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philgxxd

macrumors 6502
Original poster
Feb 11, 2017
422
341
Malaga, Spain
I was handed over an iBook clamshell 1st generation from a friend he bought on a flea market. It came without charger so he never got to try to see if it works.
I managed to connect it through my Lab power supply. That link @AphoticD put in his thread gave me inspiration to try it out. Thanks again AphoticD and many others for taking the time to document your work on this forum. I have a hard time doing this but I'm trying.
Well it works but the screen has some obvious damage to it supposedly someone trying to clean it with some acetone or similar...
20200302_235856.jpg

So yesterday night I wanted to see if I can take off that what seems to be a protective plastic sheet.
Disassembling the iBook for the first time is quite a nerve-racking task. This is how it went...
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To be continued...
 
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philgxxd

macrumors 6502
Original poster
Feb 11, 2017
422
341
Malaga, Spain
20200303_012116.jpg

The glue residue on the screen itself was painfully sticky.
I didn't make any photo of this process but I
used a magic eraser sponge with LOTS of alcohol and rubbing, rubbing, rubbing...

20200303_021510.jpg


Nice and shiny...

After re-assembling I got excited to see light up the screen...but it was only that...lots of light.

Well I wasn't aware that the plastic sheet I removed wasn't there only for protection.
Many of you probably know this but its it's actually a polarized film I found out.


I'm now searching for a replacement sheet of polarized film.
Do anyone of you have experience with that?
 
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MultiFinder17

macrumors 68030
Jan 8, 2008
2,728
2,056
Tampa, Florida
I'm curious to find out what causes this effect. I've had it happen to two LCD in my collection now. None of them have been anywhere near any cleaning chemicals. One has been on a display shelf and the other has been inside a drawer. I've attached a few pictures. If I can avoid this happening to any other LCDs, that would be lovely! On both of these it happened spontaneously :(

My PowerBook 540c:
IMG_9313.jpeg


A spare LCD that I kept in a drawer:
IMG_9314.jpeg

The PowerBook especially irks me. It was on a display shelf, has not been touched by any kind of cleaning chemicals, and in fact hasn't been used in a year or so. I came back into my classroom's office where it is displayed after Winter break (it had been locked up the whole time) to find several lines across the screen. Over the next week or two they spread into what they are today, and have stayed the same ever since.
 
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philgxxd

macrumors 6502
Original poster
Feb 11, 2017
422
341
Malaga, Spain
What I observed when I removed the sheet was that it had a very strong odor under the sheet.
It could be the glue itself they use during the process and that with time they start to react with the environment.
One spot looked even like a bacterial culture so it is maybe just some sort of organic degradation.
The good thing is that under the sheet there is glass so it's easy to clean. What I would like to know is what replacement sheet I need now.
Anyway it's good that it gets documented here and other places so we can gather information how to restore our gear.

I attached the data sheet for the samsung panel.
 

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