Question about Sanyo DS27590 TV

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No Audio Recently I relocated my TV. It seems during relocation it was not handled properly resulting in audio loss. I opened the TV and found that the 4 pin socket that had connections from the wires coming out of the two small speakers in the bottom left and right corner was disconnected. I connected this socket back, but still the sound does not work. I am not a TV experts,but can work around basic stuff.

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Most likely it pulled hard enough to cause some bad solder connections on the botton of the 4 pin...try to unsolder and resolder the connector and reconnect the speakers this should fix you up.

Posted on Feb 05, 2008

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I have an rca ctc186/7 series tv and it has no sound. We tried cleaning it, hooking other speakers to it and hooking up a dvd player and still no sound.


Hello

The audio output Ic inside your tv has damaged, or it doesn't get proper voltage. You just open your TV, and locate the audio output Ic. It can be located by following the speaker wires. Usually it will be screwed onto a heatsink. Check the input voltage with the help of a multi meter, af it is there, the Ic is damaged. Replacing it will solve the problem. If there is no voltage, follow the supply track and find out the opened circuit point. Usually a small value resistor, say 0.01Ohms in value, will be connected in series with the power supply to Ic. If it gets opened, there will be no supply to Ic, resulting no sound. If the audio outpu Ic get short this resistor will open. So keep in mind that, if this resistor is opened, there may be a short inside the output Ic, or come capacitors fitted with this supply line, after the reistor. Check the also for any short. keep a keen look at the solderings fo the leges of this output Ic. Some loose, or bad solderings also may be there. Anyway, your TVs audio output section is faulty. Find the reason and rectify it. If audio Ic is found defective, desolder it out from the board, and replace it with a same type and number. Ok

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2 Answers

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