SOURCE: LG flat screen TV speakers make a vibrating noise
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!
SOURCE: just hung sony 46''flat screen tilts slightly measurements =
this is quite common on older houses/buildings and on occasion newer ones aswell, when a house is built a decent carpenter keeps his building fairly level, usually within 1/16th of an inch, but there are times when this exceeds 1/16th of an inch, personally i'v seen houses being built where the whole foudation is off 1/2 inch or more end to end, and on older buildings as time goes by the foundation "settles" into the ground, depending what it was built on the whole building could settle further on one end of the house than the other, this can cause cracks to form in foundations. So if your tv is "level" (be sure to try another level) and your measurments are out, this usually means your house or building isn't level or the surface which you are measuring from isn't level. But be sure to try 2 or more levels to ensure the TV is in fact "level", hope this helps.
Testimonial: "we came up with this too-my dec'd Dad a master bricklayer built this house- never made mistakes, glad to know is house settling & not my house thanks"
SOURCE: i have a sony 40 inches bravia flat screen hd and
Could be the decoder:
1. unplug the TV ans wait a few mins.
2. If you have digital cable box or dish tuner reboot those as well (likely your issue)
What you have is artifacting what that means is tiling garbiling and freezing this happends when the data in the digital stream just stopped hence Frozen.
Try those things rule out your cable tv box first or your sat box, if this is OTA over the air your antenna.
1. Try DVD's if it happends during a DVD you do have a decoder issue if it does not you need to talk to your cable tv or sat operator.
So you got 3 possiabilites here 1. the worse Decoder, 2 cable company or satalite provider, 3 your antenna is in the wroung position.
I sure this will help.
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620
Testimonial: "i just hope this works"
SOURCE: I have a sony bravia 46 inch flat screen that gets
had what sounds like the same problem. we had the protection plan and called for assistance. he advised us to unplug the tv for 1 minute. when we plugged back in, problem seemed solved. he could not explain why other than to check online with sony for more technical info about this remedy. stay tunned for whether it was a temporary fix......
SOURCE: 46 inch Sony flat panel lcd has vertical red and
If the screen works for a short while and then completely fails once the TV warms up you have a problem with the main unit video board or the LCD control logic board. Most often if the picture cuts out but audio continues to work the logic board is over heating and should be replaced. However if the picture cuts out and audio shuts off as well then its your video input board.
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