Workstation Guidelines; Equipment Guidelines - HP Chromebook x360 12b Maintenance And Service Manual

Workstation guidelines

Follow these grounding workstation guidelines:
Cover the workstation with approved static-shielding material.
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Use a wrist strap connected to a properly grounded work surface and use properly grounded tools
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and equipment.
Use conductive field service tools, such as cutters, screw drivers, and vacuums.
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When fixtures must directly contact dissipative surfaces, use fixtures made only of static-safe materials.
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● Keep the work area free of nonconductive materials, such as ordinary plastic assembly aids
and polystyrene foam.
● Handle ESD-sensitive components, parts, and assemblies by the case or PCM laminate. Handle these items
only at static-free workstations.
● Avoid contact with pins, leads, or circuitry.
Turn off power and input signals before inserting or removing connectors or test equipment.
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Equipment guidelines

Grounding equipment must include either a wrist strap or a foot strap at a grounded workstation.
When seated, wear a wrist strap connected to a grounded system. Wrist straps are flexible straps with a
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minimum of 1 MΩ ±10% resistance in the ground cords. To provide proper ground, wear a strap snugly
against the skin at all times. On grounded mats with banana-plug connectors, use alligator clips to connect
a wrist strap.
When standing, use foot straps and a grounded floor mat. Foot straps (heel, toe, or boot straps) can be
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used at standing workstations and are compatible with most types of shoes or boots. On conductive floors
or dissipative floor mats, use foot straps on both feet with a minimum of 1 MΩ ±10% resistance between
the operator and ground. To be effective, the conductive must be worn in contact with the skin.
The following grounding equipment is recommended to prevent electrostatic damage:
● Antistatic tape
Antistatic smocks, aprons, and sleeve protectors
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Conductive bins and other assembly or soldering aids
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Nonconductive foam
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Conductive tabletop workstations with ground cords of 1 MΩ ±10% resistance
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● Static-dissipative tables or floor mats with hard ties to the ground
● Field service kits
Static awareness labels
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Material-handling packages
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Nonconductive plastic bags, tubes, or boxes
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Metal tote boxes
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● Electrostatic voltage levels and protective materials
20 Chapter 4 Removal and replacement procedures preliminary requirements