Datasheet for the TPA6047A4, a Texas Instruments stereo audio power amplifier, provided as a 1.98 MB PDF. Amplifiers of this type drive internal speakers in laptops and similar devices. The document details pin assignments, supply range, shutdown and gain control pins and a typical application circuit. Use it to diagnose missing or distorted speaker sound by checking supply voltage, the shutdown signal and output pins, and to judge whether the chip itself or its surrounding components have failed.
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