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canuck the pro
canuck the pro, Handyman
Category: Home Improvement
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Experience:  Handyman
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I have a 2006 Panasonic plasma TV. It makes an annoying buzzing

Resolved Question:

I have a 2006 Panasonic plasma TV. It makes an annoying buzzing noise when white is on the screen. So it buzzes on and off depending on how much white is on the screen. How do I stop the buzz. I've tried adjusting contrast, brilliance, colour, etc. to no avail.
Submitted: 2 years ago.
Category: Home Improvement
Expert:  canuck the pro replied 2 years ago.

canuck the pro :

Hi, my name is XXXXX XXXXX I have been in the home improvement and repair field for 20 years. I will be glad to help you today. I have tinkered with those tvs before. I find they have a lot of troubles with the power supply. If you have a bit of experience with working on electronics and have some experience with soldering electronics you will likely find a bulging capacitor on the power supply. If you do not find a bad capacitor then the power supply itself has a failing component in it that cannot be replaced. You may find a replacement power supply on Ebay for a reasonable price if this is the case but be sure if you take that route that you match the part numbers exactly. Be sure that the power has been discharged before you work on it also. Even after unplugging it there is a lot of voltage still stored in the capacitors.

canuck the pro :

Bad capacitors. Note the bulging tops of the 2 capacitors indicating ...
Full Size Image

canuck the pro :

A capacitor will be perfectly flat on top if it is a good capacitor. A bad one will be bulging or leaking as pictured.

canuck the pro, Handyman
Category: Home Improvement
Satisfied Customers: 2822
Experience: Handyman
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