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Whining....

205.175.225.5

Posted by Tom S. on June 1, 1999 at 08:49:36

In Reply to: Panasonic 27" Superflat XF series TV posted by RT on June 1, 1999 at 08:20:59:

>>I would like to know why this had originally happened.<<

Sounds like the switching power supply was whining because you were overdriving the P/S to supply power to the color guns that were running at full blast to put up a white screen. The flyback trannie, HOT, and shadow mask whine as well.

>>I unfortunately fall into the minority of people who can hear the high pitched whine of all the tv's when I go to the store.<<

I wouldn't say unfortunately because you know you can hear those high frequencies. I can hear my roommate's TV whining from a different floor! However, it does sound like his TV is going to go any day now (even though it's been making that awful noise for the past year). He can't hear it because he used to work around jet engines in the USAF.

As for tweaking......I've tried using a blanket wrapped around my tv and it cut down the whining to a tolerable level. I'm not sure it's a good idea because it cuts down on the ventilation of the TV.

Tom S.

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