10-25-2009, 10:44 PM
Replace it -- most likely the high-voltage power supply (around 40,000V) is going over-voltage and crowbarring the safety circuit. This MAY happen with much higher than normal line voltage -- say 130VAC, so you can check that with your Kill-A-Watt. If you have high line voltage, it will affect a plasma set but most likely not affect an LCD or LED.