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2010년 중반기 모델 A1278 / 2.4 or 2.66 GHz Core 2 Duo 프로세서

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Laptop not charging and wont turn on with ac connected. dim light

My laptop was working perfectly fine until a friend wanted to use my charger on his laptop. after he used it on his laptop. I plugged it up to mines when i needed it and it wouldnt charge the light was just dim green. when i test the charger magsafe connector i see a reading so the charger is working i believe. I also replaced the dc board, battery and charger still no luck the charger lights show a faint / dim green light and thats all. The laptop was last working fine until the battery ran all the way out. So the laptop works it just wont charge or run off the charger even without the battery. I have tried all smc reset and still no luck

답변되었습니다! 답변 보기 저도 같은 문제를 겪고 있습니다

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Ouch! This doesn't sound good here.

The charging logic on the logic board appears to be damaged. Often I see this when the MagSafe connector on the system was zapped by static electricity.

We had a run of these due to the computer bags we bought which had polyester linings. When you pulled the system in or out they sometimes would get hit (more so during the winter when the air was dry). It took us awhile to figure it out. After treating the bags, and a little education to our users we have seen fewer burnt logic boards.

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Is there a fix for this? What should I do I'm not afraid of using a solder iron if I have to

Do you have access to the schematics & layout drawings? You'll need these and a good DVM to test the MOSFET's and the comparator logic.

Even I don't go this low any more. We send out the logic boards to be fixed.

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