iMac is woking but screen is screwed

Question

iMac Intel 27" EMC 2639

모델 A1419 / Late 2013 / 3.2 & 3.4 GHz Core i5 또는 3.5 GHz Core i7 프로세서, ID iMac14,2

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Gennaro @golivag

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게시일: 2021년 12월 17일

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iMac is woking but screen is screwed

Hi all,

is there any way to fix this?

OK I managed to make the external display work: the imac was running Linux, and the second screen attached to the mini displayport through an HDMI adapter get no signal. So I created a Mac OS X installation boot usb stick and booted by USB. When running the OS X installation program, the second screen attached to the mini displayport was running fine.

Therefore I think the problem is in the screen.

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Does anything happen if you connect an external display?

Andrew S 의 2021년 12월 17일

External monitor attached to the minidisplay port with a mini displayport to hdmi adapter says no signal.

Gennaro 의 2021년 12월 22일

@golivag - Your new test proved the internal display is bad, time for a new one.

Please score and accept my answer - Thanks!

Dan 의 2021년 12월 25일

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External monitor attached to the minidisplay port with a mini displayport to hdmi adapter says no signal. — Gennaro
@golivag - Your new test proved the internal display is bad, time for a new one.

Please score and accept my answer - Thanks! — Dan

Dan @danj 평판: 479.6k Self employed contract worker 35 329 971 · Answer 1 · 2021-12-18T05:36:49-07:00

Dan @danj

평판: 479.6k

Self employed contract worker

35

329

971

게시일: 2021년 12월 18일

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If the external monitor shows a clean image then you will need a new display. Follow this guide iMac Intel 27" EMC 2639 Display Replacement and here’s the needed part 2012/13 27” iMac Display Assembly, Apple P/N 661-7169

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External monitor attached to the minidisplay port with a mini displayport to hdmi adapter says no signal.

Gennaro 의 2021년 12월 22일

@golivag - Not good ;-{ Your logic board has issues!

It might be repairable but its going to take someone with deeper skills and access to the needed tools to fix this. Or, you could just replace the logic board TheBookYard UK - Possible logic boards that will work in your system for one source that should have what you need.

Dan 의 2021년 12월 22일

Well, your new test point to the display which is what I had thought!

Dan 의 2021년 12월 25일

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iMac Intel 27" EMC 2639

iMac is woking but screen is screwed

Update (12/17/2021)

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