Power Subsystem; Power Supplies; Removing A Power Supply - Sun Microsystems Sun Fire V1280 Service Manual

6
C H A P T E R

Power Subsystem

This chapter described how to remove and install the various parts of the power
subsystems. It contains the following sections:
Section 6.1, "Power Supplies" on page 6-1
Section 6.2, "Power Inlet Box" on page 6-3
Section 6.3, "Power Distribution Board" on page 6-5
A power supply can be replaced without powering down the system.
6.1

Power Supplies

Caution – Use proper ESD grounding techniques when handling components. Wear
an antistatic wrist strap and use an ESD-protected mat. Store ESD-sensitive
components in antistatic bags before placing them on any surface.
Note – A minimum of two power supplies are required to be powered and working
normally in order for the system to function correctly.
6.1.1

Removing a Power Supply

1. Open the right-hand front door of the system.
2. Attach the wrist strap.
Refer to Section 2.6, "Antistatic Precautions" on page 2-5. Connect the ESD wrist
strap or foot strap to the system. Place a grounded ESD mat close to the system.
6-1