Diagnostic leds – Apple iMac G5, 20-inch User Manual
Page 245
iMac G5, 20-inch Troubleshooting - 21
Diagnostic LEDs
Diagnostic LEDs
The iMac G5 has built-in diagnostic LEDs (shown below) on the main logic board that can
help you to troubleshoot the computer.
To access these LEDs, remove the back cover of the computer:
1.
Turn your computer off (choose Shut Down from the Apple menu). If you can't shut it
down that way, you can turn the computer off by pressing the power button for five
seconds.
2.
After the computer is off, disconnect all cables and the power cord from your
computer.
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