Sun Microsystems SPARCstation 4, Руководство по обслуживанию

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5-4 SPARCstation 4/Xterminal 1 Service Manual • January 1995
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Small Phillips-head screwdriver
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Small flat-blade screwdriver
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Wrist strap
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Antistatic surface
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Volt-ohmmeter (VOM) for checking voltages and continuity
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Needlenose pliers
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Conductive foam to store chips
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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:
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Hold the system board, SBus cards, DSIMMs, or system components only by the
edges.
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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.
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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.
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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.
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Transport boards, cards, or modules in an antistatic bag.
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Always wear an antistatic wrist strap connected to a metal surface on the chassis
when working on system components and parts.