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Hi All,
Some pointers if you try fixing broken screens
it IS possible to fix the screen on these.......BUT, it's more expensive than just buying another nook / e-reader with the same screen (i've been trying for a while to fix an old kindle on the cheap, no luck :-(
.......if you do go looking for a replacement screen, here's some pointers
Check nookdevs / teardown, I stripped my own broken nook and updated the page.........
The display is an.......AZ / Prime View ED060SC4
on each display is written a small number on a white sticker near a row of four little capacitors / model number information
the sticker says something like
-1.28
with a barcode,
This number is the negative bias voltage of the E-Ink display and is unique to each batch (yours may have -1.14 or -1.48 for example).....
This voltage is set with a very small (<3mm x 4mm) 100K Ohm Surface mount Cermet trim pot (single turn variable resistor) that's surface mount and is a pain to get a replacement for (most RS parts are just physically too big)
IF you replace your display, you have to adjust that resistor.........
problem is, it's under one of the metal EMF covers - the L shaped one by the sim card slot.......
There is some blue adjustment locking compound on the variable resistor which sticks to the metal cover..........
If you do pull off the cover, use a very small heater in the far corner up from the sim card holder, make the surface painful to touch
This should melt the locking compound and stop the cover from pulling off the top of the variable resistor when you pry it free
Adjust the resistor until you get good contrast on the display and page turns (or use a multimeter to check the voltage!).......then re-assemble
Good luck!
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