triple bypass on MD2 VA1 wierd background music, 3BP problem ?

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    evilsim
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    https://www.dropbox.com/s/3go1qd5djawntqv/MD2_VA1_3BP_umm.mp3?dl=0

    Above is a MP3 file I recorded from the MD2, Street Fighter 2 audio.

    I bought about 6 triple bypass boards (from VGP website) and only this one is being weird. Please let me know if anyone has any ideas on how I can fix this. I have triple checked my install. This is about my 5th 3BP install (after many megaamp installs in the past) and the first problem I’ve ever had.. The RGB works great, audio is wierd.

    Using ASIC YM3438 and have confirmed resistors are correct for that model.

    Thanks in advance for any help. Happy to provide pics of install but shouldn’t be necessary as its all been re-checked with multimeter.

    EDIT: I just installed another of exactly the same (3BP into a different MD2 VA1) and it works just fine…

    • This topic was modified 4 weeks ago by evilsim.
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