Sharp Widecreen TV Hums

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My Sharp widescreen TV hums (audible hum in quiet periods or when sound is down), what is puzzling is that its not a constant problem and i can't seem to figure out what is causing the hum, when I touch the side caseing of the TV this humming stops. It resumes when I let go.

The TV also hums for a short period after I turn the set off.

Any ideas how I can earth the set to prevent this?

chewiesw
 
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This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.