Over time, this high pitch noise would sound until the set warmed up, but now it is constant. It is not the fan, because the set only emits the sound when the lamp is lit, and the lamp seems to be source of the noise, if not the cause. Could this be the lamp itself or some other component? The audio also takes a long time to come on, but this seems to be a separate, unrelated issue.
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Oct 3, 2009 - 30 posts - 7 authors
Its so high pitched that some people can barely hear it, but I guess I have sensitive hearing. ... Anyway, this seems to be a fairly common issue and it is caused by either the ... You're probably hearing a transformer humming.
Dec 30, 2008 - In my case, the monitor was fine for the first two months. But then started making a buzzing noise... 1) when on, 2) worse when .... my Samsung TV ismaking high pitched noises even if its turned off. I will NEVER EVER EVER ...
Hi, It seems color wheel problem in your tv that gets problem after some time and you hear high pitch noise along with picture flicker. Color wheel need to be replaced to solve this issue. Required color wheel is available with PartStore.com (click to view image of part and price info) and it is job of qualified tv repairman because light engine will take apart for that. Hope these info will help you. Thanks.
The tv have a colors wheel,have a whinning high pitch sound,mean colors wheel is warping not spinning right any more.The colors wheel is dead,must be replaced.The tv have high pitch sound,shutdown the projection lamp.The projection lamp might be dead or not?Not yet determine dead or just shutdown by the nonfunction of the colors wheel.
Read one of my posts:
I used a hairdryer and blew hot air into the grill on the bottom of the subwoofer enclosure which reduced the delay time from ~1hr to 5 minutes. (The high pitched noise was still there for about 1-2 minutes)
hi there high pitched noise form the set indicates that one of the coils inside the set are lose this happens with age and heat the coils are made of copper and are tightly glued or soldered together and can be as small as a bit of hair of as big as a pen tip the problem is that the coil is now vibrating which is causing the high pitch sound and sound be quite easy to identify with a good ear!
sometimes these can be sorted with a quick bit of solder to hold it in place on the main bord of where the coil is, but some times there is no cure due to very small braiding of the copper wire any attempt to solder may cause damage and breakage,
You may be able to replace the coil with another one from a good components store with the same value best thing is to take out the noisy coil and take it down to be replaced
the reason it appears worse when first turn one is that the coil is cold and vibrates alot more just like when the set is warm the coil expands like most metals do which stops it vibrating so much
I think its the flyback and its starting to leak. this is a component responsible for the high voltage of your tv set. always observe safety in dealing with this. Have it check by a qualified technician. Good luck!