Dim Dark PC Monitor – Reasons for Dark Screen in CRT & LCD Monitors

Both CRT and LCD monitors are prone to dimming due to different reasons:
  • Dimming in a CRT monitor happens because of low emission. If the power supply and electronic parts are fine then this is a likely cause for the monitor going dim.
  • Dimming in a LCD monitor is because the backlight has become old, or the inverter that supplies power to it is faulty. In either case, replacing the backlight/inverter is far cheaper than buying a new monitor.