Recent content by Hatsune Mike

  1. Hatsune Mike

    NAC Splitfire: JAMMA streaming solution

    Finally got a status update from Mouser - basically, I need to receive these parts, then mail them to the factory so they can do turnkey assembly. It has almost half a year waiting for these parts! Holy shit! Other parts are estimated to arrive mid-may, but I might just have them send that...
  2. Hatsune Mike

    Nanao MS8-29FSG sparks when plugged on & screen doesn't show any game images.

    I'm well aware of the H.S. Lim pot, and wouldn't have posted what I wrote if I didn't mean it. You are looking at a ~0.4mH horizontal winding on the MS8 yoke while the MS9 yoke is about 0.33mH. The MS9 has a greater range of adjustment than the MS8 overall, but this particular situation can...
  3. Hatsune Mike

    Nanao MS9 Horizontal Size not Filling Screen

    Somehow I missed the original focus of the thread. On an MS8-29 yoke, the MS9-29 will never be as wide. The corners are the last thing to adjust because they have some headroom from the parabola applied using Q508; away from the corners, the width is already at its limit. You can cheat and raise...
  4. Hatsune Mike

    Nanao MS8-29FSG sparks when plugged on & screen doesn't show any game images.

    I don't know how you are spending $1000 when your monitor breaks MS8-29 yoke "works" with the MS9, but the width will forever be a little lower, and for some games with narrow rasters (Ninja-Kun II, Air Buster, etc) they will never fill the screen properly without pincushion distortion, even...
  5. Hatsune Mike

    Nanao MS8-29FSG sparks when plugged on & screen doesn't show any game images.

    That looks like a normal MS8-29 yoke to me, but it's been a while.
  6. Hatsune Mike

    Damaged my Nanao MS9-29. Help needed

    Naomi doesn't support 24k. In connecting the N/W jumper to TPE you may have damaged the HOT, or the protection circuit. TP3 connects to U501, and I believe is supposed to be a test point for checking the protection. That signal runs down by U550 as well, which may have become damaged.
  7. Hatsune Mike

    Universal JAMMA versus kit

    The factory has had my designs under review for a very long time now. I suspect they are themselves dealing with a very long pipeline of work.
  8. Hatsune Mike

    Nanao MS9-29 enhancement hacks

    In a bit I'm going to put together a really simple shopping list for populating the G1 section and enhance the guide with more pictures.
  9. Hatsune Mike

    Nanao MS9-29 enhancement hacks

    I did a writeup on a few things you can do to get the most out of your MS9, including Placing a negative voltage on G1 like the MS8 for improved sharpness, and Modifying the chassis to run at 31KHz for Naomi, etc. Stay sharp!
  10. Hatsune Mike

    Nanao MS9 Horizontal Size not Filling Screen

    If the pincushion adjustment and width controls basically don't work replace Q508.
  11. Hatsune Mike

    Dishwashing PCBs

    Using the dishwasher is a moron method. Setting aside damage from water / contaminent ingress, it's massively overkill, and also I don't feel great about putting something full of lead solder in the same dishwasher as I'd use for dishes. If your PCB isn't too dirty, then just wipe parts with...
  12. Hatsune Mike

    Nanao ms-2931 buzz (fixed!)

    Fridge magnets are not the right material. You need a small bit of permalloy insulted on the end of a strip. For these strips I just make my own.
  13. Hatsune Mike

    MS9-29 bizarre interference / noise

    Fixed! This chassis was entirely missing the X capacitors in the primary section. Transplanted them from a dead parts chassis, and it's rock solid now. no more 60Hz ripple, no more switching power interference. Original Post: I'm stumped with this chassis. No matter what I've tried, there's...
  14. Hatsune Mike

    Bubble Bobble Free Play patch

    Got this going today:
  15. Hatsune Mike

    NNC Toshiba PF colors unbalanced

    If the colors bleed when the gains go up, first turn the biases down for all channels, and bring up the flyback Screen / G2 control until you can see the black area, then back off a bit. This might give you more usable range, in case the streaking you are seeing is peaking during...