HP m300 manual Grounding Workstations, Grounding Equipment

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Grounding Workstations

To prevent static damage at the workstation, follow these precautions:

Cover the workstation with approved static-dissipative material. Provide a wrist strap connected to the work surface and properly grounded tools and equipment.

Use static-dissipative mats, heel straps, or air ionizers to provide added protection.

Handle electrostatic sensitive components, parts, and assemblies by the case or PCB laminate. Handle them only at static-free workstations.

Avoid contact with pins, leads, or circuitry.

Turn off power and input signals before inserting and removing connectors or test equipment.

Use fixtures made of static-safe materials when fixtures must directly contact dissipative surfaces.

Keep work area free of conductive materials such as ordinary plastic assembly aids and plastic foam.

Use field service tools, such as cutters, screwdrivers, and vacuums, that are conductive.

Use a portable field service kit with a static-dissipative vinyl pouch that folds out into a work mat. Also, use a wrist strap and a ground cord for the work surface. Ground the cord to the chassis of the equipment undergoing test or repair.

Grounding Equipment

Use the following equipment to prevent static electricity damage to equipment:

Wrist Straps are flexible straps with a minimum of one megohm +/- 10% resistance in the ground cords. To provide proper ground, a strap must be worn snug against the skin. On grounded mats without banana-plug connectors, connect a wrist strap with alligator clips.

Heelstraps/Toestraps/Bootstraps can be used at standing workstations and are compatible with most types of shoes or boots. On conductive floors or dissipative floor mats, use them on both feet with a minimum of one megohm resistance between the operator and ground. To be effective, the conductive strips must be worn in contact with the skin.

4-4Removal and Replacement Preliminaries

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Contents Compaq ArmadaStation EM Maintenance and Service Guide Contents Appendix Using this Guide SymbolsTechnician Notes Locating Additional Information Serial NumberProduct Description ArmadaStation EM FeaturesExternal Connectors Security FeaturesArmadaStation EM Components ArmadaStation EM Front ComponentsDescription Function ArmadaStation EM Right Side Components Volume control switchArmadaStation EM Rear Panel Components ArmadaStation EM Rear Panel ComponentsDevice Activity LightsMultiBays MultiBay/Device CompatibilityHalf-Height Bay Security LockPCI Expansion Boards Before Replacing Parts TroubleshootingProblem Probable Cause Recommended Actions Problems and SolutionsSolving Docking and Undocking Problems Solving Expansion Board ProblemsSolving External Keyboard Problems Solving External Mouse ProblemsSolving Expansion Device Installation Problems Press any key or click the mouse Solving External Monitor ProblemsSerial Number Location Illustrated Parts CatalogCompaq ArmadaStation EM Components Compaq ArmadaStation EM ComponentsDescription Spare Parts Compaq ArmadaStation EM ComponentsPlastics Kit Components Plastics Kit Components Spare Part NumberItem Description MultiBay Option Cable Kit Components Spare Part Number MultiBay Option Cable KitMiscellaneous Spare Parts Miscellaneous not illustratedSpare Part Number Electrostatic Discharge Removal and Replacement PreliminariesRelative Humidity Event 10% 40% 55% Generating StaticPreventing Electrostatic Damage to Equipment Typical Electrostatic VoltagesMethod Preventing Damage to DrivesGrounding Methods Static Shielding Protection LevelsGrounding Equipment Grounding WorkstationsRecommended Materials and Equipment Service Considerations Tool and Software RequirementsScrews Plastic Parts Cables and ConnectorsRemoval and Replacement Procedures Expansion Base Disassembly Sequence Disassembly Sequence ChartDisconnecting the Expansion Base Preparing the Expansion Base for DisassemblyExpansion Base Feet External ComponentsRemoving the Tray TrayRemoving the Connector Cover Connector CoverRemoving the Rear Bezel Rear BezelSliding the Manual Release Lever Locating the Expansion Slots PCI Expansion Boards10.Removing the Expansion Slot Cover 11.Installing an Expansion Board 12.Removing the Top Cover Screws Top CoverSwing the top cover up and forward to remove it Figure Half-Height Bay Installing a Half-Height Drive15.Removing the Half-Height Bay Blank Bezel Cover 16.Removing the Half-Height Drive Screws 17.Attaching the Bezel Cage to the Half-Height Drive 18.Connecting the Power Cable 19.Connecting the Diskette Drive Cable 20.Connecting the Hard Drive Cable 21.Connecting the CD-ROM Drive/Audio Cable 22.Installing a Half-Height Drive 23.Removing the Left Speaker Left SpeakerMultiBay 24.Disconnecting the Half-Height Bay and Left Speaker Cables25.Removing the MultiBay and Control Panel 26.Removing the Control Panel Control PanelMechanism Assembly 28.Removing the Mechanism Assembly Power Supply 30.Removing the Power Supply 31.Removing the Backplane BackplaneExpansion Base Physical and Environmental Specifications PecificationsMetric 2Specifications Connector PIN Assignments Table A-1 Headphone JackTable A-2 Microphone Jack Table A-5 Serial Connector Table A-3Table A-4 Table A-6 Table A-7 Stereo Line-out JackTable A-8 Stereo Line-in Jack Signal Pin Table A-13 Docking ConnectorPDATA6 LD14 Pin Signal Power Cord SET Requirements Conductor Power Cord SetGeneral Requirements Conductor Power Cord Set Requirements-By Country Country-Specific RequirementsCountry Accredited Agency Applicable Note Numbers Index PCI Index
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