HP omnibook 4100, omnibook 4150 schematic

HP OmniBook 4100/4150

Service Manual

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 liable for any errors or for incidental or consequential damages in connection with the furnishing, performance, or use of this manual or the examples herein.

Consumer transactions in Australia and the United Kingdom: The above disclaimers and limitations shall not apply to Consumer transactions in Australia and the United Kingdom and shall not affect the statutory rights of Consumers.

© Copyright Hewlett-Packard Company 1998, 1999. All rights reserved. Reproduction, adaptation, or translation of this manual is prohibited without prior written permission of Hewlett-Packard Company, except as allowed under the copyright laws.

The programs that control this product are copyrighted and all rights are reserved. Reproduction, adaptation, or translation of those programs without prior written permission of Hewlett-Packard Co. is also prohibited.

Portions of the programs that control this product may also be copyrighted by Microsoft Corporation, SystemSoft Corp., Crystal Semiconductor Corporation, Phoenix Technologies, Ltd., ATI Technologies Inc., and NeoMagic, Inc. See the individual programs for additional copyright notices.

Microsoft, MS, MS-DOS, Windows and Windows NT are registered trademarks of Microsoft Corporation. Pentium and the Intel Inside logo are U.S. registered trademarks and MMX is a U.S. trademark of Intel Corporation. TrackPoint is a U.S. registered trademark of International Business Machines.

All certifications may not be completed at product introduction. Check with your HP reseller for certification status.

This equipment is subject to FCC rules. It will comply with the appropriate FCC rules before final delivery to the buyer.

Hewlett-Packard Company Mobile Computing Division 19310 Pruneridge Ave. Cupertino, CA 95014, U.S.A.

Edition History

Edition 1............................April 1998

Edition 2........................October 1998

Edition 3........................January 1999

Edition 4....................September 1999

ii HP OmniBook 4100/4150

Contents

Product Information......................................................................................................1-1

Features and Operation.................................................................................................................1-3

Turning the OmniBook On and Off....................................................................................... 1-4

Checking the Status of the OmniBook................................................................................... 1-5

Using Fn Hot Keys.................................................................................................................1-6

Resetting the OmniBook........................................................................................................ 1-6

System Resources.................................................................................................................. 1-7

Specifications................................................................................................................................ 1-9

Internal Design............................................................................................................................ 1-14

Removal and Replacement............................................................................................2-1

Removing the Battery or Plug-In Module (User-Replaceable)..................................................... 2-3

Removing a RAM Board (User-Replaceable)............................................................................. 2-4

Removing the Hard Disk Drive (User-Replaceable).................................................................... 2-5

Replacing Small Parts (User-Replaceable)................................................................................... 2-8

Removing the Keyboard (HP Authorized Service Providers Only)............................................. 2-9

Removing the Display Assembly (HP Authorized Service Providers Only).............................. 2-11

Removing the LCD Module (HP Authorized Service Providers Only)......................................2-13

Removing the Top Case (HP Authorized Service Providers Only)............................................ 2-16

Removing the CPU Module (HP Authorized Service Providers Only)...................................... 2-19

Removing the Motherboard or Bottom Case (HP Authorized Service Providers Only)............ 2-24

Removing or Repairing the BIOS IC (HP Authorized Service Providers Only)........................ 2-29

Removing Other Components (HP Authorized Service Providers Only)...................................2-31

Troubleshooting and Diagnostics..................................................................................3-1

Troubleshooting............................................................................................................................ 3-2

Troubleshooting the Problem................................................................................................. 3-2

Verifying the Repair ..............................................................................................................3-3

Suggestions for Troubleshooting........................................................................................... 3-4

Diagnostic Tools......................................................................................................................... 3-13

OmniBook Diagnostic Program........................................................................................... 3-13

Power-On Self-Test ............................................................................................................. 3-20

Sycard PCCtest 450 CardBus Card (Optional).................................................................... 3-23

Desktop Management Interface (DMI)................................................................................ 3-24

BIOS Setup Utility............................................................................................................... 3-26

Replaceable Parts...........................................................................................................4-1

Reference Information...................................................................................................5-1

Password Removal Policy............................................................................................................ 5-1

Hewlett-Packard Display Quality Statement................................................................................ 5-2

Service Notes and Obsolete Parts................................................................................................. 5-6

HP OmniBook 4100/4150 iii

Figures

Figure 1-1. OmniBook - Front View....................................................................................................1-3

Figure 1-2. OmniBook - Side View .....................................................................................................1-3

Figure 1-3. OmniBook - Rear View.....................................................................................................1-4

Figure 1-4. Replaceable Module Diagram.........................................................................................1-14

Figure 2-1. Removing the Battery or Plug-In Module..........................................................................2-3

Figure 2-2. Removing a RAM Board...................................................................................................2-4

Figure 2-3. Removing the Hard Disk Drive.........................................................................................2-5

Figure 2-4. Installing a Hard Drive in the Cover..................................................................................2-6

Figure 2-5. Removing the Keyboard....................................................................................................2-9

Figure 2-6. Removing the Display .....................................................................................................2-11

Figure 2-7. Removing the LCD Module ............................................................................................2-15

Figure 2-8. Removing the Top Case...................................................................................................2-17

Figure 2-9. Removing the CPU (OmniBook 4150†)..........................................................................2-21

Figure 2-10. Inserting the CPU (OmniBook 4100/4150†).................................................................2-22

Figure 2-11. Positioning Thermal Pads..............................................................................................2-23

Figure 2-12. Removing the Motherboard...........................................................................................2-26

Figure 2-13. Installing Docking Doors and Module Latch.................................................................2-28

Figure 2-14. Example of Serial Number Label ..................................................................................2-28

Figure 2-15. Removing the BIOS IC..................................................................................................2-29

Figure 2-16. Boot-Block Jumper........................................................................................................2-31

Figure 3-1. Basic Troubleshooting Steps.............................................................................................3-2

Figure 3-2. OmniBook Diagnostic Screens — Basic and Advanced.................................................3-13

Figure 3-3. Serial and Parallel Loopback Connectors........................................................................3-15

Figure 4-1. Exploded View..................................................................................................................4-2

Figure 4-2. Display Components..........................................................................................................4-7

Figure 4-3. Motherboard Components.................................................................................................4-8

Tables

Table 1-1. Product Comparisons..........................................................................................................1-1

Table 1-2. OmniBook 4100/4150 Series Models.................................................................................1-2

Table 1-3. Activating Power Modes.....................................................................................................1-4

Table 1-4. Main Status Lights (LED Strip Cable)................................................................................1-5

Table 1-5. Keyboard Status Lights (VGA PCA or Motherboard)........................................................1-5

Table 1-6. Fn Hot Keys........................................................................................................................1-6

Table 1-7. System Interrupts ................................................................................................................1-7

Table 1-8. System Memory..................................................................................................................1-7

Table 1-9. System Input/Output Addresses (100-3FF).........................................................................1-8

Table 1-10. DMA Channels.................................................................................................................1-8

Table 1-11. OmniBook 4100/4150 Series Specifications....................................................................1-9

Table 1-12. OmniBook 4100/4150 Series Accessories......................................................................1-12

Table 1-13. Functional Structure........................................................................................................1-15

Table 2-1. Removal Cross-Reference...................................................................................................2-1

Table 2-2. Required Equipment...........................................................................................................2-2

Table 2-3. Recommended Screw Torques............................................................................................2-2

Table 2-4. RAM Board Replacement Part Numbers............................................................................2-4

Table 2-5. Hard Disk Drive Replacement Part Numbers.....................................................................2-5

Table 2-6. Replacing Small Parts (User-Replaceable).........................................................................2-8

Table 2-7. Display Component Compatibility....................................................................................2-13

Table 2-8. CPU Component Compatibility........................................................................................2-19

iv HP OmniBook 4100/4150

Table 2-9. Removing Display Components....................................................................................... 2-31

Table 2-10. Removing Top Case Components.................................................................................. 2-32

Table 2-11. Removing Bottom Case Components............................................................................ 2-33

Table 3-1. Scope of Diagnostic Tools................................................................................................. 3-4

Table 3-2. Troubleshooting Suggestions............................................................................................. 3-5

Table 3-3. OmniBook Diagnostic Error Codes................................................................................. 3-15

Table 3-4. POST Terminal-Error Beep Codes.................................................................................. 3-20

Table 3-5. POST Messages............................................................................................................... 3-21

Table 3-6. Sycard PCCTest Commands............................................................................................ 3-23

Table 3-7. BIOS Setup Menus and Parameters................................................................................. 3-26

Table 4-1. OmniBook Replaceable Parts ............................................................................................ 4-3

Table 4-2. Assembly-Component Breakdown..................................................................................... 4-8

Table 4-3. Accessory Replaceable Parts..............................................................................................4-9

Table 4-4. Part Number Reference.................................................................................................... 4-10

Table 5-1. OmniBook 4100/4150 LCD Guidelines (TFT).................................................................. 5-3

Table 5-2. Service Notes ..................................................................................................................... 5-6

Table 5-3. Obsolete Repair Parts......................................................................................................... 5-6

HP OmniBook 4100/4150 v

Introduction

This service manual provides reference information for the HP OmniBook 4100/4150. 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 OmniBook products.

Sources of OmniBook Information

Source Address or Number Comments

HP External Web http://www.h p.com/omnibook

(http://www.europe.hp.com/omnibook, European mirror)

HP US Reseller Web http://partner.americas.hp.com Restricted to Authorized Resellers

HP Asia Pacific Channel Support Centre for DPSP Partners

America Online Keyword: HP Call (800) 827-6364 for membership

CompuServe GO HP Call (800) 524-3388 for membership

HP Bulletin Board Service Refer to the latest Product Support

HP Support Assist CD-ROM (800) 457-1762 US and Canada.

Microsoft Web http://www.microsoft.com Information and updates for Windows

http://www.h p.com.au Restricted to DPSP Partners only.

(801) 431-1587 Outside US and Canada.

No usage restriction.

only.

within the US.

Plan for non-US BBS numbers.

operating systems.

vi HP OmniBook 4100/4150

Product Information

The HP OmniBook 4100/4150 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. Product Comparisons

OmniBook 7100/7150 OmniBook 4100/4150 OmniBook 2100/3100 OmniBook 900

Processor *

Memory

Display

Video

Operating System

Desktop Management Interface

Power Management

Power States

* Intel Mobile Pentium processor.

Intel Pentium II (300 or 266 MHz).

64 MB RAM in system slot or 32 MB RAM on motherboard. Expandable to 320 or 288 MB.

14.1-inch TFT XGA display.

AGP or PCI local bus video. 64-bit graphics controller with 4 MB external video RAM, 3Dgraphics acceleration. Up to 16M colors (XGA). Zoomed Video enabled.

Windows 95, Windows 98, or Windows NT 4.0 preinstalled.

DMI 2.0. HP TopTools 2.6 or

3.0. APM 1.2.

ACPI compliant. On, Standby, Suspend,

Hibernate, Off.

Pentium II (233 to 400 MHz), or Pentium (266 MHz).

128 or 64 MB RAM in slot or 32 MB RAM on motherboard. Expandable to 256 or 160 MB.

14.1- or 13.3-inch TFT XGA display.

AGP or PCI local bus video. 256- or 128-bit graphics controller with 8, 4, 2.5 or 2 MB internal video RAM. Up to 16M or 64K colors (XGA). Zoomed Video enabled.

Windows 95, Windows 98, or Windows NT 4.0 preinstalled.

DMI 2.0. HP TopTools 2.6 to

4.5. APM 1.2.

ACPI compliant. On, Standby, Suspend,

Hibernate, Off.

Pentium II (300, 266, or 233 MHz), or Pentium (266, 233, or 200 MHz).

32 MB RAM on motherboard. Expandable to 160, 192, or 288 MB.

13.3-inch TFT XGA display, or 12.1-inch TFT or DSTN SVGA display.

PCI local bus video. 128-bit graphics controller with 2 MB internal video RAM. Up to 64K colors (XGA), 16M colors (SVGA). Zoomed Video enabled.

Windows 95, Windows 98, or Windows NT 4.0 preinstalled.

DMI 2.0. HP TopTools 2.6 or

3.0. APM 1.2.

ACPI compliant. On, Standby, Suspend,

Hibernate, Off.

Intel Pentium II (366 or 300(PE) MHz).

32 MB RAM on motherboard. Expandable to 160 MB.

12.1-inch TFT SVGA display.

AGP video. 256-bit graphics controller with 2.5 MB internal video RAM. Up to 16M colors (XGA). Zoomed Video enabled.

Windows 95, Windows 98, or Windows NT 4.0 preinstalled.

DMI 2.0. HP TopTools 3.0.

APM 1.2. ACPI compliant.

On, Standby, Suspend, Hibernate, Off.

HP OmniBook 4100/4150 Product Information 1-1

Table 1-2. OmniBook 4100/4150 Series Models

OmniBook Product *

OmniBook 4100

F1462

F1463x*** Pentium

F1464

F1479

F1703

OmniBook 4150 Series

F1629

F1640

F1641

F1642

F1647

F1648

F1658

F1660

F1663

This table lists only base product configurations—custom configurations are not included. * For the products listed:

"x" suffix means

** Intel Mobile Pentium or Pentium II processor. *** Available only with Spring ’98 software—other OmniBook 4100 products rolled to Fall ’98 software. All

OmniBook 4150 products were released with Fall ’98 software or later.

The OmniBook 4150 Series has two classes of products with different internal designs, different software drivers, and different BIOSes. Models marked with 4150B in this manual—other OmniBook 4150 models listed in this table are called 4150† in this manual, and they have no marking after the serial number.

CPU ** Display Hard Drive Floppy Drive CD-ROM

Drive

Pentium II 233 MHz

13.3-inch XGA TFT

4 GB (F1467A)

1.44 MB (F1472A)

CD-ROM (F1474A)

Standard RAM

32 MB

14.1-inch

266 MHz Pentium II

266 MHz

XGA TFT

6 GB (F1475A)

4 GB (F1467A)

13.3-inch XGA TFT

Pentium II 300 MHz

14.1-inch XGA TFT

6 GB (F1475A)

1.44 MB (F1472A)

CD-ROM (F1474A)

64 MB (F1457A)

Pentium II 333 MHz

Pentium II 366 MHz

Pentium II 300 MHz

Pentium II 400 MHz

Pentium II 366 MHz

Pentium II 400 MHz

Pentium II 366 MHz

13.3-inch XGA TFT

14.1-inch XGA TFT

10 GB (F1744A)

4.8 GB (none)

10 GB (F1744A)

4.8 GB (none)

6 GB (F1475A)

4.8 GB (none)

DVD Drive (F1653A)

CD-ROM (F1474A)

DVD Drive (F1653A)

CD-ROM (F1474A)

128 MB (F1622A)

64 MB (F1457A)

64 MB (F1457B)

64 MB (F1457A)

"N", "NT", “NV”, “NG” for Windows NT 4.0 installed (marketing distinction only), or "W", "WT", “WV”, “WG”, “WR” for Windows 95 or Windows 95/98 installed (marketing distinction only).

have “4150 B” after the serial number and are called

1-2 Product Information HP OmniBook 4100/4150

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

Click buttons

(above and below

the touch pad)

Module latch

Speaker

AC adapter socket

Mute button

PC Card eject buttons

Audio jacks

Figure 1-1. OmniBook - Front View

Battery

PS/2 port

USB port

System-off button

Speaker

Module latch

Plug-in module bay

Figure 1-2. OmniBook - Side View

HP OmniBook 4100/4150 Product Information 1-3

Infrared

port

Kensington

lock slot

Parallel

port

Serial

port

VGA

out

Docking

port

Figure 1-3. OmniBook - Rear View

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+F12. This is like Off, except that your current work session is first saved to

disk. When you turn on the computer, it reboots and restores your previous session.

• Off. Click Start, Shut Down. If the OmniBook does not respond, press and hold the blue power

button until the display shuts down. When you turn on the computer, it reboots. Unsaved data is lost.

Table 1-3. Activating Power Modes

Power Mode To Enter Mode To Turn Back On Standby

Reduced-power/stopped state. Display is off. Everything is in a reduced-power state. Network devices are maintained. Your current work session continues at turn-on (any key or pointer action).

Suspend

Low-power/stopped state. Lower power state than Standby. Everything is off or in a low-power state. Network devices are off. Your previous work session resumes at turn-on. For plug-and-play operating systems, network connections resume at turn-on.

Hibernate

No-power/stopped state. Session is saved on the hard disk. Everything is shut down. Computer reboots at turn-on and restores previous session and network connections (if plug-and-play).

Off

No-power/stopped state. Everything is shut down (battery continues charging if ac adapter is connected). Computer reboots at turn-on and restores network connections.

Press Fn+S (not Windows 98)

–or– allow time-out.

Press blue power button for about 1 second –or– click Start, Shut Down, Standby (Windows 98) –or– click Start, Suspend (Windows 95) –or– allow time-out.

Press Fn+F12 –or– allow time-out.

Click Start, Shut Down –or– Press and hold the blue power button until the display shuts down.

Press any key or move a pointing device to display the current session ("Instant-On").

Press blue power button to display the current session ("Instant-On").

Press blue power button to restart and restore the previous session.

Press blue power button to restart with a new session.

1-4 Product Information HP OmniBook 4100/4150

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)

The keyboard status lights, located above the keyboard, indicate the states of the keyboard locks. (These lights are on the VGA PCA for the OmniBook 4100, and on the motherboard for the OmniBook 4150 Series.)

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 lights: OmniBook failed when resuming.

Drive access

Green light: OmniBook is accessing the hard disk drive, floppy disk drive, or a drive in the plug-in module bay. For the OmniBook 4100, it also indicates PC Card activity.

Charging

Steady green light: AC adapter is connected, battery is full or stopped charging. Blinking green light: AC adapter is connected, battery is charging. No light: AC adapter is not connected or battery is not present.

Table 1-5. Keyboard Status Lights (VGA PCA or Motherboard)

Meaning Caps Lock

Caps Lock is active.

Keypad Lock

The embedded keypad is active (Fn+F8 or Fn held down). Num Lock must also be

on for the numeric keys—otherwise, cursor control is active.

Num Lock

Num Lock is active.

In addition, the battery module has five lights that indicate its charge level. To view the lights, you have to remove the battery and press the pad on the back next to the connector. The number of lights that turn on indicates the charge.

HP OmniBook 4100/4150 Product Information 1-5

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 external display, and simultaneous displays. Fn + F8 Toggles the embedded keypad on and off. Does not affect an external keyboard. If

Num Lock is on, then the numeric functions are active—otherwise, cursor control is

active. Fn + F12 Enters Hibernate mode. Fn + R Enters Suspend mode. Fn + S Enters Standby mode (Windows 95, Windows NT) or Suspend mode (Windows 98). Fn + ScrLk Toggles Scroll Lock on and off. Fn + UP ARROW

Fn + DOWN ARROW

Increases and decreases the sound volume.

Resetting the OmniBook

1. Use a pen or a straightened paper clip to push the system-off button on the left side of the

OmniBook. (The switch is on the motherboard.)

–or– Press and hold the blue power button until the display shuts down. (The switch is on the

motherboard.)

2. After the computer shuts down, press the blue power button to turn it back on.

Note

The OmniBook can boot from a CD if all these conditions are true:

• You have an internal CD-ROM or DVD drive installed,

• You have a bootable CD in the drive, such as the OmniBook Recovery CD, and

• You select the CD-ROM or DVD drive as the boot device. You can do this during reboot by pressing ESC to cancel the OmniBook screen, then ESC to display the boot-device menu for a one-time selection.

1-6 Product Information HP OmniBook 4100/4150

System Resources

Below are default values for system resources. To see other, non-default possibilities, use the BIOS Setup utility (see page 3-26), 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-andplay 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 infrared port, if enabled) 4 COM1 (serial port) 5 Audio 6 Floppy drive 7 LPT1 (ECP parallel port) 8 Real-time clock 9 Free (OmniBook 4100/4150B)

Video (OmniBook 4150†)

10 USB and CardBus - assigned by Windows driver

Video Controller (OmniBook 4150B) 11 Free 12 Pointing device 13 Numeric data processor 14 Internal hard disk (primary IDE controller) 15 Internal CD-ROM drive (secondary IDE controller) † Models called 4150† in this manual have no marking in the serial number,

whereas models called 4150B have 4150 B after the serial number.

Table 1-8. System Memory

00000 - 9FFFF System memory A0000 - BFFFF Video C0000 - CBFFF

C0000 - CFFFF CC000 - DBFFF*

D0000 - DBFFF* DC000*- FFFFF System BIOS * Approximate boundary. ** Valid uses for memory addresses CC000-DBFFF or D0000-DBFFF:

Upper memory blocks (UMBs). PC card memory windows.

† Models called 4150† in this manual have no marking in the serial number,

whereas models called 4150B have 4150 B after the serial number.

Video BIOS (OmniBook 4100/4150†) Video BIOS (OmniBook 4150B)

Free** (OmniBook 4100/4150†) Free** (OmniBook 4150B)

HP OmniBook 4100/4150 Product Information 1-7

Table 1-9. System Input/Output Addresses (100-3FF)

120-127 Audio (OmniBook 4150† 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 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) † Models called 4150† in this manual have no marking in the serial number,

whereas models called 4150B have 4150 B after the serial number.

Table 1-10. DMA Channels

0 Sound record (OmniBook 4100/4150†)

Free (OmniBook 4150B) 1 Sound playback 2 Floppy drive 3 LPT1 (ECP parallel port) 4 Cascade 5 Free 6 Free 7 Free † Models called 4150† in this manual have no marking in the serial number,

whereas models called 4150B have 4150 B after the serial number.

1-8 Product Information HP OmniBook 4100/4150

Specifications

The following tables list descriptions for the OmniBook and its accessories.

Table 1-11. OmniBook 4100/4150 Series Specifications

Physical Attributes

Processor and Bus Architecture

Graphics

Power

Mass Storage

RAM OmniBook 4150† or 4150B:

Size: 330.5mm×256.9mm×35-36.5mm (13.0"×10.1"×1.3-1.4"). Weight: 2.92-2.99 kg (6.45-6.60 lb.).

300/333/366/400 MHz Pentium II processor with internal 256 KB 4-way, setassociative L2 cache. –or– 233/266/300-MHz Intel Pentium II, or 266-MHz Intel Pentium processor with 512-KB pipeline-burst-synchronous L2 cache.

1.6- to 1.8-V core, 2.5-V external, low-power processor. 32-KB (16-KB instruction, 16-KB data) L1 cache. 32-bit PCI bus.

14.1- or 13.3-inch XGA active-matrix (TFT) display. Zoomed Video support for lower PC Card slot.

OmniBook 4150B:

ATI Mobility-M or -M1 graphics accelerator with 4- or 8-MB video RAM (1024 × 768 × 16M colors). 2X AGP graphics capability.

OmniBook 4150†:

256-bit NeoMagic MagicGraph graphics accelerator with 2.5-MB video RAM (1024

× 768 × 16M colors). 1X AGP graphics capability.

OmniBook 4100:

128-bit NeoMagic MagicGraph graphics accelerator with 2-MB video RAM (1024 × 768 × 64K colors). Zoomed Video support for both PC Card slots.

Rechargeable 9-cell lithium ion battery with LED charge-level gauge (10.8 Vdc,

4.2 AH or more, 45 watt-hours or more). Battery life (one battery): up to 3-4 hours typical (varies with type of usage and model). Fast battery recharge: 80% in 1.5-2 hours, 100% in 2-2.5 hours. Low-battery warning. Suspend/resume capability. 60-watt ac adapter: 100 to 240 Vac (50 to 60 Hz) input, 19 Vdc, 3.16 A output.

4, 6, or 10 GB removable hard drive. Standard 1.44-MB floppy drive module. Standard 24X CD-ROM drive module or DVD drive module. Optional LS-120 SuperDisk module. Optional DVD drive. Optional 10 GB second hard drive module.

128 MB or 64 MB SDRAM in first RAM slot. Two total slots for RAM expansion up to 256 MB (using 128 MB modules). 66 MHz RAM bus, or 100 MHz RAM bus for OmniBook 4150B.

OmniBook 4100:

32-MB SDRAM on motherboard. One slot for RAM expansion up to 160 MB. 66 MHz RAM bus.

HP OmniBook 4100/4150 Product Information 1-9

Audio System

Keyboard and Pointing Device

Input/Output

Expandability

Preinstalled Software

Security Features

Environmental Limits

16-bit, Sound Blaster Pro-compatible. SRS 3D enhanced audio. Stereo sound via two built-in speakers. Built-in microphone. Line-in, headphone-out, and microphone-in.

87/88-key touch-type QWERTY keyboard with 101/102 key emulation. Embedded numeric keypad. 12 function (Fn) keys. Two pointing devices: pointing stick (technology licensed from IBM) and touch pad.

FDD/IDE interface for external module bay. Universal serial bus (USB). 9-pin, 115,200-bps serial (16550 UART). 25-pin bi-directional ECP/EPP parallel.

Video-out (up to 1024×768×64K colors, or up to 1600×1200×64K or 16M colors for OmniBook 4150B. Refresh rate 60 to 85-Hz). Dual display. PS/2 keyboard/mouse. 4-Mbps IrDA-compatible infrared port.

One Type III or two Type II 16-/32-bit PC Card slots (3.3- and 5-V support). CardBus enabled. Plug-in module bay for accessory modules. Optional port replicator, mini dock, and docking system.

Microsoft Windows 95, Windows 98, or Windows NT 4.0. Windows 95/98-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 to 4.5 DiagTools. Agate Tioman for HP (Hot Swap). Adobe Acrobat Reader. Virus Scan software. Online documentation. OmniBook Recovery CD-ROM included. Centralized worldwide BIOS and driver update service.

User and administrator passwords. System, hard drive, and docking passwords. PC identification displayed at boot. DMI-accessible electronic serial number. Kensington Microsaver lock slot.

Operating temperature: 5 to 35 °C (41 to 95 °F). Operating humidity: 20 to 90 percent RH (5 to 35 °C). Storage temperature: –20 to 50 °C (–4 to 122 °F).

1-10 Product Information HP OmniBook 4100/4150

Major ICs OmniBook 4150B:

CPU: Intel Mobile Pentium II. South Bridge: PIIX4M. Video: ATI Mobility-M or -M1. Audio: ESS ES1978 Maestro-2E and ESS ES1921. CardBus: TI PCI 1225. Keyboard controller: National PC87570. Super I/O: SMC 869.

OmniBook 4150†:

CPU: Intel Mobile Pentium II. South Bridge: PIIX4E. Video: NeoMagic MagicGraph NM2200 (NMG5). Audio: NeoMagic MagicGraph NM2200 (NMG5) and NeoMagic Audio MNA2. CardBus: TI PCI1220A. Keyboard controller: National PC87570. Super I/O: SMC 769.

OmniBook 4100:

CPU: Intel Mobile Pentium or Pentium II. South Bridge: PIIX4E. Video: NeoMagic MagicGraph NM2160 (NMG4). Audio: Crystal CS4237B. CardBus: TI PCI1250A. Keyboard controller: National PC87570. Super I/O: SMC 769.

† Models called 4150† in this manual have no marking in the serial number, whereas models called 4150B

have 4150 B after the serial number.

HP OmniBook 4100/4150 Product Information 1-11

Table 1-12. OmniBook 4100/4150 Series Accessories

Accessory Description OmniBook Compat.

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

F1467A 4-GB internal hard disk drive F1475A 6-GB internal hard disk drive F1744A 10-GB internal hard disk drive

Modules

F1465A/B DVD drive module (with DVD player card) F1470A LS-120 SuperDisk drive module F1472A Floppy drive module F1473A Floppy drive cable for external use F1474A 24X CD-ROM drive module F1653A/B 4X DVD drive module F1746A 10-GB second hard drive module

Power Options

F1454A 60-watt ac adapter F1455A 75-watt auto/airline power adapter F1466A Lithium-ion battery (primary and secondary) F1620A Battery charger (external) 8120-6312

8120-6313 8120-6314 8120-6316 8120-6317 8120-8367 8120-8373 8120-8452 8120-8699

Adapters

F1469A PS/2 Y adapter

PC Cards

F1623A 10/100-Mbps Ethernet + 56-Kbps modem PC Card by F1625A 56-Kbps global modem PC Card by Xircom

F1626A 10/100-Mbps Ethernet PC Card by 3Com F1627A 56-Kbps US modem PC Card by Xircom F1643A Realport 10/100-Mbps Ethernet + 56-Kbps modem PC

Replacement power cord (Australia) Replacement power cord (U.S., Canada, Taiwan) Replacement power cord (Europe) Replacement power cord (Japan) Replacement power cord (India, South Africa) Replacement power cord (Argentina)

Replacement power cord (People’s Republic of China) Replacement power cord (Chile) Replacement power cord (Hong Kong,Singapore,U.K.)

Xircom

Card by Xircom

4150B 4150

••• •

•••

••

•••

••

••• •

•••

••• •

†

4100 2100/7100

•• •

••

1-12 Product Information HP OmniBook 4100/4150

Docks

F1451A Port replicator F1452A Mini dock F1453A Monitor stand (short) for F1451A and F1452A F1468A Docking module bay adapter F1477A Docking system and monitor stand (tall)

† Models called 4150† in this manual have no marking in the serial number, whereas models called 4150B

have 4150 B after the serial number.

••• •

•••

••• •

HP OmniBook 4100/4150 Product Information 1-13

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 1-15—it lists the roles that the replaceable

modules play in each of the functional subsystems.

LCD Module

Keyboard cable connects to VGA PCA (OmniBook 4100) or motherboard (OmniBook 4150 Series).

Keyboard

(pointing stick)

Fan

CPU

Module

RAM

Board

Speaker Speaker

BIOS

Plug-In

Module

or Battery

LVDS

PCA

VGA PCA

Motherboard

PCA

Inverter PCA

(microphone)

Top Case

(touch pad support)

PCMCIA

Socket

Hard Disk

Drive

Main

Battery

LED Strip

PCA

DC-DC

PCA

PCMCIA

Cards

Audio Jack

PCA

LVDS PCA is not present in the OmniBook 4150B.

The BIOS IC is not removable on the OmniBook 4150 Series.

Two RAM slots are available on the OmniBook 4150 Series.

The power switch and lid switch are contained on the motherboard.

All external connections (except IR and audio) are made to the motherboard.

Figure 1-4. Replaceable Module Diagram

1-14 Product Information HP OmniBook 4100/4150

Table 1-13. Functional Structure

Bootup

Processor

Memory

Power

Display

Hard disk

Floppy drive

Keyboard

Pointer

Audio

Status

Serial Parallel Infrared

PS/2 port USB Docking port PCMCIA

† Models called 4150† in this manual have no marking in the serial number, whereas models called 4150B

have 4150 B after the serial number.

CPU module Motherboard BIOS IC Floppy disk module Hard disk drive

CPU module Motherboard

Motherboard RAM board VGA PCA

Battery Motherboard

DC-DC PCA AC adapter

Motherboard LCD module Inverter PCA LVDS PCA VGA PCA

Motherboard Hard disk drive

Motherboard Floppy disk module

Motherboard BIOS IC Keyboard

Motherboard BIOS IC Keyboard Top case

Motherboard VGA PCA

Audio jack PCA Inverter PCA Speakers

Motherboard LED strip cable VGA PCA

Motherboard I/O controller, serial connector. Motherboard I/O controller, parallel connector. Motherboard

IR PCA Motherboard Keyboard controller, PS/2 connector. Motherboard Bus controller (South Bridge), USB connector. Motherboard Docking logic, docking connector. Motherboard

PCMCIA socket

Main processor (MMO). Primary system circuitry. Code for basic system functions (part of motherboard on OB 4150). First source of disk-based startup code. Second source of disk-based startup code.

Main processor, numeric data processor, L1 and L2 cache. Primary system circuitry.

No onboard RAM (OB 4150), or first 32 MB of RAM (OB 4100). Changeable RAM (1 slot on OB 4100, 2 slots on OB 4150). Video RAM.

Power storage. AC adapter socket, power switch, lid switch, system-off switch, power supply. Power control circuitry. AC-to-dc converter.

PCMCIA/zoomed video controller. Display output, backlight. Power converter for backlight. Display drivers, LVDS processing (OB 4100/4150†).

Display/graphics controller, video RAM (OB 4150B: LVDS processing). Hard disk controller.

Hard disk mechanism. I/O controller, floppy connector.

Floppy disk mechanism. Keyboard controller.

Keyboard BIOS (part of motherboard on OB 4150). Key switches.

Keyboard controller, pointing stick controller (PS/2 output). Keyboard BIOS (part of motherboard on OB 4150). Pointing stick sensor. Touch pad sensor, controller (PS/2 output).

Audio controller (OB 4100/4150B), audio decoder, speaker amplifier, headphone amplifier, zoomed video controller, mute switch. Audio controller (OB 4150†). External audio jacks. Microphone. Speakers.

Keyboard controller, plus keyboard LEDs (OB 4150). Main LEDs. Keyboard LEDs (OB 4100).

I/O controller. Infrared transmitter/receiver.

PCMCIA controller. PCMCIA connectors.

HP OmniBook 4100/4150 Product Information 1-15

Removal and Replacement

This chapter tells you how to remove and replace the following components and assemblies. The ones marked by

Air vent cover (table on page 2-33). Audio jack cover (table on page 2-33). Audio jack PCA (table on page 2-33).

• Battery (page 2-3). BIOS IC (page 2-28). Bottom case (page 2-19). Cable holder (table on page 2-31). CPU bottom plate (table on page 2-33). CPU module (page 2-13). CPU top plate (table on page 2-33). DC-DC PCA (table on page 2-33). Display bezel (table on page 2-31). Display case (table on page 2-31). Display latch (table on page 2-31).

• Docking door (table on page 2-8). End cap (table on page 2-31). Fan (table on page 2-33).

• Foot (table on page 2-8). Frame (table on page 2-33).

• Hard disk drive (page 2-5). Heatsink parts (table on page 2-33). Hinge (table on page 2-31).

• Hinge cover (table on page 2-8).

• are user-replaceable.

Table 2-1. Removal Cross-Reference

Inverter PCA (table on page 2-31).

• I/O door (table on page 2-8). IR PCA (table on page 2-33). Keyboard (page 2-9). LCD brackets (table on page 2-31). LCD flex cable (table on page 2-31). LCD module (page 2-13). LCD shield (table on page 2-31). LED strip cable (table on page 2-31). LVDS PCA (table on page 2-33). Module latch (table on page 2-33). Motherboard (page 2-19). PCMCIA socket (table on page 2-33).

• Plug-in module (page 2-3).

• RAM board (page 2-4).

• RAM/BIOS cover (table on page 2-8). Speaker cover (table on page 2-33). Speaker (table on page 2-33). Spring, grounding (table on page 2-33). Strip cover (table on page 2-32). Top case (page 2-16).

• VGA connector cover (table on page 2-8). VGA PCA (table on page 2-33).

Caution

Always provide proper grounding when performing repairs. Without proper grounding, an electrostatic discharge may damage the OmniBook and its components.

HP OmniBook 4100/4150 Removal and Replacement 2-1

Notes

Reassembly steps are the reverse of the removal steps. Reassembly notes are included at the end of each section below.

Symbols like this throughout this chapter show approximate full-size screw outlines. You

can use them to verify the sizes of screws before you install them. Installing a wrong-size screw

can damage the unit. (The symbol at the left represents an M2.5×5mm T-head screw.)

Table 2-2. Required Equipment

• Small Phillips screwdriver, preferably magnetized.

• 5 mm hex driver.

• Pointed knife or probe.

• Small flat-blade screwdriver.

• IC (PLCC) removal tool (similar to OK Industries EX-5).

• OmniBook 4150† CPU removal tool (HP part number T-335665).

Table 2-3. Recommended Screw Torques

Screw Thread Size Torque (kgf•cm) Torque (lbf•in)

M2 1.3 – 1.8 1.1 – 1.5

M2.5 (4–5 mm long) 3.0 – 3.5 2.6 – 3.0

M2.5 (16–19 mm long) 2.5 – 3.0 2.2 – 2.6

M3 3.0 – 3.5 2.6 – 3.0

2-2 Removal and Replacement HP OmniBook 4100/4150

Removing the Battery or Plug-In Module

(User-Replaceable)

Required Equipment

• None.

Removal Procedure

1. Unplug the ac adapter, if present.

2. Slide forward the module latch slider on the corner next to the module, then swing back the latch

to loosen the module.

3. Pull out the module.

4. Slide the latch back into the case.

Figure 2-1. Removing the Battery or Plug-In Module

Reassembly Notes

• Important: You must slide the latch forward before you can insert a module.

• You can install a battery in either bay. Any other type of module must be installed in the left bay.

HP OmniBook 4100/4150 Removal and Replacement 2-3

Removing a RAM Board

(User-Replaceable)

The OmniBook 4100 has 32 MB of RAM on the motherboard and has one RAM slot for installing additional RAM. The OmniBook 4150 Series has no RAM on the motherboard and has two RAM slots for installing RAM.

Table 2-4. RAM Board Replacement Part Numbers

Description Part Number Exchange OmniBook

Part Number 4150B 4150† 4100

RAM board, 32-MB SDRAM (66 MHz) 1818-7413 F1456-69001 RAM board, 64-MB SDRAM (66 MHz) 1818-7414 F1457-69001 RAM board, 128-MB SDRAM (66 MHz) 1818-7549 F1622-69001 RAM board, 32-MB SDRAM (100 MHz) 1818-7950 RAM board, 64-MB SDRAM (100 MHz) 1818-7951 RAM board, 128-MB SDRAM (100 MHz) 1818-7952

† Models called 4150† in this manual have no marking in the serial number, whereas models called

4150B have 4150 B after the serial number.

Caution

Handle the RAM board only by its edges and provide proper grounding. Otherwise, you may damage the board due to electrostatic discharge.

•••

••

Required Equipment

• Small Phillips screwdriver.

Removal Procedure

1. Unplug the ac adapter, if present, and remove the battery.

2. Turn the unit bottom side up, then remove the two screws from the RAM/BIOS cover and remove

the cover.

3. Release the two latches at the sides of the RAM board, so the free edge of the board pops up.

4. Pull the board out of the connector.

Note:

OmniBook 4100 shown. For the OmniBook 4150 Series, there are two RAM slots (with no RAM built into the motherboard).

Figure 2-2. Removing a RAM Board

2-4 Removal and Replacement HP OmniBook 4100/4150

Reassembly Notes

• Insert the RAM board into the connector at about a 30° angle until it is fully inserted. Then press

down at both sides until both latches snap closed.

Removing the Hard Disk Drive

(User-Replaceable)

Table 2-5. Hard Disk Drive Replacement Part Numbers

Description Part Number Exchange OmniBook

Part Number 4150B 4150† 4100

Drive, hard disk (4.0GB, 12.7mm, IBM) 0950-2671 F1386-69100 Drive, hard disk (4.0GB, 12.7mm, Toshiba) 0950-2865 F1386-69101 Drive, hard disk (4.3GB, 9.5mm, IBM) 0950-3409 F1711-69100 Drive, hard disk (4.8GB, 9.5mm, IBM) * 0950-3611 F1711-69102 Drive, hard disk (6.4GB, 9.5mm, IBM) * 0950-3442 F1711-69101 Drive, hard disk (6.4GB, 12.7mm, IBM) 0950-2785 F1475-69100 Drive, hard disk (6.4GB, 8.4mm, Toshiba) 0950-3675 F1475-69102 Drive, hard disk (6.4GB, 12.7mm, Toshiba) 0950-3397 F1475-69101 Drive, hard disk (10.1 GB, 12.5mm, IBM) * 0950-3443 F1744-69101 * These hard drives are the preferred drives at the time of publication. Drives shipped in units are

subject to change without notice. For current information about preferred and approved drives for these products, see the latest version of service note HDD-01.

† Models called 4150† in this manual have no marking in the serial number, whereas models called

4150B have 4150 B after the serial number.

•••

••

•

••

Required Equipment

• Small Phillips screwdriver.

• Small flat-blade screwdriver.

Removal Procedure

1. Unplug the ac adapter, if present, and remove the battery.

2. Turn the unit bottom side up.

3. Remove the hard drive screw from the bottom case.

4. Pull out the hard drive by its plastic tab.

Screw, M3×4mm

Figure 2-3. Removing the Hard Disk Drive

HP OmniBook 4100/4150 Removal and Replacement 2-5

5. If you are installing a new hard drive that does not have a cover, you can remove the cover parts

from the old hard drive:

• Remove the screw from the case, then pry open the flap. If necessary, use a flat-blade

screwdriver

• Use a flat-blade screwdriver to pry open the snaps at the ends of the case, then open the

connector-side of the case.

• Pry out the corner next to the connector, then lift out the connector and hard drive together.

• Unplug the internal connector and cable from the hard drive.

Spacer for 9.5mm HDD (see Caution)

Screw, M3×4mm

HDD cover kit

Figure 2-4. Installing a Hard Drive in the Cover

Reassembly Notes

Spacers for 8.4mm HDD (see Caution)

Caution

• Do not cover the vent hole in the top surface of the hard drive or in the case. If you cover the hole, the hard drive could fail prematurely.

• If you install a 9.5-mm hard drive in the case, make sure you install the spacer on top of the drive. If you install an 8.4-mm hard drive, make sure you stick the end spacer on the case and install the top spacer on top of the drive.

• Pry out the connector corner of the case and insert the external connector and hard drive at the

same time. The connector seats in the lower part of the opening in the case.

• Secure the two tabs on the screw flap by inserting the corner tab last, while prying out the nearby corner of the case.

• When you install the battery module, be sure the plastic tab on the hard drive case lays folds up against the front of the case.

2-6 Removal and Replacement HP OmniBook 4100/4150

Important

• If you are installing a new hard drive, create a Hibernate partition on the drive before loading

any software—see the steps below.

Creating a Hibernate Partition – OmniBook 4100

1. If you do not have an OmniBook Recovery CD and internal CD-ROM (or DVD) module for the

computer you are repairing, create a Support Utility floppy disk now.

After inserting a formatted floppy disk in the floppy drive, do one of the following:



On an OmniBook 4100 with a Spring-98 factory software installation, click Start, Programs,

OmniBook, Create Support Utility Disk.



On any computer that has a CD-ROM drive, run makesupp from the

\Omnibook\Drivers\Hputils directory on the OmniBook 4100 Recovery CD.

2. Insert the Recovery CD in the CD-ROM drive—or insert the Support Utility disk in the floppy

drive.

3. Reboot the computer. If you are using the Recovery CD, press ESC during reboot to cancel the

OmniBook screen, ESC to display the boot-device menu, then select the CD-ROM drive as the boot device.

4. When prompted, select “Create Hibernate Partition.” We recommend that you create a partition the same as the default option.

Creating a Hibernate Partition—OmniBook 4150 Series

1. Plug in the ac adapter.

2. Insert the Recovery CD in the CD-ROM drive.

3. Shut down and restart the computer—when you see the HP logo, press ESC two times.

4. Select the CD-ROM drive as the boot device.

5. When the Recovery CD dialog box appears, follow the displayed instructions. Accept the

recommended partition size. If you install the factory software, the recovery process can take up to 10 minutes.

If you want to create the Hibernate partition without installing the factory software, click

Advanced and select the option to not install the operating system. If you intend to install Windows NT, you should choose the FAT16 option or the Hibernate-only option.

Note: If, instead, you see an MS-DOS menu of options, select “Recover...” to create the

Hibernate partition and install the factory software, which can take up to 60 minutes. Or select “Create Hibernate Partition” to not install the software. Accept the recommended partition size.

6. When prompted to reboot the computer, press CTRL+ALT+DEL and follow any displayed

instructions.

HP OmniBook 4100/4150 Removal and Replacement 2-7

Replacing Small Parts

(User-Replaceable)

The following small parts are user-replaceable.

Table 2-6. Replacing Small Parts (User-Replaceable)

Part Replacement Procedure Docking Doors

Feet

Hinge Cover, Left

Hinge Cover, Right

I/O Door

Pointing Stick Cap RAM/BIOS Cover

VGA Connector Cover

Open each door and flex the door until one side tab releases. To replace, see the picture on page 2-28.

Insert a small flat-blade screwdriver under the foot and pry it loose. To replace, firmly press the adhesive side of the foot into the recess.

With the display lid fully open, push back on the bottom edge of the hinge cover until it unsnaps, then work it loose and lift it off. To install, make sure the front and back tabs snap into the case.

With the display lid closed, push in the bottom of the hinge cover until it unsnaps, then work it loose and lift it off. To install, make sure the front and back tabs snap into the case.

With the door closed, insert a small flat-blade screwdriver behind the door from below. Flex the door until one side tab releases. It helps to press in lightly on the ends of the door. To install, keep the icons on the door toward the top.

Pull the cap off the pointing stick. On the bottom of the unit, remove the two screws from the RAM/BIOS cover and

remove the cover. With the display closed, push up on the connector cover and down on the bottom

case until the lower tabs release. To install, insert the top tabs into the strip cover, then push up on the cover and down on the bottom case until you can insert the lower tabs.

2-8 Removal and Replacement HP OmniBook 4100/4150

Removing the Keyboard

(HP Authorized Service Providers Only)

Required Equipment

• Small Phillips screwdriver.

• Probe or tweezers.

Removal Procedure

1. Unplug the ac adapter, if present, and remove the battery.

2. On the bottom of the unit, remove the seven “K” screws from the bottom case.

3. Insert your small finger into the PCMCIA opening and push up the top of the keyboard—or you

can lift it from above using a thin flat-blade screwdriver. After lifting the back edge slightly, slide the keyboard toward the back until the front-left corner is free.

4. With the display tilted only slightly back, lift the front of the keyboard and lean it back against the

display. Be careful not to scratch the display or pull on the cables.

5. Release the pointing stick flex cable from the VGA PCA.

6. Release the keyboard flex cable from the VGA PCA.

Pointing stick cap

Keyboard and pointing stick flex cables

Screw, M2.5×16mm (7)

Strip cover

Figure 2-5. Removing the Keyboard

HP OmniBook 4100/4150 Removal and Replacement 2-9

Note

For an OmniBook 4100 with a serial number between TW82000000 and TW83599999, if the date

code on the bottom of the keyboard is “828”, replace the keyboard. (Service note 4100-02.) F1460 and F1462 keyboards are not compatible with 4150B models. F1649 keyboards are

compatible with all models. See the table on page 5-6 for part numbers.

Reassembly Notes

• To connect the larger keyboard flex cable, lay the keyboard flat on the top case slightly forward of its normal position. To connect the smaller pointing stick flex cable, tip up the keyboard against the display.

Caution

After connecting the keyboard and pointing stick flex cables, lean the keyboard forward and tuck the excess length of the keyboard flex cable under the strip cover behind the keyboard. If a stiffener tab is present on the larger cable, make sure its free end lays toward the front of the case—so the tab is not under the strip cover.

into its final position.

Hint

On the bottom case, the holes for the keyboard screws are marked by “K”. The hole recesses have flat bottoms for the 16-mm T-head screws (not tapered as for longer flathead screws).

Check the cable again after lowering the keyboard

2-10 Removal and Replacement HP OmniBook 4100/4150

Removing the Display Assembly

(HP Authorized Service Providers Only)

Required Equipment

• Small Phillips screwdriver.

Removal Procedure

1. Unplug the ac adapter, if present, and remove the battery.

2. On the back of the unit, lift up on the VGA connector cover above the VGA port and unsnap it

from the case.

3. Remove the screw above the VGA port.

4. Remove the four “D” screws from the bottom case.

5. Open the display about 90 degrees, then lift off and lay back the combined top-case strip cover

and display assembly. Do not lose the two springs from the bottom case.

6. Remove the two screws from the LCD flex cable end and unplug the cable.

Screw, M2×4mm

Caution:

Install new screws after removing the two 16mm screws at the corners.

Screw, M2.5×16mm (2)

Strip cover

LCD flex cable

Screw, M2.5×5mm (1)

Screw, M2.5×19mm (2)

Figure 2-6. Removing the Display

VGA connector cover Screw, M2.5×5mm

Note:

Loose spring located in each hole (2).

HP OmniBook 4100/4150 Removal and Replacement 2-11

Reassembly Notes

• Before installing the display assembly, make sure a grounding spring is present in each hole at the back corners of the left and right frames.

Caution

Install new screws for all screws you remove that hold the display hinges. Otherwise, the hinges could loosen over time.

Hint

• While attaching the LCD flex cable to the base, rest one corner of the display on the bottom case.

• On the bottom case, the holes for the display screws are marked by “D”. The hole recesses

have flat bottoms for the 16-mm T-head screws and tapered bottoms for the longer 19-mm flathead screws.

2-12 Removal and Replacement HP OmniBook 4100/4150

Removing the LCD Module

(HP Authorized Service Providers Only)

Note

The exact details for removing the LCD module depend on the type of module. Some details may differ from those described in this section.

See the table below for information about matching components for different types of LCD modules.

Table 2-7. Display Component Compatibility

LCD Type* 13"Sam sung 14" LG 14" IBM74* 14" IBM74E*

OmniBook Model 4100 4100 4150† 4100 4150† 4150†

Bezel, display Cable, LCD flex Cable, LED strip Case, display Kit, display case (latch...) Kit, LCD (brackets, shield...) LCD module PCA, inverter PCA, LVDS PCA, VGA

F1460-60969 F1460-60967 F1629-60909 F1462-60927 F1629-60919 or F1660-60911 F1460-60975 F1460-60981 F1629-60915

F1460-60972 F1629-60916

F1460-60970 F1460-60968

F1460-60971 F1460-60974 F1460-60980 F1629-60932 F1640-60909 F1460-69098 F1440-69095 F1629-69012 F1640-69008 F1460-60917 F1460-60918 F1629-60908 F1629-60917 F1460-60914 F1460-60916 F1629-60907 F1462-60926 F1629-60918

F1460-60906 F1629-60903 F1460-60906 F1629-60903

LCD Type* 13" Hyundai 14" LG* 14" IBM74E 14" I BM76* 14" CPT

OmniBook Model 4150B 4150B 4150B 4150B 4150B Bezel, display Cable, LCD flex Cable, LED strip Case, display Kit, display case (latch...) Kit, LCD (brackets, shield...) LCD module PCA, inverter PCA, LVDS PCA, VGA

(with switch settings)

* To identify the type of LCD module, see t he marking printed on the LCD flex cable where it plugs i nto the

base—it may be on the top or bottom of the cable. For an OmniBook 4150B with an LG or IBM76 LCD module, if the marking on t he cable is not certain,

see the switch settings on the VGA PCA to identif y t he module. For an OmniBook 4150† with an IBM LCD modul e, the IBM74 has a shield with a solid bac k , and the

IBM74E has a shield with a mylar-covered opening across the back.

† Models called 4150† in this manual have no marking in the serial number, whereas models called 4150B

have 4150 B after the serial num ber.

F1655-60915 F1660-60911 F1660-60922 F1660-60913 F1660-60921 F1660-60913 F1660-60920

F1629-60916

F1460-60970 F1460-60968

F1460-60971 F1660-60919 F1660-60915 F1640-60909 F1660-60915 F1660-60918 F1655-69020 F1660-69029 F1640-69008 F1660-69028 F1660-69030 F1460-60917 F1660-60912 F1660-60924 F1660-60912

(none) (none) (none) (none) (none)

F1660-60908

4 —

3 n— 0 2 n— F 1 n— F

F1660-60908

4 n— 3 n— 0 2 n— F 1 —n F

F1660-60908

4 n— 3 n— 0 2 —n F 1 n— F

F1660-60908

4 n— 3 n— 0 2 —n F 1 —n F

F1660-60908

4 n— 3 —n 0 2 n— F 1 n— F

HP OmniBook 4100/4150 Removal and Replacement 2-13

Required Equipment

• Small Phillips screwdriver.

• Pointed knife or probe.

Removal Procedure

1. Unplug the ac adapter, if present, and remove the battery.

2. Remove the display assembly and strip cover from the unit (page 2-11).

3. On the display bezel, remove the upper and lower screw covers (using a pointed knife or probe),

then remove the six screws.

4. At the bottom of the display, lift up the inner edge of the bezel near both hinges until it unsnaps—

be careful to keep the end caps. Then at one side of the display, use your fingers to gently pull the display bezel outward, toward the edge of the case, until the snaps release. When one side is free, repeat along the opposite side—until only the top edge is attached.

5. Now lift the bottom edge about 5 cm and press inward along the top edge until the snaps release

and the bezel lifts off.

6. Remove the two screws holding the LCD brackets and hinges near the bottom corners of the

display case. Remove the combined hinges and strip cover.

7. On the plastic cable holder, unsnap the cover.

8. If present, unplug the flex cable that wraps around the inverter PCA to the left of the cable holder.

9. Unplug the three cables from the inverter PCA—raise the PCA out of the case, if necessary.

Remove the PCA.

10. Slide the LCD module and brackets toward the bottom of the case. When the slots in the brackets

clear the tabs in the case, lift out the LCD module—the LED strip cable is still in the display case.

11. If the LED strip cable is held by the LCD bracket, place the LCD module next to the display case

and LED strip.

12. Remove the four screws holding the brackets to the LCD module.

13. Separate the LCD module and the shield:

• You may have to remove one or more pieces of tape.

• If the flex cable is still attached to the LCD module, unplug the cable.

2-14 Removal and Replacement HP OmniBook 4100/4150

Screw cover, upper domed (2) Screw cover, lower flat (4)

Note:

14-inch LG display shown. For a different display, the LCD flex cable and other details differ.

LCD module

Screw (size depends on LCD module)

Inverter PCA

Note:

LCD type is marked on the end of the flex cable.

Display bezel

Caution:

Install new screws after removing any of the four circled screws.

Screw, M2.5×4mm (6)

Caution:

Reinstall protective tape at the corner, if originally present.

LCD shield LCD brackets,

left and right

LCD flex cable Cable holder cover

Screw, M2.5×4mm (2)

Strip cover, hinges, and hinge covers

Cable holder

LED strip cable

Display case

End cap (2)

Figure 2-7. Removing the LCD Module

HP OmniBook 4100/4150 Removal and Replacement 2-15

Reassembly Notes

with two short ones.

Caution

• Be sure to replace the LCD module or other display components with compatible parts. Components may be damaged if compatible parts are not used. See the table on page 2-13.

• At the lower-right corner of the LCD, reinstall protective tape if it was present on the original LCD.

• For an OmniBook 4150B, if you install a different type of LCD module, you must set the switches on the VGA PCA according to the type of LCD module. See the table on page 2-13.

• Install new screws for all screws you remove that hold the display hinges. Otherwise, the hinges could loosen over time.

• For an LED strip cable that is routed around the bottom-right corner of the LCD, make sure it is

routed through the corner of the LCD bracket.

• Install the inverter PCA under the main LCD flex cable.

• The extra length of LCD wires connecting to the inverter PCA is folded back along the PCA.

• Snap in the end caps after the display is assembled.

Caution

At the lower-right corner of the LCD module, be careful the wires are not pinched where they pass next to the LCD bracket. Otherwise, they could be damaged.

Caution

For a 13-inch LCD, make sure the spacers and tape are installed when you assemble the LCD module and LCD shield. Otherwise, LCD quality may be significantly degraded, including noise or discoloration when the display is moved. (Service notes 4100-04, 4100-05.)

Make sure two rubber spacers are present in the connector recess. If necessary, transfer them from the old LCD or install new spacers.

Note: If one long spacer is present, replace it

Install tape here to hold the cable to the shield.

Shield

Back of 13-Inch LCD and Shield

LCD

Removing the Top Case

(HP Authorized Service Providers Only)

Required Equipment

• Small Phillips screwdriver.

2-16 Removal and Replacement HP OmniBook 4100/4150

Removal Procedure

1. Unplug the ac adapter, if present, and remove the battery.

2. Remove these additional assemblies:

• Floppy module or other module (page 2-3).

• Hard disk drive (page 2-5).

• Keyboard (page 2-9).

• Display assembly and strip cover (page 2-11).

3. Remove the grounding springs from the back corners of the left and right frames.

4. On each of the front corners of the case, do the following:

• Slide the module latch slider forward on the side of the case.

• Slide the speaker cover forward slightly and swing it outward about 2 cm, then pull firmly

until it unsnaps from the case. The slider may come off of the module latch.

5. Unplug the touch-pad flex cable from the VGA PCA.

6. On the bottom of the unit, remove the seven unmarked case screws from the front half of the case.

7. Turn the unit face up and lift off the top case—to release the tab at the left side near the PS/2 port,

twist up the outer edge of the top case above the PS/2 port.

Top case

Speaker cover, left and right

Screw, M2.5×19mm (5)

Module latch slider

Speaker

Screw, M2.5×16mm (2)

Figure 2-8. Removing the Top Case

HP OmniBook 4100/4150 Removal and Replacement 2-17

Reassembly Notes

• Position the speaker on the pins on the bottom case before you install the speaker cover.

• If the slider came off the module latch, attach it to the latch before you install the speaker cover.

Hint

On the bottom case, the holes for the top case screws are unmarked. The hole recesses have flat bottoms for the 16-mm T-head screws and tapered bottoms for the longer 19-mm flathead screws.

2-18 Removal and Replacement HP OmniBook 4100/4150

Removing the CPU Module

(HP Authorized Service Providers Only)

Caution

For an OmniBook 4150 Series, do not unnecessarily remove the CPU module from the motherboard. The CPU connector is easily damaged during removal and insertion.

Table 2-8. CPU Component Compatibility

OmniBook 4100 OmniBook 4150†

Pentium (T)

266 MHz

CPU module

IC, BIOS PCA, motherboard

Plate, CPU bottom Plate, CPU top Spacer, CPU Thermal pads

Heatsink, finned

Heatsink cover

* For serial numbers bel ow TW85299999, use F1629-69001. For serial numbers above TW90100000, use F1640-69001.

† Models called 4150† in this manual have no marking in the serial number, whereas models called 4150B have 4150 B

after the serial number.

F1440-69102 F1440-69103 (233 MHz)

F1460-12016 F1460-12007 (not replaceable) (not repl aceable) F1460-69002 F1460-69004 F1629-69001*

F1460-60949 (Rev 4) F1629-80003

F1460-60951 F1460-60950 F1640-80002

(none) F1462-80003 (none) (none)

5182-5153 (notched) F1463-80001 (large) F1463-80002 (medium) F1463-80003 (small)

F1460-60953 (M2 screw) F1629-60913 (M3 screw)

F1460-60952 (M2 screw) F1629-60914 (M3 screw)

Pentium II (MD)

233-266 MHz

F1440-69104 (266 MHz)

5182-5153 (notched) F1462-80004 (square)

Pentium II (MD)

300 MHz

2-Screw Top Plate

F1440-69016 (300 MHz) F1440-69016 (300 MHz)

F1640-69001*

F1629-60913 F1640-60910

F1629-60914 (none)

Pentium II (MD,D)

300-400 MHz

5-Screw Top Plate

F1640-69101 (333 MHz) F1640-69102 (366 MHz) F1640-69103 (400 MHz)

F1640-69001

For top plate:

F1640-60911 (notched)

OmniBook 4150B

Pentium II (D)

366-400 MHz

Heatsink/Top Plate

CPU module

IC, BIOS PCA, motherboard Thermal pads

Heatsink/top plate

F1640-69102 (366 MHz) F1640-69103 (400 MHz)

(not replaceable)

F1660-69009

For heatsink:

F1640-60911 (notched)

F1660-60903

Required Equipment

• Small Phillips screwdriver.

• OmniBook 4150† CPU removal tool (HP part number T-335665).

HP OmniBook 4100/4150 Removal and Replacement 2-19

Removal Procedure

1. Unplug the ac adapter, if present, and remove the battery.

2. Remove these additional assemblies:

• Floppy module or other module (page 2-3).

• Hard disk drive (page 2-5).

• Keyboard (page 2-9).

3. For an OmniBook that has a 2-screw CPU top plate, remove the screw from the heatsink cover

and lift it off the heatpipe. (The figure on page 2-26 shows these and other parts.)

4. Remove the screws holding the CPU top plate (see the picture on page 4-8 for details):

• For an OmniBook 4150B, remove the five screws from the heatsink/top plate assembly—one

at the front-right corner (M2×12mm), two at the left side (M2 with spring), and two at the diagonal corners of processor (M2×3.5mm).

• For an OmniBook 4150† with a 5-screw CPU top plate, remove the five screws—one at the

heatsink (M2×5mm), two at the corners of the CPU housing (M2×14mm), and two at diagonal corners of the CPU module below (M2×3.5mm). (Do not remove the two small screws above the middle of the CPU.)

• For an OmniBook with a 2-screw CPU top plate, remove the two screws at the corners

(M2×14mm).

5. For an OmniBook 4150B, lift off the heatsink/top plate.

For an OmniBook 4150† with a 5-screw CPU top plate, lift off the top plate, carefully detaching

the heatpipe end tab from the slot in the fan cover.

2-20 Removal and Replacement HP OmniBook 4100/4150

Caution

with the right

In the next step, follow these precautions to prevent damage to the CPU connectors:

• Do not raise the left end higher than the right end during removal.

• OmniBook 4150B: Insert a flat, non-metallic blade under the front of the CPU module near

the right end. Pry up against the motherboard until the CPU releases. Repeat at the back edge, then lift off the module.

• OmniBook 4150†: Use the CPU removal tool to remove the CPU assembly. a. Hold the tool so the large notch is toward the front of the computer. b. Hold the hooked arm of the tool just to the right edge of the right tab on the top plate. If the

top plate has been removed, hold the arm about 4 mm (1/8 inch) to the right of the hook on the bottom plate.

c. Hook the hooked arm under the lower-back edge of the CPU assembly (#1) next to the

right tab.

d. Lower the front arm of the tool so it straddles the connector housing on the motherboard

(#2).

e. Pull the tool handle toward the front to lift out the assembly (#3). Then remove the tool from

the assembly.

The arm lines up edge of the tab.

The notch fits over the plastic connector housing.

Figure 2-9. Removing the CPU (OmniBook 4150†)

• OmniBook 4100: To remove the CPU assembly, lift firmly on the back edge of the bottom

plate near the right corner. This requires firm force. After the back edge releases, lift off the assembly.

To reinstall the CPU assembly, see the precautions under “Reassembly Notes.”

6. Remove the complete CPU assembly so it unplugs from the motherboard—see the caution above.

7. If necessary, slide off the top plate, then remove the CPU module from the bottom plate.

Note

For an OmniBook 4100 with a serial number below TW84099999, if the CPU bottom plate has a

revision number less than “Rev 4”, replace the bottom plate with one that is “Rev 4” or higher. (Service note 4100-03.)

HP OmniBook 4100/4150 Removal and Replacement 2-21

Reassembly Notes

• For an OmniBook 4100 or 4150†, before installing the CPU module, assemble it into the bottom plate. For a 2-screw CPU top plate, attach the top plate to the assembly—do not attach a 5-screw top plate before installing the assembly. Then install the assembly on the motherboard. See the following caution.

Caution

Install or replace CPU module thermal pads that are missing or damaged. Do not reuse a notched CPU pad on a new CPU module. See the figure following this caution.

• OmniBook 4150B: Align the front-right corner of the CPU module and connector. Press down on the CPU module until it seats, as described below.

• OmniBook 4150†: Carefully remove the CPU assembly—the contacts on the CPU

connectors are easily damaged.

a. Align the front-right corner of the CPU assembly correctly and

onto the connector.

b. Place your fingers on top of the CPU assembly above the front and back ends of the

connector (#2 and #1). c. Press firmly at the back end (#1) while holding down the front—until the back engages. d. Then press down the front down (#2) while holding the back. e. Press firmly until the CPU assembly seats in the connector—you should feel a slight click.

Do not push at other locations.

gently

lower it onto the

gently

lower the assembly

Hold both edges. Push down one edge at a time.

Figure 2-10. Inserting the CPU (OmniBook 4100/4150†)

• OmniBook 4100: Keep the CPU assembly flat while installing it. Press it down above the

connectors at the right end. Otherwise, you could damage the connectors.

Before installing the screws, make sure the CPU assembly is fully seated so the bottom plate is touching the motherboard. Otherwise, you could strip the screws.

Install the two screws in diagonally opposite corners of the top plate.

• For an OmniBook 4150† with a 5-screw CPU top plate, install the top plate after installing the

bottom plate and CPU. The tab on the top plate heatpipe must first be slipped into a slot under the fan cover, as the top plate is lowered into position on the CPU.

• If you removed conductive tape grounding straps from the CPU top plate, install them again.

2-22 Removal and Replacement HP OmniBook 4100/4150

Install new pad on new CPU

OmniBook 4100/4150†, 2-Screw Top Plate

Note: Spacer (OmniBook 4100 only)

CPU, Pentium (T)

(4 thermal pads)

OmniBook 4150†, 5-Screw Top Plate

CPU, 333-400 Pentium II (D)

(1 thermal pad

on bottom of top plate)

OmniBook 4150B, Cast Heatsink/Top Plate

CPU, 366-400 Pentium II (D)

(1 thermal pad

on bottom of heatsink/top plate)

CPU, 233-300 Pentium II (MD)

(2 thermal pads)

CPU, 300 Pentium II (MD)

(1 thermal pad

on bottom of top plate)

HP OmniBook 4100/4150 Removal and Replacement 2-23

Figure 2-11. Positioning Thermal Pads

Removing the Motherboard or Bottom Case

(HP Authorized Service Providers Only)

Required Equipment

• Small Phillips screwdriver.

• 5-mm hex driver (or 3/16 inch).

• OmniBook 4150 CPU removal tool (HP part number T-335665).

Removal Procedure

1. Unplug the ac adapter, if present, and remove the battery.

2. Remove these additional assemblies:

• Floppy module or other module (page 2-3).

• Hard disk drive (page 2-5).

• Keyboard (page 2-9).

• Display assembly (page 2-11).

• Top case (page 2-16).

3. Remove the complete CPU assembly—see page 2-19 for detailed precautions and instructions.

4. On the back of the case, use a 5-mm hex driver to remove the two standoffs from the VGA

connector.

5. Lift the front of the VGA PCA to unplug the PCA, then slide it out of the case. (If an LVDS PCA

is present, it is attached.)

6. Remove the screw from the IR PCA and lift the PCA off the frame. Unplug the IR cable from the

motherboard.

2-24 Removal and Replacement HP OmniBook 4100/4150

7. Unplug the fan cable from the motherboard.

8. On the left frame, remove the screw that holds the plastic heat exchange cover. On an OmniBook

4150B, remove the second screw from the fan. Lift off the cover and fan – they are a single assembly on the OmniBook 4150B.

9. On the left frame, remove the screw that holds the frame to the motherboard, then lift out the

frame.

10. Lift out the side air vent cover. If a finned heatsink is present at the left side of the case, lift it out.

11. On the right frame, remove the two screws that hold the frame to the case, then lift out the frame.

12. Remove the screw holding the motherboard at the back-right corner.

13. Unplug the DC-DC PCA from the right side of the motherboard.

14. Lift the front-right corner of the motherboard and remove the audio jack cover from the case.

15. Unplug the audio jack PCA from the motherboard. The metal shield comes off with the PCA.

16. Note the routing of the speaker wires. Then unplug the speaker wires from the motherboard.

17. Remove the two screws from the RAM/BIOS cover and remove it from the bottom of the unit.

Hint

In the next step, while removing the motherboard, reach through the RAM opening and separate the case from the PCA. Otherwise, the PCA sticks in the bottom case.

18. Lift the front edge of the motherboard until it clears the hard drive compartment in the bottom

case and frees itself from the bottom case. Then slide the PCA forward and lift it out.

The docking doors may come out while you are removing the motherboard.

HP OmniBook 4100/4150 Removal and Replacement 2-25

Note:

For an OmniBook 4150† with a 5-screw CPU top plate or an OmniBook 4150B, you must remove the top plate before removing the CPU assembly—see the steps on page 2-19. The CPU and heatsink parts (*) differ from those shown below.

Screw, M2×3.5mm or*

M3×4mm

Heatsink cover* Heatsink (finned)*

Screw, M2×14mm (2)*

CPU with top plate, bottom plate*

LVDS PCA VGA PCA

Heatpipe* (part of CPU top plate)

VGA standoff (2)

Motherboard

Heat exchange cover (For OB 4150B this is part of fan, held by two screws)

Air vent cover

Screw, M2.5×5mm

Left frame RAM/BIOS

cover

DC-DC PCA Audio jack PCA

IR PCA

Screw, M2.5×5mm

Fan

Screw, M2.5×16mm

Right frame

Screw, M2×3.5mm

(OB 4100) or M3×4mm (OB 4150)

Audio jack cover

Figure 2-12. Removing the Motherboard

2-26 Removal and Replacement HP OmniBook 4100/4150

Reassembly Notes

Note: Installing a New Motherboard

• Caution: Replace the motherboard with one that is compatible with the OmniBook model and

CPU module—see the table on page 2-19.

• If any RAM boards are present, transfer them from the old motherboard to the new one:

• Reprogram the BIOS IC—see the note below.

• Store the serial number electronically in the new motherboard—see the steps below.

Note: Installing a New Bottom Case

• Transfer these parts from the old bottom case to the new one: I/O door, docking doors, and module latches (see the figures below). Speakers.

• Install a new regulatory/business card label.

• Transfer the old serial number label and install a new overlay—or create a new serial number

label using the steps below.

• Route the speaker wires so they do not get pinched or block screw holes.

• When you install the audio jack PCA, the metal shield goes under the motherboard. If the shield

comes off the PCA, you can install the shield after you install the PCA.

• For an OmniBook 4100 or 4150†, route the fan wires at the bottom of the opening next to the

motherboard.

• When attaching the IR PCA to the right frame, make sure the PCA is parallel with the back of the

case.

• For an OmniBook 4150† with serial number TW924xxxxx, install a rubber VGA spacer on the

top of the PCA at the front-left corner. (Service note 4150-11.)

Caution

See “Removing the CPU Module” on page 2-19 for detailed precautions and instructions about installing the CPU module.

Note

If you installed a new motherboard with a new BIOS IC, the IC contains only enough basic programming to boot the OmniBook. After installing the motherboard, you must reprogram the IC. Hewlett-Packard prefers that you program the IC with the latest BIOS. You can download it from the OmniBook website (see page vi)—follow the directions provided.

HP OmniBook 4100/4150 Removal and Replacement 2-27

Note: View from inside the case. Rotate the doors 360° to load the spring.

Figure 2-13. Installing Docking Doors and Module Latch

Storing the Serial Number Electronically

1. Exit Windows and boot to a DOS prompt.

2. Run ESN.EXE from one of these sources:



On a factory software installation, change to the \Omnibook\Drivers\Hputils directory and

type

esn at the prompt.



Otherwise, copy \Omnibook\Drivers\Hputils\Esn.exe from the OmniBook 4100 or 4150

Recovery CD, then run it on the OmniBook.

Note: Left latch shown.

Rotate the latch 180° to load the spring.

3. Store the serial number:



If you are prompted for the serial number, type the serial number shown on the bottom of the

case.



If a serial number has already been stored, you must call an HP support center to change it.

Installing a New Serial Number Label

If you do not have a master file that creates serial number labels with fields for “4150 B” and manufacturing location, get a copy from the Reseller website (see page vi) under Support/Service in

Technical Support Information.

1. Using any PC connected to a laser printer, open the master serial label file, enter the serial number

and product number from the old serial label, and print the new label on plain white paper. The new label does not have barcodes.

2. Carefully cut out the new serial label just inside the border and place it into the inner recess in the

bottom case. The bottom of the label goes toward the front of the case.

3. While holding the paper label in place, attach a serial label overlay into the outer recess. It covers

and protects the serial label.

HP Serial Number (S)TW711A1234 4150 B (1P)F1660W MFG# TW711A1234

Made in Taiwan

Figure 2-14. Example of Serial Number Label

2-28 Removal and Replacement HP OmniBook 4100/4150

Removing or Repairing the BIOS IC

(HP Authorized Service Providers Only)

For the OmniBook 4150 Series, the BIOS IC is soldered to the motherboard and is not replaceable:

• If the OmniBook 4150 BIOS IC is defective, the motherboard must be replaced.

• However, if the OmniBook 4150 BIOS IC might only be corrupted, you can repair the BIOS from

a Crisis Recovery floppy—see the information below.

Note

A replacement BIOS IC contains only enough basic programming to boot the OmniBook. After installing the IC, you must reprogram it. Hewlett-Packard prefers that you program the IC with the latest BIOS. You can download it from the OmniBook website (see page vi)—follow the directions

provided.

Required Equipment

• Small Phillips screwdriver.

• IC (PLCC) removal tool (similar to OK Industries EX-5).

Removal Procedure

Caution

Remove all power before removing or installing the BIOS IC. Otherwise, the IC could be damaged.

1. Unplug the ac adapter, if present, and remove the battery.

2. On the bottom of the unit, remove the two screws from the RAM/BIOS cover and remove the

cover.

3. Use an IC removal tool to remove the BIOS IC from its socket.

IC removal tool

Figure 2-15. Removing the BIOS IC

HP OmniBook 4100/4150 Removal and Replacement 2-29

Reassembly Notes

Caution

• Replace the BIOS IC with one that is compatible with the CPU module—see the table on page 2-19.

• Align the IC with the slot in the socket. The IC is keyed to fit correctly. If you insert the IC backward, the IC or motherboard could be damaged.

• Press down firmly on the IC with your thumb to ensure a proper connection.

• Reprogram the IC by programming the BIOS—see the note above.

Repairing the BIOS (OmniBook 4150 Series Only)

If you do not have a BIOS Crisis Recovery floppy, download the package from the Reseller website (see page vi) under Product Support Information in the Service and Support Library. Follow the instructions for creating the floppy.

Caution

Make sure you are using the correct BIOS Crisis Recovery floppy for the OmniBook model you are repairing. The program does not verify the OmniBook model, so you could install the wrong BIOS image.

1. Insert the BIOS Crisis Recovery floppy in the floppy drive.

2. In many situations, you can skip this step—especially if the computer previously displayed a

BIOS checksum error.

If the computer does not boot from the BIOS Crisis Recovery floppy, try plugging the boot-block

jumper into the OmniBook parallel port, then go to the next step. See the wiring diagram below.

3. Turn on the computer and allow it to boot from the floppy disk.

If the computer does not turn on at all, do the following steps to boot from the floppy disk:

• Unplug the ac adapter.

• Press and hold Fn+B.

• Plug in the ac adapter.

• Release Fn+B.

4. Wait while the BIOS is reprogrammed—the display is blank for a minute or more while this

happens.

If you plugged in a boot block jumper, unplug it before the computer automatically reboots.

5. After the BIOS is repaired and reprogrammed, check the BIOS version to see whether it is the

latest version. If necessary, reprogram the BIOS IC—see the note at the beginning of this topic.

2-30 Removal and Replacement HP OmniBook 4100/4150

Figure 2-16. Boot-Block Jumper

Removing Other Components

(HP Authorized Service Providers Only)

Required Equipment

• Small Phillips screwdriver.

• Pointed knife or probe (for display components).

• 5-mm hex driver (or 3/16 inch) (for bottom case components).

Removal Procedure

1. Unplug the ac adapter, if present, and remove the battery.

2. Remove the additional assemblies and follow the special steps indicated in the tables below.

Components are separated into these groups:

• Display components (below).

• Top case components (page 2-32).

• Bottom case components (page 2-33).

Table 2-9. Removing Display Components

Component Removal Procedures Additional Steps (See figure on page 4-7) Cable Holder

(part of display case kit)

Display Bezel

Display Case

Display (page 2-11). 1. Remove the display bezel (page 2-13).

2. Unsnap the cover of the cable holder.

3. Use a flat-blade screwdriver to pry the display case and release the cable holder.

Reassembly Notes: Install the holder so the tabbed side is toward the bottom of the display case.

Display (page 2-11) Remove the display bezel (page 2-13).

Caution: Use compatible parts (page 2-13).

Display (page 2-11). Remove the LCD module and brackets from the case,

but do not disassemble the module (page 2-13). Reassembly Notes: Transfer the display latch and

cable holder from the old display case. Caution: Use compatible parts (page 2-13).

HP OmniBook 4100/4150 Removal and Replacement 2-31

Component Removal Procedures Additional Steps (See figure on page 4-7) Display Latch

(part of display case kit)

End Cap

Hinge

Inverter PCA

LCD Brackets

(part of LCD kit)

LCD Flex Cable

LCD Module LCD Shield

(part of LCD kit)

LED Strip Cable

Strip Cover (Top Case)

Display (page 2-11). 1. For a 13-inch display, do not remove the LCD

module, but remove the display assembly and bezel (page 2-13). For a 14-inch display, remove the LCD module and brackets from the case, but do not disassemble the module (page 2-13).

2. Use a flat-blade screwdriver or probe to release one end of the latch spring.

3. Swing the latch into the display case, then lift it out of its holders.

Display (page 2-11). 1. Remove the display bezel (page 2-13).

2. Lift out the end cap.

Display (page 2-11). 1. Remove the display bezel (page 2-13).

2. Remove the hinges and strip cover from the LCD brackets, then unsnap the hinge covers.

Display (page 2-11). 1. Remove the display bezel (page 2-13).

2. On the plastic cable holder, unsnap the cover.

3. Unplug all cables attached to or holding the inverter PCA. Lift up the PCA if necessary.

Reassembly Notes: Attach cables with tape as in the original unit.

Caution: Use compatible parts (page 2-13).

Display (page 2-11). LCD module (page 2-13). Display (page 2-11). LCD module (page 2-13).

See page 2-13. Display (page 2-11).

LCD module (page 2-13). Display (page 2-11). 1. Remove the LCD module and brackets from the

Display (page 2-11). Unsnap the strip cover from the hinge covers.

Caution: Use compatible parts (page 2-13).

Remove the LCD flex cable from the shield. Reassembly Notes: Attach the cable to the shield as

in the original unit. Caution: Use compatible parts (page 2-13).

Remove the LCD flex cable from the shield. Caution: Use compatible parts (page 2-13).

display case, but do not disassemble the module (page 2-13).

2. If necessary to free the LED cable, remove the right LCD bracket.

Reassembly Notes: Make sure the LED cable is routed through the bottom-right corner of the LCD bracket.

Table 2-10. Removing Top Case Components

Component Removal Procedures Additional Steps Keyboard Strip Cover Top Case

See page 2-9. Display (page 2-11). Unsnap the strip cover from the hinge covers. See page 2-16.

2-32 Removal and Replacement HP OmniBook 4100/4150

Table 2-11. Removing Bottom Case Components

Component Removal Procedures Additional Steps (See figures on pages 4-2, 4-8) Air Vent Cover

Audio Jack Cover

Audio Jack PCA

BIOS IC Bottom Case CPU Bottom Plate

CPU Module (MMO) CPU Top Plate Note: For the

OmniBook 4150B, see “Heatsink/Top Plate” below.

Plug-in module (page 2-3). Hard drive (page 2-5). Keyboard (page 2-9). Display (page 2-11). Top case (page 2-16).

See page 2-28. See page 2-19. Keyboard (page 2-9).

CPU module (page 2-13).

See page 2-13. Keyboard (page 2-9). 1. For an OmniBook 4150† with a 2-screw top plate,

1. Remove the screw from the plastic heat exchange cover and remove the cover.

2. Lift off the fan and move it aside.

3. For a 2-screw CPU top plate, remove the screw from the heatsink cover and remove the cover.

4. Remove the 2 or 5 screws from the CPU top plate and remove the plate.

5. Remove the screw holding the left frame to the motherboard and lift off the frame.

6. Lift out the air vent cover.

1. Remove the screw from the IR PCA and move the PCA aside.

2. Remove the two screws from the right frame and remove the frame.

3. Lift the front-right corner of the motherboard slightly and remove the audio jack cover.

1. Remove the screw from the IR PCA and move the PCA aside.

2. Remove the two screws from the right frame and remove the frame.

3. Unplug the DC-DC PCA.

4. Unplug the audio jack PCA.

During installation, the metal shield goes under the motherboard.

Reassembly Notes: For an OmniBook with a 2-screw top plate, assemble the CPU module, top plate, and bottom plate before installing them on the motherboard.

For an OmniBook 4150† with a 5-screw top plate, assemble the only CPU module and bottom plate before installing them on the motherboard.

remove the screw from the heatsink cover and lift it off the heatpipe.

2. Remove the 2 or 5 screws holding the CPU top plate.

3. Remove the top plate.

Caution: Replace the top plate with one that is compatible with the CPU module—see the table on page 4-3.

Caution: Install conductive tape grounding straps and conductive pads on top of the top plate—just as on the original top plate.

Caution: For an OmniBook 4100, install a square topplate spacer on top of the top plate at the right-rear corner. (Service note 4100-03C.)

HP OmniBook 4100/4150 Removal and Replacement 2-33

Component Removal Procedures Additional Steps (See figures on pages 4-2, 4-8) DC-DC PCA

Fan Caution: Do not spin

the fan blade with your finger. Pressure on the fan blade can damage the bearings.

Frame, Left

Frame, Left or Right

Heatsink Parts

(OmniBook 4100/4150†)

Caution: For the OmniBook 4100, the finned heatsink and heatsink cover must match the screw size (M2 or M3).

Heatsink/Top Plate (OmniBook 4150B)

IR PCA

LVDS PCA

(not present in OmniBook 4150B)

Plug-in module (page 2-3). Hard drive (page 2-5). Keyboard (page 2-9). Display (page 2-11). Top case (page 2-16). Keyboard (page 2-9). Display (page 2-11).

Plug-in module (page 2-3). Hard drive (page 2-5). Keyboard (page 2-9). Display (page 2-11). Top case (page 2-16).

Keyboard (page 2-9). Display (page 2-11).

Keyboard (page 2-9). Remove the 5 screws from the heatsink/top plate and

Display (page 2-11). Remove the screw from the IR PCA, then unplug the

Keyboard (page 2-9). Display (page 2-11).

1. Remove the screw from the IR PCA and move the PCA aside.

2. Remove the two screws from the right frame and remove the frame.

3. Unplug the DC-DC PCA.

1. Unplug the fan cable from the motherboard.

2. Remove the screw from the plastic cover. On an OmniBook 4150B, remove the other screw holding the fan.

3. Lift out the cover and fan - they are a single assembly on an OmniBook 4150B.

Reassembly Notes: For an OmniBook 4100 or 4150†, route the fan wires at the bottom of the opening next to the motherboard.

1. Remove the 1 or 2 screws holding the heat exchange cover/fan.

2. Lift off the cover/fan and move them aside.

3. For a 2-screw CPU top plate, remove the screw from the heatsink cover and remove the cover.

4. Remove the 2 or 5 screws from the CPU top plate and remove the top plate.

5. Remove the screw holding the frame to the motherboard and remove the frame.

1. Remove the screw holding the IR PCA to the frame and move the PCA aside.

2. Remove the two screws holding the frame and remove the frame.

• Heat exchange cover: Remove the screw from the

plastic cover and remove it from the frame.

• Heatsink cover (present only on an OmniBook with a

2-screw CPU top plate): Remove the screw from the cover and remove it from the heatpipe.

• Finned heatsink: Remove the top case (page 2-16).

Remove the screw holding the heat exchange cover to the frame and remove the cover. Lift off the fan and move it aside. For a 2-screw CPU top plate, remove the screw and heatsink cover. Remove the 2 or 5 screws from the CPU top plate and remove the top plate. Remove the screw from the left frame and lift off the frame. Then lift out the finned heatsink.

lift it off.

cable from the motherboard. Use a probe to unplug the LVDS PCA from the VGA

PCA. Caution: The LVDS PCA must be compatible with the

LCD module. See the compatibility table on page 2-13.

2-34 Removal and Replacement HP OmniBook 4100/4150

Component Removal Procedures Additional Steps (See figures on pages 4-2, 4-8) Module Latch, Left

Module Latch, Right

Motherboard PCMCIA Socket

Speaker, Left

Speaker, Right

Speaker Cover

Spring, Grounding

Plug-in module (page 2-3). Hard drive (page 2-5). Keyboard (page 2-9). Display (page 2-11). Top case (page 2-16).

See page 2-19. Keyboard (page 2-9). Remove the four screws from the PCMCIA socket and

Plug-in module (page 2-3). Hard drive (page 2-5). Keyboard (page 2-9). Display (page 2-11). Top case (page 2-16).

Display (page 2-11). Remove the spring form the hole at the back of the left

1. Remove the 1 or 2 screws holding the heat exchange cover/fan.

2. Lift off the cover/fan and move them aside.

3. For a 2-screw CPU top plate, remove the screw from the heatsink cover and remove the cover.

4. Remove the 2 or 5 screws from the CPU top plate and remove the top plate.

5. Remove the screw holding the frame to the motherboard and remove the frame.

6. Lift off the latch and spring.

Reassembly Notes: See the picture on page 2-28.

1. Remove the screw from the IR PCA and move the PCA aside.

2. Remove the two screws from the right frame and remove the frame.

3. Lift off the latch and spring.

Reassembly Notes: See the picture on page 2-28.

unplug it from the motherboard.

1. Remove the 1 or 2 screws holding the heat exchange cover/fan.

2. Lift off the cover/fan and move them aside.

3. For a 2-screw CPU top plate, remove the screw from the heatsink cover and remove the cover.

4. Remove the 2 or 5 screws from the CPU top plate and remove the top plate.

5. Remove the screw holding the frame to the motherboard and remove the frame.

6. Unplug the speaker wires and remove the speaker.

1. Remove the screw from the IR PCA and move the PCA aside.

2. Remove the two screws from the right frame and remove the frame.

3. Unplug the DC-DC PCA.

4. Unplug the speaker wires and remove the speaker.

On the front corner of the case, slide the latch forward. Then slide the speaker cover forward slightly, swing it outward about 2 cm, then pull firmly until it unsnaps from the case.

Reassembly Notes: If the slider came off the latch, attach it to the latch before you install the cover.

or right frame.

HP OmniBook 4100/4150 Removal and Replacement 2-35

Component Removal Procedures Additional Steps (See figures on pages 4-2, 4-8) VGA PCA

† Models called 4150† in this manual have no marking in the serial number, whereas models called 4150B

have 4150 B after the serial number.

Keyboard (page 2-9). Display (page 2-11).

1. Unplug the touch-pad cable from the VGA PCA.

2. On an OmniBook 4100 or 4150†, use a probe to

unplug the LVDS PCA from the VGA PCA.

3. On the back of the unit, remove the two standoffs from the VGA connector.

4. Unplug the VGA PCA from the motherboard.

Caution: For an OmniBook 4150B, you must set the switches on the PCA according to the type of LCD module in the computer—see the table on page 2-13.

Reassembly Notes: For an OmniBook 4150† with serial numb er TW924xxxxx, install a rubber VGA spacer on the top of the PCA at the front-left corner. (Service note 4150-11.)

2-36 Removal and Replacement HP OmniBook 4100/4150

Troubleshooting and Diagnostics

This chapter includes troubleshooting and diagnostic information for testing the functionality of the OmniBook and identifying faulty modules:

• Troubleshooting information



Troubleshooting the problem (page 3-2).



Verifying the repair (page 3-3).



Suggestions for troubleshooting (page 3-4).

• Diagnostic tools



OmniBook hardware diagnostic program (page 3-13).



Power-on self-test (page 3-20).



Sycard PCCtest 450 PC Card (page 3-23).



Desktop Management Interface (page 3-23).



BIOS Setup utility (page 3-26).

Caution

For an OmniBook 4150 Series model, do not unnecessarily remove the CPU module from the motherboard. The CPU connector is easily damaged during removal and insertion.

HP OmniBook 4100/4150 Troubleshooting and Diagnostics 3-1

Troubleshooting

The suggestions in this section can help isolate and repair the cause of a problem. To ensure quality repair, HP recommends that you follow the basic troubleshooting steps shown in the illustration below.

Check the customer’s description of the problem and any supporting information.

Try to duplicate the customer’s problem.

Troubleshoot the problem using

- Diagnostic tools.

- Troubleshooting suggestions.

Verify the repair by testing the functionality of the complete unit .

Figure 3-1. Basic Troubleshooting Steps

Troubleshooting the Problem

Record pertinent information about the unit:



Model and serial number.



Operating system and version.



BIOS version.



Accessories and peripherals used.

Analyze the problem:

• Observe Symptoms. Using the customer’s information, try to duplicate the problem. Determine

how the problem differs from proper behavior. Also, take note of the functions that do work properly.

3-2 Troubleshooting and Diagnostics HP OmniBook 4100/4150

• Separate Problems. If there is more than one symptom, separate them into distinct problems.

Consider Causes. Keep in mind possible causes for each problem. Use the diagnostic tools and

•

troubleshooting suggestions to help find possible causes.



The OmniBook diagnostic program is the primary troubleshooting tool—it tests most

components using automatic and interactive tests. The table on page 3-4 shows how you can use the different diagnostic tools to isolate the cause.



The troubleshooting suggestions on page 3-5 include general suggestions for repairing units

with certain failure symptoms.

Swapping easily replaced modules with known-good modules is an ideal way to isolate the cause down to the module level. It is rare for more than one module to be responsible for one failure symptom. Therefore, replacement of more than one module for a particular symptom should be the exception rather than the normal expectation.

After replacing a module, it is normal for the unit to be in a confused state and lock up when power is applied. If this occurs, press the system-off button to restart the computer in a known state.

Verifying the Repair

Before returning the repaired unit to the customer, verify the repair by running the following tests:

Basic Diagnostic Test. Run the basic test of the OmniBook diagnostic program (page 3-13).

• –and–

Function Tests. Run tests that check the repaired function, such as in the OmniBook diagnostic

•

program (page 3-13).

–and–

• Failed Tests. Run any other tests that failed during troubleshooting.

HP OmniBook 4100/4150 Troubleshooting and Diagnostics 3-3

Suggestions for Troubleshooting

Table 3-1. Scope of Diagnostic Tools

Function OmniBook

Diagnostics

Bootup Processor

Tests (System menu)

Memory

Tests (Memory menu)

Batteries Display Hard disk

Tests (Video,

Mem,User menus)

Tests (IDE menu)

Floppy drive

Tests (FDD menu)

Keyboard

Tests (KBD menu)

Pointer

Tests (Misc menu)

Audio

Tests (System, Misc menus)

Serial

Tests* (Misc menu)

Parallel

Tests* (Misc menu)

Infrared

Tests

†

(Misc menu)

PS/2 port

Tests

†

(KBD,

Misc menus)

USB

Tests

†

(System menu)

Docking port

Tests (using docks)

PCMCIA

Tests (Misc menu)

AC adapter Docking

products CD-ROM drive

Tests ports and internal bus

Tests (IDE menu)

Other plug-in modules

* The diagnostic test is more thorough if you use a loop-back connector.

†

Use an appropriate external device to exercise the port. See the help text for the tests in the menu.

Power-On Self-Test

Sycard PCCtest 450

DMI/TopTools (if installed)

Tests Describes

(SafeTools)

Tests Describes

(AssetTools)

Tests Describes

(AssetTools) Describes (AssetTools) Describes (AssetTools)

Tests Describes

(AssetTools)

Tests Describes

(AssetTools)

Tests Describes

(AssetTools) Describes (AssetTools)

Describes (AssetTools) Describes (AssetTools) Describes (AssetTools)

Describes (AssetTools)

Tests Describes

(AssetTools) Status (AssetTools) Status (AssetTools)

Tests (with boot CD)

Describes (AssetTools)

BIOS Setup

Configures

Describes

Configures Describes

Configures Configures Configures Configures Configures

Configures

3-4 Troubleshooting and Diagnostics HP OmniBook 4100/4150

If you can’t isolate the cause of a problem using the diagnostic tools, you can use the suggestions in the following table to help find the problem.

Table 3-2. Troubleshooting Suggestions

Symptom Call Center:

Suggestions

To help determine likely causes, check to see what replaceable modules are involved in the system function and what roles they play. See the table on page 1-15.

Startup

Does not boot on ac or battery

OmniBook 4150 Series model beeps once, spins hard disk, repeats, but does not boot

Does not boot on battery (boots on ac)

Check the power source. Push system-off button. Unplug the ac adapter and

remove all batteries, then reconnect power.

Remove any RAM board and try again. Reinsert and try again.

Check battery level on battery LEDs.

Check battery contacts. If available, try another battery.

Repair Center: Likely Causes

AC adapter. DC-DC PCA. RAM board. CPU module. Motherboard. VGA PCA. LCD module. Hard drive.

RAM board (OB 4150 Series).

Battery or contacts. DC-DC PCA. Motherboard.

Repair Center: Comments

For an OmniBook 4100 with serial number below TW84099999, check CPU bottom plate. If plate is less

than “Rev 4”, replace bottom plate. Also, make sure a square spacer is installed on top of the CPU top plate at the right-rear corner. (Service note 4100-03C.)

Check ac adapter. Remove any RAM boards and retry.

If power status light does not turn on, reprogram BIOS, replace DC-DC PCA, replace motherboard.

If power status light turns on but display remains off, try external monitor. If monitor shows successful boot, replace LCD module. If monitor shows activity but BIOS does not complete, replace CPU module. If monitor is blank, replace VGA PCA, replace CPU module, replace motherboard.

If power status light and display turn on, BIOS completes, but OS does not start from hard disk or from floppy drive, replace CPU module, then motherboard. If OS starts from floppy drive, reload hard drive, replace hard drive.

Make sure at least one RAM board is installed.

HP OmniBook 4100/4150 Troubleshooting and Diagnostics 3-5

Symptom Call Center:

Suggestions

Does not boot from floppy drive

Error message

such as “Invalid system disk” or “Auto IDE error”

Sluggish startup or shutdown

Password has been forgotten

Power/Battery

Short battery operating time

Does not run on battery, empty battery indication

Check floppy drive contacts. Try using alternate

connection (with or without floppy cable).

Check boot order in BIOS Setup.

Check that floppy boot is enabled in BIOS Setup.

Check for a disk in floppy drive.

Remove and reinsert hard drive.

Check boot order in BIOS Setup.

Run ScanDisk and Disk Defragmenter to check and optimize the hard drive.

Delete temporary and unneeded files.

Verify proper ownership, then follow the removal procedure with the owner and log the appropriate data—see page 5-1.

Turn down display brightness.

Check power management settings in BIOS Setup. Try the default settings.

For an OmniBook 4150B, shut down and restart. During boot at the F2 prompt, press F6. This starts a process that recalibrates the battery gauge, possibly inproving operating time. When the discharge cycle ends, you may have to unplug and reconnect the ac adapter to begin recharging.

Inform user that certain applications can cause excess power usage. (User can get power monitor from www.intel.com and monitor CPU load.)

Some PC cards (PCMCIA) draw power even while not in use.

Heavy modem use can affect battery operating time.

Check battery contacts. If available, try another battery.

Repair Center: Likely Causes

Floppy drive or

contacts. Floppy cable. Motherboard.

Hard drive contacts. Hard drive.

Battery. Motherboard.

Battery or contacts. Motherboard.

Repair Center: Comments

If unit boots from floppy drive, check for corrupt files on hard drive, reload hard drive, replace hard drive.

Use same suggestions shown at left.

The user must call Technical Support and provide proof of ownership. Password removal is restricted to certain sites. See page 5-1.

Battery capacity often decreases after a year or more.

For an F1629A OmniBook 4150† with certain serial numbers between TW84257202 and TW84358133, check the CPU module to see if it must be replaced—see Service note 4150-01.

3-6 Troubleshooting and Diagnostics HP OmniBook 4100/4150

Symptom Call Center:

Suggestions

Battery does not charge

Second battery does not work, main battery works

Battery indicator is inaccurate

Display

Dark display, no light

White display Adjust display brightness. LCD module.

Erratic display L CD cable or

Bright or missing pixels or lines

For a 13-inch LCD, noise or discoloration when the display is moved

Check the power source. Check battery contacts. If

available, try another battery and ac adapter.

Check for high ambient temperature and blocked air vents.

Try swapping the two batteries.

Check contacts on second battery.

Second battery does not charge until main battery is fully charged.

Completely charge and discharge the battery 2 to 4 cycles in the unit.

Adjust display brightness. Press Fn+F5 several times. Try external monitor.

See quality statement on page 5-2.

Repair Center: Likely Causes

Battery or contacts. AC adapter. Motherboard. Fan. DC-DC PCA.

Second battery or

contacts.

Motherboard.

Motherboard. Try cycling the battery

LCD module

(backlight).

LCD cable or

connections. Inverter PCA. LVDS PCA.

Inverter PCA. LVDS PCA.

connections. LCD module. LCD module. LCD cable or

connections. LCD cable

connection.

Repair Center: Comments

Check ac adapter. Check fan.

charge.

Reseat the VGA PCA. If an external monitor

displays no image, replace the VGA PCA instead, then motherboard.

See quality statement on page 5-2.

Remove the LCD shield and check the flex cable connection at the back of the 13-inch LCD module. Two rubber spacers should be behind the connector. After the shield is installed, it should be taped to the flex cable. See the caution on page 2-16. (Service notes 4100-04, 4100-05.)

HP OmniBook 4100/4150 Troubleshooting and Diagnostics 3-7

Symptom Call Center:

Suggestions

Hard disk

Hard disk never spins

Hard disk makes clunking or scratching noise

Hard disk makes buzzing or whining noise

Files are corrupted Run a virus scan program.

Drive capacity is less than normal

Floppy drive

General problems Check floppy module

Keyboard

Some or all keys do not work properly

PS/2 keyboard and mouse with Yadapter do not work

Check the power source. Remove and reinsert the

hard drive. Check the contacts.

Back up the drive immediately.

Was the computer or drive dropped?

Back up the drive immediately.

Check for alternate noise sources, such as a PCMCIA drive or fan.

If a keystroke causes the sound to change, it may be power supply noise.

Check the disk surface by running Scandisk (Windows 95/98) or Disk Administrator (Windows NT). Or boot to DOS and run CHKDSK to look for problems, run CHKDSK /f to fix.

Use Recovery CD to restor e original factory software.

Check the disk surface by running Scandisk (Windows 95/98) or Disk Administrator (Windows NT).

Check partitions using FDISK (Windows 95/98) or Disk Administrator (Windows NT).

contacts. Try using alternate

connection (with or without floppy cable).

Check settings in BIOS Setup.

Check devices separately. Y-adapter.

Repair Center: Likely Causes

Hard drive or

contacts. Motherboard. Hard drive case (flex

cable). Hard drive. Check the computer and

Depends on the

source of the noise.

Hard drive. Use same suggestions

Floppy module or

contacts. Floppy cable. Motherboard.

Keyboard. Motherboard. BIOS IC.

PS/2 device. Motherboard.

Repair Center: Comments

If the drive case is damaged, it can prevent proper operation.

drive for evidence of customer abuse.

Use same suggestions shown at left.

shown at left. Recreate the Hibernate

partition, then partition and format the disk.

Try reinserting the flex cable in the connector on the VGA PCA.

3-8 Troubleshooting and Diagnostics HP OmniBook 4100/4150

Symptom Call Center:

Suggestions

Pointing stick

General problems Check settings in Control

Panel. Check that the pointing stick

is enabled in BIOS Setup.

Special TrackPoint driver features not working

Click button doesn’t work

For an OmniBook 4100: Drifting or erratic pointer using pointing stick

Touch pad

General problems Check settings in Control

Special TouchPad driver features not working

Click button doesn’t work

If installed, remove TouchPad driver support using Add/Remove Program.

In Mouse Properties, select the IBM TrackPoint driver from the track-point directory under \OmniBook\Drivers.

For an OmniBook 4100, check whether serial number is between TW82000000 and TW83599999.

Panel. Check pointing stick settings

in Control Panel. The IBM TrackPoint driver can redefine touch pad operation.

Check that the touch pad is enabled in BIOS Setup.

If installed, remove IBM TrackPoint support using Add/Remove Program, then in Mouse Properties, select the standard PS/2 mouse.

Disable the pointing stick in BIOS Setup, enable the touch pad.

Run Setup.exe from the touch-pad subdirectory under \Omnibook\Drivers.

Repair Center: Likely Causes

Keyboard assembly. Motherboard.

Top case. Motherboard. Keyboard assembly. For an OmniBook 4100 with

Top case. Motherboard.

Repair Center: Comments

Try reinserting the flex cable in the connector on the VGA PCA.

serial number between TW82000000 and TW83599999, check the date code on the bottom of the keyboard. If the date code is “828”, replace the keyboard. (Service note 4100-02.)

HP OmniBook 4100/4150 Troubleshooting and Diagnostics 3-9

Symptom Call Center:

Suggestions

Audio

Sound does not play

Sound does not record

Serial/Parallel

General problems Check settings in BIOS

Infrared

General problems Infrared communication is

USB

General problems USB is not supported in

Check settings in BIOS Setup.

Increase sound volume (Fn+UP and software controls).

Check whether mute is active (mute button and software controls).

Check for sound resource conflicts in Device Manager (Windows 95/98) or Administrative Tools or Control Panel System (Windows NT).

Check settings in BIOS Setup.

Check software controls for microphone—it should not be muted in recording panel.

Note: The microphone should normally be muted in the master output panel.

Setup. Check settings in Control

Panel (and in Windows NT Diagnostics).

not supported in Windows NT 4.0.

Infrared is disabled and no drivers installed as shipped. (Drivers are included.)

Check settings in BIOS Setup.

Standard IrDA and fast-IrDA are incompatible (they use different drivers).

For fast-IrDA, check for DMA conflict with ECP parallel port.

Windows NT 4.0.

Repair Center: Likely Causes

Speakers. VGA PCA

(OB 4150†).

Motherboard.

Inverter PCA (mic). Motherboard. VGA PCA

(OB 4150†).

Motherboard. Use loop-back connector

IR PCA. Motherboard.

Motherboard.

Repair Center: Comments

Check operation using headphones or external speakers (audio jack PCA).

Check operation using external microphone (audio jack PCA).

during test—see page 3-15.

3-10 Troubleshooting and Diagnostics HP OmniBook 4100/4150

Symptom Call Center:

Suggestions

PCMCIA

General problems Make sure Card Executive is

installed for Windows NT. If the card requires an IRQ,

check that there is one available.

Check for conflicts or refresh the device list in Device Manager (Windows 95) or Administrative Tools or Control Panel System (Windows NT).

Reboot the computer. Try the card in the other slot

or in another computer. Check the OmniBook website

for installation instructions (page vi).

Download current drivers

from the card manufacturer’s website.

AC adapter

Does not power the OmniBook

Miscellaneous

Clock loses time Plug in ac adapter for 24

Computer gets hot It is normal for the computer

Try another ac adapter, if available.

hours to charge backup battery.

to get hot. Make sure the air vents are

clear. DOS games and other

programs that drive CPU usage toward 100% can contribute.

Repair Center: Likely Causes

Motherboard. PCMCIA socket.

AC adapter. DC-DC PCA. Motherboard.

Motherboard. Charge backup battery.

Fan. Thermal connections. Heatsink damage.

Repair Center: Comments

Using a flashlight, look for bent pins inside the PCMCIA socket.

If both slots have problems, replace the motherboard. If only one slot has a problem, try replacing the PCMCIA socket.

The ac adapter is not repairable—it must be replaced.

Check the fan. Check for proper contact

between CPU and its top plate, and between heatpipe and heatsink.

HP OmniBook 4100/4150 Troubleshooting and Diagnostics 3-11

Symptom Call Center:

Suggestions

Computer pauses or runs sluggishly

Accessories

Docking product I/O problems

Can not boot from CD in CD-ROM drive

General plug-in module problems

† Models called 4150† in this manual have no marking in the serial number, whereas models called 4150B

have 4150 B after the serial number.

May be normal Windows behavior (background processing can affect response time).

If the hard disk has spun down to conserve power, it can take several seconds to spin up. You can hear this. You can run BIOS Setup and change the hard disk timeout to match the Suspend time-out.

Certain background operations (such as HP COE virus scans) can affect

performance while they’re running.

Some file browsers may be unresponsive while they’re processing a graphic image or waiting for broken network connections to time out.

Check for overheating—see the previous symptom.

Run BIOS Setup and try turning off smart CPU mode.

Check that ac power is connected.

Check settings in BIOS Setup.

Try using the corresponding OmniBook port.

Check that the CD is bootable.

During boot, do not press ESC before the F2 prompt— or check boot order in BIOS Setup.

Check module contacts. Push system-off button.

Repair Center: Likely Causes

CPU module. Motherboard.

Docking product. Motherboard.

CD-ROM drive. The CD-ROM drive is not

Plug-in module or

contacts. Motherboard.

Repair Center: Comments

If computer slows after a period of continuous activity, check thermal connections and parts—see the previous symptom.

Test the corresponding OmniBook ports while undocked.

The port replicator and mini dock are not repairable—they must be exchanged.

The docking system is repairable—see its service manual.

For an F1629A OmniBook 4150† with certain serial numbers between TW84257202 and TW84358133, check the CPU module to see if it must be replaced—see Service note 4150-01.

repairable—it must be exchanged.

Plug-in modules are not repairable—they must be exchanged.

3-12 Troubleshooting and Diagnostics HP OmniBook 4100/4150

Diagnostic Tools

This section describes the following diagnostic tools you can use for troubleshooting and repairing the OmniBook:

• OmniBook hardware diagnostic program (below).

• Power-on self-test (page 3-20).

• Sycard PCCtest 450 PC Card (page 3-23).

• Desktop Management Interface (page 3-23).

• BIOS Setup utility (page 3-26).

OmniBook Diagnostic Program

The OmniBook hardware diagnostic program provides two levels of testing:

• User-level testing using the basic hardware test.

• Advanced testing using the individual hardware tests.

Figure 3-2. OmniBook Diagnostic Screens — Basic and Advanced

The tests are designed to run after the system reboots. This ensures that the computer will be in a predictable state, so the diagnostic program can properly test the hardware components. The tests are non-destructive and are intended to preserve the state of the computer. The OmniBook reboots when you exit the program so drivers can be loaded.

Creating a Diagnostic Floppy Disk

Note

For units with BIOS 2.12 or later, you can run the diagnostic program from the hard disk — without creating a diagnostic floppy disk. If, during boot, the computer displays "F10 to start diagnostic," press F10 to run the diagnostic test from the hard disk.

If you need a diagnostic floppy disk, insert a formatted floppy disk in the floppy drive and do one of the following:

HP OmniBook 4100/4150 Troubleshooting and Diagnostics 3-13

• Check the \Dmi\Hpdiags directory. If diaginst is in this directory, run it.

–or– If TopTools is installed, check whether the DiagTools page can create the disk.

• On any computer with World Wide Web access, download the diagnostic software package from

the OmniBook website (see page vi), then follow the instructions.

Running the Diagnostic Test

1. If you’re using a diagnostic floppy disk, insert it in the floppy drive—or press F10 in the next

step.

2. Reboot the OmniBook.

3. Go through the first several screens.

4. When the hardware detection finishes, check the list of detected hardware. The following

information and devices should be listed if applicable:

Product name Cache memory Graphics adapter

Processor type Main memory Serial ports BIOS version IDE drives Parallel port Serial number Audio device

Note

If a device is not detected or fails its test below, it may be configured incorrectly in the BIOS Setup utility (page 3-26). You can confirm the problem by running BIOS Setup and checking the settings.

5. Run the basic test. Press F2 to start the basic hardware test.

6. If you intend to exit without running advanced tests, press F4 to save system and test information

in the Support Ticket log file, HPSUPPT.TXT. Then remove the diagnostic disk, if present, and press F3 to exit.

Run the advanced tests. Press F2 to open the advanced test screen.

8. Select and run the appropriate tests. Tests are not listed if no such hardware is detected. Press the

following keys to run tests:

ENTER Runs the highlighted test.

F5 or SPACE Marks or unmarks the highlighted test. F6 Marks or unmarks all tests in the current menu. F7 Marks or unmarks all tests in all menus. F10 Runs all marked tests.

If any test fails, the error is logged (error code and description) and displayed temporarily (error

code). If several errors occur, look for patterns that might indicate a common cause. See the table on page 3-15 for repair suggestions. Consider these suggestions in combination with other troubleshooting information.

9. When you are finished running tests, press ESC to exit the advanced tests.

10. Press F4 to save system and test information in the Support Ticket log file, HPSUPPT.TXT.

11.

Exit. Press F3 to exit and reboot.

12. Optional: Check the log. The log file contains a hardware summary and a list of all test results

and errors.Run C:\Dmi\Hputils\Hpsuppt.exe to retrieve the log file to this directory and open it in Notepad—or, if you are using a diagnostic floppy, the log file Hpsuppt.txt is on the floppy disk.

3-14 Troubleshooting and Diagnostics HP OmniBook 4100/4150

Note that the serial and parallel port tests are more thorough if you connect a loop-back connector to the port before running the test for that port. See the wiring diagrams below.

These connections are not used.

Diodes are 1N4004 or equivalent (I

=1A, VF=1V@1A, VR=30-400V)

Figure 3-3. Serial and Parallel Loopback Connectors

Interpreting the Results

• The following table lists test groups, error codes, and suggestions for follow-up actions. Consider

these suggestions in combination with other troubleshooting information.

Table 3-3. OmniBook Diagnostic Error Codes

Code Suggestions Note: For the OmniBook 4150 Series, if you are directed

to replace the BIOS IC, ei t her reprogram it (see page 2-30 if it may be corrupted) or replace the motherboard.

System Tests

0001h 0008h

0009h Replace the motherboard. 0010h -

002Fh 0030h -

0040h 0041h Unrecognized interrupts. Run BIOS Setup and

0050h 0070h

0071h Bad CMOS checksum. Reset the system, then

0072h Configuration mismatch i n CMOS. Reset the

0073h Bad CMOS RAM size. Reset the system , then

0074h Bad CMOS time. Reset the syst em, then run

0075h 0076h

0077h Replace the motherboard. 0078h Bad CMOS checksum. Reset the system, then

0079h Replace the motherboard. 0083h -

0086h

Reseat or replace the CPU modul e.

Replace the motherboard.

check IRQ assignments for all devices. Replace the motherboard.

run BIOS Setup and check settings. Replace motherboard.

system, then run BIOS Setup and check settings. Replace motherboard.

run BIOS Setup and check settings. Replace motherboard.

BIOS Setup and check settings. Replace motherboard.

Reset the system. Replace the motherboard.

run BIOS Setup and check settings. Replace motherboard.

Replace the BIOS IC. Replace the motherboard.

Code Suggestions

0087h Replace the motherboard. 0088h Replace the BIOS IC. 008Ah Replace the m otherboard. 0090h -

0096h 009Ah -

009Eh 009Fh Insufficient DOS memory. Load fewer device

00A0h No repair. (ESCD not s upported.) 00A1h Replace the BI OS IC. Replace the

00A2h 00A3h

00A4h Replace the BI OS IC. 00A5h -

00A6h 00A7h Replace the BI OS IC. Replace the

00C0h 00CCh

00FFh Rerun the test. (Possible diagnostic

Memory Tests

The addresses below are absolute (32-bit) address . These addresses are not in the segment:offset format.

0100h 0101h

0102h Reprogram the BIOS IC. Replace the BI OS IC,

0120h 0131h

Replace the BIOS IC. Replace the motherboard.

drivers.

motherboard. No repair. (ESCD not supported. )

No repair. (ESCD not supported. )

motherboard. Replace the CPU module.

programming error.)

Replace the motherboard.

replace the motherboard. For the OB 4100 for 01FFFFFFh and below,

replace the motherboard. Otherwise, replace the RAM board (each 01000000h represents 16MB). Replace the motherboard.

HP OmniBook 4100/4150 Troubleshooting and Diagnostics 3-15

Code Suggestions

0132h 0150h

0160h Address bus short. Remove any RAM board

0170h 0172h

0180h For the OB 4100 f or 01FFFFFFh and below,

0181h Replace t he CPU module. 0182h Unload HIMEM.SYS or make sure that another

0183h No extended memory. Check installati on of the

0184h Remove or swap RAM boards. (OmniBook

0190h 01A0h

01A1h 01A4h

01B0h For the OB 4100 for 01FFFFFFh and below,

01B1h 01B3h

Hard Disk Tests

0201h Replace t he hard di sk. Replace the

0202h 0204h

0205h Replace t he motherboard. 0207h Run BIOS Setup and check the hard disk t ype.

0208h 0209h

020Ah 0211h

0220h Replace t he motherboard. 0240h Replace t he hard di sk. Replace the

0252h 0254h

025Ah 0260h

For the OB 4100 for 01FFFFFFh and below, replace the motherboard. Otherwise, replace the RAM board (each 01000000h represents 16MB).

and rerun the test. Check t he CP U module for shorts. Replace the motherboard.

Replace the motherboard.

replace the motherboard. Otherwise, replace the RAM board (each 01000000h represents 16MB).

application is not usi ng al l extended memory allocated by HIMEM.SYS.

RAM board. Replace the motherboard.

4150 must have one RAM board present.) Replace the CPU module, replace the motherboard.

For the OB 4100 for 01FFFFFFh and below, replace the motherboard. Otherwise, replace the RAM board (each 01000000h represents 16MB).

Replace the CPU module.

replace the motherboard. Otherwise, replace the RAM board (each 01000000h represents 16MB). Replace the motherboard.

For the OB 4100 for 01FFFFFFh and below, replace the motherboard. Otherwise, replace the RAM board (each 01000000h represents 16MB).

motherboard. Rerun the test. If error persi sts, replace the

hard disk.

Check internal and external hard disk connectors and motherboard c onnector. Replace the hard disk.

Transient DMA error. Rerun the test.

Rerun the test. Run SCANDI SK or equivalent.

motherboard. Rerun the test. Run SCANDI SK or equivalent.

Rerun the test. If error persi sts, replace the hard disk.

Code Suggestions

0265h Check i nternal and external hard disk

0275h Replace t he hard di sk. 0280h Check i nternal and external hard disk

0281h Replace t he hard di sk. 0290h Rerun the test. If the error persist s , replace the

0293h 0296h

02AAh Check int ernal and external hard di sk

02CCh Run BIOS Set up and check the hard disk type.

02EEh For the performance test, run BIOS S etup and

02F1h Recreate the Hibernate partition, then run

02F2h Run FDISK to make one parti tion active. If

02F3h 02F5h

02F6h Recreate the Hibernate partition, then run

02FFh Check internal and external hard disk

9602h 9607h

Floppy Disk Tests

0301h Replace t he floppy drive. Replace the

0302h Run BIOS Setup and check the floppy drive

0303h Insert a floppy disk without write protecti on. 0304h Run BIOS Setup and check the floppy drive

0305h Replace t he motherboard. 0307h Run BIOS Setup and check the floppy drive

0308h 0309h

030Ah 0310h

0311h Rerun the test with another floppy disk. 0321h -

0322h 0340h Replace t he motherboard. 0341h Replace t he floppy drive. Replace the

connectors and motherboard c onnector. Replace the hard disk. Replace the motherboard.

connectors and motherboard c onnector. Replace the hard disk.

hard disk. Replace the hard disk.

connectors and motherboard c onnector. Replace the hard disk.

Replace the hard disk or the m otherboard.

temporarily select a dri ve t ype t hat has more than 200 cylinders.

FDISK to partition the hard di sk.

necessary, recreate the Hibernate partition, then run FDISK to partition the hard disk.

Reformat the hard disk. If necessary, recreate the Hibernate partition, then run FDI SK to partition the hard disk.

FDISK to partition the hard di sk.

connectors and motherboard c onnector. Replace the hard disk. Replace the motherboard.

(See Hard Disk Tests at end of table.)

motherboard.

type. Replace the floppy drive.

type. Check the connectors on the floppy drive and motherboard. Replace the fl oppy dri ve.

Transient DMA error. Rerun the test.

Rerun the test with a good floppy disk . Repl ace the floppy drive.

Replace the floppy drive.

motherboard.

3-16 Troubleshooting and Diagnostics HP OmniBook 4100/4150

Code Suggestions

0342h 0344h

0345h Replace t he motherboard. 0347h Run BIOS Setup and check the floppy drive

0348h 0349h

0350h Rerun the test with another floppy disk.

0360h Replace t he motherboard. 0380h -

03AAh

03CCh Run BIOS Set up and check the floppy drive

03EEh 03FFh

Keyboard Tests

0400h 0401h

0410h 0414h

0415h Replace t he VGA PCA for OB 4100 only.

0416h 0418h

SCSI Tests

0500h Reiniti al i ze t he SCSI device. 0502h Make sure all S CSI devices are turned on and

0503h 0504h

0505h 0507h

0508h 050Ah

050Bh Check the connectors on the SCSI drive.

050Ch 050Eh

0510h Insert a tape cartridge in the drive. 0511h Replace t he tape cartridge. 0512h Run the Write test again. 0514h -

0516h 0520h Ins ert a CD in the SCSI CD-ROM drive. 0521h Ins ert a computer CD in the SCSI CD-ROM

0523h Insert an audio CD in the SCSI CD-ROM drive. 0524h Ins ert a CD in the SCSI CD-ROM drive.

Run BIOS Setup and check the floppy drive type. Replace the floppy drive.

type. Check the connectors on the floppy drive and motherboard. Replace the fl oppy dri ve.

Transient DMA error. Rerun the test.

Replace the floppy drive.

Make sure the floppy disk is fully inserted. Check the connectors on t he floppy drive and motherboard. Replace the fl oppy dri ve.

type. Rerun the test with another fl oppy di s k. Replace the floppy drive. Replace t he motherboard.

Check the connectors on t he floppy drive and motherboard. Rerun the test with anot her floppy disk. Replace the floppy drive. Replace the motherboard.

Replace the motherboard.

Check the keyboard flex cable connection. Replace the keyboard. Replace the motherboard.

Replace the motherboard. Replace the keyboard. Replace the

motherboard.

ready. Make sure the SCSI termination and all SCSI connectors are properly installed. Rerun the test. Reform at the SCSI drive. Replace the SCSI drive.

Reformat the SCSI dri ve. Repl ace the SCSI drive.

Replace the SCSI drive

Reformat the SCSI dri ve. Repl ace the SCSI drive.

Replace the SCSI drive. Reformat the SCSI dri ve.

Replace the tape cartridge. Replace the tape drive.

drive.

Code Suggestions

0525h Transient error. Rerun the test. 0526h Replace t he CD-ROM drive, but only if it has an

0527h Replace t he CD-ROM drive. 0528h Replace t he medium. Replace the SCS I

0550h Replace t he SCSI device. 0560h Rerun the test. (Possible diagnost i c

0580h Insufficient DOS memory. Load fewer device

0590h If test does not fail on identical known good

Serial Port Tests

0601h For the external loop-bac k test, make sure the

0602h Replace t he motherboard. 0603h For the external loop-bac k test, make sure the

0604h 0605h

0606h For the external loop-bac k test, make sure the

0607h Make sure t he l oop-bac k connector is install ed

0608h 0617h

Parallel Port Tests

0701h For the external loop-bac k test, make sure the

0702h For DiagTools 2.2, replace motherboard.

0703h Run BIOS Setup and disable ECP for the

0704h 0706h

0707h Connect the loop-back connector. 0708h Replace t he motherboard.

Audio Tests

0801h 08C2h

automatic clos e feature.

device.

programming error.)

drivers.

device, replace the SCSI devi ce.

loop-back connector is i ns talled and constructed properly. For the external or internal loop-back test, replace the motherboard.

Replace the motherboard.

loop-back connector is i ns talled and constructed properly. For the external or internal loop-back test, replace the motherboard.

and constructed properly. Replace the motherboard.

Replace the motherboard.

loop-back connector is i ns talled and constructed properly. For the external or internal loop-back test, replace the motherboard.

For earlier version, no repair (printer test not supported).

parallel port, then rerun the test. Replace the motherboard.

Replace the motherboard.

If this error also occurs for an external headphone, replace the motherboard (or VGA PCA for the OB 4150†). Otherwise, check the

speaker connections, repl ace the speakers. If it occurs only for an external headphone, replace the audio jack PCA.

HP OmniBook 4100/4150 Troubleshooting and Diagnostics 3-17

Code Suggestions

08D0h 08F3h

9003h 9004h

9018h 901Ah

Video Tests

0900h 0901h

0903h 0906h

0907h 0908h

0909h 090Ah

090Ch 090Fh

0911h If this test fails on t he i nternal display, replace

0912h 0915h

0920h Replace t he LVDS PCA. Replace the VGA

8000h, 9016h 9017h

CD-ROM Tests

0A00h Insert a CD in t he dri ve. 0A01h Rerun the test. Replace the CD-ROM drive. 0A02h No repair. (Automatic close not support ed.) 0A03h Insert a dif ferent CD in the drive. Check the

0A04h Insert a computer CD in the drive. 0A05h Insert a dif ferent CD in the drive. Check the

0A06h Insert a computer CD in the drive. Replace the

0A07h Rerun the test. Replace the drive. 0A08h Insert an audio CD. Repl ace the drive. 0A09h Rerun the test. Replace the drive. 0A10h Insert an audio CD. Repl ace the drive. 0A11h Rerun the test with an audi o CD. Replace the

0A12h Insert a dif ferent multisessi on CD. Replace the

SMBus Tests

0E00h 0E10h

ATAPI Removable Tests (LS-120)

0F01h Connect the LS-120 drive and rerun the test . 0F02h -

0F03h

Replace the motherboard (or VGA P CA for the OB 4150†).

(See Microphone Tests near end of table. )

(See NMA2 Sound near end of table.)

Replace the VGA PCA.

Replace the LVDS PCA. Replac e the VGA PCA.

Replace the VGA PCA.

Replace the LVDS PCA. Replac e the VGA PCA.

Replace the VGA PCA.

the VGA PCA. Replace the VGA PCA.

PCA. (See Video Tests near end of table.)

connectors on the CD-ROM drive and motherboard. Replace the CD-ROM drive.

drive. For earlier diagnostics, i ns ert an audio CD in the drive.

drive.

Replace the motherboard.

Rerun the test. Insert a di fferent disk in the LS120 drive. Check the connectors on the LS-120 drive and motherboard. Replace the LS-120 drive.

Code Suggestions

0F04h 0F05h

0F06h Rerun the test. Insert a di fferent disk in the LS-

0F07h Replace the LS-120 drive. 0F08h Rerun the test. Insert a di fferent disk in the LS-

0F09h Replace the LS-120 drive.

TI CardBus Tests

1201h Memory s pace not available. Remove any

1202h 1203h

1205h 1206h

1207h Reboot the computer. Replace the

USB Tests

1301h Reprogram the BIOS IC. Replace the BI OS IC.

1302h 1316h

9006h (See USB Port Test near end of table.)

ACPI Tests

1701h 1702h

DVD Tests

1900h 1902h

Fan Tests

9001h If t he f an is already running, you will not hear a

9002h Reboot the computer. Replace the

Microphone/Line-In Tests

9003h If the error occurs for built-in and external

9004h Verif y a good s i gnal on the input line. Replace

Suspend/Resume Test

9005h Run BIOS Setup and restore default sett i ngs .

USB Port Test

9006h Make sure a USB device is connected to the

Replace the LS-120 drive.

120 drive. Check the connectors on the LS-120 drive and motherboard. Replace the LS-120 drive.

attached ISA or PCI c ards. Replace the motherboard.

Insert a different PC Card. Repl ace the PCMCIA socket. Replac e the motherboard.

motherboard.

Replace the motherboard. Replace the motherboard.

Reprogram the BIOS IC. Repl ace the BIOS IC, replace the motherboard.

Insert a different DVD in the drive. Replace the DVD drive.

change. Check the fan connec tion. Replace the fan. Replace the motherboard.

motherboard.

microphones, replace t he motherboard (or VGA PCA for the OB 4150†). I f it occurs for only the built-in mic rophone, check the LCD flex cable connection, replace the inverter PCA. If it occurs only for an external microphone, replace the audio j ack PCA.

the audio jack PCA. Replac e the motherboard (or VGA PCA for the OB 4150†).

Reprogram the BIOS IC. Repl ace the BIOS IC. Replace the motherboard.

port you are testing. Selec t the correct speed for the device. Replace the motherboard (or dock component, if applicable).

3-18 Troubleshooting and Diagnostics HP OmniBook 4100/4150

Code Suggestions IR Tests (FIR enabled, undocked)

9002h Reboot the computer. Replace the

9007h 9008h

9009h Do not run thi s test in Wi ndows. For the one-

900Ah Rerun the test. For the two-unit test, make sure

900Ch Rerun the test. Make sure the IR ports on the

Video Tests

8000h If the test fails with an external moni t or (must

9016h Reboot the computer. Reprogram the BI OS.

9017h See chapter 5 for cosmetic guidel i nes, replace

motherboard. Reboot the computer. Run BIOS Setup and

restore default setti ngs. Replace the motherboard.

unit test, replace t he motherboard. For the twounit test, make sure the IR ports on the reflector and test computers are lined up, replace the IR PCA, replace t he motherboard.

the IR ports on the reflect or and test computers are lined up. Replace the IR PCA, repl ac e the motherboard.

reflector and test computers are lined up. Restart the reflector uni t . Replace the IR PCA, replace the motherboard.

support VESA mode 105h), replace the VGA PCA, replace the mot herboard. Otherwise:

- If the shaded-band test fai l s, check the LCD flex cable connection in the bottom case, replace the LVDS PCA, replac e the LCD flex cable, replace the VGA P CA , repl ace the motherboard.

- If only a solid-color tes t fails, see chapter 5 for cosmetic guidel i nes , replace the LCD module.

Replace the VGA PCA.

the LCD module.

Code Suggestions NMA2 Sound Tests

9018h 901Ah

Dock Tests

9071h, 9073h

9075h, 9077h 9078h

907Bh Replace LED/but t on assembly in dock. 9082h Rerun test with known good computer. Replace

9088h Replace electronics PCA in dock.

Hard Disk Tests

9602h 9603h

9604h Reformat the hard disk. If nec essary, recreate

9605h For a computer that does not give an F10

9606h Reformat the hard disk. If nec essary, recreate

9607h Back up data, then reformat the hard di s k.

If this error also occurs for an external headphone, replace the VGA PCA. Ot herwise, check the speaker connec tions, replace the speakers. If it occurs only for an external headphone, replace the audio jack PCA .

Update BIOS in comput er. Replace electronics PCA in dock.

Replace electronics PCA i n dock.

electronics PCA in doc k.

Failure may occur soon. B ack up data and replace the hard disk. Rerun the hard disk test.

the Hibernate partition, then run FDI SK to partition the hard disk.

prompt at boot (old Hibernate part i t i on) or that has a non-Windows operating s ys tem, this error may not indicate a fail ure. Otherwise, reformat the hard disk. If necessary, recreate the Hibernate partition, then run FDI SK to partition the hard disk.

the Hibernate partition, then run FDI SK to partition the hard disk.

Replace the hard disk.

HP OmniBook 4100/4150 Troubleshooting and Diagnostics 3-19

Power-On Self-Test

Note

If Quiet Boot is enabled in BIOS Setup (the default setting), press ESC during boot to see POST messages.

The POST (Power-On Self-Test) is a series of initialization routines and diagnostic tests that the system BIOS runs when the computer boots. The system BIOS will not boot the operating system if system memory, the CPU, DMA, or the interrupt controller fails the POST diagnostic tests. POST progress is indicated by a sequence of codes. If possible, error messages are displayed.

You should not interpret the failure of one or more POST tests as a hardware, software, or firmware

failure. First, confirm the failure with a “clean” boot:

• Remove all accessories, including RAM boards, floppy drive, port replicator, PC Cards, printer,

external monitor, pointing device, and keyboard.

• Provide “clean” ac power—no auto adapter or unusual ac adapter configuration.

• Press the system-off button to start from a known state.

If the computer fails to boot with a clean boot, it requires repair. If an error message is displayed, confirm the problem using other diagnostic tools. Not all POST messages indicate a hardware, software, or firmware failure—some messages are informational messages.

If the BIOS detects a terminal error condition, it halts POST after issuing a terminal error beep code— up to four groups of 1 to 4 short beeps. The beep code indicates the POST routine in which the terminal error occurred. The BIOS also issues a beep code (one long tone followed by two short tones) during POST if the video configuration fails (no card installed or faulty) or if an external ROM module does not properly checksum to zero.

Table 3-4. POST Terminal-Error Beep Codes

Beep Codes POST Description

1 One short beep before boot 1-2 Search for option ROMs.

1-2-2-3 BIOS ROM checksum 1-3-1-1 Test DRAM refresh 1-3-1-3 Test 8742 Keyboard Controll er 1-3-4-1 RAM failure on address line xxxx 1-3-4 -3 RAM failure on data bits xxxx of low byte of memory bus 1-4-1 -1 RAM failure on data bits xxxx of high byte of m emory bus 2-1-2-3 Check ROM copyright notice 2-2-3-1 Test for unexpected interrupts

One long, two short beeps on improper video c onfiguration (check VGA switches on OmniBook 4150B) or external ROM checksum failure

The following table lists POST messages and explanations for reported problems. If the system fails after you make changes in BIOS Setup, reset the computer, enter BIOS Setup, and install the defaults or correct the error.

3-20 Troubleshooting and Diagnostics HP OmniBook 4100/4150

Table 3-5. POST Messages

Message Description

0200 Failure Fixed Disk

0210 Stuck key

0211 Keyboard error

0212 Keyboard Controller Failed

0213 Keyboard locked - Unlock key switch

0220 Monitor type does not match CMOS - Run SETUP

0230 Shadow Ram Failed at offset:

0231 System RAM Failed at offset:

0232 Extended RAM Failed at offset:

0250 System battery is dead - Replace and run SETUP

0251 System CMOS checksum bad - Default configuration used

0260 System timer error

0270 Real time clock error

0280 Previous boot incomplete - Default configuration used

0281 Memory Size found by POST differed from CMOS

02B0 Diskette drive A error 02B1 Diskette drive B error

02B2 Incorrect Drive A type - run SETUP

02B3 Incorrect Drive B type - run SETUP

02D0 System cache error - Cache disabled

02F0: CPU ID:

02F4: EISA CMOS not writeable

02F5: DMA Test Failed

02F6: Software NMI Fai led

Fixed disk is not working or not configured properl y. Check to see if fixed disk is attached properly. Run Setup. Find out if t he f i xed-disk type is correctly identif i ed.

Stuck key on keyboard.

Keyboard not working.

Keyboard controller failed tes t. May require replacing keyboard controller.

Unlock the system to proceed.

Monitor type not correctly identified in Setup

nnnn

Shadow RAM failed at offset nnnn of t he 64k block at which the error was detected.

nnnn

System RAM failed at offset nnnn of in the 64k block at which the error was detected.

nnnn

Extended memory not working or not conf i gured properl y at offset nnnn. Update to the latest BI OS version 2.xx. (Service note 4100-06.)

The CMOS clock battery indic at or shows the battery is dead. Connect the ac adapter for at least 24 hours, replace the motherboard.

System CMOS has been corrupted or modified incorrectly, perhaps by an application program that changes data s tored in CMOS. The BIOS installed Def aul t Setup Values. If you do not want these values, enter Setup and enter your own values. If the error persists , check the system battery. Connect the ac adapter for at leas t 24 hours, replace the motherboard.

The timer test fai l ed. Requires repair of system board.

Real-time clock f ai l s BIOS test. May require board repair.

Previous POST did not complete successf ul l y. POST loads default values and offers to run Setup. If the failure was c aused by incorrect values and they are not corrected, the next boot will likely fail. This error is cleared the next time the syst em is booted.

Memory size found by POST differed from CMOS.

Drive A: or B: is present but fails the BIOS POS T di skette tests. Chec k to see that the drive is defined with the proper diskette t ype in Setup and that the diskette dri ve i s attached correctly.

Type of floppy drive A: not correctly identified in Setup.

Type of floppy drive B: not correctly identified in Setup.

RAM cache failed and BIOS disabled the cache. On older boards, check the cache jumpers. You may have to replace the cache. See your dealer. A disabled cac he slows system performance considerably.

CPU socket number for Multi-Processor error.

ServerBIOS2 test error: Cannot write to EISA CMOS.

ServerBIOS2 test error: Cannot write to extended DMA (Direct Memory Access) regi sters.

ServerBIOS2 test error: Cannot generate software NMI (Non-Maskable Interrupt).

HP OmniBook 4100/4150 Troubleshooting and Diagnostics 3-21

Message Description

02F7: Fail-Safe Timer NMI Failed

device

Address Conflict

Allocation Error for:

CD ROM Drive

Entering SETUP ...

Failing Bits:

Fixed Disk

Invalid System Configuration Data

I/O device IRQ conflict

PS/2 Mouse Boot Summary Screen:

nnnn

Operating system not found

Parity Check 1

Parity Check 2

Press <F1> to resume, <F2> to Setup, <F3> for previous

Press <F2> to enter Setup

PS/2 Mouse:

System BIOS shadowed

UMB upper limit segment address:

Video BIOS shadowed

nnnn

kB Extended RAM Passed

Cache SRAM Passed

kB Shadow RAM Passed

kB System RAM Passed

device

nnnn

ServerBIOS2 test error: Fai l -S afe Timer takes too long.

Address conflict for specified device.

Run ISA or EISA Configuration Utility to resolve resource conflict for the specified device.

CD ROM Drive identified.

Starting Setup program

The hex number nnnn is a map of the bits at the RAM address which failed the memory test. Each 1 (one) in the map indicates a failed bit. See errors 230, 231, or 232 above for offset address of the failure in Sys tem, Extended, or Shadow memory.

Fixed disk n (0-3) identified.

Problem with NVRAM (CMOS) data.

I/O device IRQ conflict error.

PS/2 Mouse installed.

Where nnnn is the amount of RAM in kilobytes successfully tested.

Where nnnn is the amount of system cache in kilobytes successfully tested.

Where nnnn is the amount of shadow RAM in kilobytes suc cessfully tested.

Where nnnn is the amount of system RAM in k i l obytes successfull y t ested.

Operating system cannot be l ocated on either drive A: or drive C:. Ent er Setup and see if fixed disk and drive A: are properly identif i ed.

Parity error found in the system bus. BIOS attempts to locate the address and display it on the screen. If it c annot locate the address, it di splays ????. Parity is a m ethod for checking errors in binary data. A parity error indicates that some data has been corrupted.

Parity error found in the I/O bus. BIOS attempts to locate the address and display i t on the screen. If it cannot l ocate the address, it dis pl ays ????.

Displayed after any recoverable error message. Press <F1> to start the boot process or <F2> to enter Setup and change the settings. Press <F3> to displ ay the previous screen (usually an initialization error of an Option ROM, such as an add-on card). W ri t e down and foll ow the information shown on the screen.

Optional message dis pl ayed duri ng P OST.

PS/2 mouse identi f i ed.

System BIOS c opi ed to shadow RAM.

nnnn

Displays the address nnnn of the upper limit of Upper Memory Blocks, indicating released segments of the B I OS which can be reclaimed by a virtual memory manager.

Video BIOS copied to shadow RAM.

3-22 Troubleshooting and Diagnostics HP OmniBook 4100/4150

Sycard PCCtest 450 CardBus Card (Optional)

The PCCtest 450 CardBus Card (version 1.05) available from Sycard Technology is an optional diagnostic tool. It is the only recommended tool that tests the functionality of the PCMCIA slots using a PCMCIA card. It is a Type II CardBus Card that works with compatible test software to exercise PCMCIA functions. (See the Sycard Technology website, http://www.sycard.com.) The PCCtest 450 product contains these components:

• PCCtest 450 CardBus Card, version 1.05.

• PCCtest 450 software disk. (Software updates are available at the Sycard Technology website,

http://www.sycard.com.)

• Configuration headers (PC Card/16-bit and CardBus/32-bit), which attach to the card. You will also need:

• CardBus extender card to avoid wear on the Sycard PCMCIA connector. The Sycard

PCCextend 70 extender card is an example.

The Sycard PCCtest 450 provides the following tests. See the Sycard documentation for details about running the tests.

Table 3-6. Sycard PCCTest Commands

Slot PCMCIA PC Card (16-bit) test

(PC Card configuration header)

OmniBook 4150B

(PCI1225)

OmniBook 4150†

(PCI1220A)

OmniBook 4100

(PCI1250A)

† Models called 4150† in this manual have no marking in the serial number, whereas models called 4150B

have 4150 B after the serial number.

Upper Lower Upper Lower Upper Lower

PCT450 -b69 -1 -v PCT450 -b69 -0 -v PCT450 -b66 -1 -v PCT450 -b66 -0 -v PCT450 -b65 -1 -v PCT450 -b65 -0 -v

TESTCB -b69 -1 -v -jsd000 TESTCB -b69 -0 -v -jsd000 -k6 TESTCB -b63 -1 -v -jsd000 TESTCB -b63 -0 -v -jsd000 -k6 TESTCB -b65 -1 -v -jsd000 TESTCB -b65 -0 -v -jsd000

CardBus (32-bit) test

(CardBus configuration header)

HP OmniBook 4100/4150 Troubleshooting and Diagnostics 3-23

Desktop Management Interface (DMI)

The Desktop Management Interface (DMI) is basically a set of rules for accessing information about a personal computer. Using DMI, an application program can determine, for example, which hardware and software components are present in a personal computer, the operating system that is being used, and the number of accessory board slots that are available. Using the DMI interface, a local or remote application program can check what hardware and software components are installed on your computer, and may be able to tell how well they are working or whether any needs replacing. All this information is stored in a special Management Information Format (MIF) file, installed on each personal computer as part of the DMI package.

Installing the DMI Package

The DMI package is included with the OmniBook, but it must be properly installed before it can be used. The following steps explain how.

To install the DMI preloaded on the hard disk:

1. Start Windows, if it is not already running.

2. Click Start, Programs, HP TopTools for Notebooks (or HP DMI), Setup.

To install the DMI from the OmniBook Recovery CD or from floppy disks:

1. If you do not have a CD-ROM drive, create installation floppy disks

• On any computer with a CD-ROM drive, copy the DMI software from the dmi directory of

the Recovery CD (under \omnibook\drivers) to two or more floppy disks (for example, copy the contents of the \disk1 subdirectory to disk #1).

• On any computer with World Wide Web access, download the TopTools package from the

OmniBook website (see page vi), then create the floppy disks as directed.

2. Start Windows, if it is not already running.

3. Insert the Recovery CD into the CD-ROM drive, or insert disk #1 into the floppy drive.

4. Select and run the SETUP program from the dmi\disk1 directory on the CD (under

\omnibook\drivers), or from floppy disk #1.

Uninstalling the DMI Package

1. Click Start, Programs, HP TopTools for Notebooks (or HP DMI), Uninstall DMI.

2. Reboot the PC.

Using the DMI Interface

For a complete explanation of how to fully take advantage of DMI, the following documentation is provided with the OmniBook:

• A README.TXT file.

• A Windows online help file describing Hewlett-Packard’s implementation of DMI (group and

attribute definitions). Since not all Hewlett-Packard enhanced features are supported on all models, this document also describes any restrictions that apply.

3-24 Troubleshooting and Diagnostics HP OmniBook 4100/4150

Description of DMI

The Desktop Management Interface (DMI) is the result of the efforts of the Desktop Management Task Force (DMTF). This task force was founded in 1992 by a group of leading computer manufacturers, including Hewlett-Packard, to define a standard method of managing the physical and logical components of personal computers.

Hewlett-Packard has developed a number of extensions to DMI to allow the enhanced features of HP OmniBook computer to be managed with DMI, including features such as passwords and tattooing (identifying a computer using a unique string of characters).

For full details of the structure of the MIF file, including an explanation of the meaning of the fields of groups and attributes and how to write an application program that accesses this information, you can access the DMTF FTP server ftp.dmtf.org or the DMTF web pages at the http://www.dmtf.org.

Contents of the DMI Package

The DMI software and associated documentation is supplied either preinstalled on the OmniBook’s hard disk drive or on two floppy disks. The contents of the package are the same in both cases.

Since the information accessed by the DMI software is specific to a particular computer, it must be installed on each computer separately. The DMI package included with the OmniBook can be used only with the OmniBook.

The following software is supplied with the DMI package:

• A Microsoft Windows utility, SETUP.EXE, to install and initialize the DMI software.

• A Windows utility, HP TopTools. After DMI is installed, this utility can be used to display

information about the computer through the DMI.

• A Management Information Format (MIF) file. This file contains information about everything

on the computer that can be controlled using DMI facilities, and is initialized during installation.

• A component code, identifying the version of MIF file to use for specific models of HP

OmniBook computers.

• Windows-compatible DMTF Service Layer software, which controls access to the DMI.

• A client agent. The HP Remote DMI Agent is a DMI application and also a network server-side

stream-based application. The Remote Agent is listening for Remote Application connection requests. If the main window of the Remote Agent is hidden, then no icon will appear on the screen when it is running.

HP OmniBook 4100/4150 Troubleshooting and Diagnostics 3-25

BIOS Setup Utility

The BIOS Setup utility provides access to basic configuration settings. It is independent of the operating system.

Running the BIOS Setup Utility

1. Close all applications, then shut down Windows and reboot the OmniBook. If necessary, you can

press CTRL+ALT+DEL to reboot.

2. During reboot, press F2 to start the BIOS Setup utility.

3. The pointing device or mouse is not active in the BIOS Setup utility. Press the RIGHT and LEFT

arrow keys to move among menus. Press the DOWN and UP arrow keys to move among parameters in a menu. Press ENTER to change a setting. See the table below for more information.

4. After you select the options you want, press F10 or use the Exit menu to exit the BIOS Setup

utility.

If the settings cause a conflict between devices during reboot, the system prompts you to run

BIOS Setup, and the conflicting settings are marked.

Table 3-7. BIOS Setup Menus and Parameters

OmniBook 4150B: Introduced with BIOS version 3.00 (Fall ’99).

OmniBook 4150†: Introduced with BIOS version 2.00 (Fall ’98).

OmniBook 4100: Introduced with BIOS version 1.01 (Spring ’98), rolled to version 2.00 (Fall ’98). Main Menu Default

Language Sets the language for this utility and BIOS messages. English. BIOS Revision Shows the current BIOS version. Detected

automatically.

System Time Sets the time using 24-hour format. Values set take effect

immediately. System Date Sets the date using mm/dd/yy (English) or dd/mm/yy format. Floppy Drive Sets the floppy drive type. Detected and set

automatically.

Internal Hard Disk Sets the hard disk drive type and various parameters. Detected and set

automatically.

Quiet Boot When enabled, hides summary of power-on self-test and

messages during boot. Video Display Device Sets whether the built-in and external display signals

automatically switch when an external display is detected, or

whether both signals are active. Pressing Fn+F5 temporarily

switches displays.

BIOS Version 2.xx/3.xx:

Video Expansion

BIOS Version 2.xx/3.xx:

Primary Video Adapter

System Memory Shows the system memory size. 640KB Extended Memory Shows the extended memory size. Detected

BIOS Version 3.xx:

CPU Serial Number

Sets whether the video image expands to fill the display in

lower resolution modes (SVGA or VGA).

Sets whether the internal (built-in) video adapter automatically

switches to an external video adapter connected to the

docking system, if one is detected. (Select Internal to use

multiple-monitor capability of Windows 98.)

For a processor with a serial number, makes the processor

serial number available to software.

Enabled

Auto

Disabled

Auto

automatically. Disabled

3-26 Troubleshooting and Diagnostics HP OmniBook 4100/4150

System Devices Menu Default BIOS Version 2.xx/3.xx:

PS/2 Pointing Devices

Internal Pointing Devices Enables one or both built-in PS/2 devices. Both External Fn Key Sets whether left-CTRL + left-ALT on an external keyboard is

IDE Controller Enables the primary (hard drive) and secondary (optional CD-

FDD Controller Enables the floppy drive. Enabled Serial Port Sets how the serial port is configured by the BIOS (specified

Base I/O address Sets the I/O address and interrupt. 3F8h, IRQ4 Infrared Port Sets how the infrared port is configured by the BIOS (specified

Mode Sets the hardware to support SIR (Standard IR), ASK IR

Base I/O address Sets the I/O address and interrupt. 2F8h, IRQ3 DMA channel For Fast IR mode, sets the DMA channel. DMA3 Parallel Port Sets how the parallel port is configured by the BIOS (specified

Mode Sets the port to normal, bi-directional, EPP, or ECP. ECP Base I/O address Sets the I/O address. 378h Interrupt Sets the interrupt. IRQ7 DMA channel For ECP mode, sets the DMA channel. DMA3

OmniBook 4100/4150†:

Audio SB I/O address Sets the Sound Blaster I/O address. 220h WSS I/O address Sets the Windows Sound System I/O address. 530h AdLib I/O address Sets the AdLib synthesizer I/O address. 388h Interrupt Sets the interrupt. IRQ5 1st DMA channel Sets the DMA channel for playback. DMA1 2nd DMA channel Sets the DMA channel for recording. DMA0

Security Menu Default

User Password Is Shows if a user password is set. Clear Administrator Password Is Shows if an administrator password is set. Clear Set User Password Press ENTER to set, change, or clear user password.

Set Administrator Password

Boot Sets whether a password is required when the computer

Resume If boot security is enabled, sets whether a password is

Undock If boot security is enabled, sets whether a password is

Internal Hard Disk Drive Lock

Removable Device Boot Sets whether the floppy drive or other removable device is a

Sets whether internal pointing devices are automatically disabled when an external PS/2 pointing device is detected, or whether both internal and external devices are active.

interpreted as the Fn key.

ROM drive) controllers.

or automatic).

(amplitude shift keyed IR), or FIR (Fast IR) infrared communications. (Driver installation required.)

or automatic).

Sets how the audio system is configured by the BIOS (specified or automatic).

Password length can be no longer than 8 characters, 0-9, A-Z. Press ENTER to set, change, or clear administrator password.

This password protects BIOS Setup settings.

boots.

required when resuming from a suspended state.

required when undocking the OmniBook. If boot security is enabled, sets whether a password is stored

on the hard disk. Secures data on the disk if the disk is moved to another computer.

boot device.

Auto

Enabled

Both

Enabled

Disabled

SIR

Enabled

Disabled

Enabled

HP OmniBook 4100/4150 Troubleshooting and Diagnostics 3-27

Power Menu Default

If ACPI is activated in Windows 98, ACPI settings override settings in this menu.

Power Management Mode Disables time-outs, selects a combination of time-outs, or

allows customized time-outs. Smart CPU Mode Enables automatic CPU power savings when running on

battery power. Absence of keyboard, mouse, and hard disk

activity could cause slower CPU response. For OmniBook

4100/4150†, this should normally be Off to avoid interfering

with time sensitive operations, and the setting applies on ac

power.

Standby Time-out Sets the period of inactivity after which the computer goes

from On to Standby power mode. Suspend Time-out Sets the period of inactivity after which the computer goes

from Standby to Suspend power mode. (Skips Standby mode

if that time-out is disabled.) Hibernate Time-out Sets whether the computer goes from Suspend to Hibernate

power mode after the indicated period of inactivity. (Skips

Suspend mode if that time-out is disabled.) Hard Disk Time-out Sets the period of hard disk inactivity after which the hard disk

stops spinning. Also affects a hard disk drive in the plug-in

module bay. Time-out on AC Sets whether power management time-outs occur while the ac

adapter is connected. Power Button Mode Sets the action of the blue power button when pressed for less

than 4 seconds.

BIOS Version 2.xx/3.xx:

Lid Switch Mode Resume on Serial (or

Modem) Ring Resume on Time of Day Sets whether the system resumes from Suspend at a defined

Resume Time Sets the 24-hour time when the system resumes from

Auto Suspend on Undock Sets whether the OmniBook suspends after undocking. When Lid Closed

BIOS Version 2.xx/3.xx:

Auto Turn-On on Dock

Boot Menu Default

+Removable Device +Hard Drive CD-ROM/DVD Drive

Exit Menu

Save Changes and Exit Saves Setup changes, exits, and reboots. Discard Changes and Exit Discards Setup changes since last save, exits, and reboots.

Get Default Values Restores default settings, stays in Setup. Does not affect

Load Previous Values Discards Setup changes since last save, stays in Setup. Does

Save Changes Saves Setup changes, and stays in Setup. Security settings

† Models called 4150† in this manual have no marking in the serial number, whereas models called 4150B

have 4150 B after the serial number.

Sets the action when the OmniBook lid closes. Turn Off LCD

Sets whether the system resumes from Suspend if a ring

signal is received.

time of day.

Suspend if enabled.

Sets whether the OmniBook turns on after docking. Enabled

Shows the order of boot devices. Move the entries to change

the order. If the computer has more than one device in one of

the “+” categories, you can select the one that is scanned.

Does not affect Security and date/time changes.

Security and date/time settings.

not affect Security and date/time changes.

are saved when changed.

Max Power Savings

OB 4150B:

OB 4100/4150†:

Off

2 minutes

4 minutes

4 hours

2 minutes

Disabled

Suspend

Enabled

Disabled

1. Removable Device

2. Hard drive

3. CD-ROM/DVD drive

3-28 Troubleshooting and Diagnostics HP OmniBook 4100/4150

Replaceable Parts

This chapter contains an exploded view of the OmniBook and the following lists of parts:

• OmniBook replaceable parts (page 4-2).

• Assembly-component breakout (page 4-8)

• Accessory replacement parts (page 4-9).

• Part number reference (page 4-10).

HP OmniBook 4100/4150 Replaceable Parts 4-1

Display components (see page 4-6)

Figure 4-1. Exploded View

Motherboard components (see page 4-7)

4-2 Replaceable Parts HP OmniBook 4100/4150

Table 4-1. OmniBook Replaceable Parts

Description Part Number Exchange User- OmniBook

Part Number Repl. 4150B 4150† 4100

2 Battery, 4200mAh (Molicell) F1466-60903 Yes 2 Battery, 4200mAh (Sony) F1466-80002 Yes 2 Battery, 5100mAh (Molicell) F1660-60927 Yes 2 Battery, 5100mAh (Sony) F1660-60926 Yes 3 Bezel, display (Hyundai 13”) F1655-60915

3 Bezel, display (IBM 14") F1462-60927 3 Bezel, display (IBM 14") F1629-60919 3 Bezel, display (IBM, CPT, LG/B 14”) F1660-60911 3 Bezel, display (LG 14") F1460-60967 3 Bezel, display (LG 14") F1629-60909 3 Bezel, display (Samsung 13") F1460-60969 4 Cable, LCD flex (CPT 14”) F1660-60920 4 Cable, LCD flex (Hyundai 13”) F1660-60922 4 Cable, LCD flex (IBM 14") F1629-60915 4 Cable, LCD flex (IBM74E 14”) F1660-60921 4 Cable, LCD flex (IBM76, LG 14”) F1660-60913 4 Cable, LCD flex (LG 14") F1460-60981 4 Cable, LCD flex (Samsung 13") F1460-60975 5 Cable, LED strip (IBM, CPT, LG/B 14”) F1629-60916 5 Cable, LED strip (LG 14”, Samsung 13”) F1460-60972 7 Cap, end (display) F1462-60924

Cap, pointing stick F1320-60971 Yes 8 Case, bottom * F1460-60961 8 Case, bottom * F1660-60910 9 Case, display (13") * F1460-60970 9 Case, display (14") * F1460-60968

10 Case, HDD kit F1460-60982 11 Case, top F1460-60939 12 Cover, air vent (and PS/2, USB) F1460-60956 12 Cover, air vent (and PS/2, USB) F1660-60906 13 Cover, audio jack F1460-60959 14 Cover, heat exchange (fan) F1460-60955 15 Cover, heatsink (for M2 screw) F1460-60952 15 Cover, heatsink (for M3 screw) F1629-60914 16 Cover, hinge (left) F1460-60941 16 Cover, hinge (left) F1660-60901 Yes 17 Cover, hinge (right) F1460-60940 18 Cover, RAM/BIOS F1460-80013 Yes 18 Cover, RAM/BIOS F1629-80001 Yes 19 Cover, screw (lower, flat) F1462-60922 Yes 20 Cover, screw (upper, domed) F1462-60923 Yes 21 Cover, speaker (left) * F1460-60945 22 Cover, speaker (right) * F1460-60944 23 Cover, strip (top case) F1460-60942 23 Cover, strip (top case) F1660-60902 24 Cover, VGA connector F1460-60943 Yes 25 CPU module (MMO), 233MHz Pentium II (MD)* 1821-4303 F1440-69103

Yes

Yes Yes

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HP OmniBook 4100/4150 Replaceable Parts 4-3

Description Part Number Exchange User- OmniBook

Part Number Repl. 4150B 4150† 4100

25 CPU module (MMO), 266MHz Pentium (T)* 1821-4302 F1440-69102 25 CPU module (MMO), 266MHz Pentium II (MD)* 1821-4304 F1440-69104 25 CPU module (MMO), 300MHz Pentium II (MD)* 1821-4487 F1440-69106 25 CPU module (MMO), 333MHz Pentium II (D)* 1821-4932 F1640-69101 25 CPU module (MMO), 366MHz Pentium II (D)* 1821-4933 F1640-69102 25 CPU module (MMO), 400MHz Pentium II (D)* 1821-5204 F1640-69103 26 Door, I/O F1460-60965 Yes 27 Drive, floppy disk module (no cable) F1472-80001 Yes 28 Drive, hard disk (4.0GB, 12.7mm, IBM) 0950-2671 F1386-69100 Yes 28 Drive, hard disk (4.0GB, 12.7mm, Toshiba) 0950-2865 F1386-69101 Yes 28 Drive, hard disk (4.3GB, 9.5mm, IBM) 0950-3409 F1711-69100 Yes 28 Drive, hard disk (4.8GB, 9.5mm, IBM) ** 0950-3611 F1711-69102 Yes 28 Drive, hard disk (6.4GB, 9.5mm, IBM) ** 0950-3442 F1711-69101 Yes 28 Drive, hard disk (6.4GB, 12.7mm, IBM) 0950-2785 F1475-69100 Yes 28 Drive, hard disk (6.4GB, 8.4mm, Toshiba) 0950-3675 F1475-69102 Yes 28 Drive, hard disk (6.4GB, 12.7mm, Toshiba) 0950-3397 F1475-69101 Yes 28 Drive, hard disk (10.1 GB, 12.5mm, IBM) ** 0950-3443 F1744-69101 Yes 29 Fan F1460-60954 29 Fan F1660-60904

Foot, rubber F1460-60991 Yes 30 Frame, left F1460-60957 31 Frame, right F1460-60958 32 Heatsink, finned (M2, for 2-screw top plate, ) F1460-60953 32 Heatsink, finned (M3, for 2-screw top plate, ) F1629-60913 32 Heatsink, finned (for 5-screw top plate) F1640-60910 32 Heatsink/top plate F1660-60903 33 Hinges, display (left and right) F1460-60973

IC, BIOS, Pentium II (MD, D) F1460-12007

IC, BIOS, Pentium (T) F1460-12016 34 Keyboard, Czech F1649-60916 34 Keyboard, Danish F1649-60914 34 Keyboard, French F1649-60909 34 Keyboard, French-Canadian F1649-60906 34 Keyboard, German F1649-60907 34 Keyboard, Greek F1649-60903 34 Keyboard, International English F1649-60902 34 Keyboard, Italian F1649-60915 34 Keyboard, Japanese F1649-60910 34 Keyboard, Norwegian F1649-60911 34 Keyboard, Spanish F1649-60908 34 Keyboard, Swedish/Finnish F1649-60913 34 Keyboard, Swiss F1649-60912 34 Keyboard, Turkish F1649-60904 34 Keyboard, UK English F1649-60905 34 Keyboard, US English F1649-60901 35 Kit, display case (latch, spring, cable

holder/cover) 36 Kit, dock door (doors, springs) F1460-60964 Yes 37 Kit, LCD (shield, brackets) (CPT 14") F1660-60918

F1460-60971

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4-4 Replaceable Parts HP OmniBook 4100/4150

Description Part Number Exchange User- OmniBook

Part Number Repl. 4150B 4150† 4100

37 Kit, LCD (shield, brackets) (Hyundai 13") F1660-60919

37 Kit, LCD (shield, brackets) (IBM74 14") F1629-60932

37 Kit, LCD (shield, brackets) (IBM74E 14") F1640-60909

37 Kit, LCD (shield, brackets) (IBM76, LG 14") F1660-60915

37 Kit, LCD (shield, brackets) (LG 14") F1460-60980

37 Kit, LCD (shield, brackets) (Samsung 13") F1460-60974

38 Kit, module latch (latches, sliders, springs) F1460-60963

Label, regulatory/business card F1460-60962 Label, regulatory/business card F1629-60910

39 LCD module (CPT 14”) F1660-60930 F1660-69030

39 LCD module (Hyundai 13”) * F1655-60920 F1655-69020

39 LCD module (IBM74 14") F1629-60912 F1629-69012

39 LCD module (IBM74E 14") F1640-60908 F1640-69008

39 LCD module (IBM76 14") F1660-60928 F1660-69028

39 LCD module (LG 14") F1440-60995 F1440-69095

39 LCD module (LG 14") F1660-60929 F1660-69029

39 LCD module (Samsung 13") * F1460-60998 F1460-69098

Module, filler F1460-80015 Yes

Overlay, serial number 7121-7525 40 PCA, audio jack F1460-60913 40 PCA, audio jack F1660-60907 41 PCA, DC-DC F1460-60912 41 PCA, DC-DC F1629-60906 41 PCA, DC-DC F1660-60917 42 PCA, inverter (all 13") F1460-60917 42 PCA, inverter (IBM 14") F1629-60917 42 PCA, inverter (IBM74E 14”) F1660-60924 42 PCA, inverter (IBM76, LG, CPT 14”) F1660-60912 42 PCA, inverter (LG 14") F1460-60918 42 PCA, inverter (LG 14") F1629-60908 43 PCA, IR F1460-60911 43 PCA, IR F1629-60905 43 PCA, IR F1660-60905 44 PCA, LVDS (IBM 14") F1462-60926 44 PCA, LVDS (IBM 14") F1629-60918 44 PCA, LVDS (LG 14") F1460-60916 44 PCA, LVDS (LG 14") F1629-60907 44 PCA, LVDS (Samsung 13") F1460-60914 45 PCA, motherboard, Pentium (T) * F1460-60902 F1460-69002 45 PCA, motherboard, Pentium II (MD) * F1460-60904 F1460-69004 45 PCA, motherboard, Pentium II C2 (MD)* *** F1629-60901 F1629-69001 45 PCA, motherboard, Pentium II C2 (MD, D)* *** F1640-60901 F1640-69001 45 PCA, motherboard* F1660-60909 F1669-69009 46 PCA, VGA F1460-60906 46 PCA, VGA F1629-60903 46 PCA, VGA F1660-60908 47 Plate, CPU bottom (Rev 4) F1460-60949 47 Plate, CPU bottom F1629-80003 48 Plate, CPU top (2-screw), Pentium (T) F1460-60951

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HP OmniBook 4100/4150 Replaceable Parts 4-5

Description Part Number Exchange User- OmniBook

Part Number Repl. 4150B 4150† 4100

48 Plate, CPU top (2-screw), Pentium II (MD) F1460-60950 48 Plate, CPU top (5-screw), Pentium II (MD, D) F1640-80002

RAM module (see table on page 4-9)

Screw, M2×3mm F1440-60988

49 Screw, M2×3.5mm F1640-60912 50 Screw, M2×4mm F1460-60989 61 Screw, M2×5mm F1640-60913 63 Screw, M2×12mm F1440-60981 51 Screw, M2×14mm F1460-60988 52 Screw, M2.5×4mm F1460-60990 53 Screw, M2.5×5mm F1460-60984 54 Screw, M2.5×16mm F1460-60986 55 Screw, M2.5×19mm F1460-60985 57 Screw, M3×4mm F1629-60911 64 Screw/spring, M2 (CPU) F1660-60914 58 Socket, PCMCIA F1460-60919

Spacer, CPU Pentium II (MD) F1462-80003 Spacer, LCD connector (all 13") F1462-60925 Spacer, top plate F1460-80018 Spacer, VGA PCA (rubber) F1640-60944 Spacer kit, for 8.4mm HDD (top and end) F1629-60933 Yes Spacer, for 9.5mm HDD (top) F1629-60934 Yes

59 Speaker F1460-60960 62 Spring, display ground F1462-60928 60 Standoff, VGA F1440-60976

Tape, Kapton, 0.75” x 36 yards F1391-60963 Thermal pad, CPU notched (T, MD) 5182-5153 Thermal pad, large Pentium (T) F1463-80001 Thermal pad, medium Pentium (T) F1463-80002 Thermal pad, small Pentium (T) F1463-80003 Thermal pad, square Pentium II (MD) F1462-80004 Thermal pad, notched (heatsink, top plate) F1640-60911

*See Table 4-2 for components. ** These hard drives are the preferred drives at the time of publication. Drives shipped in units are subject to

change without notice. For current information about preferred and approved drives for these products, see the latest version of service note HDD-01.

*** For serial numbers below TW85299999, use F1629-69001. For serial numbers above TW90100000, use

F1640-69001.

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4-6 Replaceable Parts HP OmniBook 4100/4150

Note:

14-inch LG display shown. For a different display, the LCD flex cable and other details differ.

Figure 4-2. Display Components

HP OmniBook 4100/4150 Replaceable Parts 4-7

Figure 4-3. Motherboard Components

Table 4-2. Assembly-Component Breakdown

Assembly Part Number Components Part Number Incl.

Case, bottom (all) Cover, RAM/BIOS (all) No

Docking doors F1460-60964 No Feet (2) F1460-60991 Yes I/O door F1460-60965 No Label, regulatory/ business card (all) No Overlay, serial number 7121-7525 No

Module latches F1460-60963 No Case, display (all) Display kit (latch, cable holder) F1460-60971 No Cover, speaker (all) Foot (1) F1460-60991 Yes CPU module (MMO) (all) Thermal pads (all) No

LCD module (all 13”) (all) Spacer, LCD connector F1462-60925 No PCA, motherboard (all) BIOS IC (all) Yes

PCMCIA socket F1460-60919 Yes

4-8 Replaceable Parts HP OmniBook 4100/4150

Table 4-3. Accessory Replaceable Parts

Description Part Number Exchange User OmniBook

Part Number Repl. 4150B 4150† 4100

Adapter, ac (60W) 0950-2790 Yes Adapter, auto plug (from airline) 5182-5131 Yes Adapter, auto/airline (75W) F1455-80003 Yes Adapter, docking module bay F1468-60901 Yes Adapter, PS/2 "Y" F1469-80001 Yes Battery, 4200mAh (Molicell) F1466-60903 Yes Battery, 4200mAh (Sony) F1466-80002 Yes Battery, 5100mAh (Molicell) F1660-60927 Yes Battery, 5100mAh (Sony) F1660-60926 Yes Cable, external FDD F1473-80003 Yes Cable, MPEG PC card F1465-60904 Yes Card, PC (MPEG) F1465-60902 Yes CD, DVD player (MPEG) F1465-60903 Yes Charger, battery (external) F1620-60902 Yes Docking system (with tall monitor stand) (see dock service manual) Yes Drive, CD-ROM module F1474-80001 Yes Drive, DVD module F1465-80001 Yes Drive, floppy disk module (no cable) F1472-80001 Yes Drive, LS-120 module F1470-80001 Yes Drive, second HDD housing F1746-80001 Yes Drive, DVD (4X) F1653-80001 Yes Mini dock F1452-60901 Yes Module, filler F1460-80015 Yes Monitor stand (short) F1453-60901 Yes Monitor stand (tall) (see dock service manual) Yes Port replicator F1451-60901 Yes RAM board, 32MB SDRAM (66 MHz) 1818-7413 F1456-69001 Yes RAM board, 64MB SDRAM (66 MHz) 1818-7414 F1457-69001 Yes RAM board, 128MB SDRAM (66 MHz) 1818-7549 F1622-69001 Yes RAM board, 32MB SDRAM (100 MHz) 1818-7950 Yes RAM board, 64MB SDRAM (100 MHz) 1818-7951 Yes RAM board, 128MB SDRAM (100 MHz) 1818-7952 Yes

† Models called 4150† in this manual have no marking in the serial number, whereas models called 4150B

have 4150 B after the serial number.

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HP OmniBook 4100/4150 Replaceable Parts 4-9

Table 4-4. Part Number Reference

Part Exchange Description User OmniBook Number Part Number Repl. 4150B 4150† 4100

0950-2671 F1386-69100 Drive, hard disk (4.0GB, 12.7mm, IBM) 0950-2785 F1475-69100 Drive, hard disk (6.4GB, 12.7mm, IBM) 0950-2790 Adapter, ac (60W) Yes 0950-2865 F1386-69101 Drive, hard disk (4.0GB, 12.7mm, Toshiba) Yes 0950-3397 F1475-69101 Drive, hard disk (6.4GB, 12.7mm, Toshiba) Yes 0950-3409 F1711-69100 Drive, hard disk (4.3GB, 9.5mm, IBM) Yes 0950-3442 F1711-69101 Drive, hard disk (6.4GB, 9.5mm, IBM) * Yes 0950-3443 F1744-69101 Drive, hard disk (10.1GB, 12.5mm, IBM) * Yes 0950-3611 F1711-69102 Drive, hard disk (4.8GB, 9.5mm, IBM)* Yes 0950-3675 F1475-69102 Drive, hard disk (6.4GB, 8.4mm, Toshiba) Yes 1818-7413 F1456-69001 RAM board, 32MB SDRAM (66 MHz) Yes 1818-7414 F1457-69001 RAM board, 64MB SDRAM (66 MHz) Yes 1818-7549 F1622-69001 RAM board, 128MB SDRAM (66 MHz) Yes 1818-7950 RAM board, 32 MB (100 MHz) Yes 1818-7951 RAM board, 64 MB (100 MHz) Yes 1818-7952 RAM board, 128 MB (100 MHz) Yes 1821-4302 F1440-69102 CPU module (MMO), 266 MHz Pentium (T) 1821-4303 F1440-69103 CPU module (MMO), 233 MHz Pentium II (MD) 1821-4304 F1440-69104 CPU module (MMO), 266 MHz Pentium II (MD) 1821-4487 F1440-69106 CPU module (MMO), 300 MHz Pentium II (MD C2) 1821-4932 F1640-69101 CPU module (MMO), 333 MHz Pentium II (D) 1821-4933 F1640-69102 CPU module (MMO), 366 MHz Pentium II (D) 1821-5204 F1640-69103 CPU module (MMO), 400MHz Pentium II (D) 5182-5131 Adapter, auto plug (from airline) Yes 5182-5153 Thermal pad, CPU notched (T, MD) 7121-7525 Overlay, serial number 8120-6312 Power cord, replacement (Australia). Yes 8120-6313 Power cord, replacement (U.S., Canada, Taiwan). Yes 8120-6314 Power cord, replacement (Europe). Yes 8120-6316 Power cord, replacement (Japan). Yes 8120-6317 Power cord, replacement (India, South Africa). Yes 8120-8367 Power cord, replacement (Argentina). Yes 8120-8373 Power cord, replacement (People’s Republic of China). Yes

8120-8452 Power cord, replacement (Chile). Yes 8120-8699 Power cord, replacement (Hong Kong, Singapore, U.K.). Yes F1320-60971 Cap, pointing stick Yes F1391-60963 Kapton tape, 0.75” x 36 yards F1440-60976 Standoff, VGA F1440-60981 Screw, M2×12mm F1440-60988 Screw, M2×3mm F1440-60995 F1440-69095 LCD module (LG 14") F1451-60901 Port replicator Yes F1452-60901 Mini dock Yes F1453-60901 Monitor stand (short) Yes F1455-80003 Adapter, auto/airline (75W) Yes

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4-10 Replaceable Parts HP OmniBook 4100/4150

Part Exchange Description User OmniBook Number Part Number Repl. 4150B 4150† 4100

F1460-12007 IC, BIOS, Pentium II (MD, D) F1460-12016 IC, BIOS, Pentium (T) F1460-60902 F1460-69002 PCA, motherboard, Pentium (T) F1460-60904 F1460-69004 PCA, motherboard, Pentium II (MD) F1460-60906 PCA, VGA F1460-60911 PCA, IR F1460-60912 PCA, DC-DC F1460-60913 PCA, audio jack F1460-60914 PCA, LVDS (Samsung 13") F1460-60916 PCA, LVDS (LG 14") F1460-60917 PCA, inverter (all 13") F1460-60918 PCA, inverter (LG 14") F1460-60919 Socket, PCMCIA F1460-60939 Case, top F1460-60940 Cover, hinge (right) Yes F1460-60941 Cover, hinge (left) Yes F1460-60942 Cover, strip (top case) F1460-60943 Cover, VGA connector Yes F1460-60944 Cover, speaker (right) Yes F1460-60945 Cover, speaker (left) Yes F1460-60949 Plate, CPU bottom (Rev 4) F1460-60950 Plate, CPU top (2-screw), Pentium II (MD) F1460-60951 Plate, CPU top (2-screw), Pentium (T) F1460-60952 Cover, heatsink (for M2 screw) F1460-60953 Heatsink, finned (M2 screw, for 2-screw top plate) F1460-60954 Fan F1460-60955 Cover, heat exchange (fan) F1460-60956 Cover, air vent (and PS/2, USB) F1460-60957 Frame, left F1460-60958 Frame, right F1460-60959 Cover, audio jack F1460-60960 Speaker F1460-60961 Case, bottom F1460-60962 Label, regulatory/business card F1460-60963 Kit, module latch (latches, sliders, springs) F1460-60964 Kit, dock door (doors, springs) Yes F1460-60965 Door, I/O Yes F1460-60967 Bezel, display (LG 14") F1460-60968 Case, display (14") F1460-60969 Bezel, display (Samsung 13") F1460-60970 Case, display (13") F1460-60971 Kit, display case (latch, spring, cable holder/cover) F1460-60972 Cable, LED strip (LG 14”, Samsung 13”)

F1460-60973 Hinges, display (left and right) F1460-60974 Kit, LCD (shield, brackets) (Samsung 13") F1460-60975 Cable, LCD flex (Samsung 13") F1460-60980 Kit, LCD (shield, brackets) (LG 14")

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HP OmniBook 4100/4150 Replaceable Parts 4-11

Part Exchange Description User OmniBook Number Part Number Repl. 4150B 4150† 4100

F1460-60981 Cable, LCD flex (LG 14") F1460-60982 Case, HDD kit F1460-60984 Screw, M2.5×5mm

F1460-60985 Screw, M2.5×19mm F1460-60986 Screw, M2.5×16mm F1460-60988 Screw, M2×14mm F1460-60989 Screw, M2×4mm F1460-60990 Screw, M2.5×4mm F1460-60991 Foot, rubber Yes F1460-60998 F1460-69098 LCD module (Samsung 13") F1460-80013 Cover, RAM/BIOS Yes F1460-80015 Module, filler Yes F1460-80018 Spacer, top plate F1462-60901 OmniBook Performance 98 Group training kit F1462-60910 Recovery CD, English (OB4100, W95, Spring-98) F1462-60911 Recovery CD, German (OB4100, W95, Spring-98) F1462-60912 Recovery CD, French (OB4100, W95, Spring-98) F1462-60913 Recovery CD, Spanish (OB4100, W95, Spring-98) F1462-60914 Recovery CD, Italian (OB4100, W95, Spring-98) F1462-60915 Recovery CD, Swedish (OB4100, W95, Spring-98) F1462-60916 Recovery CD, English (OB4100, WNT, Spring-98) F1462-60917 Recovery CD, German (OB4100, WNT, Spring-98) F1462-60918 Recovery CD, French (OB4100, WNT, Spring-98) F1462-60919 Recovery CD, Spanish (OB4100, WNT, Spring-98) F1462-60920 Recovery CD, Italian (OB4100, WNT, Spring-98) F1462-60921 Recovery CD, Swedish (OB4100, WNT, Spring-98) F1462-60922 Cover, screw (lower, flat) Yes F1462-60923 Cover, screw (upper, domed) Yes F1462-60924 Cap, end (display) F1462-60925 Spacer, LCD connector (all 13") F1462-60926 PCA, LVDS (IBM 14") F1462-60927 Bezel, display (IBM 14") F1462-60928 Spring, display ground F1462-80003 Spacer, CPU Pentium II (MD) F1462-80004 Thermal pad, square Pentium II (MD) F1463-80001 Thermal pad, large Pentium (T) F1463-80002 Thermal pad, medium Pentium (T) F1463-80003 Thermal pad, small Pentium (T) F1465-60902 Card, PC (MPEG) Yes F1465-60903 CD, DVD player (MPEG) Yes F1465-60904 Cable, MPEG PC card Yes F1465-80001 Drive, DVD module Yes F1466-60903 Battery, 4200mAh (Molicell) Yes F1466-80002 Battery, 4200mAh (Sony) Yes F1468-60901 Adapter, docking module bay Yes F1469-80001 Adapter, PS/2 "Y" Yes F1470-80001 Drive, LS-120 module Yes

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4-12 Replaceable Parts HP OmniBook 4100/4150

Part Exchange Description User OmniBook Number Part Number Repl. 4150B 4150† 4100

F1472-80001 Drive, floppy disk module (no cable) Yes F1473-80003 Cable, external FDD Yes F1474-80001 Drive, CD-ROM module Yes F1620-60902 Charger, battery (external) Yes F1629-60901 F1629-69001 PCA, motherboard, Pentium II C2 (MD) F1629-60903 PCA, VGA F1629-60905 PCA, IR F1629-60906 PCA, DC-DC F1629-60907 PCA, LVDS (LG 14") F1629-60908 PCA, inverter (LG 14") F1629-60909 Bezel, display (LG 14") F1629-60910 Label, regulatory/business card F1629-60911 Screw, M3×4mm

F1629-60912 F1629-69012 LCD module (IBM74 14") F1629-60913 Heatsink, finned (M3 screw, for 2-screw top plate) F1629-60914 Cover, heatsink (for M3 screw) F1629-60915 Cable, LCD flex (IBM 14") F1629-60916 Cable, LED strip (IBM, CPT, LG/B 14”) F1629-60917 PCA, inverter (IBM 14") F1629-60918 PCA, LVDS (IBM 14") F1629-60919 Bezel, display (IBM 14") F1629-60920 Recovery CD, English (OB4150, W95/98, Fall-98) F1629-60921 Recovery CD, German (OB4150, W95/98, Fall-98) F1629-60922 Recovery CD, French (OB4150, W95/98, Fall-98) F1629-60923 Recovery CD, Spanish (OB4150, W95/98, Fall-98) F1629-60924 Recovery CD, Italian (OB4150, W95/98, Fall-98) F1629-60925 Recovery CD, Swedish (OB4150, W95/98, Fall-98) F1629-60926 Recovery CD, English (OB4150, WNT, Fall-98) F1629-60927 Recovery CD, German (OB4150, WNT, Fall-98) F1629-60928 Recovery CD, French (OB4150, WNT, Fall-98) F1629-60929 Recovery CD, Spanish (OB4150, WNT, Fall-98) F1629-60930 Recovery CD, Italian (OB4150, WNT, Fall-98) F1629-60931 Recovery CD, Swedish (OB4150, WNT, Fall-98) F1629-60932 Kit, LCD (shield, brackets) (IBM74 14") F1629-60933 Spacer kit, for 8.4mm HDD (top and end) Yes F1629-60934 Spacer, for 9.5mm HDD (top) Yes F1629-80001 Cover, RAM/BIOS Yes F1629-80003 Plate, CPU bottom F1640-60901 F1640-69001 PCA, motherboard, Pentium II C2 (MD, D) F1640-60908 F1640-69008 LCD module (IBM74E 14") F1640-60909 Kit, LCD (shield, brackets) (IBM74E 14") F1640-60910 Heatsink, finned (for 5-screw top plate) F1640-60911 Thermal pad, notched (heatsink, top plate) F1640-60912 Screw, M2×3.5mm F1640-60913 Screw, M2×5mm F1640-60921 Recovery CD, English (OB4150, W95/98, Wntr-98) F1640-60922 Recovery CD, German (OB4150, W95/98, Wntr-98)

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HP OmniBook 4100/4150 Replaceable Parts 4-13

Part Exchange Description User OmniBook Number Part Number Repl. 4150B 4150† 4100

F1640-60923 Recovery CD, Spanish (OB4150, W95/98, Wntr-98) F1640-60924 Recovery CD, French (OB4150, W95/98, Wntr-98) F1640-60925 Recovery CD, Japanese (OB4150, W95/98, Wntr-98) F1640-60926 Recovery CD, Norwegian (OB4150, W95/98, Wntr-98) F1640-60927 Recovery CD, Swedish (OB4150, W95/98, Wntr-98) F1640-60928 Recovery CD, Finnish (OB4150, W95/98, Wntr-98) F1640-60929 Recovery CD, Danish (OB4150, W95/98, Wntr-98) F1640-60930 Recovery CD, Italian (OB4150, W95/98, Wntr-98) F1640-60931 Recovery CD, Chinese, (OB4150, W95/98, Wntr-98) F1640-60933 Recovery CD, English (OB4150, WNT, Wntr-98) F1640-60934 Recovery CD, German (OB4150, WNT, Wntr-98) F1640-60935 Recovery CD, Spanish (OB4150, WNT, Wntr-98) F1640-60936 Recovery CD, French (OB4150, WNT, Wntr-98) F1640-60937 Recovery CD, Japanese (OB4150, WNT, Wntr-98) F1640-60938 Recovery CD, Norwegian (OB4150, WNT, Wntr-98) F1640-60939 Recovery CD, Swedish (OB4150, WNT, Wntr-98) F1640-60940 Recovery CD, Finnish (OB4150, WNT, Wntr-98) F1640-60941 Recovery CD, Danish (OB4150, WNT, Wntr-98) F1640-60942 Recovery CD, Italian (OB4150, WNT, Wntr-98) F1640-60943 Recovery CD, Chinese (OB4150, WNT, Wntr-98) F1640-60944 Spacer, VGA PCA (rubber) F1640-80002 Plate, CPU top (5-screw), Pentium II (MD, D), w/pad F1649-60901 Keyboard, US English F1649-60902 Keyboard, International English F1649-60903 Keyboard, Greek F1649-60904 Keyboard, Turkish F1649-60905 Keyboard, UK English F1649-60906 Keyboard, French-Canadian F1649-60907 Keyboard, German F1649-60908 Keyboard, Spanish F1649-60909 Keyboard, French F1649-60910 Keyboard, Japanese F1649-60911 Keyboard, Norwegian F1649-60912 Keyboard, Swiss F1649-60913 Keyboard, Swedish/Finnish F1649-60914 Keyboard, Danish F1649-60915 Keyboard, Italian F1649-60916 Keyboard, Czech F1653-80001 Drive, DVD (4X) Yes F1655-60915 Bezel, display (Hyundai 13") F1655-60920 F1655-69020 LCD module (Hyundai 13") F1660-60901 Cover, hinge (left) Yes F1660-60902 Cover, strip (top case) F1660-60903 Heatsink/top plate F1660-60904 Fan F1660-60905 PCA, IR F1660-60906 Cover, air vent (and PS/2, USB)

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4-14 Replaceable Parts HP OmniBook 4100/4150

HP omnibook 4100, omnibook 4150 schematic

Specifications and Main Features

Frequently Asked Questions

User Manual