HP Compaq 6720t Mobile Thin Client Maintenance and Service Guide
© Copyright 2008 Hewlett-Packard Development Company, L.P. Bluetooth is a trademark owned by its proprietor and used by Hewlett-Packard Company under license. Intel and Celeron are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the U.S. and other countries. Microsoft, Windows, and Windows Vista are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.
Safety warning notice WARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do not place the computer directly on your lap or obstruct the computer air vents. Use the computer only on a hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow.
iv Safety warning notice
Table of contents 1 Product description 2 External component identification Top components ...................................................................................................................... 3 Display .................................................................................................................... 3 Lights ....................................................................................................................... 4 Buttons and speakers ......................
Equipment guidelines ................................................................. 25 Unknown user password .......................................................................................... 26 Component replacement procedures ........................................................................................ 27 Serial number ......................................................................................................... 27 Computer feet ............................................
Phillips PM2.0×6.0 captive screw ............................................................................................ 73 Torx T8M2.5×9.0 screw ......................................................................................................... 74 Silver Phillips PM2.0×4.0 screw .............................................................................................. 76 Phillips PM2.0×3.0 screw .................................................................................................
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1 Product description Category Description Product Name HP Compaq 6720t Mobile Thin Client Processors Intel® Celeron® M423 1.06-GHz processor 1-MB L2 cache, 533-MHz front side bus (FSB) Chipset Northbridge: Mobile Intel 945GM Express chipset with up to 800-MHz FSB Southbridge: Intel ICH-7M Graphics Intel unified memory architecture (UMA) graphics subsystem with up to 224-MB shared graphics subsystem memory Panel 15.
Category Description Audio-out (stereo headphone) Docking RJ-11 (modem) RJ-45 (Ethernet) USB (3) VGA (Dsub 15-pin) supporting 1600 × 1200 external resolution at 75-GHz (hot plug/unplug with auto-detect) 3-pin HP Smart Adapter AC power Keyboard/pointing devices Full-sized, spill-resistant keyboard with embedded numeric keypad TouchPad 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-pi
2 External component identification Top components 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.
Lights Item Component Function (1) Wireless lights* (2) ● Blue: An integrated wireless device, such as a wireless local area network (WLAN) device, is on. ● Off: All wireless devices are off. ● On: The computer is on. ● Blinking: The computer is in Standby. ● Off: The computer is off. ● Amber: A battery is charging. ● Blue: A battery is close to full charge capacity. ● Blinking amber: A battery that is the only available power source has reached a low battery level.
Item Component Function *The 2 wireless lights display the same information. The light on the wireless button is visible only when the computer is open. The wireless light on the front of the computer is visible whether the computer is open or closed. †The 2 power lights display the same information. The light on the power button is visible only when the computer is open. The power light on the front of the computer is visible whether the computer is open or closed.
Keys 6 Item Component Function (1) esc key Displays system information when pressed in combination with the fn key. (2) fn key Executes frequently used system functions when pressed in combination 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.
TouchPad Item Component Function (1) TouchPad* Moves the pointer and selects or activates items on the screen. (2) Left TouchPad button* 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.
Front components Item Component Function (1) Wireless light ● On: An integrated wireless device, such as a wireless local area network (WLAN) device, is on. ● Off: All wireless devices are off. ● On: The computer is on. ● Blinking: The computer is in Standby. ● Off: The computer is off. ● Amber: A battery is charging. ● Blue: A battery is close to full charge capacity. ● Blinking amber: A battery that is the only available power source has reached a low battery level.
Right-side components Item Component Function (1) Audio-out (headphone) jack Produces sound when connected to optional powered stereo speakers, headphones, ear buds, a headset, or television audio. (2) Audio-in (microphone) jack Connects an optional computer headset microphone, stereo array microphone, or monaural microphone. (3) USB ports (2) Connect optional USB devices. (4) Optical drive (select models only) Reads an optical disc.
Rear components Item Component Description (1) Power connector Connects an AC adapter. (2) External monitor port Connects an external VGA monitor or projector. Bottom components 10 Item Component Function (1) Battery bay Holds the battery. (2) Battery 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.
3 Illustrated 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.
Computer major components Item Description Spare part number (1) 15.
Item Description Spare part number Display hinges (includes left and right hinges) 466166-001 Display inverter 466167-001 (2) Switch cover (includes LED board and cable) 417520-001 (3) Keyboards For use in Belgium 481424-181 For use in the Czech Republic 481424-221 For use in Denmark 481424-081 For use in France 481424-041 For use in French Canada 481424-121 For use in Germany 481424-041 For use in Greece 481424-DJ1 For use in Hungary 481424-211 For use in Iceland 481424-DD1 For
Item Description Spare part number ● For use in Canada, Cayman Islands, Guam, Puerto Rico, the U.S.
Item Description 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
Plastics Kit Item 16 Description Spare part 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) Chapter 3 Illustrated parts catalog
Miscellaneous parts Description Spare part number 65-W HP Smart Adapter 391172-001 Power cords: For use in Australia and New Zealand 246959-011 For use in Brazil 246959-201 For use in Japan 246959-291 For use in South Korea 246959-AD1 For use the United States 246959-001 Screw Kit 417526-001 ● 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.
Sequential part number listing Spare part number Description 246959-001 Power cord for use in the United States 246959-011 Power cord for use in Australia and New Zealand 246959-201 Power cord for use in Brazil 246959-291 Power cord for use in Japan 246959-AD1 Power cord for use in South Korea 391172-001 65-W HP Smart Adapter 414046-001 1024-MB, PC2-5300, 667-MHz, DDR2 memory module 417520-001 Switch cover (includes LED board and cable) 417526-001 Screw Kit 417527-001 Plastics Kit (see
Spare part number Description 466422-001 Base enclosure (includes 8 rubber feet) 466423-001 Top cover (includes TouchPad board and cable, TouchPad button board and cable, speakers and cable) 466424-001 System board (includes RTC battery and replacement thermal material) 467782-001 8X Max DVD-ROM Drive (includes bezel and bracket) 467783-001 15.
20 Spare part 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 Chapter 3 Illustrated parts catalog
4 Removal and replacement procedures Preliminary replacement requirements Tools required You will need the following tools to complete the removal and replacement procedures: ● Flat-bladed screwdriver ● Magnetic screwdriver ● Phillips P0 and P1 screwdrivers ● Torx T8 screwdriver Service considerations The following sections include some of the considerations that you must keep in mind during disassembly and assembly procedures.
Cables and connectors CAUTION: When servicing the computer, be sure that cables are placed in their proper locations during the reassembly process. Improper cable placement can damage the computer. Cables must be handled with extreme care to avoid damage. Apply only the tension required to unseat or seat the cables during removal and insertion. Handle cables by the connector whenever possible. In all cases, avoid bending, twisting, or tearing cables.
Grounding guidelines Electrostatic discharge damage Electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure determine the degree of sensitivity. Networks built into many integrated circuits provide some protection, but in many cases, ESD contains enough power to alter device parameters or melt silicon junctions. A discharge of static electricity from a finger or other conductor can destroy static-sensitive devices or microcircuitry.
Packaging and transporting guidelines Follow these grounding guidelines when packaging and transporting equipment: ● To avoid hand contact, transport products in static-safe tubes, bags, or boxes. ● Protect ESD-sensitive parts and assemblies with conductive or approved containers or packaging. ● Keep ESD-sensitive parts in their containers until the parts arrive at static-free workstations. ● Place items on a grounded surface before removing items from their containers.
Equipment guidelines Grounding equipment must include either a wrist strap or a foot strap at a grounded workstation. ● When seated, wear a wrist strap connected to a grounded system. Wrist straps are flexible straps with a minimum of one megohm ±10% resistance in the ground cords. To provide proper ground, wear a strap snugly against the skin at all times. On grounded mats with banana-plug connectors, use alligator clips to connect a wrist strap.
Unknown user password If the computer you are servicing has an unknown user password, follow these steps to clear the password: NOTE: These steps also clear CMOS. 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. Disconnect all external devices connected to the computer. 3.
Component replacement procedures This chapter provides removal and replacement procedures. There are as many as 81 screws and screw locks, in 13 different sizes, that 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.
Computer feet The computer feet are adhesive-backed rubber 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.
Battery Description Spare part number 6-cell, 47-Wh Li-ion battery 467784-001 Before disassembling the computer, 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. 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.
Flash drive Description Spare part number 1-GB flash drive (includes flash drive bracket) 465619-001 Before removing the flash drive, 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. Disconnect all external devices connected to the computer. 3.
5. Remove the flash drive (3) from the flash drive bay. 6. If it is necessary to replace the flash drive bracket, slide the module out of the bracket. Reverse this procedure to reassemble and install the flash drive. Memory module Description Spare part number 1024-MB (PC2-5300, 667-MHz, DDR2) 414046-001 Before removing the memory module, follow these steps: 1. Shut down the computer.
2. Lift the right edge of the cover (2), swing it up and to the left, and remove the cover. The memory module compartment cover is included in the Plastics Kit, spare part number 417527-001. 3. Spread the retaining tabs (1) on each 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.
Optical drive NOTE: All optical drive spare part kits include an optical drive bezel. Description Spare part number 8X Max DVD-ROM Drive 467782-001 Before removing the optical drive, 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. Disconnect all external devices connected to the computer. 3.
7. Remove the optical drive bracket (2). Reverse this procedure to reassemble and install an optical drive.
Keyboard Description Spare part number Keyboards for use in the following countries or regions: Belgium 481424-181 Portugal 481424-131 The Czech Republic 481424-221 Russia 481424-251 Denmark 481424-081 Saudi Arabia 481424-171 France 481424-051 Slovakia 481424-231 French Canada 481424-121 Slovenia 481424-BA1 Germany 481424-041 South Korea 481424-AD1 Greece 481424-DJ1 Spain 481424-071 Hungary 481424-211 Sweden and Finland 481424-B71 Iceland 481424-DD1 Switzerland 481424-BG
Remove the keyboard: 36 1. Remove the two Torx T8M2.5×9.0 screws that secure the keyboard to the computer. 2. Turn the computer display-side up, with the front toward you. 3. Open the computer as 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.
7. Release the zero insertion 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.
RTC battery NOTE: Removing the RTC battery and leaving it uninstalled for 5 or more minutes causes all passwords and CMOS settings to be cleared. Description Spare part number RTC battery 449137-001 Before removing the RTC battery, 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. Disconnect all external devices connected to the computer. 3.
Heat sink Description Spare part number Heat sink (includes replacement thermal material) 468102-001 Before removing the heat sink, 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. Disconnect all external devices connected to the computer. 3.
Reverse this procedure to install the heat sink.
WLAN module Description Spare part number Broadcom 802.11a/b/g WLAN modules: ● For use in Canada, Cayman Islands, Guam, Puerto Rico, the U.S.
3. 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 incorrect installation. Reverse this procedure to install the WLAN module.
Switch cover Description Spare part number Switch cover (includes LED board and cable) 417520-001 Before removing the switch cover, 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. Disconnect all external devices connected to the computer. 3.
7. Remove the switch cover (2) by lifting it straight up. Reverse this procedure to install the switch cover.
Display assembly NOTE: All display assembly spare part kits include 2 WLAN antenna transceivers and cables. Description Spare part number 15.4-inch, WXGA, antiglare display assembly (includes display panel cable and 2 wireless antenna transceivers and cables) 467783-001 Before removing the display assembly, 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.
5. Remove the six Torx T8M2.5×9.0 screws (1) that secure the display assembly to the computer. 6. Lift the display assembly (2) straight up and remove it. 7. If it is necessary to replace the display bezel, display inverter, or display hinges, remove the rubber screw covers and 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.
9. Remove the display bezel (4). The display bezel is available using spare part number 466164-001. 10. If 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).
13. Remove the display inverter (3). The display inverter is available using spare part number 466167-001. 14. If it is necessary to replace the display 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.
Top cover Description Spare part number Top cover (includes TouchPad board and cable, TouchPad button board and cable, speakers and cable) 466423-001 Before removing the top cover, 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. Disconnect all external devices connected to the computer. 3.
4. Disconnect the speaker cable (1) from the system board. 5. Remove the four Torx T8M2.5×5.0 screws (2) that secure the top cover to the computer. 6. Lift the rear edge of the top cover (1) and swing it up and forward until it 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.
Modem module NOTE: The modem module spare part kit does not include a modem module cable. The modem module cable is included with the system board frame, spare part number 480894-001. Description Spare part number Modem module 441074-001 Before removing the modem module, 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. Disconnect all external devices connected to the computer. 3.
3. Disconnect the modem module cable (3) from the modem module. 4. Remove the modem module. Reverse this procedure to install the modem module. System board and system board frame Description Spare part number System board (includes RTC battery and replacement thermal material) 466424-001 System board frame (includes modem module cable) 480894-001 Before removing the system board and system board frame, follow these steps: 52 1. Shut down the computer.
When replacing the system board, be sure that the following components are removed from the defective system board and installed on the replacement system board: ● Memory module (see Memory module on page 31) ● WLAN module (see WLAN module on page 41) Remove the system board and system board frame: 1. Turn the computer upside down, with the front toward you. 2. Remove the two Torx T8M2.5×9.0 screws that secure the system board frame to the base enclosure. 3.
9. Remove the system board frame and system board (3) from the base enclosure. 10. Release the modem module cable (1) from the two clips built into the system board. 11. Release the RJ-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.
15. Remove the system board (2) by pulling it away from the system board frame at an angle. Reverse the preceding procedure to install the system board and system board frame. PC Card assembly Description Spare part number PC Card assembly 480829-001 Before removing the PC Card assembly, 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.
Remove the PC Card assembly: 1. Turn the system board upside down, with the front toward you. 2. Remove the two Phillips PM2.0×4.0 screws that secure 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.
Modem module cable NOTE: The modem module cable is included with the system board frame, spare part number 480894-001. See System board and system board frame on page 52 for system board frame information. Before removing the modem module cable, 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. Disconnect all external devices connected to the computer. 3.
Audio/USB board Description Spare part number Audio/USB board (includes audio board cable and USB board cable) 480828-001 Before removing the audio/USB board, 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. Disconnect all external devices connected to the computer. 3.
2. Lift the rear edge 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.
5 Computer Setup Starting Computer Setup Computer Setup is a preinstalled ROM-based utility that can be used even when the operating system is not working or will not load. NOTE: Some of the Computer Setup 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: 60 1. Turn on or restart the computer. 2.
Using Computer Setup Navigating and selecting in Computer Setup The information and settings in Computer Setup are accessed from the File, Security, Diagnostics, and System Configuration menus. 1. Open Computer Setup by turning on or restarting the computer, and then pressing f10 while the "F10 = ROM Based Setup" message is displayed in the lower-left corner of the screen. Because Computer Setup is not Windows-based, it does not support the TouchPad.
Computer Setup menus The menu tables in this section provide an overview of Computer Setup options. NOTE: Some of the Computer Setup menu items listed in this chapter may not be supported by your computer. File menu Select To do this System information ● View identification information for the computer and the batteries in the system. ● View specification information for the processor, cache and memory size, system ROM, video revision, and keyboard controller version.
Diagnostics menu Select To do this Memory Check Run a comprehensive test on system memory. System Configuration menu NOTE: Some of the listed System Configuration options may not be supported by your computer. Select To do this Language (or press f2) Change the Computer Setup language. Boot Options ● Set an f9, f10, and f12 delay when starting up. ● Enable/disable CD-ROM boot. ● Enable/disable floppy boot. ● Enable/disable internal network adapter boot and set the boot mode (PXE).
6 Specifications Computer specifications Metric U.S. Length 26.0 cm 10.23 in Width 35.7 cm 14.05 in Height (front to rear) 3.0 to 3.6 cm 1.16 to 1.43 in Weight (equipped with optical drive, flash drive, and battery) 2.54 kg 5.6 lbs Dimensions Input power Operating voltage 19.0 V dc @ 4.74 A – 90 W Operating current 4.
Metric Nonoperating U.S. 1.50 g zero-to-peak, 10 Hz to 500 Hz, 0.5 oct/min sweep rate NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. The computer operates well within this range of temperatures. 15.4-inch, WXGA display specifications Metric U.S. 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.
8X Max DVD-ROM Drive specifications Applicable disc DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18, CD-ROM (Mode 1 and 2), CD Digital Audio, CD-XA ready (Mode 2, Form 1 and Form 2), CD-I (Mode 2, Form 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 66 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) D
System DMA specifications Hardware DMA System function 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 interrupt specifications Hardware IRQ System function IRQ0 System timer IRQ1 Standard 101-/102-Key or Microsoft® Natural Keyboard IRQ2 Cascaded IRQ3 Intel 82801DB/DBM USB2 Enhanced Host Controller—24CD IRQ4 COM1 IRQ5* Conexant AC—Link Audio Intel 82801DB/DBM SMBus Controller—24C3 Data Fax Modem with SmartCP IRQ6 Diskette drive IRQ7* Parallel port IRQ8 System CMOS/real-time clock IRQ9* Microsoft ACPI-compliant system IRQ10* Intel USB UHCI controller—24C2 Intel 82852/82855 GM/GME
System I/O address specifications I/O address (hex) System function (shipping configuration) 000 - 00F DMA controller no. 1 010 - 01F Unused 020 - 021 Interrupt controller no.
70 I/O address (hex) System function (shipping configuration) 220 - 22F Entertainment audio 230 - 26D Unused 26E - 26 Unused 278 - 27F Unused 280 - 2AB Unused 2A0 - 2A7 Unused 2A8 - 2E7 Unused 2E8 - 2EF Reserved serial port 2F0 - 2F7 Unused 2F8 - 2FF Infrared port 300 - 31F Unused 320 - 36F Unused 370 - 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
System memory map specifications Size Memory address System function 640 KB 00000000-0009FFFF Base memory 128 KB 000A0000-000BFFFF Video memory 48 KB 000C0000-000CBFFF 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
7 Screw listing This section 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.
Phillips PM2.0×6.0 captive screw Color Quantity Length Thread Head diameter Black 3 6.0 mm 2.0 mm 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.
Torx T8M2.5×9.0 screw Color Quantity Length Thread Head diameter Black 21 9.0 mm 2.5 mm 5.
Where used: 6 screws 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.
Silver Phillips PM2.0×4.0 screw Color Quantity Length Thread Head diameter Silver 2 4.0 mm 2.0 mm 4.
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.
Where used: 4 screws that 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.
Phillips 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.
Where used: 2 screws that secure the display assembly right hinge to the computer 80 Chapter 7 Screw listing
Torx T8M2.5×5.0 screw Color Quantity Length 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.
Where used: 4 screws that secure the top cover to the base enclosure 82 Chapter 7 Screw listing
Torx 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.
Black Phillips PM2.0×4.0 screw Color Quantity Length Thread Head diameter Black 10 4.0 mm 2.0 mm 4.
Where used: 2 screws that secure the PC Card assembly to the system board Black Phillips PM2.0×4.
Torx T8M2.5×4.0 screw Color Quantity Length Thread Heat width Black 5 4.0 mm 2.5 mm 5.
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.
Torx T8M2.5×6.0 screw Color Quantity Length Thread Head diameter Black 5 6.0 mm 2.5 mm 5.
Hex 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.
8 Connector pin assignments Audio-out (headphone) Pin Signal 1 Audio out, left channel 2 Audio out, right channel 3 Ground Audio-in (microphone) 90 Pin Signal 1 Audio signal in 2 Audio signal in 3 Ground Chapter 8 Connector pin assignments
External monitor Pin Signal 1 Red 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
RJ-11 (modem) 92 Pin Signal 1 Unused 2 Tip 3 Ring 4 Unused 5 Unused 6 Unused Chapter 8 Connector pin assignments
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
9 Power cord set requirements The wide range input feature of the computer permits it to operate from any line voltage from 100 to 120 volts AC or from 220 to 240 volts AC. The 3-conductor power cord set included with the computer meets the requirements for use in the country or region where the equipment is purchased. Power cord sets for use in other countries and regions must meet the requirements of the country or region where the computer is used.
Requirements for specific countries and regions Country/region Accredited agency Applicable note number Australia EANSW 1 Austria OVE 1 Belgium CEBC 1 Canada CSA 2 Denmark DEMKO 1 Finland FIMKO 1 France UTE 1 Germany VDE 1 Italy IMQ 1 Japan METI 3 The Netherlands KEMA 1 Norway NEMKO 1 The People's Republic of China CCC 5 South Korea EK 4 Sweden SEMKO 1 Switzerland SEV 1 Taiwan BSMI 4 The United Kingdom BSI 1 The United States UL 2 1.
10 Recycling Battery When a battery has reached the end of its useful life, do not dispose of the battery in general household waste. Follow the local laws and regulations in your area for computer battery disposal. Display WARNING! The backlight contains mercury. Exercise caution when removing and handling the backlight to avoid damaging this component and causing exposure to the mercury. CAUTION: The procedures in this appendix can result in damage to display components.
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 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).
98 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 panel assembly 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.
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 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.
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 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.
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 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.
Index A AC adapter, spare part number 17, 18 accessory battery connector 10 antenna disconnecting 41 location 3 audio, product description 1 audio-in jack location 9 pin assignments 90 audio-out jack location 9 pin assignments 90 audio/USB board removal 58 spare part number 14, 19, 58 B base enclosure, spare part number 14, 19 battery location 10 removal 29 spare part number 15, 19, 29 battery bay 10 battery latches 10 battery light 4, 8 boot options 63 boot order 63 bottom components 10 business card hold
E electrostatic discharge 23 esc key 6 Ethernet, product description 1 external media cards, product description 1 external monitor port location 10 pin assignments 91 F feet locations 28 spare part number 28 File menu 62 flash drive location 10 precautions 22 product description 1 removal 30 spare part number 14, 18, 30 flash drive bay 10 flash drive bay cover illustrated 16 removal 30 flash drive bracket, removal 31 fn key 6 front components 8 function keys 6 G grounding equipment and methods 25 H headpho
pin assignments audio-in jack 90 audio-out jack 90 external monitor port 91 headphone jack 90 microphone jack 90 modem jack 92 monitor port 91 network jack 93 RJ-11 92 RJ-45 jack 93 Universal Serial Bus (USB) port 93 plastic parts 21 Plastics Kit contents 16 spare part number 14, 16, 18 pointing device components 7 illustrated 7 product description 2 pointing device components TouchPad 7 TouchPad buttons 7 TouchPad scroll zone 7 ports external monitor 10 monitor 10 product description 1 Universal Serial Bus
USB port location 9 pin assignments 93 V vents 9, 10 volume down button 5 volume mute button 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
