HP CQ57-218NR, CQ57-229WM, CQ57-212NR Equipment guidelines, Material Use Voltage protection level

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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 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 plastics

Bags

1,500 V

 

 

 

Carbon-loaded plastic

Floor mats

7,500 V

 

 

 

Metallized laminate

Floor mats

5,000 V

 

 

 

Preliminary replacement requirements

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Contents Compaq Presario CQ57 Notebook PC First Edition March Document Part Number Safety warning notice Iv Safety warning notice Table of contents Specifications Power cord set requirements Viii Processors Product descriptionChipset NorthbridgeCategory Description Computer models Switchable discrete graphics notEquipped with an AMD processor Intel processor PanelOptical drive select WirelessAudio and video EthernetCard PowerPorts KeyboardSecurity Operating system PreinstalledServiceability End-user replaceable parts Display External component identificationComponent Description HP HP MediaSmart HPComponent ButtonFn key KeysLights TouchPad Environmental Notices Left sideRight side Bottom Illustrated parts catalog Service tagService technician determine what components Computer major components Component Spare part number Power button board includes cablePlastics Kit, includes Power connector cableWlan module BatteryComponent Spare part number Cable Kit, includes 646119-001 Cable KitDisplay assembly subcomponents Hard Drive Hardware Kit , includes Mass storage devicesScrew Kit Miscellaneous partsComponent Spare part number HP Smart AC adapter Plastics Kit Spare part number Description Sequential part number listingHard drive bracket, or screws Sequential part number listing 646181-001 Preliminary replacement requirements Removal and replacement proceduresService considerations Tools requiredDrive handling Grounding guidelinesPreliminary replacement requirements Packaging and transporting guidelines Material Use Voltage protection level Equipment guidelinesService tag Component replacement proceduresComputer feet Description Spare part number BatteryOptical drive select models only Page Page Wlan module Page Memory module Hard drive Page Page Keyboard Page Page Top cover Page Page Page Power button board TouchPad button board Page USB board Power connector cable Page Speakers Optical drive connector cable Display assembly Page Page Page Page Page Page System board Page Page RTC battery Page Fan/heat sink assembly Page Component replacement procedures Page Page Page Processor Page Using Setup Utility Setup Utility Bios and System DiagnosticsStarting Setup Utility Changing the language of Setup UtilityDisplaying system information Navigating and selecting in Setup UtilityUpdating the Bios Restoring factory settings in Setup UtilityExiting Setup Utility Determining the Bios version Using System Diagnostics Computer specifications SpecificationsInch display specifications Hard drive specifications Restore Backup and recoveryCreating restore media Select Start All Programs Recovery Manager Recovery Manager Performing a system restoreChanging the computer boot order Restoring using the restore mediaBacking up and recovering your information Using Windows system restore points Using Windows Backup and RestoreCreate a system restore point Requirements for all countries Power cord set requirementsCountry/region Accredited agency Applicable note number Requirements for specific countries and regionsRecycling BatteryPage Page Page Page Page Index Hdmi Procedures
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