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Re: my display has a red tint to it
Try adjusting the color properties of the monitor using the controls located on the front of the monitor.
If you can't correct the color, then it's a problem in the color circuit. As an ex tv repair guy I can tell you it may cost more than the monitor is worth to fix it unless it's still under warranty.
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Your lcd screen is bad. It's either the lcd screen or the video card
inside the computer, but most likely the screen. You can isolate the
problem by connecting an external monitor to the computer. Borrow a
monitor from a neighbor, friend, relative or co-worker and connect it to
the computer. If the Borrowed monitor displays ok without the read and
green tint then your video card inside the computer is good but your
lcd screen is bad. If the Borrowed monitor displays the same red and
green tint then the video card inside the computer is bad.
It can be any kind of monitor even the old big fat
crt monitors as long as it has a vga cable to connect to your computer's vga
port. If so that proves your video card is ok. The video will show
on most systems when you reboot without you having to do anything. Some systems
will require you to hit the FN (Function key) + F1 thru F12. Hold down
the FN key then hit the correct key for displaying on the monitor (F1 thru
F12). The correct key will normally have CRT/LCD on it or it will have
the icon of a display.
A red or pink tint on LCD monitor indicates that the CFL backlight bulbs are failing. These are just like the florescent bulbs you use at home and the office but much smaller. When they are about the fail they will have a red tint to the light instead of white. They can be replaced but on a 15" LCD its not worth the price and trouble to do it. The bulbs will run about $35 and then about 1 hour to install if you know what you are doing. It would be better for you to get a replacement monitor.
We do a lot of LCD monitor repairs and usually when you get the red tinted display it means the backlight tube is going out. This part is like a very small fluorescent tube just like in you office lamps. The tube is part of the display section and is very hard to replace. You can check the power supply first just to be sure. We have a dis-assembly/repair guide on our web site at: www.ccl-la.com/badcaps.htm If you find any bad capacitors you can change them and check but I would be it is the backlight tubes, if so just replace the monitor.
Buddy Corporate Computer Over 21 years of PC and printer support/repair
Unfortunately if you have tried a different machine (it could be a bad video card) and tried the cables most likely it is the screen itself. Typically when one of these lcd's begin to fail the pixles no longer access the blue field and you see mostly red instead of the other two colors. In short pink screen is terminal, it will last for a while longer.
Make sure your VGA cable is seated properly. If it is seated OK, it could be the start of a problem with a backlight. When a backlight goes bad, it typically shows up as pink/red color where white should be displayed.