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Category Blog

Desktop PC Repair Guide

Power-off repair immediately after triggering of Gigabyte B75-DS3V

After the triggering of Gigabyte B75-DS3V, power down immediately, replace the TQ9, or remove the TQ8, and the fault is removed.

lqy01
2022-12-16

Smartphone & Pad Repair Guide

Huawei glory 20i mobile phone screen display backlight does not light repair

It is found that the resistance value of LED3- to ground is abnormal. Remove the IC, test the two places with buzzer, and make sure the motherboard is disconnected. Fly the wire directly, install the IC, and the resistance is normal. Installation test, lighting is normal.

zll
2022-12-15

Desktop PC Repair Guide

Gigabyte GA-H110M-DS2V REV: 1.0 Very fast repair when power is off

Gigabyte GA-H110M-DS2V REV: 1.0 Power on and power off are very fast. Remove the two capacitors OBC15 and OBC16, and find that 2_ The resistance of 5LEVEL to the ground increases a lot. The resistance at both ends of OBC15 is measured, while the resistance at both ends of OBC16 is infinite. The OBC15 is not installed directly, and it is OK to turn on the machine.

lqy01
2022-12-15

Laptop Repair Guide

Repair of dark screen of Lenovo Xiaoxin Air 14IKBR notebook computer

Lenovo Xiaoxin Air 14IKBR laptop has a dark screen, traced it to Q1, measured the breakdown short circuit of 2-3 pins, removed the corresponding Q1 tube and insurance on the material board, and turned it on perfectly after the replacement.

yx
2022-12-15

Smartphone & Pad Repair Guide

Redmi Note8 Pro mobile phone consumes power quickly, and its battery is not durable for repair

Redmi Note8 Pro mobile phone consumes a lot of power and its battery is not durable. After the NFC chip is removed, the motherboard no longer leaks electricity, so the chip is replaced and the fault is repaired.

zll
2022-12-14

Blog, Laptop Repair Guide

Repair of HP G6 notebook without startup

Lay down the chip value and find that several pin values are abnormal. Measuring the upper and lower tubes shows that the extreme values of G and S of the upper tube are 50. Replace the chip and the upper tube. Power-on standby is normal again, 0.014A triggers 0.073A is normal, the machine is powered on, the machine is turned on perfectly, the fault is eliminated, and the maintenance is over

yx
2022-12-14

Desktop PC Repair Guide

Mine card P106 short circuit repair

Mine card P106 was short circuited. Because the 5V feedback resistor was knocked off, the feedback was abnormal. Then the 5V chip generated 12V, which damaged the core power supply composite tube and pex power supply chip. The chip fault was repaired.

lqy01
2022-12-14

Blog, Smartphone & Pad Repair Guide

Multi-fault Maintenance of Huawei P10 Mobile Phone Headset Mode

Huawei P10, fault description: it is damaged during normal use, unable to turn on the flashlight, unable to take photos, unable to wake up, mobile phone headset mode, unresponsive and other faults. Decisively disassemble the screen, deduct the fingerprint, test OK, and solve all the faults.

zll
2022-12-13

Laptop Repair Guide

Lenovo Y700-14ISK notebook screen does not show repair

Lenovo Y700-14ISK notebook screen does not show repair Machine model: Lenovo Y700-141SK notebook Main board number: LA-C951P REV1.0 Malfunction: The notebook screen does not display. Maintenance process: A Lenovo Y700-14ISK notebook, the fault is that the power indicator lights up,…

yx
2022-12-13