Acer Aspire E1-571

[dspok]

Hello,

I'm having problem with Aspire E1-571. It turns on with battery but won't turn on with ac adapter.
I tried my best couldn't short out the problem.

I have attached schematics as well.

Please somebody help.

[atsio]

Re: Acer Aspire E1-571

Have you checked pq8, pq9, pq10? What is the voltage on their pins with power supply connected?

[dspok]

Re: Acer Aspire E1-571

PQ8 Drain, PQ9 PQ10 Pin 4 = 17.81v
PQ8 Source, PQ9 PQ10 Pin 1, 2, & 3 = 17.8v
PQ8 Gate = 4.3v
PQ9 Pin 5,6,7,8 = 18.4v
PQ10 Pin 5,6,7,8 = 0.2v

[atsio]

Re: Acer Aspire E1-571

Have you checked with another power supply?

[dspok]

Re: Acer Aspire E1-571

yes, tried multiple adapter & power supply.
Even battery is not getting charged.

[atsio]

Re: Acer Aspire E1-571

Remove PQ9 and PQ10 and test them.
Check resistance to ground on pads 5,6,7,8 of PQ10 without power supply connected.
What is the voltage on pin 20 of PU4?

[dspok]

Re: Acer Aspire E1-571

PQ9, PQ10 seems to be ok.
Resistance to ground pins 5,6,7,8 of PQ10 is 19ohm
there is no voltage at pin 20 of PU4.

[atsio]

Re: Acer Aspire E1-571

Check pd6 and better remove it and check pin 3 for 19v.

[dspok]

Re: Acer Aspire E1-571

sorry there is o.39v in pin 20 of PU4, very strange voltage.

[dspok]

Re: Acer Aspire E1-571

PD6 VIN is 18.4v
PIN 1 is 0.39v

[borbooroski]

Re: Acer Aspire E1-571

I'm having problem with Aspire 5250-0468. It turns on with battery but won't turn on with ac adapter.
I tried my best couldn't short out the problem.

[atsio]

Re: Acer Aspire E1-571

I'm having problem with Aspire 5250-0468. It turns on with battery but won't turn on with ac adapter.
I tried my best couldn't short out the problem.

Open a new thread

[atsio]

Re: Acer Aspire E1-571

PD6 VIN is 18.4v
PIN 1 is 0.39v

Did you removed and checked pd6?
If no, remove it and check resistance to ground on pads 2 and 1. Remove and check pc31 and pr47.
With all of them removed, check resistance to ground of pin20, PU4

[borbooroski]

Re: Acer Aspire E1-571

I cant locate all of it on the board can you please help me locate them?

[atsio]

Re: Acer Aspire E1-571

I cant locate all of it on the board can you please help me locate them?

It is not for you to check. As I've posted, please open a new thread with your problem

[borbooroski]

Re: Acer Aspire E1-571

Please I dont know how to post my own thread please kindly help me

[dspok]

Re: Acer Aspire E1-571

Did you removed and checked pd6?
If no, remove it and check resistance to ground on pads 2 and 1. Remove and check pc31 and pr47.
With all of them removed, check resistance to ground of pin20, PU4

Tons thanks mate, I managed to fix it.

[ghojariya abdul]

Re: Acer Aspire E1-571

hi guys,
in my case i had change pq9,pq10,pq11, and laptop on on adaptor.
its working fine ...
thanks Atsio..