HP 493269-001 Technical Information

bCompaq Presario CQ20 Notebook PCMaintenance and Service GuideDocument Part Number: 482402-002October 2008This guide is a troubleshooting reference us

1–4 Maintenance and Service GuideProduct descriptionOperating system Preinstalled: Windows Vista® Home Basic 32 with Office 2007 Ready X XWindows Vis

7–10 Maintenance and Service GuideScrew listingPhillips PM2.0×7.0 captive screw Where used: 1 captive screw that secures the fan to the base enclosur

Screw listingMaintenance and Service Guide 7–11Phillips PM2.0×10.0 captive screw Where used: 4 captive screws that secure the heat sink to the system

7–12 Maintenance and Service GuideScrew listingPhillips PM2.5×10.0 captive screw Where used: 1 captive screw that secures the hard drive to the comput

Screw listingMaintenance and Service Guide 7–13Phillips PM3.0×3.0 screw Where used: 4 screws that secure the hard drive bracket to the hard driveColor

7–14 Maintenance and Service GuideScrew listingPhillips PM3.0×4.0 screw Where used: 1 screw that secures the speaker assembly to the base enclosureCol

Screw listingMaintenance and Service Guide 7–15Phillips T2.0×2.0BH screw Where used: 3 screws (in the battery bay) that secure the top cover to the b

7–16 Maintenance and Service GuideScrew listingTorx T8M2.5×6.0 slotted screw Where used: 1 screw that secures the optical drive to the computerWhere

Screw listingMaintenance and Service Guide 7–17Where used: 2 screws that secure the top cover to the base enclosure (top)Where used: 4 screws that sec

7–18 Maintenance and Service GuideScrew listingWhere used: 1 screw that secures the system board to the base enclosureWhere used: 10 screws that secur

Maintenance and Service Guide 8–18Backup and recoveryRecovery after a system failure is as complete as your most current backup. HP recommends that yo

Maintenance and Service Guide 2–12External component identificationTop componentsDisplay componentsItem Component Description 1Wireless antennae (2) (

8–2 Maintenance and Service GuideBackup and recovery Only one set of recovery discs can be created per computer. Number each disc before inserting

Backup and recoveryMaintenance and Service Guide 8–3Using system restore pointsWhen you back up your system, you are creating a system restore point.

8–4 Maintenance and Service GuideBackup and recoveryPerforming a recovery✎You can recover only files that you have previously backed up. HP recommends

Maintenance and Service Guide 9–19Connector pin assignmentsAudio-out (headphone)Audio-in (microphone) Pin Signal 1 Audio out, left channel 2 Audio o

9–2 Maintenance and Service GuideConnector pin assignmentsExternal monitor Pin Signal 1 Red analog 2 Green analog 3 Blue analog 4 Not connected 5 Grou

Connector pin assignmentsMaintenance and Service Guide 9–3HDMI Pin Signal 1 Transition minimized differential signal (TDMS) data 2+ 2 Transition mini

9–4 Maintenance and Service GuideConnector pin assignmentsRJ-11 (modem)Pin Signal 1 Unused2 Tip3 Ring4 Unused5 Unused6 Unused

Connector pin assignmentsMaintenance and Service Guide 9–5RJ-45 (network)Pin Signal 1 Transmit + 2 Transmit 3 Receive + 4 Unused 5 Unused 6 Receive -

9–6 Maintenance and Service GuideConnector pin assignmentsUniversal Serial BusPin Signal 1 +5 VDC 2 Data -3 Data + 4 Ground

Maintenance and Service Guide 10–110Power cord set requirementsThe wide range input feature of the computer permits it to operate from any line voltag

2–2 Maintenance and Service GuideExternal component identificationTouchPadItem Component Function 1TouchPad* Moves the pointer and selects or activate

10–2 Maintenance and Service GuidePower cord set requirementsRequirements for specific countries and regionsCountry/region Accredited agency Accredit

Maintenance and Service Guide 11 – 111RecyclingBattery When a battery has reached the end of its useful life, do not dispose of the battery in general

11 – 2 Maintenance and Service GuideRecyclingPerform the following steps to disassemble the display assembly: 1. Remove all screw covers 1 and screws

RecyclingMaintenance and Service Guide 11 – 34. Disconnect all display panel cables 1 from the display inverter and remove the inverter 2. 5. Remove a

11 – 4 Maintenance and Service GuideRecycling9. Use a sharp-edged tool to cut the tape 1 that secures the sides of the display panel to the display pa

RecyclingMaintenance and Service Guide 11 – 516. Turn the display panel upside down. 17. Remove the backlight frame from the display panel. ÅWARNING:

11 – 6 Maintenance and Service GuideRecycling19. Disconnect the display panel cable 1 from the LCD panel. 20. Remove the screws 2 that secure the LCD

Maintenance and Service Guide Index–1IndexAAC adapter, spare part number 3–10, 3–11antennacomponents 1–3, 2–1disconnecting 4–13locations 2–1spare part

Index–2 Maintenance and Service GuideIndexDDiagnostics menu 5–4Digital Media Slot 2–7display assemblyremoval 4–24spare part number 3–3, 3–12, 4–24disp

IndexMaintenance and Service Guide Index–3Jjacksaudio-in 2–6audio-out 2–6headphone 2–6microphone 2–6modem 2–6network 2–6RJ-11 2–6RJ-45 2–6Kkey compone

External component identificationMaintenance and Service Guide 2–3Buttons Item Component Description 1Power button When the computer is off, press t

Index–4 Maintenance and Service GuideIndexplastic parts 4–1Plastics Kitcontents 3–8spare part number 3–3, 3–14portsexternal monitor 2–7HDMI 2–7product

IndexMaintenance and Service Guide Index–5DVD/CD-RW Combo Drive 6–3DVD±RW and CD-RW SuperMulti Double-Layer Drive 6–4DVD±RW and CD-RW SuperMulti Doubl

2–4 Maintenance and Service GuideExternal component identificationKeysItem Component Function 1esc key Displays system information when pressed in c

External component identificationMaintenance and Service Guide 2–5LightsItem Component Description1Caps lock light On: Caps lock is on. 2Battery light

2–6 Maintenance and Service GuideExternal component identificationFront componentsLeft-side componentsItem Component Description1Drive light Blinki

External component identificationMaintenance and Service Guide 2–7Right-side componentsItem Component Function 1ExpressCard slot (select models only)

2–8 Maintenance and Service GuideExternal component identificationBottom componentsItem Component Function 1Vents (3) Enables airflow to cool interna

Maintenance and Service Guide 3–13Illustrated parts catalogSerial number locationWhen ordering parts or requesting information, provide the computer s

© Copyright 2008 Hewlett-Packard Development Company, L.P.Bluetooth is a trademark owned by its proprietor and used by Hewlett-Packard Company under l

3–2 Maintenance and Service GuideIllustrated parts catalogComputer major components

Illustrated parts catalogMaintenance and Service Guide 3–3Item Description Spare Part Number(1) Display assembly (includes 2 WLAN antenna transceiver

3–4 Maintenance and Service GuideIllustrated parts catalog(12) Fan 493269-001(13) Processor (includes replacement thermal material) Intel Core2 Duo p

Illustrated parts catalogMaintenance and Service Guide 3–5(18) WLAN moduleBroadcom 802.11a/b/g/n WLAN module: For use in Afghanistan, Albania, Alge

3–6 Maintenance and Service GuideIllustrated parts catalog(19) Memory module2048-MB 493195-0011024-MB 493194-001(20) Hard drive (includes hard dri

Illustrated parts catalogMaintenance and Service Guide 3–7Cable KitItem Description Spare part number Cable Kit: 493275-0011 Bluetooth module cable

3–8 Maintenance and Service GuideIllustrated parts catalogPlastics KitItem Description Spare part number Plastics Kit: 506695-0011 Hard drive cover (

Illustrated parts catalogMaintenance and Service Guide 3–9Mass storage devicesItem Description Spare part number 1 Optical drive (includes bezel) DVD

3–10 Maintenance and Service GuideIllustrated parts catalogMiscellaneous partsDescription Spare part number 65-W AC adapter 463958-001Power cords: F

Illustrated parts catalogMaintenance and Service Guide 3–11Sequential part number listingSpare part number Description398393-002 Bluetooth module ✎The

Safety warning noticeÅWARNING: To reduce the possibility of heat-related injuries or of overheating the computer, do not place the computer directly o

3–12 Maintenance and Service GuideIllustrated parts catalog487330-002 Broadcom 802.11a/b/g/n WLAN module for use in Afghanistan, Albania, Algeria, And

Illustrated parts catalogMaintenance and Service Guide 3–13493196-001 Hard drive, 120-GB, 5400-rpm493197-001 Hard drive, 160-GB, 5400-rpm493198-001 Ha

3–14 Maintenance and Service GuideIllustrated parts catalog506306-001 Intel Core Duo processor (2-MB L2 cache, 800-MHz FSB) T5800 2.0-Ghz (includes re

Maintenance and Service Guide 4–14Removal and replacement proceduresPreliminary replacement requirements Tools required You will need the following to

4–2 Maintenance and Service GuideRemoval and replacement proceduresDrive handlingÄCAUTION: Drives are fragile components that must be handled with car

Removal and replacement proceduresMaintenance and Service Guide 4–3The following table shows how humidity affects the electrostatic voltage levels gen

4–4 Maintenance and Service GuideRemoval and replacement proceduresWorkstation guidelines Follow these grounding workstation guidelines: Cover the w

Removal and replacement proceduresMaintenance and Service Guide 4–5 Static-dissipative tables or floor mats with hard ties to the ground Field serv

4–6 Maintenance and Service GuideRemoval and replacement proceduresComponent replacement procedures This chapter provides removal and replacement proc

Removal and replacement proceduresMaintenance and Service Guide 4–7Computer feetThe computer feet are adhesive-backed rubber pads. The feet are includ

Maintenance and Service Guide ivContents1 Product description2 External component identificationTop components. . . . . . . . . . . . . . . . . . . .

4–8 Maintenance and Service GuideRemoval and replacement proceduresHard drive✎All hard drive spare part kits include a hard drive bracket. Before remo

Removal and replacement proceduresMaintenance and Service Guide 4–94. Loosen the Phillips PM2.5×10.0 captive screw 1 that secures the hard drive to th

4–10 Maintenance and Service GuideRemoval and replacement proceduresMemory moduleBefore removing the memory module, follow these steps: 1. Shut down t

Removal and replacement proceduresMaintenance and Service Guide 4–11✎The top memory module slot is for extension memory and the bottom slot is for pri

4–12 Maintenance and Service GuideRemoval and replacement proceduresWLAN moduleÄCAUTION: The WLAN module and the WWAN module are not interchangeable.D

Removal and replacement proceduresMaintenance and Service Guide 4–13Before removing the WLAN module, follow these steps: 1. Shut down the computer. If

4–14 Maintenance and Service GuideRemoval and replacement proceduresOptical drive✎All optical drive spare part kits include an optical drive bezel and

Removal and replacement proceduresMaintenance and Service Guide 4–155. If it is necessary to replace the optical drive bracket, follow these steps:a.

4–16 Maintenance and Service GuideRemoval and replacement proceduresKeyboardBefore removing the keyboard, follow these steps: 1. Shut down the compute

Removal and replacement proceduresMaintenance and Service Guide 4–173. Turn the computer display-side up, and open the computer. 4. Lift the rear edge

v Maintenance and Service GuideContentsFan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4–18 Maintenance and Service GuideRemoval and replacement proceduresTop coverBefore removing the top cover, follow these steps: 1. Shut down the compu

Removal and replacement proceduresMaintenance and Service Guide 4–19Remove the top cover: 1. Close the computer and turn it upside down, with the fron

4–20 Maintenance and Service GuideRemoval and replacement procedures4. Remove the three Phillips PM2.0×2.0BH screws in the battery bay.5. Remove the t

Removal and replacement proceduresMaintenance and Service Guide 4–216. Turn the computer right-side up, with the front toward you.7. Open the LED boar

4–22 Maintenance and Service GuideRemoval and replacement proceduresSpeaker assembly Before removing the speaker assembly, follow these steps: 1. Shut

Removal and replacement proceduresMaintenance and Service Guide 4–23Remove the speaker assembly: 1. Disconnect the speaker assembly cable 1 from the s

4–24 Maintenance and Service GuideRemoval and replacement proceduresDisplay assemblyBefore removing the display assembly, follow these steps: 1. Shut

Removal and replacement proceduresMaintenance and Service Guide 4–255. Remove the four Torx T8M2.0×6.0 screws 1 that secure the display assembly to th

4–26 Maintenance and Service GuideRemoval and replacement proceduresb. Remove the two PM2.0×5.0 screws 1 and two PM3.0×6.0 2 screws that secure the di

Removal and replacement proceduresMaintenance and Service Guide 4–272. To remove the webcam module:a. Disconnect the webcam cable 1 from the computer.

ContentsMaintenance and Service Guide vi8 Backup and recoveryCreating recovery discs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4–28 Maintenance and Service GuideRemoval and replacement procedures4. To remove the display panel:a. Remove the six Phillips PM2.0×5.0 screws 1 that

Removal and replacement proceduresMaintenance and Service Guide 4–295. To remove the microphone cable or WLAN transceivers and cable:✎The microphone,

4–30 Maintenance and Service GuideRemoval and replacement proceduresAudio boardBefore removing the audio board, follow these steps: 1. Shut down the c

Removal and replacement proceduresMaintenance and Service Guide 4–31Remove the audio board and cable: 1. Open the audio board cable ZIF connector 1, a

4–32 Maintenance and Service GuideRemoval and replacement proceduresFanBefore removing the fan, follow these steps: 1. Shut down the computer. If you

Removal and replacement proceduresMaintenance and Service Guide 4–33Remove the fan: 1. Disconnect the fan cable 1 from the system board. 2. Loosen the

4–34 Maintenance and Service GuideRemoval and replacement proceduresSystem board Before removing the system board, follow these steps: 1. Shut down th

Removal and replacement proceduresMaintenance and Service Guide 4–35Remove the system board: 1. Remove the Torx T8M2.0×6.0 screw that secures the syst

4–36 Maintenance and Service GuideRemoval and replacement proceduresRTC battery ✎Removing the RTC battery and leaving it uninstalled for 5 or more min

Removal and replacement proceduresMaintenance and Service Guide 4–37Remove the RTC battery: 1. Turn the system board upside down with the front toward

Maintenance and Service Guide 1–11Product descriptionCategory Description Models with GL40 system boardModels with GM45 system boardProduct Name Comp

4–38 Maintenance and Service GuideRemoval and replacement proceduresModem module Before removing the modem module, follow these steps: 1. Shut down th

Removal and replacement proceduresMaintenance and Service Guide 4–39Remove the modem module: 1. Turn the system board upside down with the rear edge t

4–40 Maintenance and Service GuideRemoval and replacement proceduresBluetooth module Before removing the Bluetooth module, follow these steps: 1. Shut

Removal and replacement proceduresMaintenance and Service Guide 4–41Remove the Bluetooth module: 1. Turn the system board upside down, with the front

4–42 Maintenance and Service GuideRemoval and replacement proceduresHeat sinkBefore removing the heat sink, follow these steps: 1. Shut down the compu

Removal and replacement proceduresMaintenance and Service Guide 4–43Remove the heat sink: 1. Loosen the four Phillips PM2.0×10.0 captive screws 1 that

4–44 Maintenance and Service GuideRemoval and replacement proceduresProcessor ✎All processor spare part kits include replacement thermal material. Des

Removal and replacement proceduresMaintenance and Service Guide 4–45Before removing the processor, follow these steps: 1. Shut down the computer. If y

4–46 Maintenance and Service GuideRemoval and replacement proceduresRemove the processor: 1. Use a flat-bladed screwdriver to turn the processor locki

Maintenance and Service Guide 5–15Setup UtilityThe Setup Utility is a ROM-based information and customization utility that can be used even when your

1–2 Maintenance and Service GuideProduct descriptionMemory 2 customer-accessible/upgradable memory module slots X XSupports dual-channel memory X XS

5–2 Maintenance and Service GuideSetup UtilityNavigating and selecting in the Setup Utility Because the Setup Utility is not Windows based, it does no

Setup UtilityMaintenance and Service Guide 5–3Exiting the Setup Utility You can exit the Setup Utility with or without saving changes. To exit the Se

5–4 Maintenance and Service GuideSetup UtilitySystem Configuration menu Diagnostics menu Select To do this Language Support Change the Setup Utility

Maintenance and Service Guide 6–16SpecificationsComputer specifications Metric U.S.DimensionsLength 22.6 cm 8.9 in Width 29.4 cm 11.7 in Height (f

6–2 Maintenance and Service GuideSpecifications12.1-inch, WXGA display specificationsHard drive specificationsMetric U.S. Dimensions Height 16.9 cm

SpecificationsMaintenance and Service Guide 6–3DVD/CD-RW Combo Drive specificationsBlu-ray ROM DVD±RW SuperMulti DL Drive specificationsApplicable dis

6–4 Maintenance and Service GuideSpecificationsDVD±RW and CD-RW SuperMulti Double-Layer Drive and DVD±RW and CD-RW SuperMulti Double-Layer Drive with

SpecificationsMaintenance and Service Guide 6–5System interrupt specificationsHardware IRQ System function IRQ0 System timer IRQ1 Standard 101-/102-Ke

6–6 Maintenance and Service GuideSpecificationsSystem I/O address specificationsI/O address (hex) System function (shipping configuration) 000 - 01F

SpecificationsMaintenance and Service Guide 6–70C0- 0DF Direct memory access controller0F0- 0F0 Numeric data processor0200-027F Motherboard resource3

Product descriptionMaintenance and Service Guide 1–3Ethernet Intel Broadcom 88E8072 10/100/1000 network interface card (NIC) XXEthernet cable include

6–8 Maintenance and Service GuideSpecificationsSystem memory map specificationsSize Memory address System function 640 KB 00000000-0009FFFF Base mem

Maintenance and Service Guide 7–17Screw listingThis section provides specification and reference information for the screws used in the computer. Some

7–2 Maintenance and Service GuideScrew listingPhillips PM1.5×3.0 screw Where used: 2 screws that secure the optical drive bracket to the optical drive

Screw listingMaintenance and Service Guide 7–3 Where used: 4 screws that secure the display hinges to the display panel Where used: 2 screws that secu

7–4 Maintenance and Service GuideScrew listingPhillips PM2.0×3.0 screw Where used: 2 screws that secure the audio board to the base enclosureColor Qu

Screw listingMaintenance and Service Guide 7–5Phillips PM2.0×4.0 screw Where used: 2 screws that secure the WLAN module to the system boardColor Quan

7–6 Maintenance and Service GuideScrew listingPhillips PM2.0×5.0 captive screw Where used: 4 captive screws 1 that secure the hard drive cover to the

Screw listingMaintenance and Service Guide 7–7Phillips PM2.0×3.0 screw Where used: 3 screws (in optical drive bay) that secure the top cover to the co

7–8 Maintenance and Service GuideScrew listingPhillips PM2.0×6.0 screw Where used: 2 screws that secure the display hinge covers to the display enclos

Screw listingMaintenance and Service Guide 7–9Phillips PM2.0×5.0 screw Where used: 6 screws that secure the display panel to the display enclosureWhe