20 Most Recent Arcade Ms Pac Man / Galaga Cocktail Table Video Game Questions & Answers

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It is a bad socket connection at one of the plug-in boards mounted on the main cpu board, usually. The 40 pin sockets of old are pure ****, and need to be replaced with machined-tooled sockets. Worst case would be the one of the two plug-in boards have gone bad.(kind of rare) Sometimes, the sockets for the Eprom chips can be bad, too.

PDF Manual at the link below.

http://www.namco.co.uk/PDF-manuals/namco-america-manuals/ms%20pacman%20galaga%20cocktail.pdf

Their should be a switch inside to activate the Test Menu.

Once in the Test Menu you need to go to '3 General Adjustments' and change the 'Credits To Start'.

You'll also need to select how many credits each coin is worth.

I have a eralier 80's upright Bally's Pac Man arcade machine that I got off a freind of mine. They said that they palyed it all the time up to about a year ago. I got it home set it up and pluged it in... and nothing happens. I've hit the start buttom on the inside and the new game button but still nothing... Is there something else that I may need to check?

that problem happens due to poor contacts of graphic IC'S on the game board.power off the machine and open the game board cover pullout the graphic IC's one after one clean all the pins of the IC's using a pencil eraser and return it to the IC socket securely make sure all the pins are contact to the board..do it on all the IC's on the board that have a socket...thank you very much please do rate my help..

Hello.

From FixYa Support:

If you have the stand up style, look for the switch inside the coin door to enter the diagnostic menu. Then, restore the factory settings. This could wipe out anything you have saved.

Hope this helps.

is this a dedicated machine (original manufactures cabinet) which model do you have...is it the stand up or cocktail table...if its the stand up and you know where the switch is located inside the coin door to enter the diagnostic menu..you can go in there and restore the factory settings

let me know if you need further help with this issue

bill

Replace 74LS257 @ U2 on VRam addresser board, or replace the whole addresser board. Usually $20 on ebay.

I'm assuming this game cabinet was built in the 80's. More than likely, the monitor is an Electrohome GO-7. If this is the case, replace capacitor C511 on the monitor board. It has baked open due to old age. Usually, capacitor kits can be purchased for around 10 bucks, so you might want to replace all the caps on the board at ths time. Worst case scenario would be that the Flyback transformer has smoked (usually you'll see a crack on the side of the transformer), causing the horizontal output transistor to cook and also the smaller of the two pigtail fuses to blow. In this case, you would have to replace the Flyback transformer, the horizontal output transistor, and the small pigtail fuse associated with it. Remember to always discharge the second anode( the suction cup thingy on the side of the tube). It will hold a substantial charge on it. Also, if the small pigtail fuse is blown, you will need to discharge the large cap on the monitor board, or else it will knock you on your rear-end when you try to replace the blown fuse. Hopefully, you'll will only have to replace one cap. C511. If your game does not have an electrohome monitor, I can still help, if you provide the manufacturers info, such as Well Gardner model 7204, or something like that. Good luck!

if you're good at soldering, you can replace a few things on the monitor's main board. puffy capacitors (look like cans) especially. but before you do so, you'll need to discharge the crt tube by running the stored charge (up to 20,000 volts dc) straight to a ground source. it's a big deal and it's dangerous if done incorrectly, so you might want to leave it to the professionals. now might be a good time to change to a lcd monitor.

your monitor high voltage circuit has failed troubleshoot it as any tv

Use the joystick controller's right and left to select options, and then use either one of the buttons to make your selection. The button with 1 human stick figure next to it is the Player 1 button, and the one with two stick figures is the Player 2 button. Unless the defaults were changed on that machine, 1 quarter is required for 1 player and 2 quarters are required for two players. I haven't used one of these machines since the original from 1982 to 1986. I can't believe it, but Namco actually has put a PDF of the service manual for this unit on their website:
http://www.namcoamerica.com/games/pacman/downloads/ms%20pacman%20galaga%20cocktail.pdf

Have fun! I would love to have one of these on day.

-Tha Mp3 Doctor

If this is a CRT type of arcade video game, it most likely uses an old-school flyback transformer, and a bunch of electrolytic capacitors. Check for cold or dry solder joints on all the boards (with the unit unplugged), and retouch any suspicious ones; especially the pins on the flyback, the CRT neck board/socket (if applicable) and in the power supply sections, where heat may be generated. Also check to see if the filaments light up in the CRT neck. It's also a good idea to check the caps in the power, horizontal and video sections as well - look for bulging or ruptured electrolytics, and/or burned resistors. Some arcade games (e.g. Asteroids) use a HV diode rated at around 25-30kV (it is located near the flyback and may have an insulated plug at each end). These can crack, short or simply go open circuit producing a "no display" symptom. If your game has this, check it before condemning the flyback or caps (the diode also doubles as a HV fuse). Do all the basic checks/visual inspections that you can thoroughly first before going any further with repair and/or restoration. It could be something really simple and easy to fix and/or obtain parts for (at reasonable cost if necessary).