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There is a sound coming from the Panasonic th-42px20 TV about…

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There is a sound coming...
There is a sound coming from the Panasonic th-42px20 TV about every 30 seconds. It sounds like the noise a smoke detector makes when it needs a new battery.
Submitted: 3 years ago.Category: TV
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Answered in 1 minute by:
6/4/2015
TV Technician: Nathan, Installer replied 3 years ago
Nathan
Nathan, Installer
Category: TV
Satisfied Customers: 31,356
Experience: Custom home theater installer, authorized dealer top brands.
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Hello, I’m Nathan, and I’ll be assisting you today.
My livelihood depends on your positive feedback, so your satisfaction is my highest priority.
Sorry to hear you're having trouble.
Does this seem to happen on all inputs/source (cable/satellite, dvd, game, media/apps, etc)?
If you turn the sound down or mute the tv speaker, do you still hear it?
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