IBM Aptiva 2158 Hardware Maintenance Service

Also see for Aptiva 2158: Maintenance and service manual

126Handling ESD-Sensitive PartsMany electronic parts are sensitive to electrostatic discharge (ESD). To preventdamage when working with ESD-sensitive parts, observe the followinginstructions. Do these in addition to taking all the usual precautions, such asswitching off the power and unplugging the power cord.• Keep the ESD-sensitive part in its original shipping container (or specialESD bag) until you are ready to install the part.• Make the fewest possible movements with your body to prevent an increaseof 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. Thisdischarges any static electricity in your body to the machine frame.• Hold the ESD-sensitive part by its edge connector shroud (cover). Do nottouch 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 metaltable. If you need to put down the ESD-sensitive part for any reason, put itinto it's original container.• Machine covers and metal tables are electrical grounds. They increase therisk of damage because they make a discharge path from your bodythrough the ESD-sensitive part. (Large metal objects can be dischargepaths without being grounded.)• Prevent ESD-sensitive parts from being accidentally touched by otherpersons. Reinstall machine covers when you are not working on themachine.• If possible, keep all ESD-sensitive parts in a grounded metal cabinet.• Be extra careful when working with ESD-sensitive parts while cold-weatherheating is being used. Low humidity increases static electricity.