Category Laptop Repair Guide

Laptop Repair Guide

Asus A541U notebook can’t be turned on for maintenance after it is flooded.

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When the motherboard was removed, it was found that many parts of the motherboard under the corresponding keyboard had been corroded by water, which was more serious. There are two new situations, one is that the adapter of the regulated power supply head is not suitable, and the other is that the power-on key of this machine is integrated on the keyboard and cannot be removed, so temporary leads have to be welded on the motherboard.

Apple A1466 notebook does not start for repair

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Carry out mainboard test and maintenance, connect the power supply to test the power supply, and check according to the time sequence; It can be roughly judged that the problem should appear on the bridge side. It is found that the bridge does not emit PM_SLP_SUS_L, and it is abnormal to test 0V at the resistor R8190.