Some Panasonic LCD TV owners find their viewing experience cut short by temperamental bulbs. Because most Panasonic LCD bulb lamps are designed to last at least a year (or 10,000 hours), most LCD television owners are not prepared when the bulb burns out. Being able to recognise burnt bulb symptoms on a Panasonic LCD TV can help with troubleshooting and repair efforts.
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Change in Picture Quality
The picture quality is the first symptom of a bulb which is burning out on a Panasonic LCD TV. Images that were once crisp will become fuzzy or slightly distorted. Colours which were bright take on a reddish hue, and the screen itself seems dimmer. When picture quality begins to deteriorate, always check the television's contrast settings. If changing the colour contrast does not help, the bulb is probably starting to burn out.
Cooling Fan Constantly Running
Panasonic LCD TV bulbs have fans installed near them to cool the bulb after the television is used. Keeping the bulb cool extends the life of the bulb, and helps to avoid television problems which are caused by bulbs overheating. When the bulb begins to burn out, the fan will have to work harder to cool it. Towards the end of the life of the bulb, the fan will run nearly nonstop in an effort to cool an extremely hot bulb.
Trouble Lights Flickering
Panasonic LCD televisions have trouble lights towards the bottom of the television which flicker to indicate technical problems. Each model has a burnt bulb flicker pattern designed to warn the owner that the bulb is burning out. The owner's manual that came with the television will contain detailed descriptions of each trouble light and its meaning.
Sound With No Picture
One of the most obvious, and distressing, burnt bulb symptoms on a Panasonic LCD TV is a blank television screen. The television owner will be able to hear sound, but no picture will appear. Often this error will trigger a flickering light, and the LCD TV usually shuts itself off.
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