Category Laptop Repair Guide

The nh-50hp of Shenzhou, the customer said that it would not be turned on after installing a sound card. The test found that it would not be powered off without installing a cpu fan, and it was detected that there was something wrong with the temperature control circuit of the cpu circuit. The ntc resistor above was normal, but the resistor below was missing, which made it impossible to divide the voltage in series. The specific maintenance process was as follows:

Xiaoxin NM-D231notebookDon’t turn it on Plate number NM-D231 XiaoxinnotebookThis machine is equipped with a unique display, but it won’t turn on or charge due to a fault brought by a colleague. When it is plugged into the C port power…

This machine is a second repair machine sent for repair by peers. The fault is that it does not start, and it can be started only after being repaired as required. The specific maintenance process is as follows:

Lenovo Xiaoxin 15 2019, the fault is that the CPU down frequency locks 0.4GHz. This kind of frequency reduction and frequency locking is usually caused by a problem with PROCHOT's signal. We can find it directly.blueprintTo determine the signal position to repair, how to operate specifically, see the following detailed explanation!

Gigabyte 2080Ti doesn't display it. After the graphics card is removed, check the resistance of each inductor first. No problem is detected. The current can only be up to 000 mA with the conversion board. This current core is not working, and the voltage is measured when it is powered on ......

Lenovo rescuer Y7000P, power on and power off after triggering. Generally, when you get a computer, first disassemble the motherboard, and then measure the major inductance resistance of the motherboard to see if there is any unreasonable place for maintenance. Let's take a look at the detailed explanation below for the specific operation!

HP TPN-C133notebookNon-startup maintenance “Machine model” HP TPN-C133 【 Fault phenomenon 】 There is standby current, which does not trigger. [Maintenance process] After receiving a machine that is not triggered by HP Light and Shadow Wizard TPN-C133, first remove the motherboard…

ASUS X55JX does not trigger from time to time (poor standby power supply of bridge) “Fault model” ASUS X55JX “Fault phenomenon” does not trigger from time to time [Maintenance process] I received a machine sent by a customer for repair,…