Maintenance and Service Guide HP Notebook Expansion Base Document Part Number: 344524-001 January 2004 This guide is a troubleshooting reference used for maintaining and servicing the HP Notebook Expansion Base. It provides comprehensive information on identifying Expansion Base features, components, and spare parts; troubleshooting problems; and performing disassembly procedures.
© Copyright 2004 Hewlett-Packard Development Company, L.P. 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 be liable for technical or editorial errors or omissions contained herein.
Contents 1 Product Description 1.1 1.2 1.3 1.4 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2 External Components . . . . . . . . . . . . . . . . . . . . . . . . 1–3 Wireless Accessories. . . . . . . . . . . . . . . . . . . . . . . . . 1–9 Design Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . 1–10 2 Troubleshooting Before Replacing Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1 Problems and Solutions . . . . . . . . . . . . . . . . . . . .
Contents 5 Removal and Replacement Procedures 5.1 Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2 5.2 Disassembly Sequence Chart . . . . . . . . . . . . . . . . . . 5–3 5.3 Preparing the HP Notebook Expansion Base for Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–4 5.4 Base Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–5 5.5 Upper Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–6 5.6 Power Supply . . .
1 Product Description The HP Notebook Expansion Base expands the connectivity of HP Compaq Business Notebook nx9100 Series; HP Pavilion zd7000, zv5000, and zx5000 Series notebook PCs; and the Compaq Presario R3000 Series notebook PC. The Expansion Base provides an efficient, less-cluttered work environment, improved cable management, and wireless peripherals. It eliminates the need to purchase a separate monitor, external speakers, USB hub, and a wireless keyboard and mouse kit.
Product Description 1.
Product Description 1.2 External Components The external components on the front panel of the Expansion Base are shown below and described in Table 1-2.
Product Description Table 1-2 Front Components Item Component Function 1 Expansion cable Connects the HP Notebook Expansion Base to the notebook computer. 2 Stereo speaker assembly Produces stereo sound from the notebook. 3 Volume down button Lowers system volume. 4 Mute button Mutes or restores volume. 5 Volume up button Increases system volume. 6 Connection indicator light Glows solid blue when the notebook is connected correctly.
Product Description The external components on the right side of the Expansion Base are shown below and described in Table 1-3 . Right-side components Table 1-3 Right-Side Components Item Component Function 1 Audio out/Headphone jack Connects optional headphone or powered stereo speakers. 2 USB connectors (3) Connect optional USB 2.0 devices. 3 Vent Allows airflow to cool internal components.
Product Description The external components on the rear of the Expansion Base are shown below and described in Table 1-4.
Product Description Table 1-4 Rear Panel Components Item Component Function 1 Expansion cable Connects the Expansion Base to a notebook computer. 2 RJ-11 jack Connects a modem cable from the Expansion Base to a notebook. 3 Vents (2) Allow airflow to cool internal components. Ä To prevent overheating, do not obstruct the vents. 4 USB connectors (3) Connect optional USB 2.0 devices 5 RJ-45 network jack Connects an Ethernet network cable from the Expansion Base to an RJ-45 wall jack.
Product Description The external components on the left side of the Expansion Base are shown below and described in Table 1-5. Left-Side Components Table 1-5 Left-Side Components Item Component Function 1 Kensington security cable slot Connects an optional security cable. 2 Vent ✎ Allows airflow to cool internal components. Ä 1–8 The purpose of security solutions is to act as a deterrent. These solutions do not prevent the product from being mishandled or stolen.
Product Description 1.3 Wireless Accessories Table 1-6 Wireless Accessories Item Component Function 1 Wireless keyboard Connects to the Expansion Base without a cable. 2 Receiver Connects to a USB port on the Expansion Base. Allows connection between the Expansion Base and the wireless keyboard and mouse. 3 Wireless mouse Connects to the Expansion Base without a cable.
Product Description 1.4 Design Overview This section presents a design overview of key parts and features of the HP Notebook Expansion Base. Refer to Chapter 3, “Illustrated Parts Catalog,” to identify replacement parts, and Chapter 5, “Removal and Replacement Procedures,” for disassembly steps.
2 Troubleshooting Å WARNING: Only authorized technicians trained by HP should repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly/module level repair. Because of the complexity of the individual boards and subassemblies, do not attempt to make repairs at the component level or modifications to any printed wiring board. Improper repairs can create a safety hazard.
Troubleshooting Problems and Solutions The following tables list possible problems, the possible cause of each problem, and the recommended solution. Table 2-1 Power Problems and Solutions Problem Possible Cause Solution The blue indicator light does not come on. The notebook is not powered on. Turn on the notebook. The Expansion Base is not connected to AC power. Verify that the AC cable is properly connected to the Expansion Base and to an AC power outlet.
Troubleshooting Table 2-2 External Device Problems and Solutions Problem Possible Cause Solution A new device is not recognized as part of the notebook system. The device cable or power cord is loose. ■ Test the device first by plugging it into the appropriate notebook connector. Note that composite TV out and serial connectors are not supported on the notebook. ■ Ensure that all cables are securely connected to the device and the Expansion Base.
3 Illustrated Parts Catalog This chapter provides an illustrated parts breakdown and a reference for spare part numbers and option part numbers. 3.1 Serial Number Location When ordering parts or requesting information, provide the Expansion Base serial number and model number located on the bottom of the base plate.
Illustrated Parts Catalog 3.
Illustrated Parts Catalog Table 3-1 Spare Parts: HP Notebook Expansion Base Major Components Item Description Spare Part Number 1 Back panel (with modem connector and cable) 347433-001 2 Upper chassis 347434-001 3 Expansion cable 347435-001 4 Speaker assembly 347431-001 5 Front tray cover 347432-001 Miscellaneous Plastics Kit (including the following components) 347436-001 6 Front case 7a Rear cover 7b Base enclosure 7c Base plate 8 Power supply and shield 347438-001 9 Syste
Illustrated Parts Catalog HP Notebook Expansion Base miscellaneous components 3–4 Maintenance and Service Guide
Illustrated Parts Catalog Table 3-1 Spare Parts: HP Notebook Expansion Base Miscellaneous Components Item Description Spare Part Number 1 Receiver 348088-001 2 Wireless mouse 348087-001 3 Wireless keyboard ADP Australia Brazil Canada (Fr.) Czech Rep.
Illustrated Parts Catalog Table 3-2 Spare Parts: HP Notebook Expansion Base Miscellaneous Components (not illustrated) Item Description Spare Part Number Power cord Australia Brazil Denmark Europe French Canada Israel India Italy Japan Korea China Switzerland United Kingdom United States 3–6 345252-011 345252-201 345252-081 345252-021 345252-121 345252-BB1 345252-D61 345252-061 345252-291 345252-AD1 345252-AA1 345252-111 345252-031 345252-001 Maintenance and Service Guide
4 Removal and Replacement Preliminaries This chapter provides essential information for proper and safe removal and replacement service. 4.1 Tools Required You will need the following tools to complete the removal and replacement procedures: ■ Magnetic screwdriver ■ Phillips P0 screwdriver ■ 5.0-mm hex socket for system board standoffs ■ Flat-bladed screwdriver ■ Tool kit (includes connector removal tool, loopback plugs, and case utility tool) 4.
Removal and Replacement Preliminaries Plastic Parts Using excessive force during disassembly and reassembly can damage plastic parts. Use care when handling the plastic parts. Apply pressure only at the points designated in the maintenance instructions. Cables and Connectors 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.
Removal and Replacement Preliminaries 4.4 Packaging and Transporting Precautions Use the following grounding precautions when packaging and transporting equipment: ■ To avoid hand contact, transport products in static-safe containers, such as tubes, bags, or boxes. ■ Protect all electrostatic-sensitive parts and assemblies with conductive or approved containers or packaging. ■ Keep electrostatic-sensitive parts in their containers until the parts arrive at static-free workstations.
Removal and Replacement Preliminaries 4.5 Workstation Precautions Use the following grounding precautions at workstations: 4–4 ■ Cover the workstation with approved static-shielding material (refer to Table 4-2, Static-Shielding Materials). ■ Use a wrist strap connected to a properly grounded work surface and use properly grounded tools and equipment. ■ Use conductive field service tools, such as cutters, screwdrivers, and vacuums.
Removal and Replacement Preliminaries 4.6 Grounding Equipment and Methods 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.
Removal and Replacement Preliminaries ■ Material-handling packages ■ Nonconductive plastic bags, tubes, or boxes ■ Metal tote boxes ■ Electrostatic voltage levels and protective materials Table 4-1 shows how humidity affects the electrostatic voltage levels generated by different activities.
5 Removal and Replacement Procedures This chapter provides removal and replacement procedures. There are 37 screws and standoffs, in six different sizes, that must be removed, replaced, and loosened when servicing the Expansion Base. Make special note of each screw size and location during removal and replacement. Refer to Appendix C, “Screw Listing,” for detailed information on screw sizes, locations, and usage.
Removal and Replacement Procedures 5.1 Serial Number Report the Expansion Base serial number to HP when requesting information or ordering spare parts. The serial number is located on the bottom of the Expansion Base.
Removal and Replacement Procedures 5.2 Disassembly Sequence Chart Use the chart below to determine the section number to be referenced when removing Expansion Base components. Disassembly Sequence Chart # of Screws Removed Section Description 5.3 Preparing the Expansion Base for disassembly 5.4 Base plate 4 5.5 Upper chassis 2 5.6 Power supply 5 5.7 System board 5 5.8 Front tray cover 4 5.9 Back panel 4 5.10 Expansion cable 4 5.11 Speaker assembly 2 5.
Removal and Replacement Procedures 5.3 Preparing the HP Notebook Expansion Base for Disassembly Perform the following steps before disassembling the Expansion Base: 1. If the notebook computer is in the Expansion Base, turn off the notebook and press the buttons on the end of the expansion cable 1 to disconnect the cable from the notebook 2. 2. Disconnect the AC adapter and all external devices. location of the expansion connector on the notebook may ✎ The vary by notebook series and model.
Removal and Replacement Procedures 5.4 Base Plate Spare Part Number Information Base plate The base plate is included in the Miscellaneous Plastics Kit 347436-001 1. Turn the Expansion Base upside down with the front facing away from you. 2. Remove the four PM2.5×17.0 screws 1 that secure the base plate to the base enclosure. 3. Remove the base plate 2. Removing the base plate Reverse the above procedure to install the base plate.
Removal and Replacement Procedures 5.5 Upper Chassis 1. Prepare the Expansion Base for disassembly (Section 5.3). 2. Remove the base plate (Section 5.4). 3. Turn the Expansion Base right-side up with the rear panel facing you. 4. Remove the adhesive-backed 8.0-mm diameter screw covers 1. 5. Remove the two PM2.0×6.0 screws 2 that secure the rear cover to the base enclosure.
Removal and Replacement Procedures 6. Lift the front edge of the rear cover up 1 until it disengages from the base enclosure. 7. Slide the rear cover toward you 2 and remove it.
Removal and Replacement Procedures 8.
Removal and Replacement Procedures 9. Remove the two PM2.0×4.0 screws 1 that secure the upper chassis to the base enclosure. 10. Swing the top edge of the upper chassis upward 2 to disengage it from the base enclosure. 11. Lift the upper chassis straight up 3 and remove it. Removing the upper chassis Reverse the above procedure to install the upper chassis.
Removal and Replacement Procedures 5.6 Power Supply Spare Part Number Information Power supply 347438-001 1. Prepare the Expansion Base for disassembly (Section 5.3). 2. Remove the base plate (Section 5.4). 3. Remove the upper chassis (Section 5.5). 4. Turn the base enclosure upside down with the front facing you. 5. While holding the power supply in place with one hand underneath, remove the five PM2.0×6.0 screws that secure the power supply to the base enclosure.
Removal and Replacement Procedures 6. Turn the base enclosure right-side up with the rear facing you. 7. On the base enclosure, disconnect the power supply cable 1 from the system board. 8. Lift the power supply and shield approximately one inch 2. 9. While holding the power supply and shield, remove the power connector 3 from the supports in the base enclosure. Removing the power supply Reverse the above procedure to install the power supply.
Removal and Replacement Procedures 5.7 System Board Spare Part Number Information System board 347437-001 1. Prepare the Expansion Base for disassembly (Section 5.3). 2. Remove the base plate (Section 5.4). 3. Remove the upper chassis (Section 5.5). 4. Remove the power supply (Section 5.6). 5. Position the base enclosure with the rear panel facing you. 6. Remove the three PM2.0×6.0 screws 1 that secure the system board to the base enclosure. 7. Use a 5.0-mm hex socket to remove the two HM5.0x9.
Removal and Replacement Procedures 8. Swing the top left edge of the system board clockwise 1 until the audio connector 2 disengages from the hole 3 in the base enclosure. 9. Remove the system board from the base enclosure 4. Removing the system board Reverse the above procedure to install the system board.
Removal and Replacement Procedures 5.8 Front Tray Cover Spare Part Number Information Front tray cover 347432-001 1. Prepare the Expansion Base for disassembly (Section 5.3). 2. Remove the base plate (Section 5.4). 3. Remove the upper chassis (Section 5.5). 4. Turn the upper chassis upside down with the docking connector and cable facing away from you. 5. Cut all tie-wraps 1 that bundle the Expansion Base cables and secure the RJ-11 modem cable to the chassis. 6. Remove the four PM2.0×4.
Removal and Replacement Procedures 7. Turn the upper chassis right-side up with the expansion cable facing you. 8. Slide the front tray cover upward and then away from you to remove it. Removing the front tray cover Reverse the above procedure to install the front tray cover.
Removal and Replacement Procedures 5.9 Back Panel Spare Part Number Information Back panel with RJ-11 cable 347433-001 1. Prepare the Expansion Base for disassembly (Section 5.3). 2. Remove the base plate (Section 5.4). 3. Remove the upper chassis (Section 5.5). 4. Remove the front tray cover (Section 5.8). 5. Position the upper chassis right-side up with the speakers facing you. sure that the back panel is supported before performing the ✎ Make following steps. 6. Remove the four PM2.0×4.
Removal and Replacement Procedures 5.10 Expansion Cable Spare Part Number Information Expansion cable 347435-001 1. Prepare the Expansion Base for disassembly (Section 5.3). 2. Remove the base plate (Section 5.4). 3. Remove the upper chassis (Section 5.5). 4. Remove the front tray cover (Section 5.8). 5. Remove the back panel (Section 5.9). 6. Turn the upper chassis right-side up with the rear facing you. Rotate the chassis so that the expansion cable connector is facing away from you. 7.
Removal and Replacement Procedures 5.11 Speaker Assembly Spare Part Number Information Speaker assembly 347431-001 1. Prepare the Expansion Base for disassembly (Section 5.3). 2. Remove the base plate (Section 5.4). 3. Remove the upper chassis (Section 5.5). 4. Remove the front tray cover (Section 5.8). the back panel and expansion cable are not shown in the ✎ Although figure, it is not necessary to remove them. 5.
Removal and Replacement Procedures 8. Rotate the chassis 180 degrees toward you. 9. Slide the speaker assembly away from you 1 to disengage it from the chassis. 10. Lift the edge of the speaker assembly to remove it from the chassis 2. Removing the speaker assembly Reverse the above procedure to install the speaker assembly.
Removal and Replacement Procedures 5.12 Front Case Spare Part Number Information Front case (plastics kit) 347436-001 Upper chassis 347434-001 1. Prepare the Expansion Base for disassembly (Section 5.3). 2. Remove the base plate (Section 5.4). 3. Remove the upper chassis (Section 5.5). 4. Remove the front tray cover (Section 5.8). 5. Remove the speaker assembly (Section 5.11). 6. Turn the chassis right-side up with the rear facing you. Rotate the top of the chassis toward you. 7. Remove the six PM2.
6 Specifications This chapter provides physical and performance specifications. Table 6-1 HP Notebook Expansion Base Dimensions Height Width Depth 22.8 cm 31.8 cm 29.8 cm 9 in 12.5 in 11.75 in 3.5 kg 7.5 lb Weight Stand-alone power requirements Power supply 18.
Specifications Table 6-2 Internal AC Adapter Power supply Rated input voltage Rated input current Rated frequency 6–2 160 W with PFC 100 to 240 VAC RMS 1.
A Connector Pin Assignments Table A-1 RJ-45 Network Interface Pin Signal Pin Signal 1 Transmit + 5 Unused 2 Transmit – 6 Receive – 3 Receive + 7 Unused 4 Unused 8 Unused Maintenance and Service Guide A–1
Connector Pin Assignments Table A-2 RJ-11 Modem Pin Signal Pin Signal 1 Unused 4 Unused 2 Tip 5 Unused 3 Ring 6 Unused Table A-3 Universal Serial Bus Pin Signal Pin Signal 1 +5 VDC 3 Data + 2 Data – 4 Ground A–2 Maintenance and Service Guide
Connector Pin Assignments Table A-4 S-Video 4 3 2 1 Pin Signal Pin Signal 1 Ground (Y) 3 Y-Luminance (Intensity) 2 Ground (C) 4 C-Chrominance (Color) Table A-5 Audio Line-Out Pin Signal Pin Signal 1 Audio out 2 Ground Maintenance and Service Guide A–3
Connector Pin Assignments Table A-6 Serial Pin Signal Pin Signal 1 Carrier detect 6 Data set ready 2 Receive data 7 Ready to send 3 Transmit data 8 Clear to send 4 Data terminal ready 9 Ring indicator 5 Ground A–4 Maintenance and Service Guide
Connector Pin Assignments Table A-7 S/PDIF Audio Line-Out 1 2 Pin Signal Pin Signal 1 Audio signal 2 Ground/return Table A-8 Video 1 2 Pin Signal Pin Signal 1 Video signal 2 Ground/return Maintenance and Service Guide A–5
B Power Cord Set Requirements 3-Conductor Power Cord Set The wide range input feature of the notebook permits it to operate from any line voltage from 100 to 120 or 220 to 240 volts AC. The power cord set shipped with the notebook meets the requirements for use in the country where the equipment is purchased. Power cord sets for use in other countries must meet the requirements of the country where the notebook is used.
Power Cord Set Requirements Country-Specific Requirements 3-Conductor Power Cord Set Requirements Country 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 Sweden SEMKO 1 Switzerland SEV 1 B–2 Maintenance and Service Guide
Power Cord Set Requirements 3-Conductor Power Cord Set Requirements (Continued) Country Accredited Agency Applicable Note Number United Kingdom BSI 1 United States UL 2 Notes 1. The flexible cord must be Type HO5VV-F, 3-conductor, 1.0 mm² conductor size. Power cord set fittings (appliance coupler and wall plug) must bear the certification mark of the agency responsible for evaluation in the country where it will be used. 2. The flexible cord must be Type SPT-3 or equivalent, No.
C Screw Listing This appendix provides specification and reference information for the screws used in the HP Notebook Expansion Base. All screws listed in this appendix are available in the Miscellaneous Screw Kit, spare part number 347439-001.
Screw Listing Table C-1 Phillips PM2.5×17.0 Screw mm Color Qty. Length Thread Head Width Bronze 4 17.0 mm 2.5 mm 6.0 mm Where used: Four screws that secure the base plate to the base enclosure (documented in Section 5.4) Phillips M2.5×17.
Screw Listing Table C-2 Phillips PM2.0×6.0 Screw mm Color Qty. Length Thread Head Width Bronze 10 6.0 mm 2.0 mm 4.5 mm Where used: Five screws that secure the power supply to the base enclosure (documented in Section 5.6) Phillips M2.0×6.
Screw Listing Table C-2 Phillips PM2.0×6.0 Screw (Continued) mm Color Qty. Length Thread Head Width Bronze 10 6.0 mm 2.0 mm 4.5 mm Where used: Two screws that secure the rear cover to the base enclosure (documented in Section 5.5) Phillips M2.0×6.
Screw Listing Table C-2 Phillips PM2.0×6.0 Screw (Continued) mm Color Qty. Length Thread Head Width Bronze 10 6.0 mm 2.0 mm 4.5 mm Where used: Three screws that secure the system board to the base enclosure (documented in Section 5.7) Phillips M2.0×6.
Screw Listing Table C-4 HM5.0×9.0 Standoff mm Color Qty. Length Thread Head Width Silver 2 9.0 mm 5.0 mm 5.0 mm Where used: Two standoffs that secure the system board to the base enclosure (documented in Section 5.7) HM5.0×9.
Screw Listing Table C-5 Phillips PM2.0×4.0 Screw mm Color Qty. Length Thread Head Width Bronze 18 4.0 mm 2.0 mm 4.0 mm Where used: Two screws that secure the upper chassis to the base enclosure (documented in Section 5.5) Phillips M2.0×4.
Screw Listing Table C-5 Phillips PM2.0x4.0 Screw (Continued) mm Color Qty. Length Thread Head Width Bronze 18 4.0 mm 2.0 mm 4.0 mm Where used: Four screws that secure the front tray cover to the upper chassis (documented in Section 5.8) Phillips M2.0x4.
Screw Listing Table C-5 Phillips PM2.0×4.0 Screw (Continued) mm Color Qty. Length Thread Head Width Bronze 18 4.0 mm 2.0 mm 4.0 mm Where used: Four screws that secure the back panel to the chassis (documented in Section 5.9) Phillips M2.0x4.
Screw Listing Table C-5 Phillips PM2.0×4.0 Screw (Continued) mm Color Qty. Length Thread Head Width Bronze 18 4.0 mm 2.0 mm 4.0 mm Where used: Two screws that secure the speaker assembly to the chassis (documented in Section 5.11) Phillips M2.0x4.
Screw Listing Table C-5 Phillips PM2.0×4.0 Screw (Continued) mm Color Qty. Length Thread Head Width Bronze 18 4.0 mm 2.0 mm 4.0 mm Where used: Six screws that secure the front case to the chassis (documented in Section 5.12) Phillips M2.0x4.
Screw Listing Table C-6 Phillips PM2.0×2.0 Screw mm Color Qty. Length Thread Head Width Silver 4 2.0 mm 2.0 mm 8 mm Where used: Four screws that secure the expansion cable brackets to the chassis (documented in Section 5.10) Phillips M2.0x2.
Index A AC adapter specifications 6–2 audio line-out pin assignments A–3 B back panel removal 5–16 spare part number 3–3 base enclosure, spare part number 3–3 base plate removal 5–5 spare part number 3–3 C cables, service considerations 4–2 components front 1–3 left-side 1–5 rear 1–5 right-side 1–3, 1–5 composite jack 1–7 connection indicator light 1–4 connector pin assignments audio line-out A–3 modem jack A–2 network jack A–1 RJ-11 telephone jack A–2 Maintenance and Service Guide RJ-45 network jack A–1
Index G grounding equipment and methods 4–5 H headphone jack 1–5 K keyboard, wireless 1–9 L left-side components 1–5 M Miscellaneous Plastics Kit, spare part number 3–3 modem jack, pin assignments A–2 mouse, wireless 1–9 mute button 1–4 N network jack, pin assignments A–1 P packing precautions 4–3 plastic parts 4–2 power connector 1–7 power cord set requirements B–1 power cord, spare part numbers 3–6 power supply removal 5–10 spare part number 3–3 R rear components 1–5 rear cover removal 5–6 spare p
Index V system board removal 5–12 spare part number 3–3 system board cables, removal 5–8 vent 1–5, 1–7, 1–8 volume down button 1–4 volume up button 1–4 T W tools required 4–1 transporting precautions 4–3 troubleshooting 2–1 problems and solutions 2–2 TV out, location 1–7 wireless accessories 1–9 wireless keyboard 1–9 spare part numbers 3–5 wireless mouse 1–9 spare part number 3–5 workstation precautions 4–4 U upper chassis removal 5–6 spare part number 3–3 USB connectors location 1–5, 1–7 pin assign
