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Your coin op video game most likely has electronics that are deteriorating due to age and dust. It's actually a pretty common occurrence with older coin op machines. Components like capacitors degrade over time and eventually the electrolyte leaks out, contaminates the PCB, and the analog and power support circuits fail. The dust that builds up on the PCBs absorbs moisture from the air over time and can eventually bridge electrical contacts causing shorts that can lead to all kinds of problems.
Your best option IMO is to simply look for a local arcade and coin op machine repair service. The Internet should be a good place to start. If you are still having difficulty finding someone to repair it, simply ask around at any arcade or other location near you that has coin op machines and they should be able to point you to people who repair them.
Hello: first thing is check the 5V+ 12V+ -5V in the power
supply, sometimes when the power supply goes low or
high cause that problem, other thing that you need check
is the connector for the logic, sometimes contacts get
black, use a eraser to clean the contacts, the last thing
is reseat all chips in the logic, the ones that are in sockets
Thank You..
Miguel
1.Check the dip switches for cocktail set up/ no upright.
2.does the screen flip to the player 2? if yes
3.make sure you have good dc ground in player 2 joystick.
4.if no picture flip for player 2, go to solution 1.
Thank You.
IF you can "play" the game blind, that shows the game board is working fine.
The issue can be in the monitor. That can be many reasons there is no picture .Check all plugs and connectors. Make sure the back of the CT is plugged in. Power to the monitor is present. Do you have amanual for the arcade? You should be able to find one online.
Do you see the picture tube lit up, not on the screen, but in the back of the neck of the tube? (Orange glow from the filament)
I"d suggest that you seek out a qualified service person for the game, if you are not familiar with working on electronics.
There are fuses in the cabinet power supply I believe, check those. Could be something as simple as the fuse going to the monitor.
Have you checked the DIP switches to see if they are in the right positions? IIRC< there was a setting to keep the game from booting and in diagnostic or freeze mode.
Do you have the manual for this machine? There is one online for download free.
Are you talking about the little new thing you connect to a TV? That should be easy. Video plug to video input, and audio to audio :)
If you don't have video and audio inputs on your TV , you woll need to get a video modulator.
there are buttons inside the coin door for programming. one button will bring you to programming mode on the screen and use the other(s) for selections. you can put it on free mode.
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.
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