Wont boot, no chime, black screen.

Question

MacBook Pro 13インチ Retina Display Late 2013

モデル番号A1502 / 2.4, 2.6, 2.8 GHz デュアルコアIntelプロセッサ/ 2013年10月発売

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Sam Tuckett @user_unknowm

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投稿日: 2018年8月20日

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Wont boot, no chime, black screen.

My MacBook Pro will take power and charge the battery.

Basically, when I click the power button there is no chime and just a black screen. Also, there is no power to the USB ports or the keyboard. I can also hear the optical drive spin up and the cooling fan is running.

I have looked around on different forums as Apple was not much help to me.

I thought it may be the GPU, but then still I would be getting a startup chime right??

Thanks to everyone that will help :)

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Did you have a liquid spill at some point into the keyboard or trackpad?

Dan さんによる2018年8月20日

No liquid has been spilt on the keyboard, also if it was just spilt on the keyboard surely I would still get the chime at least?

Sam Tuckett さんによる2018年8月20日

You’re assuming a lot here with your belief the start up tone would still happen if the keyboard got wet.

The issue is the liquid dropping down onto the logic board damaging it.

Dan さんによる2018年8月20日

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Did you have a liquid spill at some point into the keyboard or trackpad? — Dan
No liquid has been spilt on the keyboard, also if it was just spilt on the keyboard surely I would still get the chime at least? — Sam Tuckett
You’re assuming a lot here with your belief the start up tone would still happen if the keyboard got wet.

The issue is the liquid dropping down onto the logic board damaging it. — Dan

Dan @danj 評価: 479.1千 Self employed contract worker 35 329 971 · Answer 1 · 2018-08-20T14:48:48-07:00

Dan @danj

評価: 479.1千

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投稿日: 2018年8月20日

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Sorry to say if you didn’t get the system wet the logic board has failed. The reason the fan is running is the fact you have a micro controller (SMC) which controls it. As you haven’t passed post the USB ports aren’t powered yet.

Time for a new logic board or find someone who can fix yours.

Here’s the IFIXIT guide you’ll need to follow to replace it MacBook Pro 13インチ Retina Display Late 2013 ロジックボードの交換 within the guide are your logic board options.

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MacBook Pro 13インチ Retina Display Late 2013

Wont boot, no chime, black screen.

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