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HP OmniBook 4100
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..................................................................................................................1-2 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....................................................................................................1-2 Figure 1-2. OmniBook - Side View .....................................................................................................1-2 Figure 1-3. OmniBook - Rear View.....................................................................................................1-3 Figure 1-4. Replaceable Module Diagram .........................................
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Table 3-2. Troubleshooting Suggestions..............................................................................................3-5 Table 3-3. OmniBook Diagnostic Error Codes..................................................................................3-14 Table 3-4. POST Terminal-Error Beep Codes...................................................................................3-17 Table 3-5. POST Messages..................................................................................
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Introduction This service manual provides reference information for the HP OmniBook 4100. It is intended to be used by HP-authorized service personnel in the installation, servicing, and repair of these products. The manual is designed as a self-paced guide. It is intended to train you to install, configure, and repair OmniBook computers. You can follow this manual without having equipment available. The following table lists additional places where you can get supplementary information about Om
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1 Product Information The HP OmniBook 4100 provides desktop performance and expandability as well as convenient portability. It uses high-performance component technologies that make it capable of replacing a desktop computer or serving as a portable multimedia presentation tool. Table 1-1. OmniBook 4100 Models OmniBook CPU ** Display Hard Drive Floppy Drive CD-ROM Standard Product * Drive RAM F1462N Pentium II 13.3-inch 4.0 GB 1.44 MB CD-ROM 32 MB F1462W 233 MHz XGA TFT (F1467A) (F1472A) (F14
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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 Main status lights Keyboard status lights Microphone Power button Pointing stick Touch pad Speaker PC Card slots PC Card eject buttons Click buttons (above and below Audio jacks the touch pad) AC adapter socket Module latch Mute button Speaker Figure 1-1. OmniBook - Fro
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Infrared port Kensington Parallel Serial VGA Docking lock slot port port out port Figure 1-3. OmniBook - Rear View Table 1-2. Product Comparisons OmniBook 7100 OmniBook 4100 OmniBook 2100/3100 OmniBook 3000 Processor * Intel Pentium II (266 Intel Pentium II (266 Intel Pentium (266, 233, Intel Pentium (266, MHz), with MMX or 233 MHz), or or 200 MHz), with MMX 233, or 200 MHz), technology. Pentium (266 MHz), technology. with MMX technology. 512-KB burst- with MMX technology. 512-KB burst- 512-
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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 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) also suspends the computer. • Hibernate. Press Fn+
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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 LED strip cable.) Table 1-4. Main Status Lights (LED Strip Cable) 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). Alternating gr
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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 + F3 Decreases the display’s contrast (non-TFT displays only). Fn + F4 Increases the display’s contrast (non-TFT displays only). Fn + F5 Switches among the built-in display, an
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System Resources Below are default values for system resources. To see other, non-default possibilities, use the BIOS Setup utility (see page 3-23), which lists port and audio device configurations in the System Devices menu. 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. Table 1-7. System Interrupts 0 System timer 1 Keyboard 2 Cascade IRQ 9 3 Free (or COM2
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Table 1-9. System Input/Output Addresses (100-3FF) 170-177 Internal CD-ROM drive (secondary IDE controller) 1F0-1F7 Internal hard disk (primary IDE controller) 220-22F Crystal sound 376 Internal CD-ROM drive (secondary IDE controller) 378-37F LPT1 (printer port) 388-38B Sound 3B0-3BB VGA adapter 3C0-3DF VGA adapter 3E0-3E1 PCMCIA controller 3F0-3F5 Floppy controller 3F6 Internal hard disk (primary IDE controller) 3F7 Floppy controller 3F8-3FF COM1 (serial port) Table 1-10. DMA Channels 0 Sound
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Specifications The following tables list descriptions for the OmniBook and its accessories. Table 1-11. OmniBook 4100 Specifications Physical Attributes Size: 330.5mm×256.9mm×35-36.5mm (13.0"×10.1"×1.3-1.4"). Weight: 2.92 kg (6.45 lb). Processor and 233/266-MHz Intel Pentium II processor with MMX technology. –or– Bus Architecture 266-MHz Intel Pentium processor with MMX technology. 1.6-V core, 2.5-V external, low-power processor. 32-KB (16-KB instruction, 16-KB data) L1 cache. 512-KB pipeline-b
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Preinstalled Software Microsoft Windows 95 or Windows NT 4.0. Windows 95-compatible Plug-and-Play. Windows NT 4.0 APM and PC Card Plug-and-Play. Advanced Power Management (APM 1.2). DMI 2.0 with HP TopTools 2.6. McAfee Virus Scan 3.1.5. Online documentation. OmniBook Recovery CD-ROM included. Centralized worldwide BIOS and driver update service. Security Features User and administrator passwords. System, hard drive, and docking passwords. PC identification displayed at boot. DMI-accessible elect
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Table 1-12. OmniBook 4100 Accessories OmniBook 4100-Only Accessories F1474A 24X CD-ROM drive module. F1472A Floppy drive module. F1473A Floppy drive cable for external use. F1466A Lithium-ion battery (primary and secondary). F1467A 4.0-GB internal hard disk drive. F1475A 6.4-GB internal hard disk drive. F1470A LS-120 SuperDisk drive module. OmniBook 7100, 4100, 3100, 2100 Accessories F1477A Docking system and monitor stand (tall). F1452A Mini dock. F1451A Port replicator.
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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 (MMO) 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 1-13—it lists the roles the replaceable modules play in each of the functional subsystems. LCD Module Inverter PCA (microphone) LED
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Table 1-13. Functional Structure CPU module Main processor (MMO). 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. Memory RAM board Optional, additional RAM. VGA PCA Video RAM. Power Battery Power
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