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I have a Sanyo AVM-3256 32" tv there is no sound and I have checked the speakers the speakers are fine I dont know what else to check

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Is there an audio jack socket at the back? If there is try plugging in an hi fi and see if audio is available. If it is, the problem lies in the audio power amplifier section of the circuit board. With a voltmeter, check that the audio amplifier chip has a supply voltage to the chip. If it has, at the right level, you will need an oscilloscope to check the input signal to the amplifier. Or simply gently tap the input with a screwdriver and if you have a crackling noise from the speakers your audio amplifier chip is ok and the problem lies further downstream.

Posted on Aug 02, 2009

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1 Answer

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This set is very popular for the capacitors to dry upa and go bad in the main SMPS as well as the switching power supply. If you have no know how on how to test capacitors or solid state electronics please take the set into a repair shop for an estimate

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