Before You Begin; Tools; Avoiding Electrostatic Discharge - Intergraph InterServe 90 System Reference Manual

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Before You Begin

WARNING Disconnect the system and peripheral devices from AC power before servicing
internal components! Failure to remove AC power may result in equipment
damage or personal injury.
WARNING Follow all warnings and cautions in the servicing instructions. If you fail to
follow documented procedures, personal injury and damage to equipment can
result.
CAUTION Use an antistatic wrist strap for all servicing procedures to avoid the possibility of
electrostatic discharge.
"Right side" and "left side" are as seen from the front of the unit.

Tools

You will need the following tools to service the system:
Antistatic wrist strap
Quarter-inch nutdriver
No. 1 and No. 2 Phillips screwdrivers
Three-sixteenth-inch or 5 mm nutdriver
Five-sixteenth-inch or 8 mm nutdriver
Small single-slot screwdriver

Avoiding Electrostatic Discharge

Sensitive components inside the base unit can be damaged by static electricity. To protect against
this possibility, take the following precautions when working with internal components.
Unplug the unit from AC power before servicing any electronic component inside the chassis.
Touch the bare metal of the base unit to ensure the base unit and your body are at the same
electric potential.
Handle all printed circuit boards as little as possible and by the edges only. Leave new parts
in their protective packaging until you install them.
Use a disposable or reusable antistatic wrist strap when servicing or upgrading the system.
Once a disposable wrist strap is used, it cannot be used again.