Compaq Presario CQ42-300 - Notebook PC Technical Information

Compaq Presario CQ42 Notebook PCand HP G42 Notebook PCMaintenance and Service GuideSUMMARYThis guide is a troubleshooting reference used for maintaini

Requirements for specific countries or regions ... 11510 Recycling ...

Computer Setup in LinuxStarting Computer SetupComputer Setup is a preinstalled, ROM-based utility that can be used even when the operatingsystem is no

Restoring factory settings in Computer SetupTo return all settings in Computer Setup to the values that were set at the factory, follow these steps:1.

Computer Setup menusThe menu tables in this section provide an overview of Computer Setup options.NOTE: Some of the Computer Setup menu items listed i

Security menuNOTE: Some of the menu items listed in this section may not be supported by your computer.Select To do thisSetup Password Enter, change,

System Configuration menuNOTE: Some of the listed System Configuration options may not be supported by your computer.Select To do thisLanguage Change

Select To do thisBuilt-in device options●Enable/disable embedded WLAN Device Radio.●Enable/disable embedded Bluetooth Device Radio.●Enable/disable Net

6 SpecificationsComputer specificationsDimensionsDepth 22.8 cm (8.98 in)Width 34.2 cm (13.46 in)Height (front to rear) 31.5 to 36.5 cm (1.24 to 1.44 i

35.6-cm (14.0-in) display specificationsDimensionsHeight 17.6 cm (17.6 cm)Width 31.1 cm (12.24 in)Diagonal 35.7 cm (14.06 in)Number of colors Up to 16

Hard drive specifications 500-GB* 320-GB* 250-GB* 160-GB*DimensionsHeight 9.5 mm 9.5 mm 9.5 mm 9.5 mmWidth 70 mm 70 mm 70 mm 70 mmWeight 101 g 101 g 1

DVD±RW SuperMulti Double-Layer Drive with LightScribespecificationsApplicable disc Read CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXEDMOD

1 Product descriptionCategory Description HP G42 CompaqPresarioCQ42CompaqPresarioCQ42CompaqPresarioCQ42UMA Discrete UMA Models150 – 199UMA Models100 –

Blu-ray ROM with LightScribe DVD±R/RW SuperMulti DLDrive specificationsApplicable disc Read BD-ROM, BD-ROM-DL, BD-R, BD-R-DL, BD-RE, BD-RE-DL, DVD-RO

System resource specificationsYou can use Device Manager to get a graphical view of the system resources that control how thedevices work on the compu

7 Backup and recoveryRecovery after a system failure is as complete as your most current backup. HP recommends thatyou create recovery discs immediate

Depending on your computer model, you may have one of the following backup and recoverysolutions:●Roxio BackOnTrack●HP Recovery ManagerNOTE: For detai

Backing up your informationAs you add new software and data files, you should back up your system on a regular basis tomaintain a reasonably current b

Using Windows Backup and RestoreTo create a backup using Windows Backup and Restore, follow these steps:NOTE: Be sure that the computer is connected t

Using system restore pointsWhen you back up your system, you are creating a system restore point. A system restore pointallows you to save and name a

(SSD), you may not have a recovery partition. If that is the case, recovery discs have been includedwith your computer. Use these discs to recover you

Linux backup and recoveryUse the instructions in this section if SUSE Linux SLED 11 is installed on your computer.To protect your information, back up

8 Connector pin assignmentsAudio-out (headphone)Pin Signal1 Audio out, left channel2 Audio out, right channel3 GroundAudio-in (microphone)Pin Signal1

Category Description HP G42 CompaqPresarioCQ42CompaqPresarioCQ42CompaqPresarioCQ42UMA Discrete UMA Models150 – 199UMA Models100 – 149 N620 DDR3-1333

External monitorPin Signal1 Red analog2 Green analog3 Blue analog4 Not connected5 Ground6 Ground analog7 Ground analog8 Ground analog9+5 VDC10 Ground1

RJ-11 (modem)Pin Signal1 Unused2Tip3Ring4 Unused5 Unused6 UnusedRJ-45 (network)Pin Signal1 Transmit +2 Transmit -3Receive +4 Unused5 Unused6Receive -7

HDMIPin Signal1 TMDS data 2+2 TMDS data 2 shield3 TMDS data 2–4 TMDS data 1+5 TMDS data 1shield6 TMDS data 1–7 TMDS data 0+8 TMDS data 0 shield9 TMDS

Universal Serial BusPin Signal1+5 VDC2 Data -3 Data +4 GroundUniversal Serial Bus 113

9 Power cord set requirementsThe wide range input feature of the computer permits it to operate from any line voltage from 100 to120 volts AC or from

Requirements for specific countries or regionsCountry/region Accredited agency Applicable note numberAustralia EANSW 1Austria OVE 1Belgium CEBC 1Canad

10 RecyclingBatteryWhen a battery has reached the end of its useful life, do not dispose of the battery in generalhousehold waste. Follow the local la

Perform the following steps to disassemble the display assembly:1. Remove all screw covers (1) and screws (2) that secure the display bezel to the dis

4. Disconnect all display panel cables (1) from the display inverter and remove the inverter (2).5. Remove all screws (1) that secure the display pane

10. Remove the display panel frame (2) from the display panel.11. Remove the screws (1) that secure the backlight cover to the display panel.12. Lift

Category Description HP G42 CompaqPresarioCQ42CompaqPresarioCQ42CompaqPresarioCQ42UMA Discrete UMA Models150 – 199UMA Models100 – 149 Intel UMA (inte

15. Remove the backlight cables (1) from the clip (2) in the display panel.16. Turn the display panel upside-down.WARNING! The backlight contains merc

18. Remove the backlight from the backlight frame.19. Disconnect the display panel cable (1) from the LCD panel.20. Remove the screws (2) that secure

IndexSymbols/Numerics1394 Power Saving 89AAC adapteridentifying 18AC adapter, spare partnumbers 30administrator password 88antennaremoval 70antennas 1

diskette driveprecautions 37product description 4display assemblyremoval 66spare part number 20, 66display back coverspare part number 27display bezel

microphone (internal),identifying 13microphone jack, pinassignments 109microphone, productdescription 4mini-card compartment coverillustrated 28remova

setup utilityDiagnostics menu 93File menu 92navigating and selecting 90restoring factory settings 91Security menu 93System Configurationmenu 94slotsDi

Category Description HP G42 CompaqPresarioCQ42CompaqPresarioCQ42CompaqPresarioCQ42UMA Discrete UMA Models150 – 199UMA Models100 – 149 ●4096 MB (2048 M

Category Description HP G42 CompaqPresarioCQ42CompaqPresarioCQ42CompaqPresarioCQ42UMA Discrete UMA Models150 – 199UMA Models100 – 149 Supports Micros

Category Description HP G42 CompaqPresarioCQ42CompaqPresarioCQ42CompaqPresarioCQ42UMA Discrete UMA Models150 – 199UMA Models100 – 149 HDMI v1.3 suppo

Category Description HP G42 CompaqPresarioCQ42CompaqPresarioCQ42CompaqPresarioCQ42UMA Discrete UMA Models150 – 199UMA Models100 – 149 Optical drive √√

2 External component identificationIdentifying the hardwareComponents included with the computer may vary by region and model. The illustrations in th

Top componentsTouchPadComponent Description(1)TouchPad off indicator To switch the TouchPad zone on and off, quickly double-tapthe TouchPad off indica

© Copyright 2010 Hewlett-PackardDevelopment Company, L.P.Bluetooth is a trademark owned by itsproprietor and used by Hewlett-PackardCompany under lice

LightsComponent Description(1) TouchPad light●On: The TouchPad is disabled.●Off: The TouchPad is enabled.(2) Caps lock light On: Caps lock is on.(3

Button and speakersComponent Description(1) Speakers (2) Produce sound.(2) Power button●When the computer is off, press the button to turn on theco

KeysComponent Description(1) esc key Displays system information when pressed in combination withthe fn key.(2) fn key Displays system information

DisplayComponent Description(1) Internal microphone Records sound.(2) Integrated webcam (select models only) Records audio and video and captures stil

Right-side componentsComponent Description(1) Optical drive Reads and writes to optical discs.(2) Optical drive light Blinking: The optical drive

Left-side componentsComponent Description(1)External monitor port Connects an external VGA monitor or projector.(2) Vent Enables airflow to cool int

Bottom componentsComponent Description(1) Battery bay Holds the battery.(2)Battery release latch Releases the battery from the battery bay.(3) Ven

Wireless antennasAt least 2 antennas send and receive signals from one or more wireless devices. These antennas arenot visible from the outside of the

Additional hardware componentsComponent Description(1) Power cord* Connects an AC adapter to an AC outlet.(2) AC adapter Converts AC power to DC power

3 Illustrated parts catalogSerial number locationWhen ordering parts or requesting information, provide the computer serial number and modelnumber loc

Safety warning noticeWARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do notplace the computer directly on

Computer major componentsItem Description Spare part number(1) 35.6 cm (14-in), WXGA, BrightView display assemblyNOTE: See Display assembly components

Item Description Spare part number ●For use with integrated microphone and webcam; Presario, biscotti 597617-001 ●For use with integrated microphone a

Item Description Spare part number ●For use in models with HD545V DSC CR (for model 1.0 only) 611555-001 ●For use in models with HD5470/512 MB DSC (fo

Item Description Spare part number ●Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentian,Armenia, Australia, Austria, Azerba

Item Description Spare part number ●Advanced Micro Devices (AMD) processor DC N330 2.3GHz 1M L2 35W (for model1.0 only)594164-001 ●Advanced Micro Devi

Item Description Spare part number ●6-cell 47-WH (2.2-Ah) LI-ion 593553-001 ●6-cell 55-WH (2.55-Ah) LI-ion 593554-001(21) Hard drive (include hard dri

Display assembly componentsItem Description Spare part number(1) Display bezel ●HP, for use with microphone and webcam 592147-001 ●Presario, for use

Item Description Spare part number (4) Webcam cable (5) Antennas and cables (6) Display back cover ●Presario, matte black 592149-001 ●Presario,

Plastics KitItem Description Spare part number Plastics kit 600190-001(1) Hard drive bay cover (includes captive screws) (2) Wireless/memory module

Mass storage devicesItem Description Spare part number(1) Hard drive (include hard drive bracket) ●640–GB 5400 RPM 603785-001 ●500-GB 7200 RPM 600170-

iv Safety warning notice

Miscellaneous partsDescription Spare part numberAC adapters●90-W Smart AC adapter with power factor correction (PFC) 613152-001●90-W AC adapter with p

Sequential part number listingSpare partnumberDescription490371-001 Power cord, AC, 3-pin, black, 1.83-m, for use in North America490371-011 Power cor

Spare partnumberDescription592146-001 35.6 cm (14-in) WXGA Brightview display assembly for use with integrated microphone and webcam;Presario, matte b

Spare partnumberDescription600164-001 Display back cover, Presario, biscotti600165-001 Display back cover, HP, biscotti600166-001 Webcam module600167-

Spare partnumberDescription606156–001 35.6 cm (14-in) WXGA Brightview display assembly for use with integrated microphone and webcam;HP, white (for mo

Spare partnumberDescription616405–001 System board for use in models with discrete graphics subsystem HD5470/512 MB616406–001 System board for use in

4 Removal and replacement proceduresPreliminary replacement requirementsTools requiredYou will need the following tools to complete the removal and re

Cables and connectorsCAUTION: When servicing the computer, be sure that cables are placed in their proper locationsduring the reassembly process. Impr

Grounding guidelinesElectrostatic discharge damageElectronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure

Packaging and transporting guidelinesFollow these grounding guidelines when packaging and transporting equipment:●To avoid hand contact, transport pro

MSG revision historyRevision Publication date DescriptionA April 2010 Edited this guide to include HP G42 Notebook PC and Compaq CQ42Notebook PC infor

Equipment guidelinesGrounding equipment must include either a wrist strap or a foot strap at a grounded workstation.●When seated, wear a wrist strap c

Component replacement proceduresThis chapter provides removal and replacement procedures.There are as many as 75 screws, in 12 different sizes, that m

Computer feetDescription Spare part numberRubber Feet Kit 600184-001The computer feet are adhesive-backed rubber pads. The feet attach to the base enc

BatteryDescription Spare part number6-cell 55-WH (2.55Ah) LI-ion 593554-0016-cell 47-WH (2.2-Ah) LI-ion 593553-001Before disassembling the computer, f

Hard driveNOTE: All hard drive spare part kits include a hard drive bracket.Description Spare part number640-GB 5400 RPM 603785-001500-GB 7200 RPM 600

3. Lift the left side of the hard drive cover (2), swing it forward, and remove the cover (3). The harddrive cover is included in the plastics kit, sp

6. Disconnect the hard drive cable from the system board.7. Remove the hard drive.8. If it is necessary to replace the hard drive bracket, remove the

Optical driveDescription Spare partnumberDVD±RW SuperMulti DL Drive with LightScribe, matte black 600171-001DVD±RW SuperMulti DL Drive with LightScrib

4. Remove the optical drive (3).5. If it is necessary to replace the optical drive bracket, position the optical drive with the opticaldrive bracket t

WLAN moduleDescription Spare partnumberAtheros AR9285 802.11 a/b/g/n 2x2 WiFi adapter for use in Canada, the Cayman Islands, Guam,Puerto Rico, the Uni

vi MSG revision history

2. Loosen the 2 Phillips PM2.5×5.0 captive screws (1) that secure the mini-card compartmentcover.3. Lift the cover off the computer (2). The mini-card

Memory moduleDescription Spare part number2–GB, PC3 10600, 1333-MHz 598856-0011-GB, PC3 10600, 1333-MHz 598859-0014-GB, PC3 10600, 1333-MHz (for model

3. Lift cover off the computer. The mini-card compartment cover is included in the plastics kit, sparepart number 600190-001.NOTE: Small tabs hold the

KeyboardDescription Spare part numberKeyboard for use in Brazil 600175-201Keyboard for use in English and French Canada 600175-121Keyboard for use in

5. Release the top edge of the keyboard by lifting it up to disengage the keyboard from the tabs onthe top cover (1).6. Slide the top edge of the keyb

Top coverDescription Spare part numberTop cover (includes Touchpad and bracket, button board, and cable), matte black 600181-001Top cover, bicotti 600

3. Remove the five Phillips PM2.5×6.5 screws (2), the two Phillips PM2.5x4.0 screws (3), and thefour Phillips PM2.5x3.0 screws (4) that secure the top

9. Release the ZIF connector to which the power button board cable (4) is connector anddisconnect the cable from the system board.10. Remove the Phill

Speaker assemblyDescription Spare part numberSpeaker assembly 600189-001Before removing the speaker assembly, follow these steps:1. Shut down the comp

Power button boardDescription Spare part numberPower button board (with cable) 600188-001Before removing the power button board, follow these steps:1.

Table of contents1 Product description ...

TouchPad button boardDescription Spare part numberTouchPad button board 604603-001Before removing the TouchPad button board, follow these steps:1. Shu

Modem moduleDescription Spare part numberHigh-speed 56K modem for use in all countries and regions except Australia and New Zealand(for model 1.0 only

4. Lift up on the front of the modem module (3) to disconnect it from the system board.5. Remove the modem module.Reverse the above procedure to insta

Bluetooth moduleDescription Spare part numberBluetooth module 537921-001Bluetooth module cable 602822-001Before removing the Bluetooth module, follow

USB boardDescription Spare part numberUSB board (includes cable) 600631-001Before removing the USB board, follow these steps:1. Shut down the computer

Power connector cableDescription Spare part numberPower connector cable (includes cable and connector) 600630-001Before removing the power connector c

Display assemblyDescription Spare part number35.6 cm (14-in) WXGA Brightview display assembly for use with integrated microphone andwebcam; Presario,

6. Disconnect the webcam cable (2) from the system board.CAUTION: Support the display assembly when removing the display screws in the followingsteps.

9. If it is necessary to replace any of the display assembly internal components, remove thefollowing screw covers and screws. The display screw cover

12. If it is necessary to replace the webcam module, disconnect the webcam cable (1) from themodule. Lift the webcam from the double-sided tape on the

Electrostatic discharge damage ... 38Packaging and transporting guidelines ...

The display cable is available in the display cable kit, spare part number 592151-001.15. If it is necessary to replace the display bracket and hinges

20. Remove the wireless antennas and cables (4) from the display enclosure. The wirelessantennas and cables are included in the display cable kit, spa

22. If it is necessary to remove the microphone, release the microphone cable from the adhesivestrips (1) along the cable path on the display back cov

System boardDescription Spare part numberSystem board for use in models with UMA graphics subsystem memory, 592808-001System board for use in models w

f. Speaker assembly (see Speaker assembly on page 58)g. Display assembly (see Display assembly on page 66)h. Top cover (see Top cover on page 55)Remov

5. Release the system board by sliding it to the right at an angle (3) until the connectors on the leftside of the system board clear the base enclosu

Optical drive SATA cable and connectorDescription Spare part numberOptical drive cable (included in the cable kit) 610791-001Before removing the optic

2. Release the cable from the clips on the base enclosure (2), and then remove the cable (3).Component replacement procedures 77

RTC batteryDescription Spare part numberRTC battery 602745-001Before removing the RTC battery, follow these steps:1. Shut down the computer. If you ar

3. Remove the RTC battery (2).Reverse this procedure to install the RTC battery.Component replacement procedures 79

Starting Computer Setup ... 90Using Computer Setup ...

Fan/heat sink assemblyDescription Spare part numberFan/heat sink assembly for use in models that use Universal Memory Architecture (UMA) graphicssubsy

NOTE: Due to the adhesive quality of the thermal material located between the fan/heat sinkassembly and system board components, it may be necessary t

The thermal material must be thoroughly cleaned from the surface of the fan/heat sink assembly (1)and (3), and the processor component (2), each time

ProcessorNOTE: All processor spare part kits include thermal material.Description Spare part numberProcessor Advanced Micro Devices (AMD) DC P340 2.2G

d. Top cover (see Top cover on page 55)e. Speaker assembly (see Speaker assembly on page 58)f. Display assembly (see Display assembly on page 66)g. Sy

5 Setup UtilityComputer Setup in Windows 7To view the drives installed on the computer, select Start > Computer.On models with a secondary hard dri

3. Use the arrow keys to select a language, and then press enter.4. When a confirmation prompt with your language selected is displayed, press enter.5

Restoring default settings in Setup UtilityThe following procedure explains how to restore Setup Utility default settings. If Setup Utility is notalre

Exiting Setup UtilityYou can exit Setup Utility with or without saving changes.●To exit Setup Utility and save your changes from the current session:I

System Configuration menuSelect To do thisLanguage Support Change the language of Setup Utility.Button Sound (select models only) Enable/disable the c