●
Avoid contact with pins, leads, or circuitry.
●
Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive
foam.
Personal Grounding Methods and Equipment
Use the following equipment to prevent static electricity damage to equipment:
●
Wrist straps
are flexible straps with a maximum of one-megohm ± 10% resistance in the ground
cords. To provide proper ground, a strap must be worn snug against bare skin. The ground cord
must be connected and fit snugly into the banana plug connector on the grounding mat or
workstation.
●
Heel straps/Toe straps/Boot straps
can be used at standing workstations and are compatible
with most types of shoes or boots. On conductive floors or dissipative floor mats, use them on both
feet with a maximum of one-megohm ± 10% resistance between the operator and ground.
Static Shielding Protection Levels
Method
Voltage
Antistatic plastic
Carbon-loaded plastic
Metallized laminate
1,500
7,500
15,000
Grounding the Work Area
To prevent static damage at the work area, use the following precautions:
●
Cover the work surface with approved static-dissipative material. Provide a wrist strap connected to
the work surface and properly grounded tools and equipment.
●
Use static-dissipative mats, foot straps, or air ionizers to give added protection.
●
Handle electrostatic sensitive components, parts, and assemblies by the case or PCB laminate.
Handle them only at static-free work areas.
●
Turn off power and input signals before inserting and removing connectors or test equipment.
●
Use fixtures made of static-safe materials when fixtures must directly contact dissipative surfaces.
●
Keep work area free of nonconductive materials such as ordinary plastic assembly aids and
Styrofoam.
●
Use field service tools, such as cutters, screwdrivers, and vacuums, that are conductive.
Recommended Materials and Equipment
Materials and equipment that are recommended for use in preventing static electricity include:
●
Antistatic tape
●
Antistatic smocks, aprons, or sleeve protectors
●
Conductive bins and other assembly or soldering aids
30 Chapter
6
Identifying the Chassis, Routine Care, and Disassembly Preparation
ENWW
Summary of Contents for Compaq dx2308
Page 1: ...Service Reference Guide HP Compaq dx2300 and dx2308 Business PC ...
Page 4: ...iv About This Book ENWW ...
Page 20: ...12 Chapter 2 Computer Setup F10 Utility ENWW ...
Page 26: ...18 Chapter 3 HP Insight Diagnostics ENWW ...
Page 27: ...4 Desktop Management ENWW 19 ...
Page 44: ...36 Chapter 6 Identifying the Chassis Routine Care and Disassembly Preparation ENWW ...
Page 87: ...12 T M D S Data3 24 T M D S Clock ENWW DVI Connector 79 ...
Page 88: ...80 Appendix A Connector Pin Assignments ENWW ...
Page 101: ...W Web sites BIOS download 21 ROM Flash 21 software support 22 ENWW Index 93 ...
Page 102: ...94 Index ENWW ...