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laptop screen problem: two thick lines across screen

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by wbsaunders 2 views

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I have an HP Pavilion laptop about 3 years old. Recently I started to get a thin line that ran hoorizontally across the screen. Also, sometimes I only got a faded green tinted screen with no display; but when I move the screen back or forth they screen comes back, b ut still had the line. The line looks like a compressed image, because there are colors in it. Now I have a second line that is twice the size of the first line. Is this a cable, chip, board, or screen problem? Any suggestions on repair? If it is more than $500 , I might as well get a new model for $850. Thanks.

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by robo_dev

would be to swap the whole display assembly.
A new display is around $300 for the part, plus labor.

The fault causing the line is most likely either the LCD driver circuitry that's part of the display is failing , or the ribbon cable that connects the display to the motherboard of the laptop is damaged or not seated correctly.

The screen going dark means that the backlight inverter is losing it's power connection. It has a separate cable that is either damaged or not seated correctly to the motherboard.

What an honest tech would do would be to disassemble, inspect the ribbon cables, and reseat these cables. If that did not fix both problems, then a new LCD display assembly would be the cure.

by oh smeg

You can test this by plugging in a monitor to the external plug and see if the same display appears on the External Monitor.

This will tell you if it's the actual Video Card or the Internal monitor. Not much else that you personally can do here though.

If the same display appears on the external monitor it's the Video Card and that generally means a new M'Board if the display on the external monitor is fine then the Internal Monitor is on its way out and that means a new Display Unit both are about the same price and mostly when these are shot it's not considered worth fixing by the owner.

Col

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