Symbols; Table 5-1 Safety Precautions - Sun Microsystems SPARCstation 5 Model 110 Service Manual

To protect both yourself and the equipment, observe the safety precautions listed in
TABLE 5-1
TABLE 5-1
Item
AC power cord
Wrist strap
ESD mat
Printed circuit
boards
Cover
SBus slot filler
panels
TurboSPARC chip
heat sink
5.2

Symbols

The following symbols mean:
5-2 SPARCstation 5 Model 110 Service Manual • November 1996
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Safety Precautions
Problem
Electric shock
Grounding
Electrostatic
Discharge (ESD)
ESD
ESD
System damage
and overheating
System damage
and overheating
Heat, burns
Precaution
Unplug the AC cord from the AC wall socket
before working on the power supply.
Leave the AC power cord plugged into the
AC wall outlet when replacing drives,
DSIMMs, chips, or the system board. Leaving
the AC power cord plugged into the wall
outlet provides a grounding path for the wrist
strap, which must be attached.
Wear a wrist strap when handling printed
circuit boards, drives, or other components
such as DSIMMs.
An approved antistatic mat provides
protection from static damage when used
with a wrist strap. The mat also cushions and
protects small parts that are attached to
printed circuit boards. Chapter 12 ", lists the
part number of the mat.
Handle a printed circuit board by the edges
only. Store a board in an antistatic bag.
Replace the cover after performing service on
the system.
Install filler panels in all unused SBus
openings. Openings on the back of the system
board reduce the cooling capability of the
system.
Do not touch the TurboSPARC chip. The heat
sink can be hot enough to cause personal
injury.