Pacman36
New member
I have a coffee table I paid $27 dollars for at a consignment store in Petaluma CA.* The game*was working fine but it's monitor was bad.*** I tried to find a new monitor but they have become pretty expensive.* Searching barn sales I found a Nintendo upright double screen Caladash with a bad cabinet (rain) but all else working.***Paid $40* for the game. *The monitors were*cherry.** I dismantled the huge game and took all but the lumber.**When I came home I quickly tried to*hook up the*monitor finding that the wiring harness was different I cut the one off the monitor and proceeded to incorrectly wire the*outputs(Dumb). *The Green output to the* green ground (found out after looking up schematic)*on the monitor and zap.* 60 volts*Apparently my monitor ungrounded has a voltage?)** There were two resistances blown.* Well I replaced them.** Taking a volt meter*there was no voltage coming from the color green output like the blue and red.**I read the schematics on the ms pacman and the sanyo nintendo monitor and I grounded the monitor to the transformer*and hooked up the rest and*powered* it up and*zap the*main fuse on the monitor blew and there was some popping.* Ok I'm going to Arcade hell if I don't atone for*killing a Ms pacman.**Since I have no Idea how to test*the*chips.** I'm thinking* I should try replacing the* chip at 7F on the Ms Pacman mother board (n82s123N8211 8211) next line (0120.07axn-axn?* Midway 1981, it seems to be the next in line in the circuit.** The chip has voltage for the color red but nothing for green.*** Well I'm not sure how to trouble shoot the issue.* None of the chips seem to have been damaged but I'm going to start replacing chips until I get a signal.** The Resistances blown were at R13 R15. I found a guy at hobby chips who can get me a 7F chip for ten dollars. but I'm pretty much convinced I'm an idiot when it comes to fixing games. If you have advice I would appreciate it.


