HP 9000 Series 310 Service Information Manual page 9

Safety Considerations
Your Attention, Please
Warnings, cautions and notes are used through out this document to alert the user to conditions
of inlportance. They are used as follows:
• WARNINGS relate to activity which, if not properly performed, could result in injury to
personnel or loss of life.
• CAUTIONS relate to activity, which if not properly performed, could result in damage to
or destruction of equipment. In this case, injury to personnel is typically not a concern.
• NOTES provide information that will help understand situations and better prepare peo-
ple in accomplishing the job.
Examples:
WARNING
The power supply presents a hazard to personnel when it is energized
and exposed. Extreme care must be taken when connecting a voltmeter
probes to the test points. Accidental bridging of the +5 volt supply
to ground by rings or other jewelry can cause severe personal injury.
De-energize the equipment by turning off the unit and removing the
power cord before connecting or removing test probes.
CAUTION
The electronic assemblies in these products are susceptible to damage
by electro-static discharge. Extreme care must be used when handling
printed circuit assemblies. Handle printed circuit assemblies only when
grounded to an anti-static workstation.
NOTE
Hewlett-Packard supports field repair only to the assembly level. The
fault is diagnosed to the assembly that is causing the problem. That
assembly is then replaced with a new or rebuilt one.
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