Compaq 486 Maintenance And Service Manual page 56

Grounding Workstations
To provide a grounded workstation, do the following:
o Cover workstations with approved static dissipating material.
wrist strap connected to work surface and properly grounded tools and
equipment.
o Use static dissipating mats, heel straps, or air ionizers to give added
protection.
o Handle electrostatic sensitive components, parts, and assemblies by the
case or PCB laminate.
o Avoid contact with pins, leads, or circuitry.
o Turn off power and input signals before inserting and removing connectors
or test equipment to the computer.
o Use fixtures made of static safe materials when fixtures must directly
contact dissipating surfaces.
o Keep work area free of non conductive materials such as ordinary plastic
assembly aids and Styrofoam.
o Use field service tools, such as cutters, screwdrivers, vacuums, that are
conductive.
o Use a portable field service kit with a static dissipating vinyl pouch that
folds out to a work mat.
work surface. Ground the cord to the chassis of the equipment undergoing
test or repair.
Grounding Equipment
Use the following equipment to prevent static electricity damage to
equipment:
Wrist Straps are flexible straps with a minimum of 1 megohm ñ 10%
resistance in the ground cords.
worn snug against the skin.
connect a wrist strap with alligator clips.
Heelstraps/Toestraps/Bootstraps can be used at standing workstations and are
compatible with most types of shoes or boots.
dissipative floor mats, use them on both feet with a minimum of 1 megohm
resistance between operator and ground.
strips must be worn in contact with the skin.
Other materials and equipment that are recommended for use in preventing
static electricity include:
o Antistatic tape
o Antistatic smocks, aprons or sleeve protectors
o Conductive bins and other assembly or soldering aids
Handle them only at static free workstations.
Also use a wrist strap and a ground cord for the
To provide proper ground, a strap must be
On grounded mats without banana plug connectors,
To be effective the conductive
Provide a
On conductive floors or