channelmaniac

Here's the back side. Note the judicious use of Dollar Tree green fingernail polish to tack the wires.

Got a B240 error on it and had to replace the 22K and 10K resistors. The 22K went open and the 10K went up in value to almost 12K. Also...

That's what I ended up doing. Been working on this board but no further improvements yet. I pulled the NEO-E0 at K10 because a bunch...

What do you do when you have a dead board, but have schematics for it? You put the damn thing back on the bench and spend all day on...

Use a larger thru-hole to run the wire to the other side of the PCB. Using Kynar, it's pretty simple.

If you have a logic probe with audio beep, you just go pin by pin on the ZMC2 and find the one floating - no high or low signal... no...

Get one that has audio beep output... then replace the gator clips with some decent mini-grabbers to easily get your +5 and ground...

Thanks man. We've been married over 34 years now. Couldn't imagine life without her at this point.

Do you have lower resistance to +5 or ground for D4 vs the other data lines? If so, you can use that to measure at different chips to a...

On FB where friends can see... She has a gnarly scar behind her ear where they went in about a year and a half ago and removed a 35mm...

Twenty years ago, August 2005, I started Arcadecomponents as a business after having a hard time finding 2x 2149 RAM chips to fix a Pole...

No. You get one that has battery roached corroded pins from a failed battery in the cart. They are around.

You can find a replacement CPS-A-01 custom chip on any CPS2 A board.

When troubleshooting watchdog problems, keep in mind that ANYTHING that f***s with the Address or Data Bus will cause the CPU to not...

Hey everyone, Pulled a rabbit out of a hat and picked up a quantity of NOS Neo Geo custom ICs and have them listed on my web site...