Address
304 North Cardinal
St. Dorchester Center, MA 02124

Work Hours
Monday to Friday: 7AM - 7PM
Weekend: 10AM - 5PM

Category Laptop Repair Guide

Laptop Repair Guide

Lenovo y400 notebook boot no response maintenance

660;IMG_262
Quickly dismantle the machine, first dry the standby 3 / 5V in the figure below, open the control MOSFET and force it on.Measure the standby 3 / 5V VCC OK, then test the standby and reset of EC, and then check the EC reset is low, and hit 3V linear waveform.The fault caused by the 3V line current of change has been eliminated, and then the 3 / 5V is also current of change. First, disconnect the 3 / 5V isolation point, and then turn off the 3 / 5V. Finally, replace the two pairs of MOSFET of 3 / 5V and power on booting up to remove the fault.

Repair of alien p18e laptop without charging

452;IMG_260
After disconnecting the resistance and capacitance connected with the charging chip, it returns to normal, and the resistance and capacitance measured separately are normal. Since CSSP passes through the hole from here, the original resistance pin is disconnected, and the flying wire is re welded. After the flying wire, the CSSP and CSSP voltage return to normal, install the machine, enter the system, and the charging is normal.

Lenovo rescuer y7000 battery does not charge and mechanical revolution x9ti does not show maintenance when starting

622;IMG_257
The Savior is the battery does not charge, the mechanical revolution is to use the charger and battery at the same time boot does not show.Dismantle the machine and directly find and disconnect the two resistors pin, find a 2m resistor on nm-c371 Parts motherboard, and a 133k resistor on apple Parts motherboard. Install the machine to test and repair the fault.

Troubleshooting of ASUS k43ly notebook no power on

If you don't plug in the CMOS battery, you can automatically power on booting up. If you plug in the CMOS Switch pin,VCC will be pulled down, and the pwrbtn pin of EC will be tilted up, and then you can click EC alone. Unexpectedly, if you succeed at one time, you simply fly out of the wire and connect to the original circuit. The maintenance is finished.

Repair of z7m-ct7gs laptop screen not on

446;IMG_259
The z7m-ct7gs laptop of Shenzhou Zhanshen is not on, and the LCD VCC is 0.6 abnormal.Find the place where VCC was produced. After careful observation, it was found that the appearance of a 40.2k voltage divider resistor R524 was abnormal. It was directly broken with tweezers and replaced decisively.