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

  1. #276
    Timid Neo Newbie

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    does anyone have any tips on how we would go about seeing if the bridging of the two pins was successful? i still get resets but perhaps i may have did it wrong.
    can an unsuccessful bridge or shortening cause damage onto other components along the chain? arcade psu popped the last time i used the cart but maybe this was just pure coincidence as my motherboard and supergun are all still fine.

  2. #277
    Divine Hand of the UniBIOS
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    It makes a big difference on a 4SLOT.
    THE UNIVERSE BIOS ( MVS / AES, and now also for CD )
    www.universebios.com. Also on facebook, please like http://www.facebook.com/UniverseBios.

  3. #278
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    I am buying the material to enhance my 138 in 1 cartridge. I would like to know if the 100 nF SMD capacitors voltage rating can be 25 V instead of 50 V. The 25 V are cheaper

  4. #279
    Edo Express Delivery Guy
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    25V is fine.

  5. #280
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    Hello, i have 161 in 1 revision 2, i opened the cart and i found 2 ceramic caps, i think for fix sound, i already did stability fix for revision 2, that bridge between 2 cart pins...but...
    The sound is shit...in a lot of games i have problems with sounds, i think all of them, problems like...pitched sound, channels that sounds and interrupt sounds, sounds losted in games...is that normal? Is a lot noticiable. If anyone have 161 in 1 Rev.2 please let me know if there is available different sound fixes, i use a 4 Slot MVS board and after i do stability fix bridge the cart works ok, responds ok to press 1P 5 seconds and exit to menu, and i dont get hangs with cart, dont know but the sound is a pain in the ass...Mine bios in the 4 slot Base MVS is original Japanese Bios.
    Last edited by Dhampird; 01-05-2019 at 12:45 PM.

  6. #281
    Robert Garcia's Butler
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    Quote Originally Posted by Dhampird View Post
    Hello, i have 161 in 1 revision 2, i opened the cart and i found 2 ceramic caps, i think for fix sound, i already did stability fix for revision 2, that bridge between 2 cart pins...but...
    The sound is shit...in a lot of games i have problems with sounds, i think all of them, problems like...pitched sound, channels that sounds and interrupt sounds, sounds losted in games...is that normal? Is a lot noticiable. If anyone have 161 in 1 Rev.2 please let me know if there is available different sound fixes, i use a 4 Slot MVS board and after i do stability fix bridge the cart works ok, responds ok to press 1P 5 seconds and exit to menu, and i dont get hangs with cart, dont know but the sound is a pain in the ass...Mine bios in the 4 slot Base MVS is original Japanese Bios.
    Did you fit the 2 x 47pF capacitors at positions C5 and C6 (top board)?
    My YouTube channel contains some MVS repairs and stuff:-
    http://www.youtube.com/user/GadgetUK164

  7. #282
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    I bought myself one of the 161 cards, when I put it in my c1 it delates all saved highscores I made with normal games. Is this an issue what can be fixed?

  8. #283
    Divine Hand of the UniBIOS
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    The MV-1C can only save highsores for 8 games.
    THE UNIVERSE BIOS ( MVS / AES, and now also for CD )
    www.universebios.com. Also on facebook, please like http://www.facebook.com/UniverseBios.

  9. #284
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    Quote Originally Posted by Razoola View Post
    The MV-1C can only save highsores for 8 games.
    Sure, I know that, but all 8 games from the bookkeeping are gone when I insert the 161 cardrige

  10. #285
    Robert Garcia's Butler
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    Quote Originally Posted by TK86079 View Post
    Sure, I know that, but all 8 games from the bookkeeping are gone when I insert the 161 cardrige
    The 161 in 1 zaps the BRAM saves! It's just how it works!
    My YouTube channel contains some MVS repairs and stuff:-
    http://www.youtube.com/user/GadgetUK164

  11. #286
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    Ok, not so glorious.
    Thanks for your help.

  12. #287
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    Quote Originally Posted by TK86079 View Post
    Ok, not so glorious.
    Thanks for your help.
    Yeah, it is annoying! It's better to use the 138 in 1 with DIP switch mod imo as that doesn't delete the saves. Or if you've got the extra cash get a Neo SD.
    My YouTube channel contains some MVS repairs and stuff:-
    http://www.youtube.com/user/GadgetUK164

  13. #288
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    I think I use a different MVS for this thing. I do not play it very often, but it still has some games I miss as originals.

  14. #289
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    Ok, I finally got around to adding all these caps to my 161-in-1 and tested it out and so far everything works great, but Is there a definitive list of what to test? I know some games have bad sound like Strikers 1945, some crash like Pulstar (but I don't know where it crashes) and previously MS3 had messed up graphics that are now ok, but I would like to go through and 100% test every known problem with the 161-in-1 cart and see how many these caps fixed.

    Soldering these was pretty easy, seems like this is by far the quickest and easiest 161-in-1 to fix.

  15. #290
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    i finally got my 161 in 1 mvs cartridge

    rounded corners label, rev 2 pcb with real connectors on both sides of ribbon cable, just like the picture in this post: https://bit.ly/2k4yrcV

    all caps came populated. stock stability fix, no need to mod it manually.



    i just had to remove cap c3, as it was said to cause tiny sound.

    puzzle bobble still has some crackling sounds. sometimes it gets almost muted. seems to be unsolvable.
    Last edited by lufeig; 09-07-2019 at 12:21 AM.

  16. #291
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    Hi, I'm having issues with these mods, a started a thread about it, but maybe I should have just posted here?

    From my thread here
    Quote Originally Posted by someitalian123 View Post
    I'm having issues getting the 138-in-1 dip switch mod to work. I applied GadgetUK's stability fixes, and the prebuilt dipswitch purchased from nornor1. I am unsure if I damaged something while trying to apply GadgetUK's fixes, or if I simply used the wrong capacitors. None of the voltage values for the required capacitors were listed, only their uf values were, so I just picked random voltages. I am unsure if this makes much of a difference. All of the graphics are corrupted and there is no sound, I recorded a video of it.


  17. #292
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    I threw out the 138 in 1 and attempted the mods on my 120 in 1, things seem to be working fine but I did notice some minor graphical glitches on pulstar when hitting the continue screen. How eletrically sound is my 120 in 1 now? Since the 120 in 1 doesn't have a "c12" pad for the capacitor next to the voltage regulator I just soldered the 100 uf cap onto the pins of the regulator it's self. Also because there are two separate sets of header pins and 2 separate altera chips on the 120 in 1 board I added a 47uf cap for each set, I don't know if it makes a difference or not? Are these mods I did ok? I know they are a little messy, but are they electrically safe?

    20200229_214758.jpg
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    20200229_214947.jpg
    20200229_215027.jpg

  18. #293
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    Quote Originally Posted by someitalian123 View Post
    I threw out the 138 in 1 and attempted the mods on my 120 in 1, things seem to be working fine but I did notice some minor graphical glitches on pulstar when hitting the continue screen. How eletrically sound is my 120 in 1 now? Since the 120 in 1 doesn't have a "c12" pad for the capacitor next to the voltage regulator I just soldered the 100 uf cap onto the pins of the regulator it's self. Also because there are two separate sets of header pins and 2 separate altera chips on the 120 in 1 board I added a 47uf cap for each set, I don't know if it makes a difference or not? Are these mods I did ok? I know they are a little messy, but are they electrically safe?

    20200229_214758.jpg
    20200229_214904.jpg
    20200229_214947.jpg
    20200229_215027.jpg
    i have the same board. can you explain me what were iusses before mod and if you fixed it, please?

  19. #294
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    Quote Originally Posted by retronerd View Post
    Hello! I have a new version of the 161 in 1 cart. have done your mods but i get crackling sound in puzzle bobble? Here is my cart!




    what is the pc8,pc6,pc4 and pc2 caps capacityon the 3 Nin1 board?
    what is pc7,pc1,pc2 and cable caps capacity on the other board?
    did you had sound iusse before modding it?

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