Arcade machine monitors, particularly CRT displays, can develop convergence issues over time that cause color fringing and blurry images. Preventing these problems requires regular maintenance and proper handling. The most effective prevention methods include keeping your arcade machine in a stable environment away from extreme temperatures and humidity, as these factors can affect the monitor's components. Regularly check and adjust the convergence rings on the monitor's yoke, being careful to make small, precise adjustments. Use a convergence test pattern to properly align the red, green, and blue color beams. Ensure the degaussing coil is functioning correctly to prevent magnetic interference that can cause convergence problems. Avoid moving the arcade machine frequently, as physical shocks can misalign the internal components. For persistent issues, consider replacing aging capacitors in the monitor's deflection circuit. Proper voltage regulation is also crucial - use a quality power supply to maintain consistent voltage to the monitor. When cleaning the monitor, use appropriate materials and avoid putting pressure on the screen surface. For serious convergence problems, consulting a professional arcade repair technician is recommended to avoid potential high-voltage dangers. With consistent care and these preventive measures, you can maintain sharp, clear graphics on your arcade machine for years to come.