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MacBook, MacBook Pro 및 MacBook Air에 사용되는 AC 전원 어댑터. 잡아당길 때 안전하게 분리되는 자가-정렬 자성 커넥터를 사용합니다. 1 세대 (2006-2012) MagSafe 충전기는 약간 두꺼운 L 자형 커넥터가 있습니다. 45 W, 60 W 및 85 W 버전으로 제공됩니다.

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What is the correct wiring?

Hi,

I'm trying to repair a Magsafe by changing the cord.

I desoldered it, but can't remember wich hole corresponds to positive and neutral?

Block Image

Any ideas?

In advance, thank you for your help

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선택된 해법

Here is how mine was when I took it apart but I think it is a different model.

Block Image

I would recommend placing it on a wooden desk, plugging it into a solid power strip with a power switch, then hooking it up to the wall (carefully, you now have dangerous voltages that can kill you) The idea of the power strip with a switch is so that you do not actually have to touch the exposed circuits while plugging it in and unplugging it. Some times, the aluminum heat sinks can have voltage on them too that is dangerous.

Use an multimeter with the red and black leads plugged into the correct voltage holes, in Voltage DC mode in the range of 25volts or so (should only be around 16-21vdc I think) and probe the 2 points.

If your reading is a - value, your red and black are the wrong polarity, If you get a positive value, you are correct with the polarities.

Good luck!

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Henri Poinot 가/이 대단히 고마워 할 것입니다.
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