Powering Off The System Unit - Sun Microsystems Sun Ultra 60 Service Manual

6.2

Powering Off the System Unit

Caution -
Failure to do so may result in data loss.
Caution -
handling components. When servicing or removing system unit components, attach
an ESD strap to your wrist, then to a metal area on the chassis, and then disconnect
the power cord from the system unit and the wall receptacle. Following this caution
equalizes all electrical potentials with the system unit.
To power off the system unit:
1. Back up system files and data.
2. Halt the system.
Caution -
the system unit; a trickle voltage remains in the power supply. To remove all power
from the system unit, disconnect the AC power cord.
3. Set the front panel power switch to the Off position (Figure 6–3).
4. Verify the following:
a. The front panel LED is off.
b. The system fans are not spinning.
Caution -
5. Turn off the power to the monitor.
Prior to turning off the system unit power, exit from the operating system.
Wear an antistatic wrist strap and use an ESD-protected mat when
Pressing the front panel power switch does not remove all power from
Disconnect the AC power cord prior to servicing system components.
6-3
Power On and Off