주요 콘텐츠로 건너뛰기

모델 A1419 / EMC 3070 / Mid 2017 / 3.4, 3.5 또는 3.8 GHz Core i5 또는 4.2 GHz Core i7 Kaby Lake Processor (ID iMac18,3) / Retina 5K Display. 시스템이 매우 유사하므로 이전 iMac Intel 27" Retina 5K Display (Late 2014 & 2015) 안내서를 참고하십시오.

293 질문 전체 보기

Black Screen but works with external.

Greetings all. I'm a little new to the Mac world. My iMac turns on, I hear the tone and fan, but the screen is black. When I connect to an external, I get video. With a PC, that means replacing the LCD. Is the solution the same for an iMac?

답변되었습니다! 답변 보기 저도 같은 문제를 겪고 있습니다

좋은 질문 입니까?

점수 1
댓글 3개

Hi

What’s your brightness sitting at

I know this seems a little too obvious but it’s got me a couple times:-)

[image|2711302]

@guardian10 This is the diagnostic code on the board. I do believe this confirms your suggestion. Thanks!!!

Hello Professor Will,

Having the same problem on 2 identical iMacs (the exact same one you have). Did you manage to resolve your screen issue? If so, how?

Many thanks

댓글 달기

답변 1개

선택된 답변

You're probably right about the LCD being bad, but there could be more to it.

First up, can you see anything when you shine a light into it? If you can, then there is a backlight issue. It could be the driver board, backlight controller on the logic board, or the display backlight itself of it's fried.

If that is not the issue, the display connector on the board could be damaged in one way or another.

해당 답변은 도움이 되었습니까?

점수 1

댓글 3개:

I can't see anything when I shine the light on it. I've tried all of the key combination solutions and still no luck. How would I know if it's the LCD or the logic board?

@Professor Will Take a look at the socket the display plugs into. If it is damaged, it would require soldering to fix. Otherwise, the display is faulty and needs to be replaced.

Appreciate the feedback. Will look into it ASAP

댓글 달기

귀하의 답변을 추가하세요

Professor Will 님은 대단히 고마워 할 것입니다.
조회 통계:

24 시간 전: 1

7일 전: 9

30일 전: 16

전체 시간: 342