5-2
SPARCstation 4 Model 110 Service Manual • July 1996
To protect both yourself and the equipment, observe the safety precautions listed in
TABLE 5-1
.
5.2
Symbols
The following symbols mean:
TABLE 5-1
Safety Precautions
Item
Problem
Precaution
AC power cord
Electric shock
Unplug the AC cord from the AC wall
socket before working on the power supply.
Grounding
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.
Wrist strap
Electrostatic
Discharge (ESD)
Wear a wrist strap when handling printed
circuit boards, drives, or other components
such as DSIMMs.
ESD mat
ESD
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.
Printed circuit boards
ESD
Handle a printed circuit board by the edges
only. Store a board in an antistatic bag.
Cover
System damage
and overheating
Replace the cover after performing service
on the system.
SBus slot filler panels
System damage
and overheating
Install filler panels in all unused SBus
openings. Openings on the back of the
system board reduce the cooling capability
of the system.
microSPARC™ II chip
heat sink
Heat, burns
Do not touch the metal heat sink on the
microSPARC II chip. The heat sink can be
hot enough to cause personal injury.
Summary of Contents for SPARCstation 4 110
Page 24: ...1 6 SPARCstation 4 Model 110 Service Manual July 1996...
Page 36: ...2 12 SPARCstation 4 Model 110 Service Manual July 1996...
Page 46: ...3 10 SPARCstation 4 Model 110 Service Manual July 1996...
Page 108: ...10 4 SPARCstation 4 Model 110 Service Manual July 1996...
Page 146: ...12 6 SPARCstation 4 Model 110 Service Manual July 1996...
Page 150: ...A 4 SPARCstation 4 Model 110 Service Manual July 1996...
Page 160: ...B 10 SPARCstation 4 Model 110 Service Manual July 1996...
Page 174: ...Glossary 4 SPARCstation 4 Model 110 Service Manual July 1996...