I turned my televison on this morning and there was no picture and there was no sound except a high piched sound like it was coming from the back of the TV. The TV would not turn off by remote control nor by pushing the manual button on the TV I had to unplug it.I plugged it into a different outlet but the TV still had no picture just a high piched sound, I have had this TV since March 2001.
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If you have a built-in microphone, turn the mic volume down (right click the speaker icon on the bottom right of the taskbar, click "open volume control" then turn down the mic volume or mute it. hope this helps.
This tv is under five years old?Yes,it is worth fixing.Over five,i would compare the prices for a new LCD tv and the quote priced from the Tv Tech.for the old tv.This tv have high voltage problems around the Deflection circuitries area.Could be any things burn in this area.The high pitched whine sound,i'm sure it is from the FBT-the high voltages flyback transformer,high voltages current have no where to go.Must hire a tv tech. to troubleshoots and replace parts on the Deflection circuitries area.Also the FBT could be dead too,because HV Current bounces back forth and have no where else to go.The prices to troubleshoot unknown problems is about $400 bucks and plus cost of replacement of parts.
You need to determine which pulley your noise is coming from,the best way is to use a long extension and place it on each item and just touch it to your ear,then you will be able to hear how each of them have there own sound.but from here,i'll place my money on the alternator,they do put off a high pitch noise when the front bearing is drying out on them
The high pitched sound is probably comming from the power supply, possibly due to its trying to drive voltage into a shorted component in the high voltage deflection circuits. You may be lookng at about a $250 repair. If it has been used a lot and its picture quality didn't knock your socks off, I would replace it with a HDTV set. A 37 inch LCD from Toshiba might be a good place to start and should do nicely for you.