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®
HP OmniBook 900
Service Manual
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Notice In a continuing effort to improve the quality of our products, technical and environmental information in this document is subject to change without notice. This manual and any examples contained herein are provided “as is” and are subject to change without notice. Hewlett-Packard Company makes no warranty of any kind with regard to this manual, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard Co. shall not be l
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Contents 1. Product Information ..................................................................................................1-1 Features and Operation................................................................................................................. 1-3 Turning the OmniBook On and Off....................................................................................... 1-4 Checking the Status of the OmniBook....................................................................
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Figures Figure 1-1. OmniBook - Front View....................................................................................................1-3 Figure 1-2. OmniBook - Side View .....................................................................................................1-3 Figure 1-3. OmniBook - Rear View.....................................................................................................1-3 Figure 1-4. Replaceable Module Diagram .........................................
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Table 3-4. POST Terminal-Error Beep Codes .................................................................................. 3-18 Table 3-5. POST Messages ............................................................................................................... 3-18 Table 3-6. BIOS Setup Menus and Parameters ................................................................................. 3-24 Table 4-1. OmniBook Replaceable Parts ............................................................
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Introduction This service manual provides reference information for the HP OmniBook 900. It is intended to be used by HP-authorized service personnel in the installation, servicing, and repair of these products. The manual is designed to be self-contained. It is intended that you can follow this manual without having equipment available. The following table lists additional places where you can get supplementary information about OmniBook products. Sources of OmniBook Information Source Address
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1 Product Information The HP OmniBook 900 provides desktop-quality performance and expandability in a highly portable form. It uses high-performance component technologies that make it capable of serving as a desktop computer that you can conveniently take anywhere. Table 1-1. OmniBook 900 Models OmniBook CPU ** Display Hard Drive Floppy Drive CD-ROM Standard Product * Drive RAM F1711x Pentium II 12.1-inch 4 GB 1.44 MB None 32 MB 300 MHz SVGA TFT (none) (F1472A) F1712x Pentium II 6 GB 366 MHz
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Table 1-2. Product Comparisons OmniBook 900 OmniBook 7150 OmniBook 4150 OmniBook 2100 Processor * Intel Pentium III (500 Pentium II (300 MHz). Pentium II (300 to 400 Pentium II (233 to 300 or 450 MHz), or MHz). MHz), or Pentium (233 Pentium II (300 to 400 or 200 MHz). MHz). Memory 64 or 32 MB RAM on 64 MB RAM in system 128 or 64 MB RAM in 32 MB RAM on motherboard. slot. slot. motherboard. Expandable to Expandable to Expandable to Expandable to 160, 160 MB. 320 MB. 256 MB. 192, or 288 MB. Displa
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Features and Operation The following three illustrations point out the main external features of the computer. They are followed by highlights of the computer’s operation. For an internal, exploded view, see page 4-2. Latch Microphone Keyboard status lights Power button Pointing stick Touch pad AC adapter socket External module bay connector Click buttons (above and below PC Card slots the touch pad) PC Card eject buttons Figure 1-1. OmniBook - Front View PS/2 port Battery System-off button
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Turning the OmniBook On and Off • On. Press the blue power button to turn on the OmniBook. • Standby. The display turns off automatically if the computer is inactive for about 2 minutes. • Suspend. Click Start, Suspend (Windows 95) or Start, Shut Down, Standby (Windows 98 or 2000), or press the blue power button briefly (about 1 second) to suspend activity when the OmniBook is on. When you turn on the computer, it resumes your previous work session. Closing the lid (for more than 2 seconds)
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Checking the Status of the OmniBook The main OmniBook status lights, located at the front-right edge of the display bezel at the top of the display, indicate power status and drive activity. (These lights are on the motherboard.) Table 1-4. Main Status Lights (Motherboard) Meaning Power mode Steady green light: OmniBook is running (On mode). Steady orange light: OmniBook is suspended (Suspend or Standby mode). No light: OmniBook is off (Off or Hibernate mode). Green and orange light
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Using Fn Hot Keys The Fn key combined with another key is a hot key—a shortcut key sequence for various system controls. For an external keyboard, CTRL+ALT is normally equivalent to the Fn key. Table 1-6. Fn Hot Keys Hot Key Effect Fn + F1 Decreases the display’s brightness. Fn + F2 Increases the display’s brightness. Fn + F5 Switches among the built-in display, an external display, and simultaneous displays. Fn + F7 Toggles audio output on and off (mute). Fn + F8 Toggles the embedded keypad on
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System Resources The tables in this section show typical resource usage as set up by the OmniBook BIOS. Plug-and- play operating systems, drivers, and BIOS Setup settings may change some of the entries. To see other, non-default possibilities, use the BIOS Setup utility (see page 3-24), which lists port and audio device configurations in the System Devices menu. Table 1-7. System Interrupts 0 System timer 1 Keyboard 2 Cascade IRQ 9 3 Free (or COM2 infrared port, if enabled) 4 COM1 (serial port
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Table 1-9. System Input/Output Addresses (100-3FF) 120-127 Audio (OmniBook 900† only) 170-177 Internal CD-ROM drive (secondary IDE controller) 1F0-1F7 Internal hard disk (primary IDE controller) 220-22F Audio 376 Internal CD-ROM drive (secondary IDE controller) 378-37F LPT1 (printer port) 388-38B Audio 3B0-3BB Video adapter 3C0-3DF Video adapter 3E0-3E1 PCMCIA controller 3F0-3F5 Floppy controller 3F6 Internal hard disk (primary IDE controller) 3F7 Floppy controller 3F8-3FF COM1 (serial port) †
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Specifications The following tables list descriptions for the OmniBook and its accessories. Table 1-11. OmniBook 900 Specifications Physical Attributes Models with 12-inch display Notebook size: 11.8 x 8.8 x 1.26 in (30.0 x 22.5 x 3.2 cm). Notebook weight: 4 lb (1.8 kg). Models with 13-inch display Notebook size: 11.9 x 9.3 x 1.4 in (30.4 x 23.7 x 3.5 cm). Notebook weight: 4.3 lb (1.9 kg). Processor and 500-MHz or 450-MHz Intel Mobile Pentium III processor, or |400-MHz, 366-MHz or 300-MHz Intel
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FDD/IDE interface for external module bay. Input/Output Universal serial bus (USB). 9-pin, 115,200-bps serial (16550 UART). 25-pin bi-directional ECP/EPP parallel. Video-out (Resolution: up to 1280×1024×256 colors, or up to 1600×1200×64K colors for Omnibook 900B. Refresh rate: 60 to 85 Hz.) PS/2 keyboard/mouse. 4-Mbps IrDA-compliant infrared port. Expandability One Type III or two Type II 16-/32-bit PC Card slots (3.3- and 5-V support). CardBus enabled. External plug-in module bay for accessory
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Table 1-12. OmniBook 900 Accessories Accessory Description OmniBook Compatibility 900B 900† 4150 2100/7100 Memory F1456A 32-MB SDRAM (66 MHz) expansion module •• • F1457A 64-MB SDRAM (66 MHz) expansion module •• • F1622A 128-MB SDRAM (66 MHz) expansion module •• • F1456B 32-MB SDRAM (100 MHz) expansion module •• • • F1457B 64-MB SDRAM (100 MHz) expansion module •• • • F1622B 128-MB SDRAM (100 MHz) expansion module •• • • Hard Drives F1707A 6-GB internal hard disk drive • F1744B 12-GB internal h
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Accessory Description OmniBook Compatibility 900B 900† 4150 2100/7100 F1761B MPEG DVD decoder PC Card •• • TCM3C589 10-Mbps Ethernet PC Card by 3Com •• • • Docks F1451A Port replicator (tray: page 4-7) •• • • F1452A Mini dock (tray: page 4-7) •• • • F1453A Monitor stand (short) for F1451A and F1452A •• • • F1468A Docking module bay adapter •• • F1477A Docking system and monitor stand (tall) (tray: •• • • page 4-7) † Models called 900† in this manual have no marking in the serial number, whereas
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Internal Design The motherboard PCA is the central component of the OmniBook design. It plays a role in virtually all system functions. The CPU module and most other subsystems connect to the motherboard. The following figure shows the connections among the replaceable electrical modules. As a substitute for a functional block diagram, see the table on page 1-14—it lists the roles that the replaceable modules play in each of the functional subsystems. LCD Module Top Case External Touch (microp
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Table 1-13. Functional Structure CPU module Main processor. Bootup Motherboard Primary system circuitry. BIOS IC Code for basic system functions. Floppy disk module First source of disk-based startup code. Hard disk drive Second source of disk-based startup code. Processor CPU module Main processor, numeric data processor, L1 and L2 cache. Motherboard Primary system circuitry. Motherboard First 32 MB of RAM, video RAM. Memory RAM board Changeable RAM. Battery Power storage. Power Motherboard AC
