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  1. Hatsune Mike

    FS: Armed Police Batrider Ver B.

    This is only sort of half true. The A1010 and A1020 FPGAs are early polyfuse FPGAs, and do not use non-volatile storage (e.g. Flash) to store their configuration (which has a data retention rate of like ~20 years in automotive graded parts, and likely less for consumer). Instead, the...
  2. Hatsune Mike

    FS: Armed Police Batrider Ver B.

    I saw it, but it is not uncommon that offers are placed through a PM, and as a range was indicated in the first part I thought it would be worth clarifying. Everyone must feel like a broken record saying this sort of thing, but if that's the price of Batrider these days, it blows my mind.
  3. Hatsune Mike

    FS: Armed Police Batrider Ver B.

    What was the sale price?
  4. Hatsune Mike

    cave

    This was mine, I drew this not shitposting
  5. Hatsune Mike

    FS/FT: Toaplan Fixeight

    Board was kind of banged up when I got it, it's cleaned up fairly well. I replaced the input custom with one created by @SnakeGrunger . The board runs well with loud sound and clean video. Toaplan staff became cave staff you know Looking to trade for Ghox (joystick or spinner version, does not...
  6. Hatsune Mike

    Lei Shen Zhuan / Battle Garegga hack - Help / Advice needed

    IIRC there is a 74HC IC near the CPU that does reset, and I've had it go bad multiple times.
  7. Hatsune Mike

    cave

    cave
  8. Hatsune Mike

    cave

    box
  9. Hatsune Mike

    cave

    cave
  10. Hatsune Mike

    NAC Splitfire: JAMMA streaming solution

    The RGB output has 75 ohm resistors in series to match 75 ohm termination on the other side (capture card, PVM, etc). The video is DC coupled, and you should not need to consider adding capacitors or resistors. The recommended use case is to plug it in directly to an OSSC's VGA input port and...
  11. Hatsune Mike

    Lei Shen Zhuan / Battle Garegga hack - Help / Advice needed

    I have seen one dead 68000 ever, so I would say do not remove that unless you've exhausted literally every other option. Even then, that one was defective in that it started out sensibly, then spuriously jumped to nonsense addresses, which was identifiable on a logic analyzer. I've never seen...
  12. Hatsune Mike

    Games that don't have Attract Mode during Free Play

    Guwange: https://github.com/Mikejmoffitt/guwange-freeplay/releases/tag/v1.0.0 Guwange Special: https://github.com/Mikejmoffitt/guwanges-freeplay/releases/tag/v1.0.0
  13. Hatsune Mike

    Help: Nanao MS9 sync problem

    Thanks - I had been reading the labels upside-down. I've been tracing out a new schematic in KiCad working off of a PCB scan I did a while back, but having this original one in better quality than the other crummy ones of the past is a huge improvement. Thanks for scanning that.
  14. Hatsune Mike

    Help: Nanao MS9 sync problem

    Trace the signal for H phase adjust, it might be floating if the knob doesn't do its thing properly. Second-to-rightmost pin on remote board --> J436 --> R556 --> Q220 --> Q551? (sorry, hard to read what I have here) --> Pin 2 of the LA7853. There are some other passives related too.
  15. Hatsune Mike

    MS9-29 image shacking.

    root cause could be irregular HV; lower HV = wider image. What both previous posters have mentioned are things that would either leak or limit current to the anode, which is the path by which electrons return from the gun. I wrote in my MS9 page about some basic maintenance and one thing you...
  16. Hatsune Mike

    Repair log: DoDonPachi Daifukkatsu

    symptom: didn't boot, bought blind from eBay cause: main RAM was bad; replaced, board started up perfectly time spent: 30 minutes; 20 fixing it, 10 selling it afterwards having a chuckle at pearl-clutchers losing their minds that someone would buy a board that looked like an easy fix & sell
  17. Hatsune Mike

    Universal JAMMA versus kit

    My goal was to get Splitfire out of the way so I can properly focus on this without burning myself out. I'm back on working on a version that reduces this to one cable through input multiplexing. However, the unavailability of microcontrollers due to supply chain issues makes this a little...
  18. Hatsune Mike

    NAC Splitfire: JAMMA streaming solution

    That depends on if the HDMI device will accept 15KHz horizontal scan rate and with composite sync over the HDMI port. In theory, it could work, but in practice I would not expect it to. The El Gato ones are famously picky as it is, as I remember. The OSSC is a recommended prescaler. I use mine...
  19. Hatsune Mike

    NAC Splitfire: JAMMA streaming solution

    It's live. I've updated the OP. You can get it here.
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