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Apple은 2015년 3월 9일에 Retina MacBook 2015 모델 A1534를 4월 10일에 출시한다고 발표하였습니다. 새로운 유니바디 구조 및 업데이트 된 트랙 패드, 키보드, 그리고 Retina 화면을 포함합니다.

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MacBook 12" 2015(820-00045) no display, no chime, no image

Hello, @arbaman @reecee @refectio and other experts!

Recently I received a dead MacBook 2015 12”. When I connect charger, no chime no image, no backlight.

  1. I tried measure every power line with multimeter, but I found missing voltage only on PP5V_S0SW_LCD, PP5V1_S4SW and PP1V05_S4SW lines
  2. I use my ThermoCam and compared the thermo image with good working board but images look the same. So I think there is problem only with image and backlight (maybe)
  3. I disconnect everything and connected a known good display but does not help
  4. I preventatively replaced U4700 but no change

On the internet I found, than a lot of people have same issue with this model. Is here any way how to fix?

Thanks :)

board number is 820-00045

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Did you press the re-set button on the battery connector?

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sure man, also tried smc reset, reconnect battery

on the board is not present

EDP_BKLT_EN

EDP_PANEL_PWR

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I haven't much experience on A1534 boards unfortunately, I have a dead board around for a few months now but haven't had the time to get deeper into it. Do you have an adapter you can try to plug into an external screen to help you point in the right direction ? The missing enable for backlight might be your issue indeed.

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sure i tried connect external display but no image :)

on the board are not present

EDP_BKLT_EN

EDP_PANEL_PWR

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Sadly, I think your best option is to replace the logic board MacBook 12" Retina (Early 2015) Logic Board.

MacBook 12" Retina (Early 2015) Logic Board 이미지

상품

MacBook 12" Retina (Early 2015) Logic Board

$399.99

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Tomas 가/이 대단히 고마워 할 것입니다.
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