Acer Aspire 5520- No power

[olorin]

Hi!! I have Acer Aspire 5520.Suddenly showed me problem.The problem is: I press the power button but does nothing the Laptop.The led of the battery lights up red!
I removed the battery and tried only with the charger but still not open.I tried only with the battery but still nothing!

Measure the output of the charger and pulls out really the 19 volt who need ...!I tried with another charger but still nothing!

What can be wrong?
Thank you!Forgive me for my poor English!

[fddizon]

Re: Acer Aspire 5520- No power

http://www.youtube.com/watch?v=goFnh...vm3S0D7zw4mKuQ

[olorin]

Re: Acer Aspire 5520- No power

http://www.youtube.com/watch?v=goFnh...vm3S0D7zw4mKuQ

Thanks for the reply but I do not think I understood many of the video.

Do you know what specifically what to check?

[DejaVu]

Re: Acer Aspire 5520- No power

Try removing the battery, plugging in at the wall with the switch off (if possible), you just need the laptop 'earthed'. Not sure if you have switches on wall plugs in Greece.

Hold the power button for 30 seconds and try turning it on as normal.

Motherboards are notorious for holding static electricity which safe guard then from overloading. Earthing them and opening the circuit (holding the on button) clears the static to ground.

[olorin]

Re: Acer Aspire 5520- No power

Try removing the battery, plugging in at the wall with the switch off (if possible), you just need the laptop 'earthed'. Not sure if you have switches on wall plugs in Greece.

Hold the power button for 30 seconds and try turning it on as normal.

Motherboards are notorious for holding static electricity which safe guard then from overloading. Earthing them and opening the circuit (holding the on button) clears the static to ground.

I tried but nothing happened.
Measured it on some components in the motherboard and noticed that there voltages 19 V, 3.3 V and 5V

[fddizon]

Re: Acer Aspire 5520- No power

that is nice for a start...check power switch if you have standby voltage. normally 3v

[olorin]

Re: Acer Aspire 5520- No power

Αt 2 above pins measure 3.12 Volt
At 2 below pins measure 0 Volt

[JoeyJoe]

Re: Acer Aspire 5520- No power

Those laptops have an over heating problem. I used to buy 10's of these from ebay all the time and fix them, problem is that the problem WILL come back within a couple of months.

You will need to reflow the GPU chip.

[Dumah Brazorf]

Re: Acer Aspire 5520- No power

If it's not the gpu it could be the nVidia chipset (if have one) to reflow.

[olorin]

Re: Acer Aspire 5520- No power

Thanks guys! Ι reflow the nVidia chipset(has not another chip the motherboard) and the problem was solved ...Now how will keep not know!

[jtamad44]

Re: Acer Aspire 5520- No power

if you want long lasting fixed, you better change the bga chip..

[olorin]

Re: Acer Aspire 5520- No power

if you want long lasting fixed, you better change the bga chip..

If I make it reballing will not hold much more?
Why should be changed the chip?