Flashing Light on my Apple Cinema 20'' (2003)

The power button of my Apple Cinema 20'' is flashing short - short long.
rebooting, Pram reinitializing, plug verifying are unsuccessfully
Apple support says "backligth error"
What it means?
what have y to do?
thanks

Flashing light on those acrylic style monitors is a sign of either the inverter board going bad soon or one of the ccfl tubes that are used for the backlight display also on their way out. Don't forget that the monitor is 6 yrs old. That is why the newer monitors will all be using the LED's as backlights to avoid the longetivety problem.If your monitor is a bit darker on top or bottom of the screen, then it's one of the 2 tubes going. Either way, tubes or inverter, it's going to cost you a bit. I suggest using the monitor as long as possible with the flashing lights if that is the only symptom, and when it finally goes, I suggest a newer model. They have really gone down in price since 2003. Good Luck

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