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Article #19309Re: Baffling Buzzing Boob tube
From: Charles Cain
Date: Mon, 20 Jun 1988 18:17
Date: Mon, 20 Jun 1988 18:17
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2037 bytes
In message (1791@loral.UUCP), jlh@loral(Jim Harkins) writes:
>My TV set has a loud buzzing noise whenever white text is displayed on
>the screen...
What you are experiencing is what we in the industry call sync buzz. The
problem is that the white level is of such a high magnitude that it is
getting into the synchronizing pulses and is being introduced into the
audio portion of the TV signal. Probably what has happened is an
amplifier in the front end of the TV set has gone bad and has too much
gain for the rest of the amplifiers in the set. A couple of questions
though. 1) does it do it on ALL TV stations in your area, and 2) have you
tried playing with the controls on the front of the set. If it is only on
1 station, then they have a serious problem. If not, then it would
probably be in your best interest to get a new set since it is 10 years
old and the capacitors in it will start drying out right about now and
you will have more problems like this. Hope this helps you out Jim.
Charles R. Cain, Broadcast Engineer,WTVF-TV Nashville, TN
a/k/a sheperd@raider.UUCP
Disclaimer: These are my opinions after YEARS of learning them.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!att!osu-cis!killer!mjbtn!raider!sheperd From: sheperd@raider (Charles Cain) Newsgroups: sci.electronics Subject: Re: Baffling Buzzing Boob tube Message-ID: <3.22BDE1BC@raider> Date: 20 Jun 88 18:17:11 GMT Organization: FidoNet node 116/12 - The Amiga Advocate, Nolensville TN Lines: 33