LCD di backlight turns off after few minutes.

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Level 1

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LCD di backlight turns off after few minutes.

I'm experiencing a strange issue with my mid late 2009 iMac 27-inch.

When I power on the computer, the display backlight works properly but after few minutes the backlight turns off. However if I point a flashlight near the LCD the display is still booted up.

Do you have any suggestions for solving the problem?

Thank you!

iMac, macOS 10.12

Posted on Oct 28, 2020 2:29 PM

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Answer 1

den.thed

Level 10

91,540 points

Oct 28, 2020 5:38 PM in response to alessandr_os

Sounds like serious hardware issue (backlight inverter board, cable or display) and sadly, it's going to cost 4 or 5 time more to repair than it is worth.

My suggestion it to backup to an external hard drive using Time Machine or CarbonCopyCloner and replace it with a new or at least a newer Mac.

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LCD di backlight turns off after few minutes.

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