Acer aspire 7520 power problem

[xaviero1412]

Re: Acer aspire 7520 power problem

Hi thanks for all, I change two capacitor with new and now is all OK.

But I got another acer aspire 5520 with graphic on card, but no show any picture, I try with another graphivc card and still no changes. So I measure coils on similar spots like on 7520 and get this voltages.

looks like southbridge fail....
it is a chip above the processor in your photo

[primoz1]

Re: Acer aspire 7520 power problem

Hi. No this is not actual picture of motherboard is just fo orientation.

[primoz1]

Re: Acer aspire 7520 power problem

Hi. Got same problem again, but is not same voltages, I dont know but I feel that to the coil near processor does not have enough voltage.

Is any idea what can be wrong ?

[Nuclearblue]

Re: Acer aspire 7520 power problem

Hi I check again without CPU and get this values.

I search this 470 uf capacitors.

I have the same problem here, could you tell me how i can find such capacitors?
Thanks a lot in advance

[primoz1]

Re: Acer aspire 7520 power problem

Hi. you must recycle No serious, you may re-use capacitors from old boards.

Only you must have a ESR tester to check if is caps OK. But this testers is expensive.

So maybe is better to buy new caps, but there is another catch, most suppliers, try to sell 100 pr even 1000 pieces on one trade, or rise shipping cost to sky if you buy small amount.

Try here http://it.farnell.com/panasonic/eef-...-5v/dp/2284456


and here https://www.google.si/search?q=2.5v+...w=1280&bih=825

If I find some in Italy or near you, I will post here.

[Nuclearblue]

Re: Acer aspire 7520 power problem

Thank you so much my friend

I decided to buy them from here; much more convinient... some sellers asked me for shipping the same costs per Kg for Space Shuttle misions

http://www.alibaba.com/trade/search?...NIC+470uF+2.5v

[primoz1]

Re: Acer aspire 7520 power problem

No problem

Ho una domanda per te, hai un messaggio privato

[fddizon]

Re: Acer aspire 7520 power problem

how would you know which capacitor to replace?