TV makes a continuous distorted vibrating kind of noise...

Get a compressed air can and blow out the back of the tv. Should fix problem. If it still does it the you should make sure it does it on all tv ports making sure it does it on other hdmi, rca, ect.. If problem is still ther after checking that you need a new sound board.

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_a3369546f8067589

Hello
The audio output section of your TV has damaged. The set need a through checkup, before replacing this board; especially to the voltage input to it, from the power supply board need special care.

1.The speaker coil(on the vibrating speaker side)is bad.Try putting the other speaker (from where the vibration is heard) and see if the same sound is heard,if yes- the channel where the vibration is heard(we call it distortion)that channel is having problems and is about to get worse.It will burn your speakers if it continue in that situation unless the problem is resolved.Most likely problem is the audio power amplifier is bad,bad filter capacitors(bulging top or leaky) or driver transistors.If it is ICs replace it,but check for bad filter capacitors still after you replaced the Power Amp IC.

Hi ,If you are experimenting hues,color distortion ,black and white picture,feel vibrations, it could be time to replace the color wheel.You can find it at discount-merchant.com

check your speaker speaker inside and check the capacitor inside too make sure they are good and working well.

the fan motor could be failing. turn it on with the top off. if one of the fans is moving slower, that'd be the one. since this is a dlp projector, the colorwheel motor berings might be on their way out as well. both need replacement.

I have this problem with my 37LG30.
They all seem to have the same factory flaw.
The plastic bezel and rear is vibrating against itself I have found.
Tonight, just now, I just took all the front bezel screws out,(from the back) loosened the other 4 big screws in the rear center(I don't recommend removing them)and loosened the stand screws also and tried separating the bezel from the back as I went around the set. This did not really help much except around the bottom where the noise/vibrating comes from-the speaker area.
The two plastic pieces are vibrating against one another.
The vibrating was coming from the speaker area without doubt.
The next thing was to try separating at the bottom where the speakers are with my fingers and a stiff metal nail file carefully..fingers seemed to work best for me.
As I separated the front bezel from the rear housing (at the speaker location)most if not all the buzzing/vibrating /distortion went away.
I then inserted small pieces of cotton (you can use felt, or similar I suppose) and buttoned it all back up;put the screws in
Almost all the distortion and speaker buzz/vibratingis gone except on very low frequencies.
good luck!

if the frequency of the sound changes more likekly you have a bad color wheel, if a certified service center is working whit it, call hitachi costumer service problably they will pay forr the light engine(where the color wheel is located)

Congratulations on the new bike, the whine could be the shaft drive, I've heard they can put a out a short duration whine as kind of a protest when there is a forced mismatch between engine and road speed that a quick deceleration can do. At 60 mph plus I'm wishing that there is one more gear to get into, but I don't find the vibration annoying. I think any bike at that speed will have vibration issues in the mirrors, as there is little mass to dampen it out. Its one of the reasons I switched to convex mirrors as I find there is less distortion.

noise you are hearing can be the fans inside with bad bearings and or what im assuming given the info you gave.More likely the motor inside the optics engine (color wheel) is making noise..This will also cause picture problems..very expensive to repair..