If we swap the replacement board in the cabinet but the sound issues continue then we must have problem with our cabinet. Using this method will help us determine whether the problem is with the game PCB or with the cabinet itself. This is a great way to troubleshoot cabinets that are wired using the JAMMA standard as there are several compatible boards available. A good way to test this is to get another game PCB that’s compatible with the cabinet and swap it in place of the current board. It could be that the board itself is not putting out any sound to the speakers in the cabinet. Sometimes the volume setting may not be the problem. If this is the case with your game, consult the manual to see if there’s a way to adjust the volume using another method such as the test/service menus. Some cabinets may not have a physical volume potentiometer for you to adjust. If there are multiple potentiometers for volume, you may need to turn them all up in order for it to make a difference.

Once you have located the volume potentiometers, try to turn them to see if it restores the missing audio. Please keep in mind that the location will vary from cabinet to cabinet. Some common places for volume potentiometers include inside your coin door or on the game PCB (or Printed Circuit Board) in your arcade cabinet. Along with volume adjustment, potentiometers are also used on arcade monitors to adjust certain attributes of the picture such as position or size.

Potentiometers (or pots) are knobs that can be adjusted to modify certain electronic aspects of your arcade game. Let’s start off our repair by trying to locate the volume potentiometers in the cabinet. In this post, we will discuss how to troubleshoot some common sound issues with arcade games. While not all arcade games are exactly the same when it comes to their sound configuration, there are many common elements found among them. If the sound on your arcade cabinet is not working properly, it can lead to a frustrating experience for the player similar to trying to play with a broken joystick or button. When people play an arcade machine, they expect to be immersed in these sounds as part of the experience. Sounds like the waka waka waka from Pac Man and the background music from Space Invaders have become staples in our popular culture. Sound has been an integral part of the arcade experience since the beginning.

Midway arcade manuals adjust volume