TV makes a noise when switched on

stilernin

I have just bought a second hand Sony Trinitron TV which makes a loud buzz as it is switched on. It has a 'tested for electrical safety' sticker on it and 'purchased 2001' was hand written on the instructions that were still with it.

It is in perfect condition and works fine with a great picture. I have a one month guarantee on it, so is this start up noise anything to be worried about?

reddevilled

We have a Sony Trinitron about the same age as yours and it has always made a loud buzz when switched on, as does my parents who have the same one. They've both worked for the past 6 years or so so we haven't worried too much about it!

tartan_guru

The loud buzz (if it only lasts for a second) is likely to be the screen de-guassing itself. This is normal operation in more expensive TV's and is designed to remove any stray magnetism building up in the CRT tube.
If you have a CRT computer monitor in the house then these have a similar function, which it might be worth trying to see if they sound similar. Usually you operate this manual through the menus, rather than it happening automatically in the TV

stilernin

Thanks for your replies.......... looks like I got a bargain at £30 then :j

poppyolivia

My tv does this and I keep thinking its gonna explode one day....I'm glad I read this!!LOL

Debt_Free_Chick

stilernin wrote: »

Thanks for your replies.......... looks like I got a bargain at £30 then :j

With luck, yes. My Sony Trinitron is 18 years old!!!!! (I think I paid about £600 for it, new - which was a lot of money then!)

PROFESSIONAL_LANDLORD

tartan_guru wrote: »

The loud buzz (if it only lasts for a second) is likely to be the screen de-guassing itself. This is normal operation in more expensive TV's and is designed to remove any stray magnetism building up in the CRT tube.
If you have a CRT computer monitor in the house then these have a similar function, which it might be worth trying to see if they sound similar. Usually you operate this manual through the menus, rather than it happening automatically in the TV

Yup, the buzz is actually caused by the de-gaussing coils slight movement on the rear of the CRT which get activated on switch on.