Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!swrinde!cs.utexas.edu!ut-emx!ccwf.cc.utexas.edu From: ifaq570@ccwf.cc.utexas.edu (Allen Kitchen) Newsgroups: sci.electronics Subject: Re: Sony TV Hi-Pitch squeal Message-ID: <50186@ut-emx.uucp> Date: 8 Jun 91 04:19:23 GMT References: <6298@ns-mx.uiowa.edu> <1991Jun3.150425.4892@news.larc.nasa.gov> <1991Jun3.163755.825@hubcap.clemson.edu> Sender: news@ut-emx.uucp Reply-To: ifaq570@ccwf.cc.utexas.edu (Allen Kitchen) Distribution: usa Organization: The University of Texas at Austin Lines: 11 Another common problem that causes that squeal is dust on, in, and around the flyback and the anode cable. Apparently the dust is attracted to any leakage, and this gives a convienient path for small arcing to form. I know I cleaned off the cables on my 1982 RCA, and it has been silent for a long time now. By the way, before you clean it, make sure you aren't grounded, and that the set is unplugged. If possible, short out the anode cable to the chassis ground first. People do funny things when hit with this kind of voltage ( I didn't, but I'm a Tech ). allen