T.v makes a high pitched buzzing noise

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hello
problem =
5 year old 32 inch crt t.v makes a high pitched buzzing noise, this happens randomly, it goes away if i put a little pressure on the top, or if i bash it, but it soon comes back.

any thoughts ... thanks
 

Tmagic650

Posts: 17,233   +234
Open the back of the old CRT television and carefully clean the dust and dirt away from the high-voltage components, usually located on the right side of the chassis looking at the back of the TV. The CRT holds a high-voltage charge where a big red or black wire connects to the glass tube so be careful. The area around the red wire rubber cup can be cleaned using a spray bottle of window cleaner, but again be careful not to get shocked... 25,000 to 30,000 volts can be present on the CRT
 
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