Apple MD094LL/A Manuale Utente

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

 2010-09-09

: 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.