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Category Laptop Repair Guide

Laptop Repair Guide

Repair of ASUS FX63V notebook switch after power failure

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VCC was not found when testing ALL_SYS_PWRGD,shorted to ground was found when measuring pu12 6#, and C223 damage was determined by Current heating test.diode value returned to normal after C223 was removed, and PU12 was welded back. After power-up, PU12 6# output a stable 2.5V, and the machine was no longer auto power off.

Apple MacBook Air a1466 laptop cannot be started for maintenance

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Apple MacBook Air a1466 notebook can not start SMD REWORK STATION. Remove this IC. Both PCB and IC pin6 are corrode Oxygenation. It seems that VIN 14.85v is not fully input into lt3470 pin6.Handle IC pin and PCB PAD, solder back lt3470 and blow off resistor Capacitor.Power on test returned to normal VCC 3.42v.Install the motherboard back into the c-shell, power on, boot into the system.

Repair of Dell G3590 laptop card

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First use multimeter to measure and check the drawing. It is found that when the 1.8V display card core is VCC en pin(36 pin), the PWM chip ordered on the Internet arrives and the chip is replaced. After that, the display card runs normally after the machine is repaired and the maintenance is over.