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I have a thomson 28WH201S widescreen tv. after being on for a few hours it develops a high pitched whine which I usually get rid of by pulling on the arial lead or wedging something between the case and the arial plug

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This is usually caused by a leaky or noisy diode.
take set apart and make a funnel from a piece of paper, and try to pin point your sound. then try to carefully more or bend the part a lil till the problem goes away, if you cant get it to stop. then you will need to replace the part.

Posted on Apr 10, 2008

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High pitch whine when tv started then it lowers in pitch


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

Apr 04, 2012 | Projection Televisions

1 Answer

I have a Samsung HL-R5677W TV set and now there is no picture at all. Every time you power on the TV the green light flashes and you hear this sound that repeats itself. It sounds like a camera flash, low...


I have a few questions which will determine what your problem may be.

Did or does the set make a high pitched fan like sound or a high pitched whine?

What have you examined so far?

As far as a lamp it is unlikely it will cause such a sound but if you remove it look to see it is intact and not shattered.

Let me know

SD TECH

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1 Answer

I have a Hitachi Ultra Vison 57S700 2004 model, the TV has had a slight high piched whine for a couple of weeks and today the screen went green then black and the sound was gone. When it is turned on the...


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.

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1 Answer

I have a samsung hln507 and there is no picture. we start the tv, it has a high pitched whining sound, the fan and the color wheel are spinning, but there is no picture. after about 10 seconds the tv turns...


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.

Oct 16, 2010 | Samsung HLN507 50" Rear Projection...

1 Answer

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The color wheel is the most likliest cause of that. Replace the color wheel.

Apr 01, 2010 | Projection Televisions

1 Answer

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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.

Oct 23, 2009 | Projection Televisions

1 Answer

D52w23 rca makes an awful loud high pitched whine


This is a coil, now a NOISY coil.. It is a common problem, and happens often. The whine is caused by current passing thru the copper windings and making them vibrate! A commonly accepted repair for this situation is to squirt some regular old super glue into the copper windings and let it harden for a few minutes..Viola! no more whine!

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1 Answer

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Check Sears or partstore.com for a color wheel.  I like sears for experimental replacements since they allow easy returns.
BTW, mine is an early 61".  My color wheel was replaced when I had to replace my Light Engine.  My in-laws 50" was an early one and theirs went out within 2 years.

Jan 06, 2009 | Samsung HLN5065W 50" Rear Projection...

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High pitched whine


Ok maybe this may help .... there is a coil LL08 I believe... somtimes it creates a high pitch whine like you describe.. its stands up on the deflection board..it basicaly a large coil of copper wire....you can take silcon and put on the coil...in effect damping the ocillations...hope that might help

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