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Dragon Ball Z 2 Super Battle sound error

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LuisArrufat

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Mar 9, 2026
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Hello, I have a Dragon Ball Z 2 Super Battle with a sound problem. After locating the sound error in the logic section and checking ROMs, RAM, and other components, I found the error in the accompanying PAL.
I have searched the internet for the dump of this PAL and I can't find it on the websites I know.
Does anyone have this dump? Or know where to download it?
Thank you.
 
Hey,

Can you take a picture of the board?
I have one here from @Mitsurugi-w (though I'll need to check with him as I think the PLDs are soldered in).
 
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Hello. I tried flashing a Gal16v8 and I'm still having the same problem. I think the dump you sent me is correct, but it's still the same. It seems to me that the PAL output signal reaching the CS pin of the Oki M6295 isn't correct, which is why it's not working with the sound ROM. I'm lost. Thanks anyway.
 
Are you sure the YM2151 is good and not sending garbage on the data bus? The 6295 could be bad too.
 
Hello, I am sure that the M6258 and the YM2151 are correct. The problem is in the CS input of the M6258, which comes directly from pin 13 of the PAL. I have compared that signal with the oscilloscope and it is faulty compared to many others from other boards that work correctly. On the other hand, I have made a reading of both the original PAL and the GAL that you sent me as if they were a 27c020, and there are differences between both, but neither works correctly.
 
Thanks.
There are similarities with the bootleg and differences too. Weird many of your outputs are a fixed 1 (high).
Are pins 14, 15, 16 and 17 connected to anything on your PCB?
 
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