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Thread: PCM Sound & Stability Fixes Multicarts - 120 in 1, 138 in 1, 161 in 1 and others.

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    PCM Sound & Stability Fixes Multicarts - 120 in 1, 138 in 1, 161 in 1 and others.

    In summary, the SDRMPX and SDPMPX bypass caps (47pF) make the biggest difference to PCM sound on all these carts, but its worth doing all of the mods imo.

    This has fixed sound problems in many games across all the carts below. The 161 in 1 in general suffers less from the PCM issues, but it IS affected. Pulstar is now fixed on my 161 in 1, as well as Puzzle Bobble, and a few other games which had random sound issues.

    138 in 1, and 120 in 1
    https://www.dropbox.com/s/nx0fhk0eim...rtfix.zip?dl=0

    This also fixes Pulstar on the 161 in 1 for me as well =D The 161 in 1 needs traces scratching (like the 138 in 1 does). The 120 in 1 seems to have 2 pads for the caps already.
    161 in 1 (150 in 1 also?)
    https://www.dropbox.com/s/kdf1bd2fqo...n%201.jpg?dl=0

    Here's the link to the thread that lead me to the fixes. http://www.neo-geo.com/forums/showth...ards-PCM-sound I've posted this seperate thread due to the title hopefully being more useful. People might never look into the original thread. Hope someone finds this useful!
    Last edited by GadgetUK; 02-25-2015 at 10:47 AM.
    My YouTube channel contains some MVS repairs and stuff:-
    http://www.youtube.com/user/GadgetUK164

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