Tag Laptop Repair Guide

Asus notebook X550CC motherboard boot light is on without display. I used an ASUS X550V model with a unique display.notebookIn the past, I just put it aside when I didn’t turn it on. Later, after a while, I recovered myself.…

Quick maintenance of HP zhan66 plug-in power supply and black screen shutdown The single battery of HP 66 PRO14 G2 works normally, the power supply is turned off with a black screen, the single power adapter is turned on without…

Maintenance of ALC3240 sound card The sound card only outputs sound in the left channel, and there is no sound in the right channel, and the sound is too small to be heard clearly. I take apart the machine and…

First, the CPU power supply and the main memory power supply are not short-circuited, so the CPU power supply 1.3 and the main memory power supply 1.2 are normal.

Xiaoxin PRo13 is not powered on for maintenance. Model: Xiaoxin PRO13 Fault: No power supply. Overhaul process: the colleague next door sent Xiaoxin PRO13 2020 for repair, saying that it could not be turned on and needed urgent treatment. Visually,…

When we measured the condition of the CPU power supply tube, we found that the 12V voltage from the main board was pulled down to 0.6V after passing through a resistor, which is definitely wrong. The specific maintenance process is as follows:

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…

applenotebookA2141, the fault is that the fan can be turned on or off and not displayed. When the motherboard was removed and powered on, it was found that the current was set at more than 200 mA, and the fan was always turning. The voltage of each inductor of the motherboard was measured, and it was found that the GPU power supply did not come out. How to repair it next, and then read the following!