annoying noise coming from TV
Hello all, but especially to Woodman :^)
I have a 1.5 year old Toshiba 27" flat crt tv that just recently has decided to emit a high-pitched noise after the tv has been on for a while. I can usually fix the problem by turning off the tv, waiting a few seconds, and then turning it back on, but this is only a temporary solution as the noise inevitably comes back. I talked with a buddy (an electronics tech) at work and he suggested that it is caused by a vibration at ~16kHz of something in the power supply (I think that is what he told me). He said they have a spray can of a silicone-based product, which when sprayed on the offending component will stop the sound. Does any of this make sense? Of course, the warranty is over (only 1 year) and if there is a reasonably simple fix that I can do myself then that's what I'd like to do. I'll be honest, the noise isn't completely driving me crazy yet, but I think it's only a matter of time . . .
Thanks in advance for your help,
Mike
Hawkeye is close. It sounds like the flyback transformer has some lose windings.
It's either replace it or live with it.
Are you by any chance watching "The Nanny"?
That'll produce a serious whine from ANY tv set. (Oh Mistah Sheffield!)
(just havin' fun. don't get offended.)