My ACER A715-72G has no power

Thinh

Yesterday, my laptop still worked fine. Today, I turned it on, but there was no sign of power. Then I disassembled it and I found these burned elements.
What are they used for? Can the shop fix this problem and is it expensive to fix? Is there anything I can do with this problem?
Thank you.

JackE

Did you unplug the charger and immediately disconnect the battery from the mainboard after opening the bottom cover? 

Thinh

I had unplugged the charger before opening the cover. After that I unplugged the battery for checking. 

JackE

Sorry, this chip is part of the mainboard's power control circuitry. It was likely exposed to an AC power surge or a shortcircuit to ground on the mainboard. Because of the extensive damage to the other surrounding components as well as other mainboard components connected further from the chip, the mainboard probably cannot be repaired. You should try to arrange for warranty repair if still covered.

Thinh

I see. Thank you very much.

StevenGen

Thinh said:

Yesterday, my laptop still worked fine. Today, I turned it on, but there was no sign of power. Then I disassembled it and I found these burned elements.
What are they used for? Can the shop fix this problem and is it expensive to fix? Is there anything I can do with this problem?
Thank you.

This is a very unfortunate thing to happen but and as JackE has said, this is part of the mainboard's power control circuitry and it can't be fixed by you, as you have two different choices to fix this problem:

1. Firstly and as there are so many different mainboards for the Aspire A715-72G (see below and look at the model number of your motherboard for the exact Acer board and part numbers) you can either relace the OEM motherboard with a new one of the types below:




2. OR...get this motherboard that has these burned out chips replaced and get your board analysed for the cause(s) of this burnout by an experienced technician so that you don't get this happening again (as this could happen again if there are other causes?) by a technician that specialises in micro soldering who can replace these burned out chips.

IMO and the best thing to do is this but, this is only my suggestion, so its up to you? I would send this damaged motherboard to "Alex at NorthRidgeFix" (see his YouTube posts also for references, as he's one of the best micro soldering technicians and analysers of such problems and who will fix all the causes of why this has happened to your motherboard, this is especially if you live in the USA (but not necessary as it depends on the cost of the repairs and the shipping both ways an if you are prepared to pay more?) so calculate what a new board will cost you (as you can replace a motherboard yourself but won't fix 100% of the causes of this problem) versus what it will cost you to repair and ship this board to NorthRidgeFix who are experts in these sorts of problems and/or another solution is to find out if you have a guy like Alex and a place like NorthRidgeFix in your area? Good luck and hope this helps you out, cheers.   

Thinh

Thank you very much.

JackE

If the machine is still under warranty, click this link, choose your country, then click support link at top of country page. Then enter the machine's serial number id (SNID) and arrange for warranty repair.

Thinh

JackE said:

If the machine is still under warranty, click this link, choose your country, then click support link at top of country page. Then enter the machine's serial number id (SNID) and arrange for warranty repair.

Unfortunately, I am abroad. Anyway, thank you for your help.

JackE

Doesn't matter If it's still under warranty!!!!! At least try to get it pre-booked for warranty repair in your home country where you purchased the machine before the warranty expires. Don't delay. Do this now.