HP CQ62-215TU manual Packaging and transporting guidelines, Relative humidity Event 10% 40% 55%

Page 47

Removal and replacement procedures

The following table shows how humidity affects the electrostatic voltage levels generated by different activities.

ÄCAUTION: A product can be degraded by as little as 700 V.

 

 

Relative humidity

 

 

 

 

 

Event

10%

40%

55%

 

 

 

 

Walking across carpet

35,000 V

15,000 V

7,500 V

 

 

 

 

Walking across vinyl floor

12,000 V

5,000 V

3,000 V

 

 

 

 

Motions of bench worker

6,000 V

800 V

400 V

 

 

 

 

Removing DIPS from plastic tube

2,000 V

700 V

400 V

 

 

 

 

Removing DIPS from vinyl tray

11,500 V

4,000 V

2,000 V

 

 

 

 

Removing DIPS from Styrofoam

14,500 V

5,000 V

3,500 V

 

 

 

 

Removing bubble pack from PCB

26,500 V

20,000 V

7,000 V

 

 

 

 

Packing PCBs in foam-lined box

21,000 V

11,000 V

5,000 V

 

 

 

 

Packaging and transporting guidelines

Follow these grounding guidelines when packaging and transporting equipment:

To avoid hand contact, transport products in static-safe tubes, bags, or boxes.

Protect ESD-sensitive parts and assemblies with conductive or approved containers or packaging.

Keep ESD-sensitive parts in their containers until the parts arrive at static-free workstations.

Place items on a grounded surface before removing items from their containers.

Always be properly grounded when touching a component or assembly.

Store reusable ESD-sensitive parts from assemblies in protective packaging or nonconductive foam.

Use transporters and conveyors made of antistatic belts and roller bushings. Be sure that mechanized equipment used for moving materials is wired to ground and that proper materials are selected to avoid static charging. When grounding is not possible, use an ionizer to dissipate electric charges.

Workstation guidelines

Follow these grounding workstation guidelines:

Cover the workstation with approved static-shielding material.

Use a wrist strap connected to a properly grounded work surface and use properly grounded tools and equipment.

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

When fixtures must directly contact dissipative surfaces, use fixtures made only of static-safe materials.

Keep the work area free of nonconductive materials, such as ordinary plastic assembly aids and Styrofoam.

Handle ESD-sensitive components, parts, and assemblies by the case or PCM laminate. Handle these items only at static-free workstations.

Avoid touching pins, leads, and circuitry. Handle electronic components as little as possible.

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

Maintenance and Service Guide

4–3

Image 47 Contents
Compaq Presario CQ62 Notebook PC HP G62 Notebook PC Maintenance and Service GuidePage Copyright 2010 Hewlett-Packard Development Company, L.P Revision Publication Date Description Revision HistorySafety warning notice Page Contents Setup Utility 10Recycling Contents Vii Product description Microphone Hard drivesOptical drives WebcamExternal media PowerOperating system Preinstalled Serviceability End-user replaceable partsProduct description Component Function External component identificationTop components TouchPadComponent Description LightsButtons Panel System and Security Power OptionsEsc key KeysFn key Left-side components Right-side components Bottom components Display components Wireless antennas Additional hardware components Illustrated parts catalog Service tagComputer major components Power button board Touchpad button board Speaker assembly includes cableRTC battery Description Spare part number613586-001 Wireless Wlan module Item Description Spare part number Base enclosure BatteryPower connector includes cable USB boardDisplay assembly components LCD cable kit Description Spare part number Display bezelDisplay hinges Webcam boardItem Description Spare part number Plastics Kit 595200-001 Plastics KitMass storage devices Screw Kit Miscellaneous partsDescription Spare part number AC adapter Cable KitSpare part number Description number Sequential part number listingFor models 1.0 and 1.1 only Webcam Spare part number Description number Computer models for models 1.0 and 1.1 only For model 1.1 only With webcam for model 1.2 only Tools required Removal and replacement proceduresPreliminary replacement requirements Service considerationsDrive handling Grounding guidelinesRelative humidity Event 10% 40% 55% Packaging and transporting guidelinesMaterial Use Voltage protection level Equipment guidelinesService tag Component replacement proceduresComputer feet Battery Hard drive Removal and replacement procedures Memory module Removal and replacement procedures Wireless module Reverse this procedure to install the wireless module Optical drive Page Removal and replacement procedures Keyboard Removal and replacement procedures Removal and replacement procedures Top cover Removal and replacement procedures Removal and replacement procedures Description Spare part number Power button board 595204-001 Power button boardTouchpad button board Speakers Display assembly Removal and replacement procedures Removal and replacement procedures Removal and replacement procedures Removal and replacement procedures Removal and replacement procedures Removal and replacement procedures Description Spare part number USB board 595205-001 USB boardPower connector Bluetooth module Modem System board Removal and replacement procedures Removal and replacement procedures Description Spare part number RTC battery 602745-001 RTC batteryWith UMA graphics subsystem memory Fan/heat sink assemblyRemoval and replacement procedures Removal and replacement procedures Removal and replacement procedures Removal and replacement procedures Removal and replacement procedures Processor Removal and replacement procedures Removal and replacement procedures RJ-11 connector Removal and replacement procedures Removal and replacement procedures Changing the language of Setup Utility Setup UtilityStarting Setup Utility Displaying system information Navigating and selecting in Setup UtilityRestoring default settings in Setup Utility Security menu Exiting Setup UtilitySetup Utility menus Main menuPrimary Hard Disk Self Test System Configuration menuDiagnostics menu Computer specifications Specifications39.6-cm 15.6-in HD display specifications Hard drive specifications Cache buffer Data transfer rate Access timeApplicable disc Read Write Hardware DMA System function System DMA specificationsDirect memory access controller Hardware IRQ System function System interrupt specificationsSystem I/O address specifications Address hex System function shipping configurationAddress hex System function shipping configuration Memory address System function System memory map specificationsMemory address System function Specifications Creating recovery discs Backup and recoveryBackup suggestions When to back upWhen to create restore points Using system restore pointsRecovering from the recovery discs Performing a recoveryAudio-out headphone Connector pin assignmentsPin Signal Audio-in microphoneExternal monitor Hdmi RJ-45 network RJ-11 modemUniversal Serial Bus Connector pin assignments Requirements for all countries and regions Power cord set requirementsCountry/region Accredited agency Applicable note number Requirements for specific countries and regionsDisplay BatteryRecycling Recycling Maintenance and Service Guide 10-3 10-4 Maintenance and Service Guide 10-5 10-6 Index Keys Maintenance and Service Guide Index-3 Index-4
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