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General Information 87
Handling ESD-Sensitive Parts
Many electronic parts are sensitive to electrostatic
discharge (ESD). To prevent damage when working
with ESD-sensitive parts, observe the following
instructions. Do these in addition to taking all the
usual precautions, such as switching off the power
and unplugging the power cord.
•
Keep the ESD-sensitive part in its original shipping
container (or special ESD bag) until you are ready
to install the part.
•
Make the fewest possible movements with your
body to prevent an increase of static electricity
from clothing fibers, carpets, and furniture.
•
Put the ESD wrist strap on your wrist. Ensure the
machine is turned off. Connect the wrist strap to
the serial bracket mounting screw. This discharges
any static electricity in your body to the machine
frame.
•
Hold the ESD-sensitive part by its edge connector
shroud (cover). Do not touch its pins. If you are
removing a plug-able module, use the correct
tools.
•
Do not place the ESD-sensitive part on the
machine cover or on a metal table. If you need to
put down the ESD-sensitive part for any reason,
put it into it's original container.
•
Machine covers and metal tables are electrical
grounds. They increase the risk of damage
because they make a discharge path from your
body through the ESD-sensitive part. (Large metal
objects can be discharge paths without being
grounded.)
•
Prevent ESD-sensitive parts from being
accidentally touched by other persons. Reinstall
machine covers when you are not working on the
machine.
•
If possible, keep all ESD-sensitive parts in a
grounded metal cabinet.
•
Be extra careful when working with ESD-sensitive
parts while cold-weather heating is being used.
Low humidity increases static electricity.