Power light comes on, followed by a high pitched whine

TV not turning on; making high-pitched sounds - Tom's ...

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Nov 30, 2013 - 7 posts - ‎2 authors
Both of them are refusing to turn on, and make high-pitched sounds when plugged in and unplugged. More about : turning making high pitched ...Missing: ear ‎piercing

Top 136 Complaints and Reviews about Funai TV ' Page 2

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Rating: 1.1 - ‎65 votes
We unplugged the unit and waited 15 - 20 seconds and plugged the unit back in, and it wouldn't ... He heard a loud high-pitched whining which led him to TV in my daughter's room. ... It only makes a humming sound now, no pictures at all.Missing: ear ‎piercing

HELP! what is that high pitched noise when tv is on? - TV - Audio ...

www.tomsguide.com/forum/60895-6-help-high-pitched-noise

Jan 25, 2013 - 3 posts - ‎2 authors
Hello, I hear this constant high pitched noise, almost like ringing, but even ... pitch

Sounds like the back-light inverter board has damaged. Check it.

Hi Charotte,your engine is not a interference engine.So your in good shape.

That could be either the color wheel or one of the fans. try listening to which area of the set its coming from.

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.

The colors wheel is dead.That why,u hearing high pitched whining sound.The colors wheel is spinning off of is motor axis and grinding it sides walls,that where the high pitched whining sound came from.Hire a tv Tech. for the colors wheel changing,because it requiring to take out alots of the machanicals parts itself,before u can come to the colors wheel itself to change it.

The power supply on this model will whine when it is shorted or overloaded - the set would have to be brought in to determine exact cause.

hat u need to do is drive vehicle until you hear this pitch once you hear it turn steering to the right to see if whine disappears if it does you are looking at replacing wheel bearing.

Place your ear near the back of the tv and have someone turn the unit on. If the following occur :

a.) If you hear a high pitched whining sound and the fan trying to start but the unit fails to start and goes all quiet it could be a bulb issue. (see owners manual for trouble shooting code of blinking power light in front of tv)

b.) you hear nothing. It may be that the power supply for the unit has failed or its fail safe fuse has tripped. ( call tech this one needs a pro to sort out )

c.) seems like its trying to restart itself but does not quite make it. ( its a bulb issue check owners manual )

sounds like the Power Transformer to me,  usually accompanied by a high pitch (almost inaudiable whine) and  sparks arcing.

 

This needs a professional repair..