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Jack, Technician
Category: TV
Satisfied Customers: 8102
Experience:  40 years experience as audio,video repair and installation tech
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Our Toshiba 36" inch TV sounds keeps getting scratchy and we

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Our Toshiba 36" inch TV sounds keeps getting scratchy and we are unable to hear so we have to turn it off and turn it back on to stop.

Hello , my name is Jack
Perhaps I can help you with this problem but first i would have a few questions;


Is this tv connected to a cable box/converter,satellite receiver,digital converter etc ?
Do you have other equipment like a dvd,bluray,games etc. connected to this tv ?

If so , do you have the same problem on those ?

Customer: replied 2 years ago.

Digital converter from com cast. Yes we have DVD connected to the TV. Yes same problem on both.

O.k then could you please lookup your tv`s model number located on the back cover or owner`s manual ?
Customer: replied 2 years ago.




And you said that you just turn the tv off and on again and the sound is working again ?

If so , after you did turn it off and on again does it work for a while or do you have to repeat this every few minutes or hours ?

Customer: replied 2 years ago.



O.k and one last question ;


Did this problem start all of sudden or just slowly got worse , like the sound would get low and you had to turn up the volume or would get distorted after the tv warms up etc. ?


Customer: replied 2 years ago.

would get distorted after the tv warms up.


O.k then I`m afraid that this is a fairly common problem with the audio circuit on your TV's main board part # 75015755 .

This board cost around $220 to buy and that is when you can find it !

While waiting for your reply I did take a look as to where it might be available and so far could not find a supplier.


Right now I can tell you that this problem is caused by the audio output chip on that board but it does not affect the audio outs at the back of the tv .


Which means that beside replacing the main board , you could use those terminals labeled as "fixed audio out" to have the sound through a sound system for example.


Otherwise I`m afraid that the only other solution would be to replace that main board.





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