Safety
WARNING: HIGH VOLTAGE: The highlighted module below is an AC/DC power supply that poses a shock hazard. When the computer is under power, be aware that the power supply contains high voltages that pose a potential hazard to your personal safety. Never work on or near the power supply with the unit powered on; and as a further precaution, always make sure the unit is unplugged when working on it with the front bezel removed. A white, shock- hazard warning symbol is
WARNING:
Text or photographs marked by this symbol indicate that a potential hazard to your personal safety exists from a high voltage source.
The AC/DC power supply board is a
•Disconnect power to the system before performing maintenance.
•Disconnect ESD wrist straps when working on a plugged in system.
•Don’t work alone. In the event of an electrical shock, it is important to have another individual present who can provide assistance.
•Keep one hand in your pocket when working on any computer that is plugged in. This will help ensure that your body does not provide a path to ground in the event that you accidentally make contact with the line voltage.
•Don’t wear jewelry, watches, necklaces, or other metallic articles that could present a risk if they accidentally make contact with the power supply circuitry.
iMac
