Single black vertical line down display

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iMac Intel 21.5" Retina 4K Display 2017

A1418 / EMC 3069 / 2017 / 3.0 GHz quad-core i5, 3.4 GHz quad-core i5 또는 3.6 GHz quad-core i7 프로세서. 2017년 6월 8일 출시.

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Paul Aldred-Bann @paulaldredbann

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게시됨: 2019년 11월 8일

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Single black vertical line down display

So as the title suggests, I have a black line down the display now.

This is self inflicted as I’ve just had to chop the whole bloody thing apart to upgrade the RAM and swap out the disk for a SSD - which all works fine btw, no issues there - but the end result has been this black line down the display.

It doesn’t appear in screenshots nor on my second monitor so it’s isolated to the display or the display data cable. I’ve tried flushing NVRAM and I’ve tried looking for any discernible breaks of blemishes in any of the cables or circuits… nothing.

Any ideas?

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Dan @danj

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게시됨: 2019년 11월 8일

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Ouch! You did your self in ;-{

In the process of removing the display you damaged the LCD panels connections along the edge. If you had gotten the special adhesive cutter which is part of this kit [링크된 제품이 누락 또는 비활성화 됨: IF173-005] it would have likely saved you.

Time for a new display assembly!

iMac 21.5" LCD Display Panel Assembly (Non-Retina) Apple P/N 661-07321
iMac 21.5" Retina 4K LCD Display Assembly Apple P/N 661-07322

And here’s the the needed guide iMac Intel 21.5" Retina 4K Display (2017) Display Replacement

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I certainly did... ironically I did get a kit like that, it wasn't a pizza cutter though more like a little stanley knife.

I had a feeling that I'd busted the display, I have a replacement on on order now, the full unit - https://www.amazon.co.uk/gp/product/B07G... - but I've also got the display cable on order so was wondering if I could get away with just replacing that... I guess not!

Thanks for taking the time to answer.

Paul Aldred-Bann 의 2019년 11월 8일

If you are careful you can transfer the cables over. Do re-order the needed adhesive strips! make sure you've fully cleaned off the old adhesive and clean the surfaces with reagent quality isopropyl alcohol (85% or better) Drug store alcohol is junk!

Dan 의 2019년 11월 8일

Yeah I've scraped off all the old adhesive, but a rubbing is a good call so will get hold of some of that. Thanks.

Paul Aldred-Bann 의 2019년 11월 8일

Incidentally, this was the kit that I bought and used for this disassembly. I guess the cutter just went in too deep. https://www.amazon.co.uk/gp/product/B01M...

Paul Aldred-Bann 의 2019년 11월 8일

@Paul Aldred-Bann - Ah... The knife was not the correct tool here ;-{

Did you review the guides before you started??

Dan 의 2019년 11월 8일

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I certainly did... ironically I did get a kit like that, it wasn't a pizza cutter though more like a little stanley knife.

I had a feeling that I'd busted the display, I have a replacement on on order now, the full unit - https://www.amazon.co.uk/gp/product/B07G... - but I've also got the display cable on order so was wondering if I could get away with just replacing that... I guess not!

Thanks for taking the time to answer. — Paul Aldred-Bann
If you are careful you can transfer the cables over. Do re-order the needed adhesive strips! make sure you've fully cleaned off the old adhesive and clean the surfaces with reagent quality isopropyl alcohol (85% or better) Drug store alcohol is junk! — Dan
Yeah I've scraped off all the old adhesive, but a rubbing is a good call so will get hold of some of that. Thanks. — Paul Aldred-Bann
Incidentally, this was the kit that I bought and used for this disassembly. I guess the cutter just went in too deep. https://www.amazon.co.uk/gp/product/B01M... — Paul Aldred-Bann
@Paul Aldred-Bann - Ah... The knife was not the correct tool here ;-{

Did you review the guides before you started?? — Dan

iMac Intel 21.5" Retina 4K Display 2017

Single black vertical line down display

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