5-4 SPARCstation 5 Model 110 Service Manual • November 1996
■ Small Phillips-head screwdriver
■ Small flat-blade screwdriver
■ Wrist strap
■ Antistatic surface
■ Volt-ohmmeter (VOM) for checking voltages and continuity
■ Needlenose pliers
■ Conductive foam to store chips
■ Container for screws
5.5 Electrostatic Discharge (ESD)
Precautions
Caution – The system chassis power must be turned off, and the AC power cord
must remain plugged in to ensure a proper ground.
To minimize electrostatic discharge, observe the following precautions:
■ Hold the system board, SBus cards, DSIMMs, or system components only by the
edges.
■ When removing a board, card, or module from an antistatic bag, lay it on an
antistatic surface such as a Sun ESD mat, an antistatic bag, or a disposable
antistatic mat.
■ Do not place the boards, cards, or modules on an unprotected surface. Use a
cushioned antistatic mat or antistatic bag. Connectors and components have very
thin pins that bend easily.
■ Do not use an oscilloscope or VOM (volt-ohmmeter) probe on the components.
The soldered pins are easily damaged or shorted by the probe point.
■ Transport boards, cards, or modules in an antistatic bag.
■ Always wear an antistatic wrist strap connected to a metal surface on the chassis
when working on system components and parts.
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