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Power amplifier board voltage is high, the LED indicator burned

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antonio_clinton
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Power amplifier board voltage is high, the LED indicator burned, the test voltage of 17V, with a multimeter test voltage regulator diode voltage 17 ~ 23V, can not find the reason, I hope someone can help answer.
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A antonio_clinton

Power amplifier board voltage is high, the LED indicator burned, the test voltage of 17V, with a multimeter test voltage regulator diode voltage 17 ~ 23V, can not find the reason, I hope someone can help answer.
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pradeepkumar
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