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Proscan 36 inch lost sound

There was no problem with the tv this morning, but this afternoon when I turned it on, there is no sound. I tried unplugging it and checking all of the cable connections but still no sound. Any suggestions?

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Check to see that the set is not in the SAP mode, or if the sound is muted, or of the speaker option is turned to OFF. You should find all of these functions in the user setup menus. Refer to the operation manual for details.

If there is still not sound, see if you have the sound from one of the A/V inputs, or if from the tuner. If it is missing from the tuner section, then the failure can be in the IF or sound decoder, or the input select switch circuit section.

If the loss of sound is from the A/V input but you have sound from the tuner, then the problem can be from the input select circuit, or probably from the Audio side of the input amp section.

If there is no sound at all, then the sound fault may be from the audio output section, or something along the patch back to the input control switch circuit.

The last thing it can be is corruption in the firmway program that is contained in the EPROM of the set.

If the problem is not a user fault, the set will require shop service to correct the fault.


Jerry G.

Posted on Apr 19, 2008

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