like normal.) There was never a color error when the game starts, but these two sound issues are annoying. Is there anyone that's experienced anything like this? Is there anyone that can fix it?



Here's a vid for the sound...you can hear the weeee-oooooh-weeeee-oooooh



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OldFoo

Post by OldFoo »

Have you checked if all voltages running to the Naomi are correct?



I am having difficulty hearing the sound error in your video. Is it the 'whining' noise in the background?
OldFoo

Post by OldFoo »

one or more bad mpr mask roms could causes this.



Do the roms all pass good?
OldFoo

Post by OldFoo »

Cageman wrote:Have you checked if all voltages running to the Naomi are correct?



I am having difficulty hearing the sound error in your video. Is it the 'whining' noise in the background?


Yes :) Like a weird alarm or something.



I have a sun psu running it all and haven't had trouble with anything else. I'll check the voltages tonight.




AndyGeezer wrote:one or more bad mpr mask roms could causes this.



Do the roms all pass good?


I don't know why the first one doesn't say good....but the rest do.









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OldFoo

Post by OldFoo »

bump :)
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