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IN LG TELIVISION USING TDA 9370PS N3 1774 THE VOLTAGE AT THE COLLECTOR OF H DRIVER TRANSISTER BECOME 0

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Disconnect the base of horizontal drive transistor, and now check it collector voltage. If it is found OK; [almost equal to its iput voltage]; check the voltage that comes to its base, from the IC pin. It should be below 0.1 to 0.25V. If found higher than this, the IC is faulty. If you wish to get some details, check the site linked here. http://electronicshelponline.blogspot.com/ Pull up older posts.

Posted on Jan 02, 2014

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