HP Pavilion dm1 Maintenance And Service Manual page 48

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Keep the work area free of nonconductive materials, such as ordinary plastic assembly aids
and Styrofoam.
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Handle ESD-sensitive components, parts, and assemblies by the case or PCM laminate. Handle
these items only at static-free workstations.
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Avoid contact with pins, leads, or circuitry.
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Turn off power and input signals before inserting or removing connectors or test equipment.
40 Chapter 4 Removal and replacement procedures