A laptop screen turning pink can be a symptom of a number of possible problems with the computer. It indicates a problem with some part of the video display, whether the liquid crystal display (LCD) or the connections between the LCD and the laptop's motherboard. Some of these problems can be fixed simply and cheaply. Others will be more difficult and potentially more costly. You can test your laptop yourself before bringing it to a professional to get it fixed.
Loose or Damaged Ribbon
This is one of the more likely causes of the pink screen. The video ribbon is a thin strip that connects your computer's LCD to the motherboard. It is inside the hinges of the laptop. If this is loose or damaged it can cause the laptop screen to display solid colours or nothing at all. One way to test if this is the problem is to adjust your laptop screen backward and forward. If the picture changes, gets better or worse, then it may be the ribbon, which you are manipulating by adjusting the hinge.
Another way to test if this is the problem is to attach an external monitor to the laptop. You may need to borrow a monitor from someone if you don't have one readily available. You may also need to consult your laptop's user guide to find out how to attach an external monitor to the laptop. Once this is done, if information displays on the external monitor as it should, then a loose or damaged ribbon is the most likely culprit for your pink screen.
This is a less likely culprit than a loose ribbon. A problem with the laptop inverter is more likely to cause a very dim screen but not necessarily change its colour. If you can still see your desktop dimly through the pink colour, then it's possible the inverter is the culprit.
Again, the way to test this is to connect the laptop to an external monitor. The reason for attaching it to monitor is to test if the problem is the display or the information the display is receiving. The external monitor connects to the laptop by a separate path from the laptop screen, bypassing any problems in the connections between the screen and the motherboard.
Graphics Card Problem
This is a much less likely cause of a pink screen. The graphics card tells the screen what to display. If there is a problem with the graphics card, then there will be a problem with any display attached to the laptop. In this case, the test of plugging in an external monitor will reveal no change between the monitor and the laptop screen.
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