[br]
Hello,
My Toshiba [http://www.toshiba.pt/discontinued-products/satellite-l50-a-1cu/|L50-A-1CU] (I think the USA version is [https://support.toshiba.com/support/staticContentDetail?contentId=4004714&isFromTOCLink=false|S55T-A5161]) is not get any power at all.
Usually when I connect the AC power the orange/white battery led turns on. Till yesterday at night it was working fine, today morning I pressed the power button and nothing ….
I did the following troubleshoot :
Changed the power adapter, measured the output voltage from power adapter and is 19V as expected, pressed the power button for 30s , pressed the 'reset' button reachable with a pin through a small hole on the bottom for 30 s , I also tried to power on without the internal battery just with just the AC adapter plugged and again nothing.
After all the basics steps for troubleshooting, I took apart all components and tested without RAM, CPU, Hard-drive, etc, just the motherboard and again no light or power .
So I started to measure the voltage across the board and I noticed that the voltage from the power adapter is 0 V (should be 19 V) . '''Then I realize that every time I connect the power adapter the voltage is going to 0 V.''' I tested the same power adapter in 2 laptops (one of them is same as mine) and is working fine. So I guess that some component from the motherboard is in short and is causing the power to cutoff in order to protect the board ...
Board reference : H000053270
Does anyone has any clue from where I should start troubleshooting on the motherboard ?
Any help would be appreciated