Powered on the 1850 this afternoon for some bouncy goodness and the top screen has decided to go postal.
Oh no 
…
I hope that you can get it fixed. And maybe the info from this post is useful:
Good luck! 
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There was a dud batch of screens. Mine was replaced under warranty and it died again. The wait was unreasonably long so the mixer was replaced.
Don’t let anyone tell you different, I have lost the email but there is a batch of screens that are not any good at all.
All the best
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LMAO, mine died a few days ago, too. And just as the warranty expired, what a shame.
Unfortunately all of the Denon suppliers in my country listed on their website were either out of business or no longer serving Denon DJ/InMusic, so I had to ask the customer experience team for replacement parts. Luckily the fact that their website had no valid dealers in my country meant I was able to at least request a quote from the InMusic customer support and I am still waiting for the final price and payment instructions.
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@lerk that’s a bummer.
A replacement screen can be purchased here however i don’t know if this is the top or bottom screen.
I disassembled the 1850 last night down to the main circuit boards although i didn’t go as far as the LCDs to get the part number, the sheer volume of screws is something to behold
I was disappointed by the state of the boards which have a residue, which i presume being flux covering the entire surface.
I might do a teardown and document it when i am off next week, don’t know how useful it would be.
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According to InMusic/DenonDJ support the screens are the same for both sides. Unfortunately I will have to pay ~$200 for one display if I order on that site (postage & customs, then fees for customs, etc.) that’s why I went with directly ordering through InMusic (since their shop finder can’t find shops in my country but they have an HQ there).
I think a video or pictures of the disassembly process would be very helpful, I’m planning to document it as well when the replacement parts arrive.
@lerk Someone listed a generic cheaper screen part not long ago on the forum. Let me see if i can find it.
Found It!
There ya go
Instructions 
found similar on aliexpress
https://www.aliexpress.com/item/1005003108880951.html?channel=twinner
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If you decide to repair it by yourself, the disassemble steps are exactly the same like the replacement of the fades.
Here is the post to see most of the steps:
On the last pictures you see the small cable sticking out of the plastic top panel.
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And the replacement has arrived, that wasn’t too shabby coming from China to Ireland, 11 days.
Might order a couple of spares.
And seeing as the mixer is currently in a state of disassemble, I may as well fit it tonight.
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Nice one! How much did it set you back?
Which one did you get?
Was it a plug and play situation?
I wonder what would happen if one gets the touch screen edition 
I went with the one from Ali Express, first time I have actually used them and it cost 12 euro.
Fitting it was extremely straight forward.
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