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In Reply to: High pich scream (16khz) on JVC AV-27F702...HELP!! =) posted by Algae on October 30, 2001 at 08:55:03:
Try turning the brightness down and see if the sound disappears, it could be a vibration in the tube mounting or flyback transformer, or a componenet out of tolerance.
Follow Ups:
Yes, it sounds like maybe a flyback transformer. Reducing the brightness and/or contrast might help. I cannot actually hear to 16 kHz anymore, but I know what you're talking about. I used to have this problem with my 27" Sony when I first got it, and I found it rather annoying. Either it went away by itself or my high frequency hearing ability declined to the point where it stopped bothering me. I haven't tested my ears lately, but I think I would be lucky to even be able to hear to 15 kHz.Todd
Thanks for your feedback. Changing the adjustments didn't seem to help.Is this problem fairly common with TV's and are just not reported since many people have lost that part of their hearing?
Is there any fix to this problem other than the suggested contrast/brighness adjustments?
Open TV and knock on flyback with screewdriver handle. Or just give a knock to TV couple times it may go away. Other than that you have to replace flyback.
Problem is not very common in new TVs. This repair is not covered by warranty, but depends who provide repair you may get it for free.
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