Acer Aspire 5920G Will Not Turn On

[mdugdale]

Hi all,

Ive been asked to look at this aspire 5920G because it had some software issues. When i have come to work on it, it will not turn on whatsoever.

The charge light comes on and the power light on the ac adapter is a steady green.

I have removed the battery and ac adapter and left it to discharge for a period and still no joy.

I have since tried a different ac adapter, i have checked for shorts on pc118 and pc112 just in case. All items have been removed and reseated.

I have tested the switch and i get 3.3v and the switch behaves as it should.

Hopefully someone is able to assist with this. Any help provided is greatly appreciated!

[ablacon64]

Re: Acer Aspire 5920G Will Not Turn On

Check for the basic pwm 5 and 3 volts.
The schematics for that motherboard is here:
http://www.4shared.com/document/x1ZU...1_-_REV_E.html

[mdugdale]

Re: Acer Aspire 5920G Will Not Turn On

Thanks for your help, one question though, is this referenced as +5VPCU and +3VPCU on the schematic??

[Th3_uN1Qu3]

Re: Acer Aspire 5920G Will Not Turn On

Reball the GPU. There's nothing else wrong with it, it's the classic nVidia GPU failure.

[mdugdale]

Re: Acer Aspire 5920G Will Not Turn On

im 99% certain that this particular model uses the intel gma graphics. the mxm slot is missing. i havent got the unit with me as i am at home but i will double check this in the morning. thanks

[Th3_uN1Qu3]

Re: Acer Aspire 5920G Will Not Turn On

The G in the suffix usually indicates discrete graphics.

[mdugdale]

Re: Acer Aspire 5920G Will Not Turn On

i'll try a reflow first thing, if it shows signs of life i will get it reballed. thanks again