Handling Esd-Sensitive Parts - IBM ThinkPad 500 Hardware Maintenance Manual

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1.5 Handling ESD-Sensitive Parts

Many products use parts that are known to be sensitive to electrostatic

discharge (ESD).

To prevent damage when you work with ESD-sensitive

parts, observe the following instructions.

all the usual precautions, such as switching off (O) the power before

removing logic cards.

Keep the ESD-sensitive part in its original shipping container (a

special ESD bag) until you are ready to install the part into the

machine.

Make the least 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.

off (O).

This discharges any static electricity in your body to the

machine frame.

Hold the ESD-sensitive part by its edge connector shroud (cover).

not touch its pins.

correct tool.

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,

first put it into its special bag.

Note:

Machine covers and metal tables are electrical grounds.

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

personnel, such as CSRs or customers.

you are not working on the machine.

If possible, keep all ESD-sensitive parts in a grounded metal cabinet

(case).

Be extra careful while working with ESD-sensitive parts when

cold-weather heating is used because low humidity increases static

electricity.

IBM ThinkPad 500 HMM