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... and that Cave game is ofc course "Goldfish Scoop" (金魚すくい) on CAVE PC hardware Note the "CV2000XP" on the IO board. Thought CV1000 was cool? Well this is TWICE as cool. I will never play this, so made a case for it. PC is held to the bottom plexi with screws through a 3d-printed spacer...

Quick and nice repair. Bought a "Mahjong Lady Hunter (JUNK)" PCB from YAJ recently, and hey, sometimes stuff marked as junk does in fact not work. This is a pretty cool Mahjong Game which uses a very unlicensed Batman that fights bad dudes with Mahjong. Was stuck at startup with this screen...

The trimpot for 5v adjust in my Astro City power supply has gotten real weird lately. Anyone know what the trim-pot resistance is for it? Would be nice to have one ordered before taking out the PSU and opening it up.

Picked up this sick multi (spool printer). Bambu Lab P1S. Goes fast like sonic hedgehog 🦔 . Enclosed so can print sick ABS without cancer in lungs. Seems pretty good so far. Any other Bambu owners in here?

Gonna list my stuff I need to get rid off in a thread: I'm in Sweden. Minigun Supergun - 30 EUR PI2Jamma Setup with Raspberry Pi 4B + 16GB memcard. - 130EUR Minigun Supergun Tested working. Comes with no cables. Has cheap Jamma connector. Pi2Jamma Setup Tested working. Complete setup plug &...

Buffis stuff for sale: Batsugun Bootleg - 200eur Captain Commando CPS1 (complete working) - 250 EUR CPS1 A-Board (tested working) - 100EUR Gekitoride Jong Space (incl mobo) - 100EUR Broken System10 Motherboard - 20EUR Taisen Hot Gimmick Kairakuten (2) - 50eur (ON HOLD) Super Real Mahjong P6 -...

This is not an exciting print or anything else, and maybe obvious, but I realize that you can just scale down "Painters Pyramids" which is used to lift stuff to be painted, and easily use it as pcb stands when testing stuff. No longer any need to deal with PCB feet. Scale them to fit your test...

Bought a very cheap untested Type X3, but turns out it was cheap for a reason ;) At startup, it shows the bios image, then shuts off and restarts again endlessly. Anyone have ideas of common failure modes for these, so what to check first? I actually have a working Tx3 in storage, that I...

This is definitely just in the thinking-out-loud phase so far, but have been thinking about doing a version of BetsuBetsu which in addition to audio + video splitting for streaming, also does button remapping + autofire. Current thinking is support something like: - Video out (MD2 RGB) - Audio...

I'm messing around with some different circuit options for line level conversion and was wondering if someone had good examples of common boards that don't have shared GND tied to Audio GND, meaning that audio GND has some amount of Bias. I know some Mahjong games of mine does (Taisen Hot...

Have some PSUs from Namco System10 medal games. Probably usable for other things to. Anyone want these for cost of shipping, or I’ll e-waste them? See attached pics.

So I've had some fun in December, and feel like I have a good understanding of how the CV1000 Blitter behavior and performance works now. I wrote a big chunky 22 page document about it, and it's here. https://buffis.com/research/cv1000-blitter-research/ This should make it possible for someone...

Putting this under ideas, since it's something I've been thinking about a bit, but dunno if I'll bother making one. What triggered me to thinking about it more was this video: View: https://www.youtube.com/watch?v=kZOe7aaiqqE Basically, USB-C supports multiple voltages including 12V and 5V...

The backstory here is that I want an arcade stick that I can plug directly into my Exa Arcadia, without a external IO board. Still needs an additional USB cable for power though. I'm using a Iona USB HID IO board now which is pretty nice, but this is an other option to do it. Basically, what I...

Quick little design I threw together in minutes that work well enough for storage. Model files: http://img.buffis.com/3d/panel_holder/ Note that this is a bit of a rush-job, so could obviously be improved. Works well enough for me though.

I have a Silent Scope board which I bought as working, but havent tested myself. Comes with filter board + all cables, as well as a LAN board from a Silent Scope 2. Romset of the pcb seems to be "sscopec" when I checked by dumping. Videoboards are "GQ871" which are NOT suitable for gradius4...

I have a Silent Scope board which seems to contain the revision dumped in mame as sscopec. My PCB however has a GQ931 comm board which according to mame should only be fitted on Silent Scope 2. (sscope2 has these dumped as 931a19.8e, 931a20.6e) This seemed a bit curious to me, so was goign to...

So uh… I had a storm blade that worked fine for a bit, and then died, by glitching out and then started always giving me a black screen. Swapping the rom-board onto another Seta System V motherboard worked for about 45 minutes, then it started glitching out and now that mobo is also dead...

I have three Namco PSU’s and some adapter board that I think were used for their medal games. Look high quality but I live in a 220v country and will never use these. See pics for specs Free for cost of shipping

Bought a jong pcb for 2000yen that was marked broken. And yeah, heres the problem @caius makes repros of these chips (JK-2) but I didnt really feel like spending 40-ish euros on fixing a game that would only be like 10000yen new. … but I had done such a replacement previously and had the...