Arcade machine monitors, especially CRT models, often face calibration issues that can affect gameplay quality. The most common problems include:

1. Color Imbalance – Faded or overly saturated colors due to aging components or incorrect settings. This is fixed by adjusting the RGB pots on the chassis or using a colorimeter for precision.

2. Geometry Distortion – Warped or misaligned images caused by magnetic interference or failing capacitors. Solutions include degaussing the monitor or manually tweaking the yoke alignment.

3. Sync Problems – Rolling or flickering screens due to improper horizontal/vertical sync settings. Adjusting the sync pots or replacing faulty capacitors often resolves this.

4. Burn-In – Permanent image retention from prolonged static displays. While irreversible, reducing brightness and using screen savers can mitigate further damage.

5. Brightness/Contrast Issues – Dim or overly bright displays caused by aging tubes or incorrect settings. Rejuvenating the CRT or recalibrating the flyback transformer can help.

Regular maintenance and proper calibration tools are key to keeping arcade monitors in top condition. For severe issues, professional repair or tube replacement may be necessary.