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Another car radio with a very common problem - there is no sound in any channel. The reason for this is a burned-out ULF chip, and this time not some kind of TDA chip, but a branded pioneer microchip, which costs more than ... some kind of TDA chip. In the video I will show how to detect a malfunction using an oscilloscope, as well as several indirect signs indicating a malfunction of the amplifier microcircuit, which will help identify the problem if there is no oscilloscope.
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