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Just got a free Ms Pacman! Woot!
rCadeGaming:
Free!? Uhhhh... way too nice. I'm jealous. Serious screen burn-in, but it probably won't bother you when you're actually playing it since you'll be sticking with that game.
Malenko:
do you have access to another pacman machine? put your board in their machine and see if it works might save you some headache. I do agree with the voltmeter suggestion, if you have cabs you need a good one of those.
markronz:
Got it working! :applaud:
Got a top over on KLOV to straight up remove the RF board that is between the large connector at the top and the main PCB board. It's circled in the attached picture. From what I read I should "remove that board, snap it in half, and throw it away". lol So evidently that board isn't very important. The only thing that is connected to it is the yellow ground wire that goes around the game. So I plan to definitely look around some more and make sure there's nothing I need to do in place of that board.
But the main point is, I took that board out and boom! It all works! That zoom button is pretty crazy too. Makes the hole game, ghosts included speed up like crazy!
RandyT:
If I were to guess, which I am, it looks like that board is some sort of signal conditioning circuit to cut down on RF emissions and the like. Probably something the FCC made them add on before they could distribute it. If it doesn't cause interference with neighboring equipment, you shouldn't have to be concerned about it.
Congrats on the very nice freebie and getting it working!
markronz:
This is the explanation I got from a member over at KLOV on the board.
--- Quote ---The only reason the filterboard is there is because in the 80's, the FCC thought that these video games were emitting signals that would mess with radio transmissions on airplanes and such. Since then the general population has finally come to their senses. Your Pac-Man game will not crash planes.
The ground strap can be tucked out of the way - your pcb is getting ground through the power supply wiring anyway.
--- End quote ---
So you're right Randy! Now lets just hope no planes crash into my house. :)
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