HP Compaq 6820s Notebook PCMaintenance and Service Guide
Performing a recovery from the hard drive ... 120Initiating a recovery in Windows .
7 Screw listingThis section provides specification and reference information for the screws and screw locks used inthe computer. All screws listed in
Phillips PM2.0×5.0 captive screwColor Quantity Length Thread Head diameterBlack 4 5.0 mm 2.0 mm 5.0 mmWhere used:(1) Two captive screws that secure th
Phillips PM2.5×13.0 captive screwColor Quantity Length Thread Head diameterSilver 1 13.0 mm 2.5 mm 5.0 mmWhere used: One captive screw that secures th
Phillips PM3.0×4.0 screwColor Quantity Length Thread Head diameterSilver 4 4.0 mm 3.0 mm 5.0 mmWhere used: 4 screws that secure the hard drive bracket
Phillips PM2.5×4.0 screwColor Quantity Length Thread Head diameterBlack 4 4.0 mm 2.5 mm 5.0 mmWhere used: 2 screws that secure the WLAN module to the
Torx T8M2.5×7.0 screwColor Quantity Length Thread Head diameterBlack 23 7.0 mm 2.5 mm 5.0 mmWhere used:(1) One screw that secures the optical drive to
Where used: 4 screws that secure the display assembly to the computerWhere used: 10 screws that secure the top cover to the base enclosureWhere used:
Phillips PM2.0×4.0 screwColor Quantity Length Thread Head diameterSilver 14 4.0 mm 2.0 mm 4.5 mmWhere used: 2 screws that secure the optical drive bra
Where used: 8 screws that secure the display hinges to the display assemblyWhere used: 2 screws that secure the TouchPad Bracket and TouchPad button b
Torx T8M2.5×9.0 screwColor Quantity Length Thread Head diameterBlack 2 9.0 mm 2.5 mm 5.0 mmWhere used: 2 screws that secure the switch cover to the co
1 Product descriptionCategory DescriptionProduct Name HP Compaq 6820s Notebook PCProcessors Intel® Core™ 2 Duo processors ●T9300 2.50-GHz processor, 6
Torx T8M2.5×3.0 broad-head screwColor Quantity Length Thread Head diameterBlack 3 3.0 mm 2.5 mm 8.0 mmWhere used: 3 screws that secure the switch cove
Torx T8M2.5×4.0 screwColor Quantity Length Thread Head diameterBlack 7 4.0 mm 2.5 mm 5.0 mmWhere used: 2 screws that secure the speaker to the compute
Where used: 4 screws that secure the battery connector board to the base enclosure102 Chapter 7 Screw listing
Torx T8M2.5×6.0 screwColor Quantity Length Thread Heat widthBlack 16 6.0 mm 2.5 mm 5.0 mmWhere used: 8 screws that secure the display bezel to the dis
Where used:(1) One screw that secures the system board to the base enclosure(2) Three screws that secure the battery connector board to the base enclo
Phillips PM2.0×2.0 broad-head screwColor Quantity Length Thread Head diameterBlack 3 2.0 mm 2.0 mm 6.0 mmWhere used: 3 screws that secure the top cove
Phillips PM2.0×6.0 screwColor Quantity Length Thread Head diameterBlack 1 6.0 mm 2.0 mm 4.5 mmWhere used: One screw that secures the system board to t
Phillips PM2.5×7.0 screwColor Quantity Length Thread Head diameterBlack 1 7.0 mm 2.5 mm 5.0 mmWhere used: One screw that secures the fan to the base e
Phillips PM2.5×7.0 captive screwColor Quantity Length Thread Head diameterSilver 1 7.0 mm 2.5 mm 5.0 mmWhere used: One captive screw that secures the
Phillips PM2.5×10.0 captive screwColor Quantity Length Thread Head diameterSilver 6 10.0 mm 2.5 mm 5.0 mmWhere used: 6 captive screws that secure the
Category DescriptionMemory 2 customer-accessible/upgradable memory module slots Support for dual-channel memory Support for up to 4 GB of system RAM
8 Backup and recoveryCreating recovery discs in Windows VistaAfter setting up the computer for the first time, be sure to create a set of recovery dis
Backing up your information in Windows VistaNOTE: You can only recover files that you have previously backed up. HP recommends that you useHP Backup &
Backing up specific files or foldersYou can back up specific files or folders to the recovery partition on the hard drive, to an optional externalhard
Creating recovery pointsWhen you back up modifications since your last backup, you are creating system recovery points. Thisallows you to save a snaps
Performing a recovery in Windows VistaNOTE: You can only recover files that you have previously backed up. HP recommends that you useHP Backup & R
Initiating a recovery in WindowsTo initiate a recovery in Windows, follow these steps:1. Back up all personal files.2. Select Start > All Programs
Creating recovery discs in Windows XPAfter setting up the computer for the first time, be sure to create a set of recovery discs of the full factoryim
Backing up your information in Windows XPNOTE: You can only recover files that you have previously backed up. HP recommends that you useHP Backup and
Backing up specific files or foldersYou can back up specific files or folders to the recovery partition on the hard drive, to an optional externalhard
Creating recovery pointsWhen you back up modifications since your last backup, you are creating system recovery points. Thisallows you to save a snaps
Category Description Supports 3-mode diskette driveAudio HD audio - ADI1981 Single speakerModem 56K V.92 1.5-inch data/fax modem with digital line g
Performing a recovery in Windows XPNOTE: You can only recover files that you have previously backed up. HP recommends that you useHP Backup and Recove
Initiating a recovery in WindowsTo initiate a recovery in Windows, follow these steps:1. Back up all personal files.2. Select Start > All Programs
Initiating a recovery from the hard drive recovery partitionTo initiate a recovery from the hard drive recovery partition, follow these steps:1. Back
9 Connector pin assignmentsAudio-out (headphone)Pin Signal1 Audio out, left channel2 Audio out, right channel3GroundAudio-in (microphone)Pin Signal1 A
External monitorPin Signal1 Red analog2 Green analog3 Blue analog4 Not connected5 Ground6 Ground analog7 Ground analog8 Ground analog9 +5 VDC10 Ground
RJ-11 (modem)Pin Signal1 Unused2 Tip3 Ring4 Unused5 Unused6UnusedRJ-45 (network)Pin Signal1 Transmit +2 Transmit -3 Receive +4 Unused5 Unused6 Receive
Universal Serial BusPin Signal1 +5 VDC2 Data -3 Data +4 Ground126 Chapter 9 Connector pin assignments
10 Power cord set requirementsThe wide range input feature of the computer permits it to operate from any line voltage from 100 to 120volts AC or from
Requirements for specific countries and regionsCountry/region Accredited agency Applicable note numberAustralia EANSW 1Austria OVE 1Belgium CEBC 1Cana
11 RecyclingBatteryWhen a battery has reached the end of its useful life, do not dispose of the battery in general householdwaste. Follow the local la
Category Description TouchPad only, with 2 TouchPad buttons and vertical scrolling (taps enabled as default)Power requirements 90-W AC adapter with l
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
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
IndexAAC adapter, spare partnumber 21, 26antenna, disconnecting 40audio, product description 3audio-in jacklocation 8pin assignments 123audio-out jac
display hingeremoval 54spare part number 13, 24,54display inverterremoval 53spare part number 13, 26,53display lid switch moduleillustrated 19remova
removal 41spare part numbers 17, 22,41memory module compartment 10memory module compartmentcoverillustrated 18removal 41microphone jacklocation 8pin
Screw Kitcontents 90spare part number 21, 25screw listing 90SD/MMC Card Reader 8security cable slot 8Security menu 78security, product description 4s
2 External component identificationTop componentsTouchPadItem Component Function(1) TouchPad* Moves the pointer and selects or activates items on thes
Buttons, lights, and speakerItem Component Function(1) Wireless button Turns the wireless feature on or off, but does not establisha wireless connecti
Item Component Function(4) Power light●On: The computer is on.●Blinking: The computer is in the Sleep state (WindowsVista) or Standby (Windows XP).●Of
Front componentsItem Component Function(1) Audio-out (headphone) jack Produces sound when connected to optional poweredstereo speakers, headphones, ea
Left-side componentsItem Component Function(1) Battery light●Amber: A battery is charging.●Blue: A battery is close to full charge capacity.●Blinking
© Copyright 2007 Hewlett-PackardDevelopment Company, L.P.AMD, the AMD Arrow logo, andcombinations thereof, are trademarks ofAdvanced Micro Devices, In
Bottom componentsItem Component Function(1) Battery bay Holds the battery.(2) Battery release latches (2) Release the battery from the battery bay.(3)
3 Illustrated parts catalogSerial number locationWhen ordering parts or requesting information, provide the computer serial number and model numberloc
Computer major components12 Chapter 3 Illustrated parts catalog
Item Description Spare part number(1) Display assemblies (include 2 wireless antenna transceivers and cables) 17.0-inch, WXGA with AntiGlare 456582-00
Item Description Spare part number(5) Top cover 457616-001 Plastics Kit (see Plastics Kit on page 18 for more Plastics Kit spare part information): 4
Item Description Spare part number Intel Pentium Dual Core processor: ●T2310 1.83-GHz (1-MB L2 cache, 533-MHz FSB)462619-001 Intel Celeron M proce
Item Description Spare part number ●For use in Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda,Argentina, Armenia, Aruba, Australi
Item Description Spare part number ●For use in Canada, the Cayman Islands, Guam, Puerto Rico, the U.S. Virgin Islands, andthe United States441090-001
Plastics KitItem Description Spare part number Plastics Kit: 456614-001(1) Hard drive bay cover (includes 2 captive screws, secured by C-clips)(2) WL
Cable KitItem Description Spare part number Cable Kit: 457615-001(1) RJ-11 jack cable(2) Display lid switch module and cable(3) Bluetooth module cabl
MSG revision historyRevision Publication date DescriptionA February 2010 The top cover, part number 457616-001, does not include the TouchPad board an
Mass storage devicesItem Description Spare part number(1) Optical drives (include bezel and bracket) DVD±RW and CD-RW Super Multi Double-Layer Combo D
Miscellaneous partsDescription Spare part number90-W AC adapter 458220-001Logo Kit 456617-001Nylon carrying case 325814-001USB 1.1 diskette drive 3591
Sequential part number listingSpare partnumberDescription325814-001 Nylon carrying case342714-001 Power cord for use in the United States342714-011 Po
Spare partnumberDescription441075-002 Broadcom 802.11a/b/g WLAN module for use in Afghanistan, Albania, Algeria, Andorra, Angola, Antigua andBarbuda,
Spare partnumberDescription441090-002 Broadcom 802.11b/g WLAN module for use in Afghanistan, Albania, Algeria, Andorra, Angola, Antigua andBarbuda, Ar
Spare partnumberDescription456586-001 Display enclosure (includes display bezel, 2 wireless antenna transceivers and cables)456587-001 Keyboard for us
Spare partnumberDescription456616-001 Rubber Kit (contains 6 computer feet and 8 display bezel screw covers)456617-001 Logo Kit456797-001 DVD/CD-RW Co
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
iv MSG revision history
Packaging and transporting guidelinesFollow these grounding guidelines when packaging and transporting equipment:●To avoid hand contact, transport pro
Equipment guidelinesGrounding equipment must include either a wrist strap or a foot strap at a grounded workstation.●When seated, wear a wrist strap c
Unknown user passwordIf the computer you are servicing has an unknown user password, follow these steps to clear thepassword:NOTE: These steps also cl
Component replacement proceduresThis chapter provides removal and replacement procedures.There are as many as 93 screws, in 17 different sizes, that m
Computer feetThe computer feet are adhesive-backed rubber pads. The feet are included in the Rubber Kit, sparepart number 456616-001. There are 6 rubb
BatteryDescription Spare part number6-cell, 55-Wh Li-ion battery 456865-001Before disassembling the computer, follow these steps:1. Shut down the comp
Hard driveNOTE: All hard drive spare part kits include a hard drive bracket.Description Spare part number250-GB, 5400-rpm hard drive 457613-001160-GB,
5. Grasp the Mylar tab (2) on the hard drive and slide the hard drive (3) to the left to disconnect it fromthe system board.6. Remove the hard drive (
WLAN moduleDescription Spare part numberIntel 802.11a/b/g/n WLAN modules:●For use in Antigua and Barbuda, Argentina, Aruba, the Bahamas, Barbados, Ber
Description Spare part numberFor use only with computer models equipped with Intel Core Duo 2 processors:●For use in Antigua & Barbuda, Argentina,
Safety warning noticeWARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do notplace the computer directly on
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet andthen unplugging the AC adapter from the computer.4.
6. Remove the WLAN module (3) by pulling the module away from the slot at an angle.NOTE: WLAN modules are designed with a notch (4) to prevent incorre
2. Lift the rear edge of the cover (2), swing it up and forward, and remove the cover. The memorymodule compartment cover is included in the Plastics
Description Spare part numberDVD±RW and CD-RW Super Multi Double-Layer Combo Drive 456798-001Blu-ray Disc ROM and SuperMulti DVD±R/RW Double-Layer Dri
7. Remove the optical drive bracket (2).Reverse this procedure to reassemble and install an optical drive.44 Chapter 4 Removal and replacement proce
Switch cover and keyboardDescription Spare part numberSwitch cover (includes button board and cable) 456581-001Keyboards for use in the following coun
Remove the switch cover and keyboard:1. Remove the following screws:(1) Two Torx T8M2.5×9.0 screws(2) Two Torx T8M2.5×7.0 screws(3) Three Torx T8M2.5×
5. Lift the switch cover (1) straight up until it disengages from the computer, and slide it back (2) untilit rests on the display assembly.6. Lift th
7. Release the zero insertion force (ZIF) connector (1) to which the keyboard cable is attached, anddisconnect the keyboard cable (2) from the system
SpeakerDescription Spare part numberSpeaker 457614-001Before removing the speaker, follow these steps:1. Shut down the computer. If you are unsure whe
vi Safety warning notice
Display lid switch moduleNOTE: The display lid switch module is included in the Cable Kit, spare part number Cable Kit, sparepart number 457615-001.Be
Display assemblyNOTE: All display assembly spare part kits include 2 WLAN antenna transceivers and cables.Description Spare part number17.0-inch, WXGA
4. Lift the display assembly (2) straight up and remove it.5. If it is necessary to replace the display bezel, display inverter, or display hinges, re
7. Remove the display bezel (3). The display bezel is available in the display enclosure kit using sparepart number 456586-001.8. If it is necessary t
12. Remove the display panel (2).13. Remove the four Phillips PM2.0×4.0 screws (1) that secure each display hinge to the displaypanel.14. Remove the d
Top coverDescription Spare part numberTop cover 457616-001Before removing the top cover, follow these steps:1. Shut down the computer. If you are unsu
3. Turn the computer right-side up, with the left side toward you.4. Press in on the ExpressCard slot eject button (1) two times. The first press rele
10. Release the ZIF connector (4) to which the TouchPad cable is connected and disconnect theTouchPad cable from the system board.11. Remove the top c
TouchPad board and TouchPad button boardDescription Spare part numberTouchPad board (includes cable) 457617-001TouchPad button board (includes cable)
4. Remove the two Phillips PM2.0×4.0 screws (4) that secure the TouchPad bracket to the computer.5. Release the TouchPad bracket (1) by sliding it bac
Table of contents1 Product description2 External component identificationTop components ...
9. Remove the TouchPad board (1) from the top cover.NOTE: When replacing the TouchPad board and TouchPad button board, be sure the TouchPadbutton actu
f. Display assembly (see Display assembly on page 51)g. Top cover (see Top cover on page 55)Remove the Bluetooth module:1. Disconnect the Bluetooth mo
4. Remove the battery (see Battery on page 35).5. Remove the following components:a. Hard drive (see Hard drive on page 36)b. Optical drive (see Optic
3. Remove the following screws:(1) One Torx T8M2.5×6.0 screw that secures the system board to the base enclosure(2) Three Torx T8M2.5×6.0 screws that
7. If it is necessary to replace the battery connector board (1) and the optical drive connector board(2), remove them from the connectors on the syst
FanDescription Spare part numberFan 456604-001Before removing the fan, follow these steps:1. Shut down the computer. If you are unsure whether the com
3. Remove the fan (3) from the base enclosure.Reverse this procedure to install the fan.NOTE: To properly ventilate the computer, allow at least a 7.6
Heat sinkDescription Spare part numberHeat sink (includes replacement thermal material) 456606-001Before removing the heat sink, follow these steps:1.
3. Remove the heat sink (2).NOTE: The thermal material must be thoroughly cleaned from the surfaces of the heat sink (1), (2),and (3) and the processo
ProcessorNOTE: All processor spare part kits include replacement thermal material.Description Spare part numberIntel Core 2 Duo processors:●T9300 2.50
Unknown user password ... 32Component replacement proc
d. Speaker (see Speaker on page 49)e. Display lid switch module (see Display lid switch module on page 50)f. Display assembly (see Display assembly on
Modem moduleNOTE: The modem module spare part kit does not include a modem module cable. The modemmodule cable is included in the Cable Kit, spare par
3. Lift the modem module (2) straight up to disconnect it from the system board.4. Remove the modem module.Reverse this procedure to install the modem
RTC batteryNOTE: Removing the RTC battery and leaving it uninstalled for 5 or more minutes causes allpasswords and CMOS settings to be cleared.Descrip
2. Remove the RTC battery from the socket on the system board.Reverse this procedure to install the RTC battery.74 Chapter 4 Removal and replacement
5 Computer SetupStarting Computer SetupComputer Setup is a preinstalled, ROM-based utility that can be used even when the operating systemis not worki
Using Computer SetupNavigating and selecting in Computer SetupThe information and settings in Computer Setup are accessed from the File, Security, Dia
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 (or pre
System memory map specifications ... 897 Screw listin
6 SpecificationsComputer specifications Metric U.S.DimensionsLength28.49 cm 11.22 inWidth 39.62 cm 15.60 inHeight (front to rear) 3.23 to 3.58 cm 1.2
Metric U.S.Nonoperating 1.50 g zero-to-peak, 10 Hz to 500 Hz, 0.5 oct/min sweep rateNOTE: Applicable product safety standards specify thermal limits
Hard drive specifications 250-GB* 160-GB* 120-GB* 80-GB*DimensionsHeight9.5 mm 9.5 mm 9.5 mm 9.5 mmWidth 70 mm 70 mm 70 mm 70 mmWeight 101 g 101 g 10
DVD±RW and CD-RW Double-Layer Combo DrivespecificationsApplicable disc Read:CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I,C
DVD/CD-RW Combo Drive specificationsApplicable disc Read:CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I,CD-I Bridge (Photo-C
System DMA specificationsHardware DMA System functionDMA0 Not applicableDMA1* Not applicableDMA2* Not applicableDMA3 Not applicableDMA4 Direct memory
System interrupt specificationsHardware IRQ System functionIRQ0 System timerIRQ1 Standard 101-/102-Key or Microsoft® Natural KeyboardIRQ2 CascadedIRQ3
System I/O address specificationsI/O address (hex) System function (shipping configuration)000 - 00F DMA controller no. 1010 - 01F Unused020 - 021 Int
I/O address (hex) System function (shipping configuration)220 - 22F Entertainment audio230 - 26D Unused26E - 26 Unused278 - 27F Unused280 - 2AB Unused
System memory map specificationsSize Memory address System function640 KB 00000000-0009FFFF Base memory128 KB 000A0000-000BFFFF Video memory48 KB 000C
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