Dear members,
Recently, I watched this nice video:
www.youtube.com/watch?v=XBAn2Ck8GeE
I have experienced such a failure many times in laptops.
He replaced the Mosfets and the controller of a buck-converter in one go. But then after powering the laptop on, the new Mosfets burned again.
What are the popular causes of the repair failure in this video?
note: after removing the coil, he measured that the circuit is not shorted after the coil. only the circuit before the coil was shorted.
Thanks
Recently, I watched this nice video:
www.youtube.com/watch?v=XBAn2Ck8GeE
I have experienced such a failure many times in laptops.
He replaced the Mosfets and the controller of a buck-converter in one go. But then after powering the laptop on, the new Mosfets burned again.
What are the popular causes of the repair failure in this video?
note: after removing the coil, he measured that the circuit is not shorted after the coil. only the circuit before the coil was shorted.
Thanks