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HP 4320t Mobile Thin Client
Maintenance and Service Guide
SUMMARY
This guide is a troubleshooting reference used for maintaining and servicing the computer. It provides
comprehensive information on identifying computer features, components, and spare parts;
troubleshooting computer problems; and performing computer disassembly procedures.
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© Copyright 2010 Hewlett-Packard Development Company, L.P. Intel and Arrandale are trademarks of Intel Corporation in the U.S. and other countries. Windows is a U.S. registered trademark of Microsoft Corporation. SD Logo is a trademark of its proprietor. 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 a
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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. Also, do not allow the AC adapter to contact the skin or a soft surface, such as pillows or rugs or clothing
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iv Safety warning notice
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Table of contents 1 Product description ........................................................................................................................................ 1 2 External component identification ................................................................................................................ 4 Top components ................................................................................................................................... 4 TouchPad ..........
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Grounding guidelines ......................................................................................................... 31 Electrostatic discharge damage ........................................................................ 31 Packaging and transporting guidelines ............................................. 32 Workstation guidelines ..................................................................... 32 Equipment guidelines ...........................................................
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DVD-ROM drive specifications ........................................................................................................... 88 System resource specifications .......................................................................................................... 89 7 Power cord set requirements ...................................................................................................................... 90 Requirements for all countries and regions .......................
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viii
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1 Product description Category Description Product HP 4320t Mobile Thin Client, UMA Name Processors Intel® Arrandale™ P4500, 1.8-GHz, 3-MB L3 cache (35 W) Chipsets Intel® HM57 Express Graphics Intel® HD Graphics Universal Memory Architecture (UMA) graphics subsystem integrated with shared video memory (dynamically allocated) Panels All display panel assemblies support privacy filter LED backlight, 33.8-cm (13.3-in) HD (1366×768 resolution) Memory 2 customer-accessible/upgradable SODIMM memory mo
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Category Description Diskette Supports external USB diskette drive only drive Audio/ HD audio - IDT 92HD80 Visual Integrated microphone Two stereo speakers Headphone/microphone jacks Modem High-speed 56k modem for all regions and countries Modem cable not included Supports no-modem option Ethernet 10/100/1000 Ethernet network interface card (NIC) S3/S4/S5 wake on LAN (AC only mode) Ethernet cable not included Wireless Integrated WLAN options by way of wireless module: Support for the following W
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Category Description Power 65-W Smart AC Adapter with localized cable plug support (3-wire plug with ground pin) requirements 9-cell, 93-Wh Li-ion battery 6-cell, 47-Wh Li-ion battery Security Supports security cable Intel anti-theft support Operating Preinstalled: system Windows® Embedded Standard 7 Windows® Embedded Standard 2009 Web Support: Windows® Embedded Standard 7 Windows® Embedded Standard 2009 Serviceability End-user replaceable parts: AC adapter Battery (system) Keyboard Solid-state
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2 External component identification Top components TouchPad Component Description (1) TouchPad off indicator To turn the TouchPad zone on and off, quickly double-tap the TouchPad off indicator. NOTE: When the TouchPad zone is active, the light is off. (2) TouchPad zone Moves the pointer and selects or activates items on the screen. (3) Left TouchPad button* Functions like the left button on an external mouse. (4) Right TouchPad button* Functions like the right button on an external mouse. *This
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Lights Component Description (1) TouchPad off indicator Amber: The TouchPad is off. ● Off: The TouchPad is on. ● (2) Caps lock light On: Caps lock is on. (3) Power light On: The computer is on. ● Blinking: The computer is in the Sleep state. ● Off: The computer is off. ● (4) Wireless light ● White: An integrated wireless device is on, such as a wireless local area network (WLAN) device. ● Amber: All wireless devices are off. Top components 5
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Buttons, speakers, and switches NOTE: Your computer may look slightly different from the illustration in this section. Component Description (1) Speakers (2) Produce sound. (2) Internal display switch Turns off the display if the display is closed while the power is on. (3) Power button When the computer is off, press the button to turn on the ● computer. When the computer is on, press the button to shut down the ● computer. When the computer is in the Sleep state, press the button ● briefly to
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Keys Component Description (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) Function keys Execute frequently used system functions when pressed in combination with the fn key. (5) Windows applications key Displays a shortcut menu for items beneath the pointer. (6) Embedded numeric keypad
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Front components Component Description (1) Drive light Blinking white: The solid-state module or optical drive is ● being accessed. Amber: HP 3D DriveGuard has temporarily parked the solid- ● state module. (2) Media Card Reader Supports the following optional digital card formats: ● Memory Stick ● Memory Stick Duo (adapter required) ● Memory Stick Pro (adapter required) ● MultiMediaCard (MMC) ● Secure Digital (SD) Memory Card ● xD-Picture Card (XD) ● xD-Picture Card (XD) Type H ● xD-Picture Card
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Right-side components Component Description (1) USB 2.0 ports (2) Connect optional USB devices. (2) RJ-11 (modem) jack Connects a modem cable. (3) Optical drive light (select models only) Blinking: The optical drive is being accessed. (4) Optical drive eject button (select models Press to eject the optical disc. only) (5) Optical drive (select models only) Reads optical discs. Right-side components 9
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Left-side components Component Description (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) Power connector Connects an AC adapter. (3) Battery light Amber: A battery is charging. ● White: A battery is close to full charge capacity. ● Off: If the computer is plugged into an external power ● source, the light turns off when all batteries
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Bottom components Component Description (1) Battery release latches (2) Release the battery from the battery bay. (2) Battery bay Holds the battery. Bottom components 11
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Display NOTE: Your computer may look slightly different from the illustration in this section. Component Description (1) Internal display switch Turns off the display if the display is closed while the power is on. (2) Internal microphone Records sound. 12 Chapter 2 External component identification
