Hello there:
These screens have a very fine neon tube that runs thought the screen
and over time these will blow out expecially if the lid is slammed down or the laptop has been dropped there is also a inverter that runs the tube that sits on the motherboard that can go out too But not too much
SO what you are going to have the screen or the inverter serviced and have the necesary parts replaced by a qualified technician ok?
I hope this has been very helpful for you>
Best regards Michael
I have an Acer 4520 and after I use it for 2-3 hours it shuts off, like it over heats. Is there a manual for it online? and could it possible be the fan?
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