Macbook Pro create noise near magsafe connector

[Nilakshi]

I am using MacBook Pro. I am easily to connect iPod, digital cameras, external hard drives equipped with two USB 2.0 ports for connecting various peripheral devices. There is also a Mini Display Port, energy and the new Apple LED Cinema Display perfect match. I am using MagSafe power port that design effective anti-tripping down to protect my system and valuable information. But it creates lots of noise. I don't know what is the issue. Please help.

[Fabian]

You need to check the following :
# Power adapter to the computer can not be charged.
# Connected to the computer, adapter connector on the LED can not light up.
# Adapter only intermittently charging the computer.
# White insulation materials adapter MagSafe connector from the head end of separation (also known as "stress relief").

[RoninBlade]

Sometimes when you plug the power adapter into a wall outlet, you will see sparks. When you insert the power electronics outlet, this is a common phenomenon. To confirm whether the normal power supply outlet. The well-known electronic devices (such as lamps, TV, or watch, etc.) into the wall socket, and make sure equipment will normally open.

[deoWo]

You need to unplug the power adapter plug from the wall, hold for 60 seconds, and then the wall socket. If the adapter can be in this 60 seconds of "rest" after work, your power supply may have line noise problems. You need to repeat the rest of time to reset the adapter. This problem is common in the AC power adapter "overpressure protection" feature detects when the ground noise and the closure of the adapter.

[Rawko]

Caused by line noise may be due to the computer where the circuit is connected to the lamp ballast resistor, refrigerator or mini-refrigerator. If the power adapter into a UPS (Uninterruptible Power Supply, UPS) or other lines, will not appear in this picture. Unless the adapter to connect a known good outlet this problem still occurs, or no change.

[Mahish]

Pressure relief is the DC cable on the MagSafe connector to power adapter thread from the MagSafe power adapter connector end or the other thin line separating the end of the case. Long-term use, the cable may be fading, and the rubber molding may also be deformed. Another possible phenomenon of stress relief is the possibility of intermittent connections. This situation can usually be twisted back and forth next to the MagSafe connector cable, and observe the LED light (into amber or green) is flashing (depending on line of position) to judge.

[Chakradev]

Sometimes, the computer MagSafe adapter does not work is because the MagSafe connector pins were stuck. For example, the MagSafe adapter is shown below the pin connector stuck. If that pin is stuck, try to unplug the MagSafe adapter from the power port, and then re-plug. Pin should move and automatically reset. If you find that pin is not self-reset, use your fingertips or a soft (not rough) side of the surface of soft reduction pin, try to reset the pins themselves. If the pin cannot be reset.