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PowerBook 160 with vinegar syndrome LCD


Well-known member
My PowerBook 160 sadly developed a vinegar syndrome after being stored for bit more than 2 years.
Other similar aged PowerBooks in my collection are still fine, also being stored for same amount.

I opened it and found out that the panel is Sharp LM64P58.
I saw few videos about replacing the polarizer films on similar LCDs. I think I could do it, but where could I get the right polarizers? I checked the aliexpress and ebay, but I really don't know which one will work, as some are apparently only for color LCDs, and PB 160 has monochrome passive matrix panel.

Does anyone have any information where to get the right polarizers?



Well-known member
Here, some photos:


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Well-known member
No replies? Is vinegar syndrome so rare after all?
I found another two laptops with vinegar syndrome, one of my favorite 486 laptops ever made - Compaq Contura Aero 425.
And one much newer, a Compaq Armada E500, from 2000! That one was still fine just 6 months ago.

I guess the defect isn't that common still, but I am afraid we would be replacing those polarizer films on our laptops in the next decade... we need to start obtaining as much information as possible.


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Well-known member
I recently did on my 540c, I wouldn't recommend what I used as it was quite thin which isn't much help for a first timer if you wanted to pull off and reapply it would be impossible without tearing. It probably would have been fine if it wasn't as sticky as it was even with using soapy water trick.Also, I don't think there are different polarizers because then it wouldn't work when you switch the monitor to 2-bit mode or grey scale.