Question about Sanyo Televison & Video
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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Posted on Jan 02, 2017
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