First step to do when encountering a dead mobo

[anthrax0987]

Hello Badcaps members.

I would like to know especially the members out there with massive experience.

What is the very first thing to do or first thing to check if I've encountered a totally black out motherboard? I mean a motherboard without indicator.

With multi meter what is the first thing you always check? Something that is common faulty piece on the motherboard.

[mehtabbukhari]

Re: First step to do when encountering a dead mobo

Hi,

Step1: Take out Battery
Step2: Connect only the Adapter after checking its DC OUTPUT with a multi meter
Step3: On motherboard check for 3.3V & 5V on primary regulator.

[inflex]

Re: First step to do when encountering a dead mobo

First step... look over the board with a magnifying glass, checking everything - look for your clues, water damage, thermal damage, physical damage.

[mehtabbukhari]

Re: First step to do when encountering a dead mobo

Yeah, that is correct, I agree with BRO (Inflex). Physical inspection can save you lot of efforts.

[inflex]

Re: First step to do when encountering a dead mobo

Yeah, that is correct, I agree with BRO (Inflex). Physical inspection can save you lot of efforts.

Of course, when nothing shows up... then you start to wonder if it's going to be a nightmare job

Definitely these days you want the schem and boardview.

[tablet3rs]

Re: First step to do when encountering a dead mobo

i usually start in

- charger
- charging port
- fuse
- inductor (for short)
- vreg3/5

[mikail13]

Re: First step to do when encountering a dead mobo

everybody is right.

https://www.badcaps.net/forum/showthread.php?t=56504