In most cases, 95% of the time, the internal DC Power Jack on a laptop has to be replaced. Unfortunately, the connections directly on the motherboard of the laptop are faulty. Operating a laptop with a faulty DC power connector for long periods of time while moving the power cord to the right position to work can also eventually damage the motherboard.
The center “positive” pin on this power jack (soldered directly to the motherboard) usually breaks first when a DC jack is intermittent or fails to work at all. When this happens, the DC Power Jack needs complete De-soldering and a new DC Power Jack replaced into the motherboard then tested.
Notice broken “pin” connection in the photo below:
An internal DC Power Jack on a laptop “unseats” from the solder joints, or the thin pin snaps away from the board causing the electric circuit to stop or become intermittent.
How Laptop Internal DC Power Jacks Break?
• Some laptop DC Power Jacks fail under normal operation.
• After a year or two of usage, the internal DC power connector can become loose.
• The fall of a laptop put can put too much stress on the internal DC power jack.
• People, pets and vacuum cleaners trip over laptop power cords, damaging the internal DC jack connection.
• When laptops get moved around a lot while plugged into the AC adapter.
Contact our computer repair shop for a free price quote. We diagnose and repair this type of problem and others daily. If you live out of state, we cover the return shipping cost.