I recently picked up a Ms Pacman cabaret. The game will not coin up. When the game is powered up the screen is scrambled. I did hit the red SW1 switch. There is still neck glow with no picture now. Is this a sync issue, need recapped, or a board issue?? Any ideas on a fix?? What is this worth in good working order. It has a PCMS #2787 piece of paper stapled to the inside.
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Ms Pac ???????
- Thread starter firefgtn8
- Start date
splattergatz
Well-known member
whenever i get a pac or ms pac, i first replace the fuse HOLDERS. they get weak over time and dont grip the fuse tight enough to allow proper electron flow. your plug has 3 prongs on it?
thats where id start anyway...
then theres this site that might help.
http://www.arcadegameover.com/pactrouble.html
thats where id start anyway...
then theres this site that might help.
http://www.arcadegameover.com/pactrouble.html
That looks like a bad ribbon cable or connection to the AUX card. Try taking the z80 off of the AUX board and put it in the place or that 40 pin ribbon cable connector on the main board. Make sure you put the IC in correctly. If it comes up as PacMan with the wrong charactors then your issue is with the ribbon cable and/or the ocnnections in between. If it still doesnt come up reset the ROMs in Row 6 (next to the CPU socket) and make sure that the little daugher boards that plug into the main board are in correctly.
Matt
Matt
modessitt
Volunteer: Encyclopedia Submission Moderator
Probably a problem with the VRAM addresser...
What happens in test mode?
Pac-Fan
New member
Also looks like either the board is not outputting red or your monitor is not displaying red. The entire image is only blue, green or a aqua-colored white for color.
It is frozen due to either a bad SyncBuss controller, bad Z80 socket, bad cable to daughter board, bad daughter board (rare) or bad VRam controller.
Make sure the daughter cards are plugged in correctly -- the notch in the chips must face the same direction as those on the main board---away from the edge connector. If plugged in backwards, you will need to replace the boards.
It is frozen due to either a bad SyncBuss controller, bad Z80 socket, bad cable to daughter board, bad daughter board (rare) or bad VRam controller.
Make sure the daughter cards are plugged in correctly -- the notch in the chips must face the same direction as those on the main board---away from the edge connector. If plugged in backwards, you will need to replace the boards.
