Arcade machines, whether classic or modern, rely on several field-replaceable components to ensure smooth operation and easy maintenance. The most common types include:

1. Joysticks – A critical input device, joysticks wear out over time due to heavy use and are frequently replaced.

2. Buttons – Both action and start buttons can degrade and require replacement to maintain responsiveness.

3. Monitors (CRT/LCD) – Arcade monitors, especially older CRT models, may need replacement due to burn-in or failure.

4. Power Supplies – Faulty power units can cause operational issues and are often swapped out for reliable performance.

5. PCB Boards – The brain of the machine, PCBs may need replacement if damaged or corrupted.

Regular maintenance and knowing these key components help extend the lifespan of arcade machines, ensuring endless gaming fun.