How to deal with Acer Aspire 3680 AC Adapter power jack

Problem symptoms:

Laptop randomly shuts down without any warning.
Power LED and battery charge LED start flickering when you wiggle the power cord or the Acer Aspire 3680 AC Adapter tip on the back or your laptop.
The battery will not get charged.
When you plug Acer Aspire 3680 AC Adapter, the laptop appears to be dead and there is no LED activity at all (DC-IN jack on the system board is broken).
Sometimes, after you replace the Acer Aspire 3680 AC Adapter jack, you can see that the system board doesn’t get power at all. The battery will not charge and the power LED will not light when you plug in the Acer ac adapter. So, here’s a possible explanation. When a connection between the positive pin and the motherboard breaks (cracks), the power jack gets loose. You can feel it when you plug in the Acer Aspire 3680 AC Adapter plug. A loose power jack can damage the trace inside the hole in the system board.
In this case everything looks nice and clean on the top side. When you plug in the Acer Aspire 3680 AC Adapter, you get normal voltage readings between “+” and “-“ pins on the top side, but the power DOESN’T go to the motherboard at all, because there is no connection between the top and bottom sides. Test with a multimeter if there is a connection between the top and the bottom.
Many laptops have a power problem. The battery stops charging when you move the power cord on the Acer Aspire 3680 AC Adapter DC adapter. When you start moving the cord left to right, the power LED light on the front goes on and off and the battery charge LED goes on and off too.
A bad connection between DC-IN power jack on the system board and the system board is a very common problem with Acer Aspire 3680 notebooks. If your laptop is out of warranty, then you can fix the problem by resoldering Acer Aspire 3680 AC Adapter jack on the system board. If it’s still under warranty, it would be fixed at no charge to you.
You cannot simply unplug the jack and replace it with another one. You’ll have to unsolder the old jack and solder a new one back on the motherboard. Looking for other laptop accessories information, you can visit papatek.com, or you can also visit: Acer Aspire 4720Z AC Adapter 90W(Output: 19V 4.74A ;Power: 90W )
Acer Extensa 4620 AC Adapter 90W(Output: DC 19V 4.74A Power: 90W )
Gateway SADP-65KB B Adapter 65W(Input: AC100-240V (worldwide use);Output: DC19V 3.42A)
Acer Travelmate 2000 AC Adapter(Input: AC100-240V (worldwide use);Output: DC19V 7.1A )
Acer Aspire 1200 AC Adapter(Input: AC100-240V (worldwide use);Output: DC19V 3.16A)