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原帖由: Paul Tulip ,

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Well guys.. It wasn't the ic chip.. After replacing the mic a third time I still had no sound, but if you blew across the mic it you could hear the wind, but still wouldn't pick up sound from voice which me think the it was a faulty mic, so I replaced it a fourth time ensuring that the board was at the melting point of the solder just before placing the mic, and a very quick blast of heat fixed the mic in place.. and this time it worked!! So turns out that the mic's are very sensitive to too much heat and possibly flux as well..

Thanks for you advise guys, much appreciated

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