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Being the legend that he is, Frank silkscreened the pin assignment onto the bottom of the board.

I’m about as far from the USA as it’s possible to get, so I can’t help physically, but normally screens are like this for me Solid colour (normally green or red for me) = 68k can boot, can’t read program (because it’s encrypted) = dead battery or bad connection between a and b Black screen...

Unsorted notes part 3 - Digikey parts list Parts list for my 467 specific failed parts, as well as all the other frequently failing components. Parts list for CR-XA (this is the ver.1 variant of the adapter) End of unsorted notes part 3 - that's all I got, hope it helps

Unsorted notes part 2 - including the much coveted clear schematic PDF End of unsorted notes part 2 - part 3 with the parts list coming soon

These are my unsorted notes collected from the intertubes Start of Unsorted notes part 1 CRT rejuvenator BK precision 467 Mine needs a restore… "The G2 setting knobs under the meters independently set the G2 voltage of each gun but I found each knob had an influence on the other G2 settings...

Ouch! These guys are really expensive, and the BOM calls for 50+ of them! https://nz.mouser.com/ProductDetail/KEMET/B-06-R-25?qs=gt1LBUVyoHn1EGcP7DmcpA%3D%3D Anyone got an alternative supplier?

Getting close… as with every good project I’m missing one critical part. Despite sitting in an immense mountain of vintage electronics not one single DB9 port anywhere in the whole lot, what are the chances….

I have found my tribe of fellow Capacitor Fiddlers. Nothing beats the thrill of finding the perfect replacement cap - taking into account lead spacing, heat tolerance, lifecycle, height and diameter. Bliss.

Most of the BOM is reasonably straightforward, except for all the bits that are unobtanium and need to be salvaged from an existing board of course. I dimly, vaguely remembered some research I did ages ago in to the DIN-8 connector. This is now obsolete and mini-din-8 is often sold as din-8 for...

Huge thanks to @xodaraP for sending this Anzac care package of goodness - there is way, way more, this is like 1/4 of it. With this enormous stash of NeoGeo spares I'm now ready to complete all my half done repairs. AND build my own AES for only 4x what it would cost to buy a tested fully...

Working on MVS CHA. In parallel DJsheep sent me this awesome project https://github.com/wickerwaka/PicoROM which is an emulator for DIP32 EPROMS up to 2mbit I have been been looking for an excuse to get some picoroms made, and it feels like this is it. Am I oversimplifying here, or could I...

This is a really cool project, thank you for sharing it - I didn't know. I did find this post; refers specifically to E and A21 being moved to their "correct for NeoGeo" position for 1.1 http://www.neo-geo.com/forums/index.php?threads/64mbit-8mb-flash-adapter-board.260677/post-4238025 So if...

There are some absolute troubleshooting rockstars on this board. I dont consider myself one of them, but I'm working on it. Normally the watchdog tick of death at power up means "I can't boot and I'm going to keep trying". But what's in the video is not like any watchdog I've heard before...

The only sane thing to do was buy a 9" BVM for testing. Already had a perfectly good BVM for testing, but... 13k hours is not bad, these little guys tended to get used as field monitors, so turned off when not in use. I'd consider this "low miles". The bigger ones might have been used for...

Great to see plucky NZ represented :-) Thank you very much for your hard work on this, some absolutely iconic games in that list, BBH in particular, nothing else quite like it

Thank you very, very much! - I was stuck in that special troubleshooting place with untrusted hardware and untrusted software and untrusted device and no way of knowing which of them was the problem. I really appreciate this. Intel are weird with their software; a few months ago it was like a...

Thanks, am getting desperate enough that even the officially licensed ones for $US100+ were starting to look attractive, this one is a much better price point. Im positive its some combination of Quartus version, Driver Version, and Hardware version - harder than I expected

Amazing news! Thank you very much for sharing. Both of my Aliexpress USB blasters refuse to work. Not sure if it’s bad hardware, wrong software, operator error. Mind if I ask what USB blaster hardware/Quartus version you are using for the firmware flash?

The MS8 is sharper than the MS9 because G1 is referenced to negative instead of being referenced to ground, this means the difference between G1 and G2 is bigger, which means the beam is tighter, so the spots are smalle , so the edges are sharper. This is interesting in a minute even tho we...

I think I'm telling you what you already know - that game is going to be considered a conversion by pretty much everyone - market value is the same as any other conversion. Things to look for first ROMS 11-20 should be mask roms (no window, game name/number silkscreened directly onto chip) ROMS...