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HUMANTORCH50
Level 7

TLC Roku tv making high pitched sound

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I recently got a TLC 40 inch Roku tv for Christmas. I have set it up but I can hear this high pitch sound coming from the tv when I’m watching movies or playing a game and I don’t know how to fix it. I have tried unplugging, restarting it, and even tried switching the audio settings but it does nothing. So I don’t think it is coming from the speakers. But I don’t know how to fix it.

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RokuDanny-R
Roku Employee
Roku Employee

Re: TLC Roku tv making high pitched sound

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@HUMANTORCH50 

Thanks for the inquiry.

Have you tried contacting TCL support yet to inquire further? I'd suggest starting there to see what options or suggestions they can provide. 

You can reach them here: https://support.tclusa.com/televisions or at 1-877-300-8837.

Please keep us posted.


Thanks,
Danny

Danny R.
Roku Forum Moderator

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RokuDanny-R
Roku Employee
Roku Employee

Re: TLC Roku tv making high pitched sound

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@HUMANTORCH50 

Thanks for the inquiry.

Have you tried contacting TCL support yet to inquire further? I'd suggest starting there to see what options or suggestions they can provide. 

You can reach them here: https://support.tclusa.com/televisions or at 1-877-300-8837.

Please keep us posted.


Thanks,
Danny

Danny R.
Roku Forum Moderator

View solution in original post

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signal34
Level 7

Re: TLC Roku tv making high pitched sound

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Has to do with the input panel.  I had the same thing happen on my 75R615.  They had to swap the mainboard out.

But be careful!  The board they swapped for me was inferior to the original one.  My picture when I bought the TV was outstanding; now, it is blurry with lots of motion artifacts, and the blacks are so deep that I have to turn brightness and contrast all the way to 100% just to see the picture, which washes almost everything else out when it goes from a dark scene to light.  I wish I had taken a note of the board part number before the swap to compare.

I just put in another request for them to swap this board out.

KGreene
Level 7

Re: TLC Roku tv making high pitched sound

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I hit the RESET BUTTON at the top, right above the cable connections on the side. Went through the setup instructions.  No more high pitch noise.

gaflaxm
Level 7

Re: TLC Roku tv making high pitched sound

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I have the same issue, with my 75" 6series I just purchased, it occurs when I first turn on the TV.

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asdf1234
Level 7

Re: TLC Roku tv making high pitched sound

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Try turning the brightness on the TV down. I just bought an 8-series that had the same problem. The brightness level is set to the brightest by default. I turned it down and the high pitched, buzzing noise stopped.  

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Deek
Level 7

Re: TLC Roku tv making high pitched sound

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Update: The squealing I was getting  was actually coming from my cable settings and playing over the speakers on the TV. So i turned off Dolby sound settings through my cable box and that stopped the loud squeal.

GM559
Level 9

Re: TLC Roku tv making high pitched sound

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@signal34 wrote:

Has to do with the input panel.  I had the same thing happen on my 75R615.  They had to swap the mainboard out.

But be careful!  The board they swapped for me was inferior to the original one.  My picture when I bought the TV was outstanding; now, it is blurry with lots of motion artifacts, and the blacks are so deep that I have to turn brightness and contrast all the way to 100% just to see the picture, which washes almost everything else out when it goes from a dark scene to light.  I wish I had taken a note of the board part number before the swap to compare.

I just put in another request for them to swap this board out.


I think this may be the problem with my 75S535.

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