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t
Maintenance and Service
Guide
HP Compaq tc4400 Tablet PC
Document Part Number: 383208-002
May 2006
This guide is a troubleshooting reference used for maintaining
and servicing the tablet PC. It provides comprehensive
information on identifying tablet PC features, components, and
spare parts; troubleshooting tablet PC problems; and performing
tablet PC disassembly procedures.
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© Copyright 2006 Hewlett-Packard Development Company, L.P. Microsoft and Windows are U.S. registered trademarks of Microsoft Corporation. Intel, Celeron, and Core are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries. Bluetooth is a trademark owned by its proprietor and used by Hewlett-Packard Company under license. SD Logo is a trademark of its proprietor. The information contained herein is subject to change without notic
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Contents 1 Product Description 1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2 1.2 Resetting the Tablet PC. . . . . . . . . . . . . . . . . . . . . . . 1–4 1.3 Power Management. . . . . . . . . . . . . . . . . . . . . . . . . . 1–5 1.4 External Components . . . . . . . . . . . . . . . . . . . . . . . . 1–6 1.5 Design Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . 1–22 2 Troubleshooting 2.1 Computer Setup. . . . . . . . . . . . . . . . .
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Contents 3 Illustrated Parts Catalog 3.1 Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 3–1 3.2 Computer Major Components. . . . . . . . . . . . . . . . . . 3–2 3.3 Plastics Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–11 3.4 Cable Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–12 3.5 Miscellaneous (Not Illustrated). . . . . . . . . . . . . . . . 3–13 3.6 Sequential Part Number Listing . . . . . . . . . . . . . . . 3–15 4
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Contents 5 Removal and Replacement Procedures 5.1 Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2 5.2 Disassembly Sequence Chart . . . . . . . . . . . . . . . . . . 5–3 5.3 Preparing the Tablet PC for Disassembly . . . . . . . . . 5–5 5.4 Hard Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–7 5.5 Tablet PC Feet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–11 5.6 Bluetooth Module . . . . . . . . . . . . . . . . . . . . . .
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Contents 6 Specifications A Screw Listing B Software Backup and Recovery C Display Component Recycling D Connector Pin Assignments E Power Cord Set Requirements Index vi Maintenance and Service Guide
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1 Product Description The HP Compaq tc4400 Tablet PC offers advanced modularity, Intel® Core™ Duo and Celeron® M processors, and extensive multimedia support. HP Compaq tc4400 Tablet PC Maintenance and Service Guide 1–1
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Product Description 1.1 Features ■ Intel Core Duo T2600 (2.17-GHz), T2500 (2.00-GHz), T2400 (1.83-GHz), and T2300 (1.67-GHz) or Intel Celeron M 1.60-GHz processors, varying by tablet PC model ■ 12.1-inch, XGA, TFT (1024 × 768) display with over 16.8 million colors ■ 100-, 80-, or 60-GB high-capacity hard drive, varying by tablet PC model ■ 256-MB DDR2 synchronous DRAM (SDRAM) at 633 MHz and 533 MHz, expandable to 4.0 GB ■ Microsoft® Windows® XP Tablet Edition ■ Full-size Windows keyboard wi
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Product Description ■ External 65-watt AC adapter with 3-wire power cord ■ 6-cell Li-Ion battery pack ■ Audio speaker ■ Volume up, volume mute, and volume down buttons ■ Connectors: ❏ Infrared ❏ Audio-out (headphone) ❏ Audio-in (microphone) ❏ Universal Serial Bus (USB) v. 2.0 (3 ports, 1 powered) ❏ Power ❏ External monitor ❏ RJ-45 (network) ❏ RJ-11 (modem) ❏ S-Video-out ❏ PC Card ❏ Digital Media Slot ❏ Primary battery pack ❏ Travel battery pack ❏ Docking connector Maintenance and Service Guide 1
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Product Description 1.2 Resetting the Tablet PC If the tablet PC you are servicing has an unknown password, follow the steps below to clear the password. These steps also clear CMOS. The following steps will not clear an unknown password if the ✎ stringent security option has been enabled in the BIOS. If stringent security is enabled, the system board must be replaced to reset an unknown password. Refer to Section 5.21, “System Board,” for more information on replacing the system board. Be
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Product Description 1.3 Power Management The tablet PC comes with power management features that extend battery pack operating time and conserve power. The tablet PC supports the following power management features: ■ Standby ■ Hibernation ■ Setting customization by the user ■ Hotkeys for setting the level of performance ■ Battery calibration ■ Lid switch resume ■ Power button ■ Advanced Configuration and Power Management (ACPM) compliance Maintenance and Service Guide 1–5
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Product Description 1.4 External Components The external components on the front of the tablet PC are shown below and described in Table 1-1. Front Components Table 1-1 Front Components Item Component Function 1 Wireless light On: An integrated wireless device, such as a wireless local area network (WLAN) device and/or Bluetooth® device is turned on. 2Power light ■ On: The computer is on. ■ Blinking green: The computer is in standby. ■ Blinking rapidly: An HP Smart AC Adapter with a higher
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Product Description Table 1-1 Front Components (Continued) Item Component Function 3Battery light ■ Amber: A battery pack is charging. ■ Green: A battery pack is close to full charge capacity. ■ Blinking amber: A battery pack that is the only available power source has reached a low-battery condition. When the battery pack reaches a critical low-battery condition, the battery light begins blinking more quickly. ■ Off: If the computer is connected to an external power source, the light is
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Product Description The external components on the right side of the tablet PC are shown below and described in Table 1-2. Right-Side Components 1–8 Maintenance and Service Guide
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Product Description Table 1-2 Right-Side Components Item Component Function 1Audio-out Produces computer sound when connected (headphone) jack to optional power stereo speakers, headphones, ear buds, a headset, or television audio. 2 Audio-in (microphone) Connects an optional computer headset jack microphone, stereo array microphone, or monoarual microphone. 3 Powered USB port Connects USB 1.1- or 2.0-compliant devices to the tablet PC using a standard USB cable, or connects an optional e
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Product Description The external components on the left side of the tablet PC are shown below and described in Table 1-3. Left-Side Components Table 1-3 Left-Side Components Item Component Function 1 Security cable slot Attaches an optional security cable to the tablet PC. The purpose of security solutions is ✎ to act as deterrents. These deterrents may not prevent a product from being mishandled or stolen. 2 Vent Provides airflow to cool internal components. To prevent overheating, do not
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Product Description Table 1-3 Left-Side Components (Continued) Item Component Function 3 Wireless button Turns the wireless functionality of the WLAN or Bluetooth device on or off, but does not establish a connection. To establish a wireless connection, ✎ a wireless network must already be set up. 4 USB port Connects a USB 1.1- and 2.0-compliant device to the tablet PC using a standard USB cable. 5 Info Center button Launches Info Center, which enables you to open various software solutio
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Product Description The external components on the rear panel of the tablet PC are shown below and described in Table 1-4. Rear Panel Components 1–12 Maintenance and Service Guide
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Product Description Table 1-4 Rear Panel Components Item Component Function 1 USB port Connects USB 1.1- and 2.0-compliant devices to the tablet PC using a standard USB cable. 2 RJ-11 (modem) jack Connects a modem cable. Enabled with 56-K connectivity. 3 RJ-45 (network) jack Connects a network cable. Enabled with 10BASE-T/100BASE-TX/1000BASE-T connectivity. 4 Smart adapter power Connects an AC adapter, an optional connector AC adapter, or an optional power cable. 5 External monitor port Co
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Product Description The standard keyboard components of the tablet PC are shown below and described in Table 1-5. Standard Keyboard Components 1–14 Maintenance and Service Guide
