HP Compaq 6720t Maintenance And Service Manual Download

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Remove the display panel frame

(2)

from the display panel.

Remove the screws

(1)

that secure the backlight cover to the display panel.

Lift the top edge of the backlight cover

(2)

and swing it outward.

Remove the backlight cover.

Turn the display panel right-side up.

Display 99

Summary of Contents for Compaq 6720t

Page 1: ...HP Compaq 6720t Mobile Thin Client Maintenance and Service Guide ...

Page 2: ... trademarks or registered trademarks of Microsoft Corporation in the United States and or other countries The information contained herein is subject to change without notice The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services Nothing herein should be construed as constituting an additional warranty HP shall not ...

Page 3: ...llow another hard surface such as an adjoining optional printer or a soft surface such as pillows or rugs or clothing to block airflow Also do not allow the AC adapter to contact the skin or a soft surface such as pillows or rugs or clothing during operation The computer and the AC adapter comply with the user accessible surface temperature limits defined by the International Standard for Safety o...

Page 4: ...iv Safety warning notice ...

Page 5: ... Illustrated parts catalog Serial number location 11 Computer major components 12 Plastics Kit 16 Miscellaneous parts 17 Sequential part number listing 18 4 Removal and replacement procedures Preliminary replacement requirements 21 Tools required 21 Service considerations 21 Plastic parts 21 Cables and connectors 22 Drive handling 22 Grounding guidelines 23 Electrostatic discharge damage 23 Packag...

Page 6: ...cable 57 Audio USB board 58 5 Computer Setup Starting Computer Setup 60 Using Computer Setup 61 Navigating and selecting in Computer Setup 61 Restoring factory settings in Computer Setup 61 Computer Setup menus 62 File menu 62 Security menu 62 Diagnostics menu 63 System Configuration menu 63 6 Specifications Computer specifications 64 15 4 inch WXGA display specifications 65 8X Max DVD ROM Drive s...

Page 7: ...ps PM2 0 4 0 screw 84 Torx T8M2 5 4 0 screw 86 Phillips PM2 5 4 0 screw 87 Torx T8M2 5 6 0 screw 88 Hex HM5 0 11 0 screw lock 89 8 Connector pin assignments Audio out headphone 90 Audio in microphone 90 External monitor 91 RJ 11 modem 92 RJ 45 network 93 Universal Serial Bus 93 9 Power cord set requirements Requirements for all countries and regions 94 Requirements for specific countries and regio...

Page 8: ...viii ...

Page 9: ...ort for up to 1 GB of PC2 5300 667 MHz DDR2 system RAM Flash drive Support for one 1 GB solid state flash module Customer accessible Parallel ATA PATA Optical drives Fixed removal of 1 screw required DVD ROM Drive Customer accessible PATA 12 7 mm tray load Diskette drive Supports external USB diskette drive only Supports boot from external USB diskette drive Audio HD audio ADI1981 Single speaker M...

Page 10: ...uchPad only with 2 TouchPad buttons and vertical scrolling Power requirements 65 W HP Smart Adapter with localized cable plug support 3 wire plug with ground pin supports 3 pin DC connector 6 cell 47 Wh Li ion battery Support for optional 12 or 8 cell accessory battery Security Supports Kensington security lock Operating system Preinstalled Microsoft Windows XPe Serviceability End user replaceable...

Page 11: ...ponents Display Item Component Function 1 Wireless antennae 2 Send and receive signals from one or more wireless devices These antennae are not visible from the outside of the computer 2 Display release latch Opens the computer Top components 3 ...

Page 12: ...s reached a low battery level When the battery reaches a critical battery level the battery light begins blinking Off If the computer is plugged into an external power source the light turns off when all batteries in the computer are fully charged If the computer is not plugged into an external power source the light stays off until the battery reaches a low battery level 4 Drive light Blinking Th...

Page 13: ... When the computer is in Standby press the button briefly to exit Standby If the computer has stopped responding and Windows shutdown procedures are ineffective press and hold the power button for at least 5 seconds to turn off the computer To learn more about your power settings right click the Power Meter icon in the notification area and then click Adjust Power Properties 3 Internal display swi...

Page 14: ...with a function key or the esc key 3 Windows logo key Displays the Windows Start menu 4 Windows applications key Displays a shortcut menu for items beneath the pointer 5 Numeric keypad keys Can be used like the keys on an external numeric keypad 6 Function keys Execute frequently used system functions when pressed in combination with the fn key 6 Chapter 2 External component identification ...

Page 15: ...Functions like the left button on an external mouse 3 Right TouchPad button Functions like the right button on an external mouse 4 TouchPad scroll zone Scrolls up or down This table describes factory settings To view or change pointing device preferences select Start Control Panel Printers and Other Hardware Mouse Top components 7 ...

Page 16: ...hat is the only available power source has reached a low battery level When the battery reaches a critical battery level the battery light begins blinking rapidly Off If the computer is plugged into an external power source the light turns off when all batteries in the computer are fully charged If the computer is not plugged into an external power source the light stays off until the battery reac...

Page 17: ...lect models only Reads an optical disc Left side components Item Component Function 1 Security cable slot Attaches an optional security cable to the computer NOTE The security cable is designed to act as a deterrent but it may not prevent the computer from being mishandled or stolen 2 RJ 45 network jack Connects a network cable 3 RJ 11 modem jack Connects a modem cable 4 Vent Enables airflow to co...

Page 18: ...release latches 2 Release the battery from the battery bay 3 Accessory battery connector Connects an optional accessory battery 4 Business card holder Holds a standard size business card 5 Memory module compartment Contains the memory module slot 6 Flash drive bay Holds the flash drive 7 Vent Enables airflow to cool internal components 8 Docking connector Connects an optional docking device 10 Cha...

Page 19: ...ustrated parts catalog Serial number location When ordering parts or requesting information provide the computer serial number and model number located on the bottom of the computer Serial number location 11 ...

Page 20: ...n Spare part number 1 15 4 inch WXGA antiglare display assembly includes display panel cable and 2 wireless antenna transceivers and cables 467783 001 Display internal components Display bezel 466164 001 12 Chapter 3 Illustrated parts catalog ...

Page 21: ...481424 BB1 For use in Italy 481424 061 For use in Japan 481424 291 For use in the Netherlands 481424 B31 For use in Norway 481424 091 For use in Portugal 481424 131 For use in Russia 481424 251 For use in Saudi Arabia 481424 171 For use in Slovakia 481424 231 For use in Slovenia 481424 BA1 For use in South Korea 481424 AD1 For use in Spain 481424 071 For use in Sweden and Finland 481424 B71 For us...

Page 22: ...lic of Moldova Romania Russia Rwanda Samoa San Marino Sao Tome and Principe Saudi Arabia Senegal Serbia the Seychelles Sierra Leone Singapore Slovakia Slovenia the Solomon Islands Somalia South Africa South Korea Spain Sri Lanka St Kitts and Nevis St Lucia St Vincent and the Grenadines Suriname Swaziland Sweden Switzerland Taiwan Tajikistan Tanzania Togo Tonga Trinidad and Tobago Tunisia Turkey Tu...

Page 23: ...tion Spare part number 16 1024 MB PC2 5300 667 MHz DDR2 memory module 414046 001 17 6 cell 47 Wh Li ion battery 467784 001 18 8X Max DVD ROM Drive includes bezel and bracket 467782 001 Computer major components 15 ...

Page 24: ... number Plastics Kit 417527 001 1 Flash drive bay cover includes 2 captive screws secured by C clips 2 PC Card slot bezel 3 Memory module compartment cover includes one captive screw secured by a C clip 16 Chapter 3 Illustrated parts catalog ...

Page 25: ...9 AD1 For use the United States 246959 001 Screw Kit Hex HM5 0 11 0 screw lock Phillips PM2 5 4 0 screw Phillips PM2 5 3 0 screw Phillips PM2 0 6 0 captive screw Black Phillips PM2 0 4 0 screw Silver Phillips PM2 0 4 0 screw Phillips PM2 0 3 0 screw Phillips PM2 0 2 0 broad head screw Torx T8M2 5 9 0 screw Torx T8M2 5 7 0 screw Torx T8M2 5 6 0 screw Torx T8M2 5 5 0 screw Torx T8M2 5 4 0 screw 4175...

Page 26: ...public East Timor Ecuador Egypt El Salvador Equitorial Guinea Eritrea Estonia Ethiopia Fiji Finland France French Guiana Gabon Gambia Georgia Germany Ghana Gibraltar Greece Grenada Guadeloupe Guatemala Guinea Guinea Bissau Guyana Haiti Honduras Hong Kong Hungary Iceland India Ireland Israel Italy the Ivory Coast Jamaica Jordan Kazakhstan Kenya Kiribati Kyrgyzstan Laos Latvia Lebanon Lesotho Liberi...

Page 27: ...ble 481424 001 Keyboard for use in the United States 481424 031 Keyboard for use in the United Kingdom 481424 041 Keyboard for use in Germany 481424 051 Keyboard for use in France 481424 061 Keyboard for use in Italy 481424 071 Keyboard for use in Spain 481424 081 Keyboard for use in Denmark 481424 091 Keyboard for use in Norway 481424 121 Keyboard for use in French Canada 481424 131 Keyboard for ...

Page 28: ... number Description 481424 BG1 For use in Slovenia 481424 B31 For use in Israel 481424 B71 For use in Switzerland 481424 DD1 For use in Iceland 481424 DJ1 For use in Greece 20 Chapter 3 Illustrated parts catalog ...

Page 29: ...ections include some of the considerations that you must keep in mind during disassembly and assembly procedures NOTE As you remove each subassembly from the computer place the subassembly and all accompanying screws away from the work area to prevent damage Plastic parts Using excessive force during disassembly and reassembly can damage plastic parts Use care when handling the plastic parts Apply...

Page 30: ...g or inserting a flash drive shut down the computer If you are unsure whether the computer is off turn the computer on and then shut it down through the operating system Before handling a drive be sure that you are discharged of static electricity While handling a drive avoid touching the connector Before removing a diskette drive or optical drive be sure that a diskette or disc is not in the driv...

Page 31: ... Keep components in their electrostatic safe containers until you area ready to install them Use nonmagnetic tools Before touching an electronic component discharge static electricity by using the guidelines described in this section Avoid touching pins leads and circuitry Handle electronic components as little as possible If you remove a component place it in an electrostatic safe container The f...

Page 32: ...nd 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...

Page 33: ...e between the operator and ground To be effective the conductive strips must be worn in contact with the skin The following grounding equipment is recommended to prevent electrostatic damage Antistatic tape Antistatic smocks aprons and sleeve protectors Conductive bins and other assembly or soldering aids Nonconductive foam Conductive tabletop workstations with ground cords of one megohm resistanc...

Page 34: ...sconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 29 5 Remove the real time clock RTC battery see System board and system board frame on page 52 6 Wait approximately 5 minutes 7 Replace the RTC battery and reassemble the computer 8 Connect AC power to the computer ...

Page 35: ...hat must be removed replaced or loosened when servicing the computer Make special note of each screw size and screw lock location during removal and replacement Serial number Report the computer serial number to HP when requesting information or ordering spare parts The serial number is located on the bottom of the computer Component replacement procedures 27 ...

Page 36: ...r pads The feet are included in the Rubber Kit spare part number 480830 001 There are four oblong rubber feet 1 and four square rubber feet 2 that attach to the base enclosure in the locations illustrated below 28 Chapter 4 Removal and replacement procedures ...

Page 37: ... devices connected to the computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer Remove the battery 1 Turn the computer upside down on a flat surface with the battery bay toward you 2 Slide the battery release latches 1 to release the battery 3 Remove the battery 2 from the computer Install the ba...

Page 38: ...m the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 29 Remove the flash drive 1 Position the computer with the front toward you 2 Loosen the two Phillips PM2 0 6 0 captive screws 1 that secure the flash drive bay cover to the computer 3 Lift the right side of the flash drive bay cover 2 swing it to left and remove the cover The flash drive ...

Page 39: ...n the computer If you are unsure whether the computer is off turn the computer on and then shut it down through the operating system 2 Disconnect all external devices connected to the computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 29 Remove the memo...

Page 40: ...h side of the memory module slot to release the memory module The edge of the module opposite the slot rises away from the computer 4 Remove the memory module 2 by pulling the module away from the slot at an angle NOTE Memory modules are designed with a notch 3 to prevent incorrect installation into the memory module slot Reverse this procedure to install a memory module 32 Chapter 4 Removal and r...

Page 41: ...en unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 29 Remove the optical drive 1 Position the computer with the left side toward you 2 Remove the Torx T8M2 5 9 0 screw 1 that secures the optical drive to the computer 3 Insert a flat bladed screwdriver or similar tool into the optical drive tab access 2 and press the tab to the left to release the optical drive ...

Page 42: ...7 Remove the optical drive bracket 2 Reverse this procedure to reassemble and install an optical drive 34 Chapter 4 Removal and replacement procedures ...

Page 43: ...l 481424 BB1 Taiwan 481424 AB1 Italy 481424 061 Turkey 481424 141 Japan 481424 291 The United Kingdom 481424 031 The Netherlands 481424 B31 The United States 481424 001 Norway 481424 091 Before removing the switch cover and keyboard follow these steps 1 Shut down the computer If you are unsure whether the computer is off turn the computer on and then shut it down through the operating system 2 Dis...

Page 44: ... far as possible 4 Slide the four keyboard retention tabs 1 toward you The tabs are located between the esc and f1 keys between the f4 and f5 keys between the f8 and f9 keys and between the f12 and delete keys 5 Lift the rear edge of the keyboard 2 until it rests at an angle 6 Slide the keyboard back 3 until it rests against the display 36 Chapter 4 Removal and replacement procedures ...

Page 45: ...on force ZIF connector 1 to which the keyboard cable is attached and disconnect the keyboard cable 2 from the system board 8 Remove the keyboard Reverse this procedure to install the keyboard Component replacement procedures 37 ...

Page 46: ... shut it down through the operating system 2 Disconnect all external devices connected to the computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 29 5 Remove the keyboard see Keyboard on page 35 Remove the RTC battery Use a non conductive tool to remove ...

Page 47: ...on page 29 5 Remove the keyboard see Keyboard on page 35 Remove the heat sink 1 In the 1 2 3 4 5 6 7 8 sequence stamped into the heat sink remove the following screws 1 Four Phillips PM2 5 3 0 screws 2 Four Phillips PM2 0 3 0 screws NOTE When removing and replacing the heat sink inspect the thermal pads 3 for damage If the pads are damaged replace them 2 Remove the heat sink 4 by sliding it to the...

Page 48: ...Reverse this procedure to install the heat sink 40 Chapter 4 Removal and replacement procedures ...

Page 49: ...apua New Guinea Paraguay Peru the Philippines Poland Portugal the Republic of Moldova Romania Russia Rwanda Samoa San Marino Sao Tome and Principe Saudi Arabia Senegal Serbia the Seychelles Sierra Leone Singapore Slovakia Slovenia the Solomon Islands Somalia South Africa South Korea Spain Sri Lanka St Kitts and Nevis St Lucia St Vincent and the Grenadines Suriname Swaziland Sweden Switzerland Taiw...

Page 50: ...y pulling the module away from the slot at an angle NOTE WLAN modules are designed with a notch 4 to prevent incorrect installation Reverse this procedure to install the WLAN module 42 Chapter 4 Removal and replacement procedures ...

Page 51: ...by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 29 5 Remove the keyboard see Keyboard on page 35 Remove the switch cover 1 Close the computer 2 Turn the computer upside down with the rear toward you 3 Remove the three Phillips PM2 0 2 0 broad head screws that secure the switch cover to the computer ...

Page 52: ...7 Remove the switch cover 2 by lifting it straight up Reverse this procedure to install the switch cover 44 Chapter 4 Removal and replacement procedures ...

Page 53: ...r from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 29 5 Disconnect the wireless antenna cables from the WLAN module see WLAN module on page 41 6 Remove the keyboard see Keyboard on page 35 7 Remove the switch cover see Switch cover on page 43 Remove the display assembly 1 Disconnect...

Page 54: ... screws listed below 1 Four rubber screw covers on the display bezel top edge 2 Two rubber screw covers on the display bezel bottom edge 3 Four Torx T8M2 5 5 0 screws on the display bezel top edge 4 Two Torx T8M2 5 7 0 screws on the display bezel bottom edge 8 Flex the inside edges of the top 1 edge left and right sides 2 and the bottom edge 3 of the display bezel until the bezel disengages from t...

Page 55: ... it is necessary to replace the display inverter disconnect the display panel cable 1 and the backlight cable 2 from the display inverter 11 Remove the six Torx T8M2 5 5 0 screws 1 that secure the display panel to the display enclosure 12 Remove the display panel 2 Component replacement procedures 47 ...

Page 56: ...isplay hinges remove the four Phillips PM2 0 4 0 screws 1 that secure each display hinge to the display panel 15 Remove the display hinges 2 The left and right display hinges are available using spare part number 466166 001 Reverse this procedure to reassemble and install the display assembly 48 Chapter 4 Removal and replacement procedures ...

Page 57: ...m the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 29 5 Remove the following components a Optical drive see Optical drive on page 33 b Keyboard see Keyboard on page 35 c Switch cover see Switch cover on page 43 d Display assembly see Display assembly on page 45 Remove the top cover 1 Tur...

Page 58: ... rests at an angle 7 Lift up on the outside edges of the top cover left and right sides 2 until the top cover disengages from the base enclosure 8 Lift up on the front edge of the top cover 3 until the TouchPad board cable is accessible 9 Disconnect the TouchPad board cable 4 from the system board 10 Remove the top cover Reverse this procedure to install the top cover 50 Chapter 4 Removal and repl...

Page 59: ...he computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 29 5 Remove the following components a Optical drive see Optical drive on page 33 b Keyboard see Keyboard on page 35 c Switch cover see Switch cover on page 43 d Display assembly see Display assembly...

Page 60: ...omputer is off turn the computer on and then shut it down through the operating system 2 Disconnect all external devices connected to the computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 29 5 Remove the following components a Flash drive see Flash dri...

Page 61: ...ews that secure the system board frame to the base enclosure 3 Turn the computer right side up with the front toward you 4 Remove the five Torx T8M2 5 6 0 screws 1 that secure the system board frame to the base enclosure 5 Disconnect the USB board cable 2 and audio board cable 3 from the system board 6 Position the base enclosure with the rear toward you 7 Flex the base enclosure 1 above the USB c...

Page 62: ...11 connector 2 from the clip built into the system board 12 Remove the three Torx T8M2 5 4 0 screws 3 that secure the system board to the system board frame 13 Remove the two Hex HM5 0 11 0 screw locks 4 that secure the system board to the system board frame 14 Lift the front edge of the system board 1 until it rests at an angle 54 Chapter 4 Removal and replacement procedures ...

Page 63: ...tem 2 Disconnect all external devices connected to the computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 29 5 Remove the following components a Flash drive see Flash drive on page 30 b Optical drive see Optical drive on page 33 c Keyboard see Keyboard ...

Page 64: ...ure the PC Card assembly to the system board 3 Turn the system board right side up with the front toward you 4 Disengage the hook on the PC Card assembly from the tab 1 on the system board connector 5 Remove the PC Card assembly 2 Reverse the preceding procedure to install the PC Card assembly 56 Chapter 4 Removal and replacement procedures ...

Page 65: ... by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 29 5 Remove the following components a Flash drive see Flash drive on page 30 b Optical drive see Optical drive on page 33 c Keyboard see Keyboard on page 35 d Switch cover see Switch cover on page 43 e Display assembly see Display assembly on page 45...

Page 66: ...wer cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 29 5 Remove the following components a Flash drive see Flash drive on page 30 b Optical drive see Optical drive on page 33 c Keyboard see Keyboard on page 35 d Switch cover see Switch cover on page 43 e Display assembly see Display assembly on page 45 f Top cover see Top cover ...

Page 67: ...dge of the audio USB board 2 until the board is clear of the base enclosure 3 Remove the audio USB board from the base enclosure Reverse this procedure to install the audio USB board Component replacement procedures 59 ...

Page 68: ...tup menu items listed in this guide may not be supported by your computer NOTE Pointing devices are not supported in Computer Setup You must use the keyboard to navigate and make selections To start Computer Setup 1 Turn on or restart the computer 2 Before Windows opens and while the F10 ROM Based Setup message is displayed in the lower left corner of the screen press f10 60 Chapter 5 Computer Set...

Page 69: ...ences use the arrow keys to select File Ignore changes and exit Then follow the instructions on the screen To save your preferences and exit Computer Setup use the arrow keys to select File Save changes and exit Then follow the instructions on the screen Your preferences go into effect when the computer restarts Restoring factory settings in Computer Setup To return all settings in Computer Setup ...

Page 70: ... not changed when you restore the factory settings Ignore changes and exit Cancel any changes entered during the current session and exit Computer Setup Save changes and exit Save any changes entered during the current session and exit Computer Setup Your changes go into effect when the computer restarts Security menu NOTE Some of the menu items listed in this section may not be supported by your ...

Page 71: ...evices in the system Set the Express Boot Popup delay in seconds Set the boot order Device Configurations Swap the functions of the fn key and left ctrl key Enable disable USB legacy support When enabled USB legacy support allows the following Use of a USB keyboard in Computer Setup even when a Windows operating system is not running Startup from bootable USB devices including a hard drive diskett...

Page 72: ...perating not writing to optical disc 0 C to 35 C 32 F to 95 F Operating writing to optical disc 5 C to 35 C 41 F to 95 F Nonoperating 20 C to 60 C 4 F to 140 F Relative humidity Operating 10 to 90 Nonoperating 5 to 95 Maximum altitude unpressurized Operating 15 m to 3 048 m 50 ft to 10 000 ft Nonoperating 15 m to 12 192 m 50 ft to 40 000 ft Shock Operating 125 g 2 ms half sine Nonoperating 200 g 2...

Page 73: ...ay specifications Metric U S Dimensions Height 20 7 cm 8 15 in Width 33 1 cm 13 03 in Diagonal 39 1 cm 15 39 in Number of colors Up to 16 8 million Contrast ratio 200 1 typical Brightness 180 nits typical Pixel resolution Pitch 0 197 0 197 mm Format 1366 768 Configuration RGB vertical stripe Backlight CCFT Character display 80 25 Total power consumption 7 0 W Viewing angle 40 horizontal 50 vertica...

Page 74: ...1 and Form 2 CD R CD RW Photo CD single and multisession CD Bridge Access time CD DVD Random 100 ms 125 ms Cache buffer 512 KB Data transfer rate CD R 24X 3600 KB s 150 KB s at 1X CD rate CD RW 10X 1500 KB s 150 KB s at 1X CD rate CD ROM 24X 3600 KB s 150 KB s at 1X CD rate DVD 8X 10 800 KB s 1 352 KB s at 1X DVD rate Multiword DMA mode 2 16 6 MB s 66 Chapter 6 Specifications ...

Page 75: ...DMA0 Not applicable DMA1 Not applicable DMA2 Not applicable DMA3 Not applicable DMA4 Direct memory access controller DMA5 Available for ExpressCard DMA6 Not assigned DMA7 Not assigned ExpressCard controller can use DMA 1 2 or 5 System DMA specifications 67 ...

Page 76: ...ler 24C2 Intel 82852 82855 GM GME Graphic Controller Realtek RTL8139 Family PCI Fast Ethernet Controller IRQ11 Intel USB EHCI controller 24CD Intel USB UHCI controller 24C4 Intel USB UHCI controller 24C7 Intel Pro Wireless 2200BG TI OHCI 1394 host controller TI PCI1410 CardBus controller IRQ12 Synaptics PS 2 TouchPad IRQ13 Numeric data processor IRQ14 Primary IDE channel IRQ15 Secondary IDE channe...

Page 77: ...63 Unused 064 Keyboard controller 065 06F Unused 070 071 NMI enable RTC 072 07F Unused 080 08F DMA page registers 090 091 Unused 092 Port A 093 09F Unused 0A0 0A1 Interrupt controller no 2 I O Address hex System function shipping configuration 0A2 0BF Unused 0C0 0DF DMA controller no 2 0E0 0EF Unused 0F0 0F1 Coprocessor busy clear reset 0F2 0FF Unused 100 16F Unused 170 177 Secondary fixed disk co...

Page 78: ...0 377 Secondary diskette drive controller 378 37F Parallel port LPT1 default 380 387 Unused 388 38B FM synthesizer OPL3 38C 3AF Unused 3B0 3BB VGA 3BC 3BF Reserved parallel port no EPP support 3C0 3DF VGA 3E0 3E1 ExpressCard controller in CPU 3E2 3E3 Unused 3E8 3EF Internal modem 3F0 3F7 A diskette controller 3F8 3FF Serial port COM1 default CF8 CFB PCI configuration index register PCIDIVO 1 CFC C...

Page 79: ...0 000CBFFF Video BIOS 160 KB 000C8000 000E7FFF Unused 64 KB 000E8000 000FFFFF System BIOS 15 MB 00100000 00FFFFFF Extended memory 58 MB 04800000 07FFFFFF Super extended memory 58 MB 04800000 07FFFFFF Unused 2 MB 08000000 080FFFFF Video memory direct access 4 GB 08200000 FFFEFFFF Unused 64 KB FFFF0000 FFFFFFFF System BIOS System memory map specifications 71 ...

Page 80: ...tion provides specification and reference information for the screws and screw locks used in the computer All screws listed in this section are available in the Screw Kit spare part number 417526 001 72 Chapter 7 Screw listing ...

Page 81: ...5 0 mm Where used 1 Two captive screws that secure the flash drive bay cover to the computer screws are captured on the cover by C clips 2 One captive screw that secures the memory module compartment cover to the computer screw is captured on the cover by a C clip Phillips PM2 0 6 0 captive screw 73 ...

Page 82: ...Color Quantity Length Thread Head diameter Black 21 9 0 mm 2 5 mm 5 0 mm Where used 1 One screw that secures the optical drive to the computer 2 Two screws that secure the keyboard to the computer 74 Chapter 7 Screw listing ...

Page 83: ...ews that secure the display assembly to the computer Where used 10 screws that secure the top cover to the computer Where used 2 screws that secure the system board frame to the base enclosure Torx T8M2 5 9 0 screw 75 ...

Page 84: ...er Phillips PM2 0 4 0 screw Color Quantity Length Thread Head diameter Silver 2 4 0 mm 2 0 mm 4 5 mm Where used 2 screws that secure the optical drive bracket to the optical drive 76 Chapter 7 Screw listing ...

Page 85: ...Phillips PM2 0 3 0 screw Color Quantity Length Thread Head diameter Silver 6 3 0 mm 2 0 mm 4 5 mm Where used 2 screws that secure the WLAN module to the system board Phillips PM2 0 3 0 screw 77 ...

Page 86: ...t secure the heat sink to the computer Phillips PM2 5 3 0 screw Color Quantity Length Thread Head diameter Black 4 3 0 mm 2 5 mm 5 0 mm Where used 4 screws that secure the heat sink to the computer 78 Chapter 7 Screw listing ...

Page 87: ...ips PM2 0 2 0 broad head screw Color Quantity Length Thread Head diameter Black 5 2 0 mm 2 0 mm 7 0 mm Where used 3 screws that secure the switch cover to the computer Phillips PM2 0 2 0 broad head screw 79 ...

Page 88: ...Where used 2 screws that secure the display assembly right hinge to the computer 80 Chapter 7 Screw listing ...

Page 89: ...ength Thread Head diameter Black 14 5 0 mm 2 5 mm 5 0 mm Where used 4 screws that secure the display bezel top edge to the display assembly Where used 6 screws that secure the display panel to the display enclosure Torx T8M2 5 5 0 screw 81 ...

Page 90: ...Where used 4 screws that secure the top cover to the base enclosure 82 Chapter 7 Screw listing ...

Page 91: ...orx T8M2 5 7 0 screw Color Quantity Length Thread Head diameter Black 2 9 0 mm 2 5 mm 5 0 mm Where used 2 screws that secure the display bezel bottom edge to the display assembly Torx T8M2 5 7 0 screw 83 ...

Page 92: ...Black Phillips PM2 0 4 0 screw Color Quantity Length Thread Head diameter Black 10 4 0 mm 2 0 mm 4 5 mm Where used 8 screws that secure the display hinges to the display panel 84 Chapter 7 Screw listing ...

Page 93: ...Where used 2 screws that secure the PC Card assembly to the system board Black Phillips PM2 0 4 0 screw 85 ...

Page 94: ...tity Length Thread Heat width Black 5 4 0 mm 2 5 mm 5 0 mm Where used 3 screws that secure the system board to the system board frame Where used 2 screws that secure the audio USB board to the base enclosure 86 Chapter 7 Screw listing ...

Page 95: ...Phillips PM2 5 4 0 screw Color Quantity Length Thread Head diameter Black 2 4 0 mm 2 5 mm 5 0 mm Where used 2 screws that secure the modem module to the system board Phillips PM2 5 4 0 screw 87 ...

Page 96: ...Torx T8M2 5 6 0 screw Color Quantity Length Thread Head diameter Black 5 6 0 mm 2 5 mm 5 0 mm Where used 5 screws that secure the system board frame to the base enclosure 88 Chapter 7 Screw listing ...

Page 97: ... HM5 0 11 0 screw lock Color Quantity Length Thread Head diameter Silver 2 11 0 mm 2 5 mm 5 0 mm Where used 2 screw locks that secure the system board to the system board frame Hex HM5 0 11 0 screw lock 89 ...

Page 98: ...assignments Audio out headphone Pin Signal 1 Audio out left channel 2 Audio out right channel 3 Ground Audio in microphone Pin Signal 1 Audio signal in 2 Audio signal in 3 Ground 90 Chapter 8 Connector pin assignments ...

Page 99: ...d analog 2 Green analog 3 Blue analog 4 Not connected 5 Ground 6 Ground analog 7 Ground analog 8 Ground analog 9 5 VDC 10 Ground 11 Monitor detect 12 DDC 2B data 13 Horizontal sync 14 Vertical sync 15 DDC 2B clock External monitor 91 ...

Page 100: ...RJ 11 modem Pin Signal 1 Unused 2 Tip 3 Ring 4 Unused 5 Unused 6 Unused 92 Chapter 8 Connector pin assignments ...

Page 101: ...RJ 45 network Pin Signal 1 Transmit 2 Transmit 3 Receive 4 Unused 5 Unused 6 Receive 7 Unused 8 Unused Universal Serial Bus Pin Signal 1 5 VDC 2 Data 3 Data 4 Ground RJ 45 network 93 ...

Page 102: ...ents listed below are applicable to all countries and regions The length of the power cord set must be at least 1 5 m 5 0 ft and no more than 2 0 m 6 5 ft All power cord sets must be approved by an acceptable accredited agency responsible for evaluation in the country or region where the power cord set will be used The power cord sets must have a minimum current capacity of 10 amps and a nominal v...

Page 103: ...st be a two pole grounding type with a NEMA 5 15P 15 A 125 V or NEMA 6 15P 15 A 250 V configuration 3 The appliance coupler flexible cord and wall plug must bear a T mark and registration number in accordance with the Japanese Dentori Law The flexible cord must be Type VCT or VCTF 3 conductor 1 00 mm conductor size The wall plug must be a two pole grounding type with a Japanese Industrial Standard...

Page 104: ...ou remove these components handle them carefully NOTE Materials Disposal This HP product contains mercury in the backlight in the display assembly that might require special handling at end of life Disposal of mercury may be regulated because of environmental considerations For disposal or recycling information contact your local authorities or see the Electronic Industries Alliance EIA Web site a...

Page 105: ... covers 1 and screws 2 that secure the display bezel to the display assembly 2 Lift up and out on the left and right inside edges 1 and the top and bottom inside edges 2 of the display bezel until the bezel disengages from the display assembly 3 Remove the display bezel 3 Display 97 ...

Page 106: ...y to the display enclosure 6 Remove the display panel assembly 2 from the display enclosure 7 Turn the display panel assembly upside down 8 Remove all screws that secure the display panel frame to the display panel 9 Use a sharp edged tool to cut the tape 1 that secures the sides of the display panel to the display panel frame 98 Chapter 10 Recycling ...

Page 107: ... the display panel 11 Remove the screws 1 that secure the backlight cover to the display panel 12 Lift the top edge of the backlight cover 2 and swing it outward 13 Remove the backlight cover 14 Turn the display panel right side up Display 99 ...

Page 108: ...rn the display panel upside down WARNING The backlight contains mercury Exercise caution when removing and handling the backlight to avoid damaging this component and causing exposure to the mercury 17 Remove the backlight frame from the display panel 100 Chapter 10 Recycling ...

Page 109: ... the LCD panel 20 Remove the screws 2 that secure the LCD panel to the display rear panel 21 Release the LCD panel 3 from the display rear panel 22 Release the tape 4 that secures the LCD panel to the display rear panel 23 Remove the LCD panel 24 Recycle the LCD panel and backlight Display 101 ...

Page 110: ...s 4 pointing devices 7 rear 10 right side 9 speakers 5 top 3 TouchPad 7 computer feet locations 28 spare part number 28 Computer Setup accessing 60 Diagnostics menu 63 File menu 62 navigating and selecting 61 restoring factory settings 61 Security menu 62 System Configuration menu 63 using 61 computer specifications 64 connectors power 10 service considerations 22 D Diagnostics menu 63 diskette dr...

Page 111: ...pplications 6 Windows logo 6 L language changing in Computer Setup 63 left side components 9 legacy support Universal Serial Bus USB 63 light components 4 lights battery 4 8 caps lock 4 drive 4 8 numeric lock 4 power 4 8 volume mute 4 wireless 4 8 M memory check 63 memory map specifications 71 memory module product description 1 removal 31 spare part number 15 18 31 memory module compartment 10 me...

Page 112: ...inaries 21 procedures 27 restoring Computer Setup factory settings 61 right side components 9 RJ 11 jack location 9 pin assignments 92 RJ 45 jack location 9 pin assignments 93 RTC battery removal 38 spare part number 14 18 38 Rubber Feet Kit spare part number 14 19 S Screw Kit contents 72 spare part number 17 18 screw listing 72 security cable slot 9 Security menu 62 security product description 2...

Page 113: ...ton 5 volume mute light 4 volume up button 5 W Windows applications key 6 Windows logo key 6 wireless antenna disconnecting 41 location 3 wireless button 5 wireless light 4 8 wireless product description 1 WLAN module removal 41 spare part numbers 13 41 workstation guidelines 24 Index 105 ...

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HP Compaq 6720t, Maintenance And Service Manual

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