I've removed the chip, now I got 150 Ohm instead of 0.2 Ohm between pin1 of PQ20 and ground, it still seem low ? Is it worth replacing this chip ? Thanks
PS : When I plugged the charger it doesn't go into short

Hi,

First : I've got a SMD rework station, thermal camera and good soldering station

This is my first "short" motherboard repair, this laptop was 25€ so no loss, it just for learning. I want to learn how to fixed board because I want this to become my job.

I've been fixing electronics for 15+ years, but mostly VCR and camcorder.

So, I checked power adapter pin to ground, no short, then I plugged the charger in, light on charger blink indicating short.

PQ19 mosfet got HOT straight away (viewed on thermal cam). Checked,...

Re: New Members - please post your introductions here

Hello, my name is Nicolas and I'm 23 yo. I'm a sysadmin. I've been collecting and fixing vintage electronics equipment (not only computers, but most of it is) for the past 12 years or so.

Couple years ago, I've decided to try to go the extra miles and not only replace bad caps but also try to find & replace faulty component.

I'm also an electronics hobbyist and have a few equipment I acquired (or was given to me) over the years (digital Rigol oscilloscope, HP function gen, Weller soldering iron,...