HP C2M21UA, C2M29UA manual Equipment guidelines, Material Use Voltage protection level

Page 35

Equipment guidelines

Grounding equipment must include either a wrist strap or a foot strap at a grounded workstation.

When seated, wear a wrist strap connected to a grounded system. Wrist straps are flexible straps with a minimum of one megohm ±10% resistance in the ground cords. To provide proper ground, wear a strap snugly against the skin at all times. On grounded mats with banana-plug connectors, use alligator clips to connect a wrist strap.

When standing, use foot straps and a grounded floor mat. Foot straps (heel, toe, or boot straps) can be used at standing workstations and are compatible with most types of shoes or boots. On conductive floors or dissipative floor mats, use foot straps 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.

The following grounding equipment is recommended to prevent electrostatic damage:

Antistatic tape

Antistatic smocks, aprons, and sleeve protectors

Conductive bins and other assembly or soldering aids

Nonconductive foam

Conductive tabletop workstations with ground cords of one megohm resistance

Static-dissipative tables or floor mats with hard ties to the ground

Field service kits

Static awareness labels

Material-handling packages

Nonconductive plastic bags, tubes, or boxes

Metal tote boxes

Electrostatic voltage levels and protective materials

The following table lists the shielding protection provided by antistatic bags and floor mats.

Material

Use

Voltage protection level

 

 

 

Antistatic plastic

Bags

1,500 V

 

 

 

Carbon-loaded plastic

Floor mats

7,500 V

 

 

 

Metallized laminate

Floor mats

5,000 V

 

 

 

Preliminary replacement requirements

27

Image 35
Contents HP 2000 Notebook PC Compaq Presario CQ58 First Edition October Document Part Number Safety warning notice Iv Safety warning notice Table of contents Specifications Power cord set requirements Viii Product description External media card Power requirementsOperating system Preinstalled Serviceability End-user replaceable partsOptical drive Wlan cards Right side External component identificationFinding your hardware and software information Locating softwareLeft side Component Description Speakers Produce sound FrontDisplay TouchPad TopLights Power light White The computer is onButton Esc key KeysBottom Serial number location Illustrated parts catalogIllustrated parts catalog Computer major componentsHard drive connector cable Power connector includes cablePower button board Speaker assembly includes cableDescription Spare part number Hard drive BatteryDisplay assembly components Display Screw Kit not illustrated Description Spare part numberDisplay back cover includes logo Mass storage devices Miscellaneous parts Spare part number Description Sequential part number listingIllustrated parts catalog Tools required Removal and replacement proceduresPreliminary replacement requirements Service considerationsCables and connectors Electrostatic discharge damage Grounding guidelinesPackaging and transporting guidelines Material Use Voltage protection level Equipment guidelinesSerial number Component replacement proceduresDescription Spare part number Rubber Feet Kit 639572-001 Computer feetBattery Service door Hard drive Page Optical drive Page Wlan module Memory module RTC battery Keyboard Page Top cover Page Page Description Spare part number Power button board 640884-001 Power button boardSpeaker assembly TouchPad button board Description Spare part number USB board 640883-001 USB boardSecurity cable lock Power connector Display assembly Page Page Page Page Page Page System board Fan/heat sink assembly see Fan/heat sink assembly on Page Fan/heat sink assembly Page Page Component replacement procedures Computer specifications Specifications39.6-cm 15.6-in display specifications Hard drive specifications Cache buffer Data transfer rate Random access timeTransfer mode Applicable discSpecifications Determining the Bios version Using Setup Utility Bios and System DiagnosticsStarting Setup Utility Bios Updating the BiosDownloading a Bios update Using System DiagnosticsPage Creating recovery media and backups Backing up, restoring, and recoveringSee Creating recovery media on Creating recovery mediaRestore and recovery For more information, see Removing the recovery partition on Remove everything and reinstall Windows Using Windows Refresh for quick and easy recoveryWhat you need to know Recovering using HP Recovery ManagerUsing recovery media to recover Removing the recovery partitionPage Requirements for all countries Power cord set requirementsCountry/region Accredited agency Applicable note number Requirements for specific countries and regionsPower cord set requirements Recycling Index BiosUSB Recovery media Creating