iMac (21.5-inch, Late 2009) Basics — Safety 15
2010-11-18
Safety
Warning: HIGH VOLTAGE: The AC/DC power supply PCB remains powered up whenever
system is plugged in, whether or not system has been turned on. Use extreme caution
when troubleshooting system with glass panel removed.
Important: If computer is shut down by removing power cord, allow power supply a good 2-3
minutes to discharge capacitors before handling it. However, if you select “Shut Down” via the
Apple menu, the computer will discharge power supply capacitor almost immediately.
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