3 Screen backlight blinking when turning on iMac, then returns to normal
Guys, I have this imac late 2009, what happens is that when I turn it on, the backlight blinks for a few seconds, then the screen works perfectly for hours, however, when I turn on the computer with the screen brightness at maximum, the backlight it has more difficulty staying lit, so I need to turn it off and on again until it manages to stay lit, when I turn off the Mac with the lowest brightness, I can turn it on again.
Questa è una buona domanda?
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@ramonferre18311 all you have to do is measure the output voltages on CN3. If those stay stable, you know it's your backlight strips. If they don't, you know it's your LED board.
da oldturkey03