Mac Electrical Safety

Danger

The power supply remains powered when the device is plugged in whether or not the device has been turned on. Don’t touch the logic board or power supply while the device is plugged into an electrical outlet.

Take the following precautions before working on a Mac with exposed, potentially energized parts:

• Never remove or install any parts while the device is plugged into an electrical outlet.

• Always wait at least 2 minutes after unplugging the device to allow the logic board or power supply or both to discharge.

• Don’t touch the logic board or power supply before the 2-minute discharge wait time has passed.

• Remove mobile phones and metal accessories (rings, watches, necklaces) from your body.

• Do not wear an electrostatic discharge (ESD) wrist strap.

• Use only nonconductive tools (such as a black stick) as instructed to keep fingers away from potentially energized areas.

• Focus on the work you’re performing and be aware of the grounded objects near you.