IBM i 830, Repair Manual

Page: 969 / 1000

Appendix C. Working with Electrostatic Discharge-Sensitive
Parts
When holding or installing electrostatic discharge-sensitive (ESD) parts, use the
ESD handling kit (IBM* part 6428316) or similar. Read the instructions inside the
top cover of the carrying case.
All system logic cards are sensitive to electrostatic discharge (ESD). To prevent
damage to ESD-sensitive logic cards, follow these instructions:
v
Switch off power to the system or device before removing logic cards.
v
Keep the ESD-sensitive card in the original shipping container until you install
the card in the machine.
v
When holding logic cards, move your body as little as possible to prevent an
increase of static electricity from clothing fibers, carpet fibers, and furniture.
v
Just before touching the ESD-sensitive card, discharge any static electricity in
your body by touching the metal frame or cover of the machine. If possible,
keep one hand on the frame when, for example, you are installing or removing a
logic card.
v
Hold the ESD-sensitive card by the edge or connector shroud cover. Do not
touch the pins. If you are removing a field-replaceable module, use the correct
tool.
v
Return the card to the special container when it is not being used. Do not place
the ESD-sensitive card on the machine cover or on a metal table. Machine covers
and metal tables are electrical grounds. They make a discharge path from the
ESD-sensitive card through your body to ground, increasing the risk of damage
to the card. Large metal objects can be discharge paths without being grounded.
v
Prevent ESD-sensitive cards from being touched accidentally by other persons.
Reinstall machine covers when you are not working on the machine. Do not
place unprotected ESD-sensitive cards on a table.
v
Be careful when working with ESD-sensitive cards during cold weather heating.
Cold weather heating causes low humidity and increases the risk of static
electricity.
© Copyright IBM Corp. 2000, 2001
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