What do the power light blinking codes mean on cinema display?

I have a cinema display on my G4, and about a year ago or so I had to replace a backlight due to a failure. Tonight I see that the power light is blinking again in a repeatable sequence, and I am wondering where I learn what the sequence is telling me about the nature of the problem?
Power output of the display is reduced again, and I am hoping I do not need yet another backlight repair.

The meaning of the blink codes is not stated in the manual, but in this knowledge base article:
http://docs.info.apple.com/article.html?artnum=88366

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