Didn't burn out the USB on the z570 or is it not so bad?

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Nullman2015-03-17 09:18:56

USB

Nullman, 2015-03-17 09:18:56

Either he shorted out, or briefly applied a lot of voltage, but the usb port on the lenovo z570 fell off. I measured the voltage = 4.3 V, applied power from the second usb and it worked. What could be? Stabilizer?

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2 answer(s)

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Vladimir Martyanov, 2015-03-17
@vilgeforce

There could be some kind of protective circuit.

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Nullman, 2015-03-19
@Nullman

As an option, I closed pins 7 and 6 on the mikruh with a drop of tin, which controls the power to usb. Analog TPS2062 www.ti.com/lit/ds/symlink/tps2061.pdf