Guide

ASUS VivoBook 15 M513U dead, no power, motherboard

ASUS VivoBook 15 M513U dead, no power, motherboard repair – How to identify the main power rail

#ASUS #VivoBook #M513U #dead #power #motherboard

“Electronics Repair School”

UK Ebay store:
US Ebay store:
WebSite:
Patreon support:
YouTube Members:
Forum:…

source

 

To see the full content, share this page by clicking one of the buttons below

Related Articles

24 Comments

  1. I have been working in repairs for 40 years and 20 in microcomputers, sometimes you have to face unpleasant situations, where they tell you that charging for a shorted capacitor is theft. Sorin apparently shows that it was easy to find the defect. But it is not like that, you have to know exactly how switched sources work, where to measure, how to inject and have a thermal imaging camera. Without that camera the work would take a little longer. Those who do not respect the work of others should be deleted as clients. There are faults that are much more difficult to resolve, which can sometimes take more than a day of work. What is charged is an average value that compensates for the time, investment and enhancement of a machine that was useless until its repair. Sorin comes from a country where there are very limited resources and where everything must be repaired as possible.

  2. Eletrolytic capacitors in these power stages aren't used as bypass for unwanted signals. That's why there is a ceramic one connected in parallel. These big capacitors are there mainly to absorb voltage surges or to provide the power needed in case of a sudden voltage drop. For that reason these capacitors MUST ALWAYS be replaced. Not replacing this capacitor can possibly lead to system instability or even another hardware fault.

  3. Hi Sorin, I hope you will find time in one of your future videos to explain how to identify main power rail. In your videos you just open the laptop and immediately check for shorted main power rail somewhere in the middle of the board. This is not clear to me and perhaps many of your viewers. It is obvious that main power rail will be on the first current resistor (the closest one to the charging port), but how do you know which is main power rail somewhere on the board?

    Thank you for all you're doing for the community.

Leave a Reply