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xvi About This Guide
Precautions
Follow these precautions when you’re carrying out the procedures in this book.
Electrostatic Discharge Precautions
Static electricity collects on all nonconducting material, such as paper, cloth, and
plastic. An electrostatic discharge (ESD) can easily damage a controller or other
subsystem component even though you may not see or feel the discharge. Follow
these precautions whenever you’re servicing a subsystem or one of its components:
■ Always use an ESD wrist strap when servicing the controller or other
components in the subsystem. Make sure that the strap contacts bare skin and fits
snugly, and that its grounding lead is attached to a bus that is a verified earth
ground.
■ Before touching any circuit board or component, always touch a verifiable earth
ground to discharge any static electricity that may be present in your clothing.
■ Always keep circuit boards and components away from nonconducting material.
■ Always keep clothing away from circuit boards and components.
■ Always use antistatic bags and grounding mats for storing circuit boards or
components during replacement procedures.
■ Always keep the ESD cover over the program card when the card is in the
controller. If you remove the card, put it in its original carrying case. Never touch
the contacts or twist or bend the card while you’re handling it.
■ Do not touch the connector pins of a cable when it is attached to a component or
host.
Component Precaution
System components referenced in this manual comply to regulatory standards
documented herein. Use of other components in their place may violate country
standards, negate regulatory compliance, or invalidate the warranty on your product.