Broke LCD while trying to clean it. What now?
My iMac suffered of the infamous dust between LCD and backlight problem. I decided to follow the advice given in this post.
Everything seemed fine, I got rid of the dust, until I reassembled to whole device. Upon turning it on, the screen showed massive artefacts, especially horizontal lines, making it unusable.
Here are links to a few screenshots:
Whole display just after turning on
I have triple checked all connections, even tested the LVDS cable's connections with a multimeter, and everything seems fine.
The LCD model is LM215WF3(SL)(A1)
Any help is much appreciated, thanks!
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Actually I separated LCD and backlight completely. This is possible by removing the three screws that hold the piece of metal shielding the LCD logic board in place, then opening the assembly carefully and slipping out the lcd from the backlight frame.
I checked the connectors carefully for damage, both the LVDS cable that connects the whole display unit to the imac logic board, and the several "strips" that connect the actual LCD glass to its logic board. Again, there is no physical damage or loose connection that I can notice (checked with lens and light to make sure).
There is one thing that I am not sure of: on the bottom side of the screen there are the connectors mentioned above that connect the lcd itself to its logic board. These are soldered and can not be removed. But on the side of the display there are four "free" connectors, which are attached to the glass but lead nowhere, they just sort of stick out. Do they need any special "treatment"?
Thanks
Christian Prinoth さんによる