HP Presario 7481 Technical Information

HP G70 Notebook PCCompaq Presario CQ70 Notebook PCMaintenance and Service GuideDocument Part Number: 485462-001September 2008This guide is a troublesh

1–4 Maintenance and Service GuideProduct descriptionKeyboard/TouchPad Full-size keyboard (17-inch with numerical key pad)XXX XTouchPad with 2 TouchPad

7–8 Maintenance and Service GuideScrew listingWhere used: 4 screws that secure the display assembly to the base enclosureWhere used: 6 screws that sec

Screw listingMaintenance and Service Guide 7–9Phillips PM2.5x7.0 screwWhere used: 3 screws that secure the top cover to the computerWhere used: 3 scre

7–10 Maintenance and Service GuideScrew listingWhere used: 2 screws that secure the display panel to the display enclosureWhere used: 2 screws that se

Screw listingMaintenance and Service Guide 7–11Phillips PM2.0x4.0 screwWhere used: 2 screws that secure the optical drive bracket to the optical drive

7–12 Maintenance and Service GuideScrew listingWhere used: 8 screws that secure the display panel brackets to the display panelWhere used:1 Six screws

Screw listingMaintenance and Service Guide 7–13Where used: 2 screws that secure the TouchPad board to the TouchPad board bracketWhere used: 1 screw th

7–14 Maintenance and Service GuideScrew listingPhillips PM2.0x3.0 screwWhere used: 2 screws in the battery bay that secure the keyboard cover to the c

Screw listingMaintenance and Service Guide 7–15Phillips PM3.0x4.0 screwWhere used: 4 screws that secure the hard drive bracket to the hard driveColor

7–16 Maintenance and Service GuideScrew listingPhillips PM2.0x10.0 captive screwWhere used: 4 captive screws that secure the fan/heatsink to the syste

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 1Internal display switch

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 ou

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

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

9–4 Maintenance and Service GuideConnector pin assignmentsRJ-11 (modem)RJ-45 (network)Pin Signal1 Unused2 Tip3 Ring4 Unused5 Unused6 UnusedPin Signal

Connector pin assignmentsMaintenance and Service Guide 9–5Universal Serial BusPin Signal 1 +5 VDC 2 Data -3 Data + 4 Ground Downloaded from LpManual.c

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

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

2–2 Maintenance and Service GuideExternal component identificationLightsItem Component Description1Power lights* (2) On: The computer is on. Blinki

Maintenance and Service Guide 11 – 111RecyclingBatteryWhen 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 2

RecyclingMaintenance and Service Guide 11 – 34. Disconnect all display panel cables 1 from the display inverter and remove the inverter 2.5. Remove al

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: Th

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

Maintenance and Service Guide Index–1IndexAAC adapter light 2–7AC adaptersproduct description 1–4spare part numbers 3–12antennacomponents 2–1disconnec

Index–2 Maintenance and Service GuideIndexdisplay bezel 3–9removal 4–21, 4–22spare part number 3–9, 3–16display component recycling 11–1display hinges

IndexMaintenance and Service Guide Index–3keypad keys 2–4keysesc 2–4fn 2–4function 2–4keypad 2–4Windows applications 2–4Windows logo 2–4LLAN Power Sav

Index–4 Maintenance and Service GuideIndexPower connector cableproduct description 3–4spare part number 3–4power cordset requirements 10–1spare part n

External component identificationMaintenance and Service Guide 2–3Buttons and speakersItem Component Description 1Speakers (2) Produce sound.2Power bu

IndexMaintenance and Service Guide Index–5system memory map 6–8system recovery points 8–3Tthermal material 4–40tools required 4–1top components 2–1top

2–4 Maintenance and Service GuideExternal component identificationKeysItem Component Description 1esc key Displays system information about your compu

External component identificationMaintenance and Service Guide 2–5TouchPadItem Component Function 1TouchPad light White: TouchPad is enabled. Amber

2–6 Maintenance and Service GuideExternal component identificationFront componentsRear componentsItem Component Description1Power light On: The comp

External component identificationMaintenance and Service Guide 2–7Left-side componentsItem Component Function 1 Power connector Connects an AC adapt

2–8 Maintenance and Service GuideExternal component identificationRight-side componentsItem Component Function 1 Optical drive Reads optical discs an

External component identificationMaintenance and Service Guide 2–9Bottom componentsItem Component Function 1 Battery bay Holds the battery.2 Battery

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

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

3–2 Maintenance and Service GuideIllustrated parts catalogComputer major componentsDownloaded from LpManual.com Manuals

Illustrated parts catalogMaintenance and Service Guide 3–3Item Description Spare Part Number(1) 17-inch WXGA BrightView display assemblies (includes w

3–4 Maintenance and Service GuideIllustrated parts catalog(11) System boardsUMA system board, GM45 (includes built-in modem, Digital Media Slot, HDMI

Illustrated parts catalogMaintenance and Service Guide 3–5(20) Bluetooth® module (does not include Bluetooth cable) 483113-001Bluetooth cable (not ill

3–6 Maintenance and Service GuideIllustrated parts catalog For use in Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina,

Illustrated parts catalogMaintenance and Service Guide 3–7Broadcom BCM4312 802.11b/g WLAN modules: For use in Canada, the Cayman Islands, Guam, Puert

3–8 Maintenance and Service GuideIllustrated parts catalog(25) Optical drives (include optical drive bezel and bracket)DVD±RW and CD-RW SuperMulti Dou

Illustrated parts catalogMaintenance and Service Guide 3–9Display assembly componentsItem Description Spare Part Number(1) Display bezelsFor use only

3–10 Maintenance and Service GuideIllustrated parts catalogPlastics KitItem Description Spare part number Plastics Kit: 489112-0011 WLAN module comp

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

Illustrated parts catalogMaintenance and Service Guide 3–11Mass storage devicesItem Description Spare part number 1 Hard drives (include connector an

3–12 Maintenance and Service GuideIllustrated parts catalogMiscellaneous partsDescription Spare part number AC adapters:65-W AC adapter 463958-00190-

Illustrated parts catalogMaintenance and Service Guide 3–13Sequential part number listingSerial part number Description number 459263-001 Broadcom BCM

3–14 Maintenance and Service GuideIllustrated parts catalog480985-001 Intel Wi-Fi Link 5100 802.11 a/b/g/n for use in Afghanistan, Albania, Algeria, A

Illustrated parts catalogMaintenance and Service Guide 3–15485033-003 2048-MB memory module (PC2-6400, 667-MHz, DDR2)485034-003 120-GB, 5400-rpm hard

3–16 Maintenance and Service GuideIllustrated parts catalog486637-001 Power connector cable488338-001 System board, discrete, PM45 (with built-in mode

Illustrated parts catalogMaintenance and Service Guide 3–17490371-AB1 Power cord for use in Taiwan490371-AD1 Power cord for use in South Korea490371-A

Maintenance and Service Guide 4–14Removal and replacement proceduresPreliminary replacement requirementsTools requiredYou will need the following tool

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

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

4–4 Maintenance and Service GuideRemoval and replacement proceduresEquipment guidelinesGrounding equipment must include either a wrist strap or a foot

Removal and replacement proceduresMaintenance and Service Guide 4–57. Replace the RTC battery and reassemble the computer. 8. Connect AC power to the

4–6 Maintenance and Service GuideRemoval and replacement proceduresComputer feetThe computer feet are adhesive-backed rubber pads. The feet attach to

Removal and replacement proceduresMaintenance and Service Guide 4–7Remove the battery: 1. Turn the computer upside down on a flat surface, with the ba

4–8 Maintenance and Service GuideRemoval and replacement proceduresRemove the optical drive: 1. Position the computer with the left side toward you.2.

Removal and replacement proceduresMaintenance and Service Guide 4–9Hard drive✎All hard drive spare part kits include a hard drive bracket and hard dri

4–10 Maintenance and Service GuideRemoval and replacement procedures3. Remove the three Phillips PM2.0×4.5 screws 1 that secure the hard drive to the

Removal and replacement proceduresMaintenance and Service Guide 4–11RTC battery✎Removing the RTC battery and leaving it uninstalled for 5 or more minu

4–12 Maintenance and Service GuideRemoval and replacement proceduresMemory moduleBefore removing the memory module, follow these steps:1. Shut down th

Removal and replacement proceduresMaintenance and Service Guide 4–133. Spread the retaining tabs 1 on each side of the memory module slot to release t

v Maintenance and Service GuideContentsDisplay assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4–14 Maintenance and Service GuideRemoval and replacement proceduresRemove the WLAN module: 1. Remove the WLAN module cover:a. Loosen the Phillips PM2

Removal and replacement proceduresMaintenance and Service Guide 4–15KeyboardBefore removing the keyboard, follow these steps: 1. Shut down the compute

4–16 Maintenance and Service GuideRemoval and replacement procedures3. Turn the computer display-side up, with the front toward you.4. Open the comput

Removal and replacement proceduresMaintenance and Service Guide 4–17Keyboard coverBefore removing the keyboard cover, follow these steps: 1. Shut down

4–18 Maintenance and Service GuideRemoval and replacement procedures2. Turn the computer display-side up, with the front toward you.3. Open the comput

Removal and replacement proceduresMaintenance and Service Guide 4–19Power button boardBefore removing the display assembly, follow these steps: 1. Shu

4–20 Maintenance and Service GuideRemoval and replacement proceduresDisplay assemblyBefore removing the display assembly, follow these steps: 1. Shut

Removal and replacement proceduresMaintenance and Service Guide 4–215. Remove the four Phillips PM2.0x9.0 screws 1 securing the display hinges to the

4–22 Maintenance and Service GuideRemoval and replacement procedures8. Flex the inside edges of the left and right sides 1 and the top and bottom side

Removal and replacement proceduresMaintenance and Service Guide 4–2312. If it is necessary to replace the display inverter, release the display invert

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

4–24 Maintenance and Service GuideRemoval and replacement procedures16. If it is necessary to replace the display panel, remove the two Phillips PM2.0

Removal and replacement proceduresMaintenance and Service Guide 4–2520. If it is necessary to replace the display panel cable, which is attached to th

4–26 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 4–275. Release the ZIF connector to which the TouchPad cable is attached, and disconne

4–28 Maintenance and Service GuideRemoval and replacement proceduresTouchPad on/off button board and board bracketBefore removing the TouchPad on/off

Removal and replacement proceduresMaintenance and Service Guide 4–29Remove the TouchPad on/off button board and board bracket:1. Turn the top cover up

4–30 Maintenance and Service GuideRemoval and replacement procedures7. Remove the two Phillips PM1.5x3.0 screws 1 that secure the switch actuator to t

Removal and replacement proceduresMaintenance and Service Guide 4–31Audio boardBefore removing the audio board, follow these steps:1. Shut down the co

4–32 Maintenance and Service GuideRemoval and replacement proceduresBluetooth moduleBefore removing the Bluetooth module, follow these steps:1. Shut d

Removal and replacement proceduresMaintenance and Service Guide 4–33SpeakersBefore removing the speakers, follow these steps:1. Shut down the computer

Maintenance and Service Guide 1–11Product descriptionCategory Description Presario CQ70 UMAPresario CQ70 DiscreteHP G70 UMAHP G70 DiscreteProduct name

4–34 Maintenance and Service GuideRemoval and replacement proceduresUSB boardBefore removing the USB board, follow these steps:1. Shut down the comput

Removal and replacement proceduresMaintenance and Service Guide 4–35System board✎All system board spare part kits include UMA or discrete graphics sub

4–36 Maintenance and Service GuideRemoval and replacement proceduresRemove the system board: 1. Disconnect the USB board cable 1 from its mounting cli

Removal and replacement proceduresMaintenance and Service Guide 4–377. Release the power cable from the base enclosure 1.8. Use the optical drive conn

4–38 Maintenance and Service GuideRemoval and replacement proceduresModem module cableBefore removing the modem module cable, follow these steps:1. Sh

Removal and replacement proceduresMaintenance and Service Guide 4–39Fan/heatsink assemblyBefore removing the fan, follow these steps: 1. Shut down the

4–40 Maintenance and Service GuideRemoval and replacement procedures✎Due to the adhesive quality of the thermal material located between the fan/heat

Removal and replacement proceduresMaintenance and Service Guide 4–41✎The fan/heatsink assembly mounting bracket must be replaced as shown in the follo

4–42 Maintenance and Service GuideRemoval and replacement proceduresProcessor✎All processor spare part kits include replacement thermal material.Befor

Removal and replacement proceduresMaintenance and Service Guide 4–43Remove the processor: 1. Use a flat-bladed screwdriver to turn the processor locki

1–2 Maintenance and Service GuideProduct descriptionGraphics Intel Graphics Media Accelerator 4500MHD (Shared) X XUMA (integrated) with shared video m

4–44 Maintenance and Service GuideRemoval and replacement proceduresPower connector cableBefore removing the power connector cable, follow these steps

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

5–2 Maintenance and Service GuideSetup UtilityNavigating and selecting in the Setup UtilityBecause the Setup Utility is not Windows based, it does not

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

5–4 Maintenance and Service GuideSetup UtilitySystem Configuration menuDiagnostics menuSelect To do this Language Support Change the Setup Utility l

Maintenance and Service Guide 6–16SpecificationsComputer specifications Metric U.S.DimensionsWidth 39.6 cm 15.59 in Depth 28.4 cm 11.18 in Height (fro

6–2 Maintenance and Service GuideSpecifications17-inch WXGA display specificationsMetric U.S. Dimensions Height 24.4 cm 9.6 inWidth 38.1 cm 15.0 inDia

SpecificationsMaintenance and Service Guide 6–3Hard drive specifications320-GB 250-GB* 200-GB 160-GB* 120-GB*Dimensions Height 9.5 mm 9.5 mm 9.5 mm 9

6–4 Maintenance and Service GuideSpecificationsDVD±RW and CD-RW SuperMulti Double-Layer Combo Drive specificationsApplicable disc Read: Write: CD-DA

SpecificationsMaintenance and Service Guide 6–5DVD±RW and CD-RW SuperMulti Double-Layer Combo Drive with LightScribe specificationsBlu-ray ROM DVD±RW

Product descriptionMaintenance and Service Guide 1–3Optical drives 12.7mm tray load - SATA - Fixed X X X XDVD±RW and CD-RW SuperMulti Double-Layer Com

6–6 Maintenance and Service GuideSpecificationsSystem DMA specificationsSystem interrupt specificationsHardware DMA System function DMA0 Not applicabl

SpecificationsMaintenance and Service Guide 6–7System I/O address specificationsI/O address (hex) System function (shipping configuration) 000 - 00F

6–8 Maintenance and Service GuideSpecificationsSystem memory map specifications278 - 27F Unused 280 - 2AB Unused 2A0 - 2A7 Unused 2A8 - 2E7 Unused

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

7–2 Maintenance and Service GuideScrew listingWhere used: 2 screws that secure the optical drive connector to the base enclosureWhere used: 2 screws t

Screw listingMaintenance and Service Guide 7–3Where used: 3 screws that secure the hard drive to the computerWhere used: 2 screws that secure the WLAN

7–4 Maintenance and Service GuideScrew listingPhillips PM2.0x6.0 screwWhere used: 2 screws that secure the audio board to the base enclosureWhere used

Screw listingMaintenance and Service Guide 7–5Phillips PM2.5x6.0 captive screwWhere used:1 Two screws that secure the hard drive cover to the computer

7–6 Maintenance and Service GuideScrew listingPhillips PM2.5x6.0 screwWhere used: 1 screw that secures the top cover to the computerColor Quantity Len

Screw listingMaintenance and Service Guide 7–7Phillips PM2.5x9.0 screwWhere used: 2 screws that secure the keyboard cover to the computerColor Quantit