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3 BLACK LINES THROUGH SCREEN. One 1 in from top, one through middle of screen and one 1 inch from bottom of screen.


Answers :

The LCD panel is dying. It may only have a line or two of dead pixels but it may also get worse over time. Often caused by poor connections indide the monitor from the LCD panel to the flexible PCB. Basically the PCB ribbon is pressed against the LCD and as the padding gooifies it looses contact. This has been an issue since the first LCD screens on calculators etc.
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