Are you a TV Repair person?
Answer:
Sounds like the eht is arcing slightly, usually caused by dust on high voltage leads or high voltage lead to tube. It should be attended to asap before it gets worse. Back cover has to be removed and cleaning of eht lead and connector to tube and also transformer where the eht lead comes from , all easy stuff but some experience would be usefull. Cheers Pete.
Peachy !! Hiss and static sound , my diagnosis is only a guess like everybody elses so my internal memory log of faults over 45 years gives the answer I gave. TV Tech since 1956 !!
I don`t try to impress with technical jargon just try to be helpful in laymans terms !
Are you a TV Repair person ?
No, I am not
But, it sounds like your TV is pocessed
have you been watching reruns of Crossing Over ??
If it was a squeal, I'd say a coil is vibrating, however, the static electricity sound you said you hear indicates high voltage. It sounds like a high voltage arc or maybe focus arcing. One check you can do is to smell the back of the cabinet to see if you get a different type of smell when this occurs or see if you can actually see any arcing inside. How does your picture look when you hear this sound? Sometimes you can get an arcing effect when there is dust & or moisture around the anode cap going into the CRT.
I think something wrong with your flyback (maybe it leak). Be carefull this thing can generate Kilo Voltage. Yes it can fry you.
Obviously none of the above have ever opened up the back of a TV in their life. The sound you hear is the horizontal sweep frequency emitted by one of the several horizontal sweep components. It could be the high voltage transformer, a pincushion reactor, the deflection yoke, or any of several other components inside. It's a tough job to isolate which one is emitting the noise. It usually takes judicious application of hot-melt glue to the various components to solve, but can be quite challenging to even the most seasoned among us. The best bet is to live with it until you replace the set with an HD unit, which you will have to do in the next two years, anyway. HD sets operate at a much higher frequency... well above the human range of hearing.
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