Safety Precautions

WARNING: HIGH VOLTAGE: The AC/DC power supply PCB remains powered up whenever the system is plugged in, whether or not the system has been turned on. Use extreme caution when troubleshooting the system with the front bezel removed.

Important: If the computer is shut down by removing the power cord, allow the power supply a good 2-3 minutes to discharge the capacitors before handling it. However, if you select “Shut Down” via the Apple menu, the computer will discharge the power supply capacitor almost immediately.

2010-09-09

iMac (27-inch, Mid 2010) Basics — Overview  14

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Apple MD094LL/A manual Safety Precautions