Arcade machines, like any electronic equipment, can develop issues over time. To diagnose and fix these problems, technicians rely on a variety of diagnostic tools. Here are the most common types:

1. Multimeter: A versatile tool used to measure voltage, current, and resistance in circuits. It helps identify power supply issues or faulty components.

2. Logic Probe: This device tests digital circuits by detecting high or low logic states, making it useful for diagnosing logic board problems.

3. Oscilloscope: For advanced troubleshooting, an oscilloscope visualizes electrical signals, helping pinpoint timing or signal integrity issues.

4. Circuit Tester: A simple tool to check for continuity or shorts in wiring and connectors.

5. ROM Burner/Reader: Used to verify or reprogram game ROMs, ensuring software integrity.

Regular maintenance with these tools can prevent major breakdowns and extend the lifespan of your arcade machines. Whether you're a hobbyist or a professional, having these tools on hand is essential for efficient troubleshooting.