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Corben Dallas

macrumors newbie
Original poster
Jan 30, 2020
7
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I got from trade screen shuttered iMac 27 5k 2019. Any idea where to get lcd screen for reasonable price? Any idea can i fit older 27 5k screen to it, if i can not find original one?
 
Not entirely sure if this applies to the 2019 model, since I haven't been able to test on one - but I know for the 2015s, using a different model LCD will be seen as an external monitor - which should make no difference in performance or resolution - unless you had a mid 2015 machine (would display 4k on 27").
But with a different model LCD on 2019, you might not be able to get 5k resolution on any external monitor you connect through TB3. Only a theory, since again - I haven't been able to test this on a 2019.
 
Answer to my own question, LM270QQ1 SD C1 from iMac 2017 works very well in iMac 2019 which has originally LM270QQ1 SD E1.
 
Be careful if buying online.
Most are Chinese knockoffs that claim to be Apple OEM.
They don't have the "P3 wide color gamut" needed for 2015 and newer iMacs. Some are not 5k.
The knockoffs have the exact LG labels that the OEM displays have (see 1st picture below).
Here are pictures of a real 27'' OEM LG 5k display I installed on my late 2015.
I bought it on eBay for $420 with free shipping.

s-l1600.jpg


A real LG OEM display has a temp sensor (bottom middle),
and a big black square of tape (top left).
Chinese knockoffs don't have either.

s-l1600.jpg


s-l1600.jpg
 
Last edited:
What about the opposite? Assemble the LM270QQ1 (SD) (E1) (2019 model) on my iMac 27 5k 2017 model?
2019 27” lcd will work on a 2017 27” iMac.
The backlight cable might be a bit of a squeeze to fit inside properly as it’s positioned a little bit differently on the 2019 model - however it will fit.
 
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2019 27” lcd will work on a 2017 27” iMac.
The backlight cable might be a bit of a squeeze to fit inside properly as it’s positioned a little bit differently on the 2019 model - however it will fit.
I read something about colour and brightness Will be a little diferent…can you confirm that? True tone is important to me…
 
I read something about colour and brightness Will be a little diferent…can you confirm that? True tone is important to me…
Personally I have noticed no difference between the two.
 
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