Acer E5-411 shorted

[String2016]

I have here acer e5-411 DA0ZQMMB6H0 REV:H motherboard, the problem is shorted 19v rail , when i tried inject voltage on PQ22 pin 3 PU2 IC is very hot, tried replacing the ic still same issue when injecting voltage very hot, the problem with this is plugging charger then charger lights goes off, anyone can help on this

[mon2]

Re: Acer E5-411 shorted

With power off, meter in resistance mode, what is the resistance of the 19v rail (input) to ground?

Is your charger suitable for this box and can supply the required current?

Some over load event is causing the external power supply to shut down.

[mcplslg123]

Re: Acer E5-411 shorted

Remove PU2 and PR19. Now measure resistance on both pads of PR19. Inject voltage on the shorted pad and findout what is shorted. Simple.

[String2016]

Re: Acer E5-411 shorted

if i removed pr19 and pu2 short is gone not taking current on pr19 both sides , if i removed pr19 only and inject pu2 still very hot

[mon2]

Re: Acer E5-411 shorted

https://pinoygsmhardware.blogspot.co...fixed.html?m=1

[piernov]

Re: Acer E5-411 shorted

Short to ground is most likely on VSYS.