Gamma shift in arcade displays, particularly classic CRT-based units, is a common issue that degrades color accuracy and image quality over time. Preventing it requires a combination of proactive maintenance, environmental control, and precise calibration. The most effective methods include regular calibration using specialized test patterns and hardware gauges to adjust the monitor's brightness, contrast, and gamma settings to manufacturer specifications. Environmental factors are crucial; controlling ambient light levels and avoiding direct sunlight or strong reflections reduces the need for brightness overcompensation, which accelerates gamma drift. For CRT monitors, maintaining stable operating temperatures is vital, as excessive heat can alter electrical components and cause gamma shift. Ensuring proper ventilation around the arcade cabinet helps mitigate this. Additionally, checking and adjusting the power supply voltage to the monitor board prevents fluctuations that contribute to inconsistent gamma performance. Component aging is another factor; proactively replacing capacitors and other worn parts on the monitor's chassis can restore stable gamma performance. Finally, using high-quality signal sources and clean video connections minimizes signal degradation that might indirectly affect gamma interpretation. By implementing these methods, operators can preserve the intended visual experience and longevity of their arcade displays.