HP OMNIBOOK 3000 User manual

®
HP OmniBook 3000
Service Manual

ii HP OmniBook 3000
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
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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 1997. 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., and NeoMagic, Inc.
See the individual programs for additional copyright notices.
Microsoft, MS, MS-DOS, and Windows 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.
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........................ October 1997

HP OmniBook 3000 iii
Contents
1. Product Information...............................................................................................1-1
Features and Operation..................................................................................................................1-1
Turning the OmniBook On and Off.........................................................................................1-3
Checking the Status of the OmniBook.....................................................................................1-4
Using Functions Keys (F1 through F12).................................................................................1-5
Resetting the OmniBook.........................................................................................................1-5
System Resources ...................................................................................................................1-6
Specifications.................................................................................................................................1-7
Internal Design ............................................................................................................................1-10
2. Removal and Replacement.....................................................................................2-1
Removing the Main Battery (User-Replaceable)...........................................................................2-3
Removing a Plug-In Accessory Module (User-Replaceable).........................................................2-4
Removing the Hard Disk Drive (User-Replaceable)......................................................................2-5
Removing a RAM Board (User-Replaceable) ...............................................................................2-7
Replacing Small Parts (User-Replaceable)....................................................................................2-8
Removing the Display Assembly (HP Authorized Service Providers Only)..................................2-9
Removing the LCD Module (HP Authorized Service Providers Only)........................................2-11
Removing the Display Case or LCD Bracket (HP Authorized Service Providers Only)..............2-14
Removing the Keyboard (HP Authorized Service Providers Only) .............................................2-16
Removing the Top Case and TouchPad (HP Authorized Service Providers Only).......................2-17
Removing the Motherboard or Bottom Case (HP Authorized Service Providers Only)...............2-21
Removing the System or Keyboard BIOS IC (HP Authorized Service Providers Only)..............2-25
Removing Other Components (HP Authorized Service Providers Only).....................................2-27
3. Troubleshooting and Diagnostics...........................................................................3-1
Troubleshooting.............................................................................................................................3-2
Troubleshooting the Problem..................................................................................................3-2
Verifying the Repair ...............................................................................................................3-9
Diagnostic Tools..........................................................................................................................3-10
OmniBook Diagnostic Program............................................................................................3-10
Power-On Self-Test..............................................................................................................3-15
Sycard PCCtest 450 CardBus Card (Optional).....................................................................3-17
Desktop Management Interface (DMI).................................................................................3-18
BIOS Setup Utility................................................................................................................3-20
4. Replaceable Parts ...................................................................................................4-1
5. Reference Information............................................................................................5-1
Password Removal Policy..............................................................................................................5-1
Hewlett-Packard TFT Display Quality Statement..........................................................................5-2

iv HP OmniBook 3000
Figures
Figure 1-1. OmniBook - Front View...................................................................................................1-1
Figure 1-2. OmniBook - Side View.....................................................................................................1-2
Figure 1-3. OmniBook - Back View....................................................................................................1-2
Figure 1-4. Replaceable Module Diagram.........................................................................................1-10
Figure 2-1. Removing the Main Battery..............................................................................................2-3
Figure 2-2. Removing a Plug-In Module.............................................................................................2-4
Figure 2-3. Removing the Hard Drive.................................................................................................2-5
Figure 2-4. Installing a Hard Drive in the Carrier...............................................................................2-6
Figure 2-5. Removing the RAM Cover ...............................................................................................2-7
Figure 2-6. Removing a RAM Board..................................................................................................2-8
Figure 2-7. Removing the Hinge Covers and Icon Window Cover......................................................2-9
Figure 2-8. Removing the Icon PCA and Display Assembly.............................................................2-10
Figure 2-9. Removing the Hinge Covers and Icon Window Cover....................................................2-11
Figure 2-10. Removing the Display Bezel.........................................................................................2-12
Figure 2-11. Removing the LCD Module..........................................................................................2-13
Figure 2-12. Removing the Display Case and LCD Bracket.............................................................2-15
Figure 2-13. Removing the Hinge Covers and Icon Window Cover..................................................2-16
Figure 2-14. Removing the Keyboard ...............................................................................................2-17
Figure 2-15. Removing the Heat Sink Assembly...............................................................................2-18
Figure 2-16. Removing the Case Screws...........................................................................................2-19
Figure 2-17. Removing the Top Case Assembly................................................................................2-20
Figure 2-18. Placing the Top Case Labels (Right Edge of Palmrest).................................................2-21
Figure 2-19. Removing and Installing the CPU Module....................................................................2-22
Figure 2-20. Removing the Motherboard ..........................................................................................2-23
Figure 2-21. Installing a Bottom Case Label.....................................................................................2-25
Figure 2-22. Removing a BIOS IC....................................................................................................2-26
Figure 3-1. Basic Troubleshooting Steps.............................................................................................3-2
Figure 3-2. OmniBook Diagnostic Screens — Basic and Advanced.................................................3-10
Figure 3-3. Serial and Parallel Loopback Connectors .......................................................................3-12
Figure 3-4. DMI Components............................................................................................................3-19
Figure 4-1. Exploded View .................................................................................................................4-2
Tables
Table 1-1. Summary of Features .........................................................................................................1-2
Table 1-2. Activating Power Modes....................................................................................................1-3
Table 1-3. Power Mode Descriptions..................................................................................................1-3
Table 1-4. Status Panel Indicators (Icon PCA)....................................................................................1-4
Table 1-5. Indicator Lights..................................................................................................................1-4
Table 1-6. Function Keys (F1-F12).....................................................................................................1-5
Table 1-7. System Interrupts ...............................................................................................................1-6
Table 1-8. System Memory.................................................................................................................1-6
Table 1-9. System Input/Output Addresses (100-3FF)........................................................................1-7
Table 1-10. DMA Channels................................................................................................................1-7
Table 1-11. HP OmniBook 3000 Specifications..................................................................................1-7
Table 1-12. HP OmniBook 3000 Accessories.....................................................................................1-9
Table 1-13. Functional Structure.......................................................................................................1-11
Table 2-1. Required Equipment...........................................................................................................2-2

HP OmniBook 3000 v
Table 2-2. Recommended Screw Torques ...........................................................................................2-2
Table 2-3. Hard Disk Drive Replacement Part Numbers.....................................................................2-5
Table 2-4. RAM Board Replacement Part Numbers ...........................................................................2-7
Table 2-5. Replacing Small Parts (User-Replaceable) ........................................................................2-8
Table 2-6. Other Replaceable Components (Authorized Providers)..................................................2-27
Table 3-1. Troubleshooting Suggestions..............................................................................................3-3
Table 3-2. Scope of Diagnostic Tools..................................................................................................3-8
Table 3-3. OmniBook Diagnostic Error Codes..................................................................................3-12
Table 3-4. Power-On Self-Test Error Codes .....................................................................................3-15
Table 3-5. Power-On Self-Test Error Messages................................................................................3-16
Table 3-6. BIOS Setup Menus and Parameters .................................................................................3-20
Table 4-1. OmniBook Replaceable Parts.............................................................................................4-3
Table 4-2. Accessory Replaceable Parts..............................................................................................4-5
Table 4-3. Assembly-Component Breakdown.....................................................................................4-6
Table 4-4. Part Number Reference......................................................................................................4-7
Table 5-1. OmniBook 3000 TFT XGA Display Quality Guidelines ...................................................5-3

vi HP OmniBook 3000
Introduction
This service manual provides reference information for the HP OmniBook 3000. 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.hp.com/go/omnibook
(http://www2.hp.com/go/omnibook,
European mirror)
No usage restriction.
HP MCD Internal Web http://webmcd.cv.hp.com Restricted to HP intranet access only.
America Online Keyword: HP Call [phone] for membership
within the US.
CompuServe* GO HP Call [phone] for membership
within the US.
HP Bulletin Board Service** [phone] (US only) Refer to the latest Product Support
Plan for non-US BBS numbers.
HP First (automated fax) [phone] US and Canada.
[phone] Outside US and Canada.
[phone] Reseller support number (enter outlet
id number).
HP Support Assist CD-ROM [phone] US and Canada.
[phone] Outside US and Canada.
HP MCD Service Engineer [email protected] Email address for service related
questions and issues.
*Baud rates = 300-28.8; Parity = E; Data bits = 7; Stop bits = 1.
** Baud rates = 300-28.8; Parity = N, Data bits = 8; Stop bits = 1.

HP OmniBook 3000 Product Information 1-1
1
Product Information
The HP OmniBook 3000 represents a new category of HP notebook computers featuring the latest
mobile technologies available. It uses high-speed Intel Pentium processors with MMX technology, a
large 13.3-inch TFT display, and high-capacity hard drives.
This chapter describes
• Features and operation (below).
• Specifications (page 1-7).
• Internal design (page 1-9).
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.
Figure 1-1. OmniBook - Front View
Microphone
Status panel
TouchPad
Display latch
Main battery
Floppy drive or other
plug-in module
Stereo speakers
Power button
Power light

1-2 Product Information HP OmniBook 3000
Figure 1-2. OmniBook - Side View
Figure 1-3. OmniBook - Back View
Table 1-1. Summary of Features
Processor Intel Pentium, 233 or 200 MHz with MMX technology.
512-KB burst-synchronous L2 cache.
Memory 16 MB RAM on motherboard.
Expandable to 144 MB.
Display 13.3-inch TFT XGA display.
Up to 64K colors.
Video PCI local bus video.
128-bit graphics controller with 2 MB video RAM.
Zoomed Video enabled.
PC Card One Type III or two Type II 16-/32-bit PC Card slots.
CardBus enabled.
Operating System Windows 95 preinstalled.
Windows NT 4.0 certified.
Desktop Management Interface Preinstalled DMI 1.1 software with HP TopTools.
Advanced Power Management APM 1.2
Power States On, Standby, Suspend, Hibernate, Off.
PC Card slots
Eject buttons
Audio line-in
Microphone-in
Headphone-out
AC adapter
Kensington lock Hard disk drive
Infrared
Serial
Parallel
System-off button
External
monitor
Docking PS/2
Universal Serial Bus (USB)

HP OmniBook 3000 Product Information 1-3
Turning the OmniBook On and Off
• On. Press the blue power button to turn the computer on.
• Standby. Occurs automatically if the computer is inactive for about 2 minutes.
• Suspend. Press the blue power button briefly (about 1 second) to suspend activity when the
OmniBook is on. The computer resumes your previous work session when you turn it back on.
Closing the lid (for more than 2 seconds) also suspends the computer. (If an external monitor is
connected, closing the lid merely turns off the built-in display and turns on the external display.)
• Hibernate. Press Fn+F12. The computer completely shuts down, but your current work session is
first saved to disk. The computer will reboot and restore your previous session when you turn it
back on.
• Off. Press the blue power button for more than 4 seconds to completely shut down the computer.
Unsaved data is lost. The computer will reboot when you turn it back on.
Table 1-2. Activating Power Modes
Power Mode To Enter Mode To Turn Back On
Standby
(display off) Allow time-out
or
press Fn+S.
Press any key or the pointing device
to display your current session.
Suspend
(low power, “instant-on”) Press blue power button for about
1second
or
close the lid (without external monitor)
or
click Start, Suspend
or
allow time-out.
Press blue power button for “instant-
on” to your current session.
Hibernate
(off, session saved) Press Fn+F12
or
allow time-out.
Press blue power button to turn on,
reboot, and restore session.
Off
(off, nothing saved) Press blue power button longer than
4seconds
or
click Start, Shut Down.
Press blue power button to turn on
and reboot.
Table 1-3. Power Mode Descriptions
Power Mode Condition
Standby Reduced-power/stopped state. Everything is in a reduced-power state. Network devices are
maintained. Your current work session continues at turn-on (any key-press).
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 (if plug-and-
play).

1-4 Product Information HP OmniBook 3000
Checking the Status of the OmniBook
The OmniBook status panel, located above the keyboard (on the icon PCA), contains indicators that
show the current status of the OmniBook. The indicators in the status panel show keyboard status, drive
status, and power status.
Table 1-4. Status Panel Indicators (Icon PCA)
Indicator Meaning
AC power. The ac adapter is plugged in.
Blinks when the battery is being charged.
Battery status. Shows the approximate charge level of the battery relative to a full
charge. Each bar represents a 10% charge.
The upper and lower triangles indicate the presence of main (upper) and secondary
(lower) batteries. A triangle blinks when that battery is in use. The main battery
charges first, discharges last.
If two batteries are installed and the ac adapter is connected, the indicator shows the
level of the battery being charged. If the ac adapter is not connected, indicator shows
the combined charge of both batteries. Press Fn+F6 to show separate battery levels.
Battery low. The outline blinks when the battery charge is critically low. The
OmniBook also beeps.
Defective battery. No battery activity; no charging.
Overheated battery. The battery is too hot to charge.
CD-ROM drive or hard disk drive. The OmniBook is accessing one of these built-in
drives.
Floppy disk drive. The OmniBook is accessing the floppy disk drive.
PC Card. There is activity between the PC Card and the computer.
(scrolling)
Suspend mode. These symbols flash from left to right when the OmniBook is
suspended (turned off by pressing the power button briefly).
If ac power is not connected, the green power light also blinks slowly.
Caps Lock. Caps Lock is active.
Num Lock. Num Lock is active (Fn+F9).
Keypad Lock. The built-in embedded keypad is active (Fn+F8). Num Lock must also
be on for the numeric keys.
Scroll Lock. Scroll Lock is active (Fn+F10).
The green power light (located on the icon PCA) indicates the power state. The green lights on the main
battery or secondary battery indicate its charge level.
Table 1-5. Indicator Lights
Light Meaning
Power Light
Steady green light
Blinking light
No light
Battery is charging.
Battery is not charging (ac power connected), or
computer is Suspended (no ac power).
Battery is not charging (no ac power).
Battery Lights Show battery charge level only while the button is pressed on the battery.

HP OmniBook 3000 Product Information 1-5
Using Functions Keys (F1 through F12)
The top row of the keyboard has twelve function keys that serve as hot keys—shortcut key sequences—
for various system controls.
Table 1-6. Function Keys (F1-F12)
Hot Keys 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, if available).
Fn + F4 Increases the display’s contrast (non-TFT displays only, if available).
Fn + F5 Switches among the built-in display, an external display, and simultaneous displays.
Fn + F6 (hold) For use with two batteries: The battery indicator in the status panel briefly displays the
individual battery status for each battery, then resumes displaying the combined
battery status.
Fn + F7 Toggles the sound on and off (mutes sound).
Fn + F8 Toggles the built-in 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 + F9 Toggles Num Lock (numeric functions for the keypad) on and off.
Fn + F10 Toggles Scroll Lock on and off.
Fn + F12 Enters Hibernate mode.
Fn + R Enters Suspend mode.
Fn + S Enters Standby mode.
Fn + UP-ARROW Increases sound volume.
Fn + DOWN-ARROW Decreases sound volume.
Resetting the OmniBook
1. Push the System-Off button—insert a pen or straightened paperclip into the hole on the back panel.
(The switch is on the motherboard.)
–or–
Press the blue power button for 4 seconds. (The switch is on the icon PCA.)
2. After the computer shuts down, press the blue power button to turn it on.
Note
The OmniBook can boot from a CD under these conditions:
• If the boot order is defined in BIOS Setup with the CD-ROM drive before the hard drive,
• If you have an internal CD-ROM drive installed, and
• If you have a bootable CD in the drive, such as the OmniBook Recovery CD.

1-6 Product Information HP OmniBook 3000
System Resources
Below are default values for system resources. To see other, non-default possibilities, use the BIOS
Setup utility (see page 3-20), which lists port and audio device configurations in the System Devices
menu.
The tables in this section show typical resource usage as set up by the OmniBook BIOS. Plug-and-play
operating systems, drivers, and BIOS Setup settings may change some of the entries.
Table 1-7. System Interrupts
0System timer
1Keyboard
2Cascade IRQ 9
3Free (or COM2 infrared port, if enabled)
4COM1 (serial port)
5Crystal sound
6Floppy drive
7LPT1 (ECP parallel port)
8Real-time clock
9Free (or MIDI, if enabled)
10 Universal Serial Bus (USB) - assigned by Windows 95 driver
11 CardBus controller - assigned by Windows 95 driver
12 TouchPad
13 Numeric data processor
14 Internal hard disk (primary IDE controller)
15 Internal CD-ROM drive (secondary IDE controller)
Table 1-8. System Memory
00000 - 9FFFF System memory
A0000 - BFFFF Video
C0000 - CBFFF Video BIOS
CC000 - DFFFF Free (see below)
E0000 - FFFFF System BIOS
Valid uses for memory addresses CC000-DFFFF:
• Upper memory blocks (UMBs).
• PC card memory windows.

HP OmniBook 3000 Product Information 1-7
Table 1-9. System Input/Output Addresses (100-3FF)
170-177 Secondary HDD controller (internal CD-ROM)
1F0-1F7 Internal hard disk
200-207 Joystick
220-22F Crystal sound
376 Secondary HDD controller (internal CD-ROM)
378-37F LPT1 (printer port)
388-38B Sound
3B0-3BB VGA adapter
3C0-3DF VGA adapter
3E0-3E1 PCMCIA controller
3F0-3F5 Floppy controller
3F6 Primary HDD controller
3F7 Floppy controller
3F8-3FF COM1 (serial port)
Table 1-10. DMA Channels
0Sound record
1Sound playback
2Floppy drive
3LPT1 (ECP parallel port)
4Cascade
5Free
6Free
7Free
Specifications
The following tables list specifications for the OmniBook and its accessories.
Table 1-11. HP OmniBook 3000 Specifications
Physical Attributes Size: 30.30 × 23.73 × 5.24 cm (11.93 × 9.34 × 2.06 in) closed.
Weight: 3.03 kg (6.7 lb).
Processor and
Bus Architecture 233- or 200-MHz Intel Pentium processor with MMX technology.
Intel sub-2V low-power processor.
512-KB burst-synchronous L2 cache.
32-bit PCI bus.
Graphics 13.3-inch XGA active-matrix (TFT) display (1024 × 768 × 64K colors).
PCI local bus video; 128-bit graphics controller with 2-MB video RAM.
Zoomed Video enabled.
Power Rechargeable Lithium Ion battery with built-in four-level fuel gauge.
Battery recharges to full in less than 2.5 hrs using AC adapter while PC is on.
Low-battery warning.
Suspend/resume capability.
Power states: On, Standby, Suspend, Hibernate, Off.
Battery life: 2.5-3 hrs (varies with type of usage) for one battery.
Optional secondary battery doubles operating time.
AC adapter 100 to 240 Vac (50 to 60 Hz) input; 19 Vdc, 2.4 A output.

1-8 Product Information HP OmniBook 3000
Mass Storage 4.0-billion-byte or 2.1-billion-byte removable hard drive.
1.44-MB internal/external floppy drive (swap with optional 20X CD-ROM drive or
optional second battery).
Optional 20X CD-ROM drive (20X maximum, 14X average).
RAM 16-MB RAM on motherboard.
Two slots for RAM expansion up to 144 MB.
Audio System 16-bit, Sound Blaster Pro-compatible.
MIDI support with optional port replicator.
Stereo sound via two built-in speakers.
Built-in microphone.
Line-in, line-out, and microphone-in.
3D enhanced audio.
Keyboard and
Pointing Device 87/88-key touch-type QWERTY keyboard.
Embedded numeric keypad.
12 function Fn keys.
TouchPad.
Input/Output Universal Serial Bus (USB).
9-pin, 115,200-bps serial (16550 UART).
25-pin bidirectional ECP/EPP parallel.
Video-out (up to 1024 × 768 × 64K colors) at up to 75-Hz refresh rate.
PS/2 keyboard/mouse.
4-Mbps IrDA-compliant infrared.
Expandability One Type III or two Type II 16-/32-bit PC Card slots.
CardBus enabled.
Plug-in module bay for floppy drive or optional accessory modules.
Optional port replicator with two USB, serial, parallel, video-out (up to 1024 × 768 ×
64K colors), keyboard, PS/2 mouse, audio, MIDI/joystick, and power-in ports.
Preinstalled Software Microsoft Windows 95.
Windows 95-compatible Plug and Play.
Advanced Power Management (APM 1.2).
DMI 1.1 under Windows 95 with HP TopTools.
MacAfee VirusScan.
Online documentation.
OmniBook Recovery CD-ROM included.
Centralized worldwide BIOS and driver update service.
Windows NT Support Windows NT 4.0 certified.
APM 1.2 and PC Card Plug-and-Play support for Windows NT 4.0.
Security Features Password protection.
DMI-accessible electronic serial number.
Kensington Microsaver lock slot.
Environmental Limits 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).
OmniBook Models
F1391A
F1392A HP OmniBook 3000 CTX 5/200 Model 2100, XGA TFT display. HP OmniBook 3000 CTX 5/233 Model 4000, XGA TFT display.

HP OmniBook 3000 Product Information 1-9
Table 1-12. HP OmniBook 3000 Accessories
Port Replicator
F1381A Video-out (up to 1024 × 768 × 64K colors) at up to 75-Hz refresh rate.
Two Universal Serial Bus (USB) ports.
PS/2 keyboard.
PS/2 mouse.
Parallal: 25-pin bidirectional printer port (EPP/ECP).
Serial: 9-pin 115,200-bps RS-232.
Audio: speaker-out, line-in, microphone-in.
Power-in jack.
MIDI/joystick port.
Kensington lock slot.
CD-ROM Drive
F1387A Low-power, internal installation (plug-in module).
20X-maximum-speed, 14X-average-speed.
IDE/ATAPI interface.
Compatibility: CD-ROM modes 1 and 2, Photo CD, CD Plus, CDXA, CD-1.
Other Accessories
F1369A
F1363A
F1364A
F1365A
F1385A
F1386A
F1384A
F1388A
F1382A
F1383A
F1377A
F1379A
F1380A
8120-6313
8120-6314
8120-6315
8120-6312
8120-6316
8120-6317
8120-8373
Monitor stand.
16-MB RAM expansion module.
32-MB RAM expansion module.
64-MB RAM expansion module.
2.1-billion-byte hard disk drive.
4.0-billion-byte hard disk drive.
3.5" internal/external floppy disk drive and cable (plug-in module).
Internal 100-MB Zip drive (plug-in module).
Standard Lithium-Ion battery pack.
Secondary Lithium-Ion battery pack (plug-in module).
AC adapter.
Automobile adapter.
Replacement floppy disk drive cable.
Replacement power cord (U.S., Canada, Taiwan).
Replacement power cord (Europe).
Replacement power cord (Hong Kong, Singapore, U.K.).
Replacement power cord (Australia).
Replacement power cord (Japan).
Replacement power cord (India, South Africa).
Replacement power cord (People’s Republic of China).

1-10 Product Information HP OmniBook 3000
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 all 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 1-10—it lists the roles the replaceable modules
play in each of the functional subsystems.
PCMCIA
Cards
CPU
Module
Audio
PCA
HardDisk
Drive
USB
PCA
FloppyDrive
or
Plug-In
Module
Main
Battery
KeyboardRAM
BoardsHeatSink
Assembly
LVDS
PCA
InverterPCA
Icon PCA
LCD
ModuleTop Case Assembly(TouchPad,
Speakers,Microphone)
IR
PCA
Motherboard
PCA
System
BIOS
Kybd
BIOS
Figure 1-4. Replaceable Module Diagram
The power switch
and the lid switch
are contained on
the Icon PCA.
All external
connections
(except USB and
IR) are made to the
motherboard.

HP OmniBook 3000 Product Information 1-11
Table 1-13. Functional Structure
Function Modules Roles
Bootup CPU module
Motherboard
System BIOS IC
Keyboard BIOS IC
Floppy disk drive
Hard disk drive
Main processor (MMO).
Primary system circuitry.
Code for basic system functions.
Code for keyboard functions.
First source of disk-based startup code.
Second source of disk-based startup code.
Processor CPU module
Motherboard Main processor, numeric data processor, L1 and L2 cache. Primary system circuitry.
Memory Motherboard
RAM boards First 16 MB of RAM, video RAM. Optional, additional RAM.
Power Battery
Motherboard
AC adapter
Power storage.
Power supply, ac adapter socket.
AC-to-dc converter.
Display Motherboard
LCD module
LVDS PCA
Inverter PCA
Display/graphics controller, video RAM.
Display output, backlight.
Display drivers, signal processing. (Low-Voltage Differential Signaling)
Power converter for backlight.
Hard disk Motherboard
Hard disk drive Hard disk controller. Hard disk mechanism.
Floppy drive Motherboard
Floppy disk drive Floppy disk controller. Floppy disk mechanism.
Keyboard Motherboard
Keyboard BIOS IC
Keyboard
Keyboard controller.
Keyboard BIOS.
Key switches.
TouchPad Motherboard
Top case assembly Keyboard and PS/2 controller. TouchPad PS/2 device.
Audio Motherboard
Audio PCA
Top case assembly
Speaker amplifier, external audio jacks.
Audio controller, wave synthesizer, headphone amplifier.
Microphone, speakers.
Serial Motherboard I/O controller, serial connector.
Parallel Motherboard I/O controller, parallel connector.
Infrared Motherboard
IR PCA
Icon PCA
I/O controller.
Infrared transmitter/receiver.
Pass-through connection.
PS/2 port Motherboard Keyboard and PS/2 controller, PS/2 connector.
USB Motherboard
USB PCA I/O controller. USB power controller, USB connector.
Docking port Motherboard Docking logic, docking connector.
PCMCIA Motherboard PCMCIA controller, PCMCIA connectors.

HP OmniBook 3000 Removal and Replacement 2-1
2
Removal and Replacement
This chapter tells you how to remove and replace the following components and assemblies. The ones
marked by •are user-replaceable.
•
AC adapter (table on page 2-27).
Audio jack holder (table on page 2-27).
Audio PCA (table on page 2-27).
•
Battery (page 2-1).
•
BIOS cover (page 2-8).
Bottom case (page 2-21).
CPU module (table on page 2-27).
Display assembly (page 2-8).
Display case (page 2-13).
Display latch, spring (table on page 2-27).
•
Feet (page 2-8).
•
Hard disk drive (page 2-4).
Hinge (table on page 2-27).
•
Hinge cover (page 2-8).
Icon/MB cable (table on page 2-27).
Icon PCA (table on page 2-27).
•
Icon window cover (page 2-8).
Inverter PCA (table on page 2-27).
Inverter/MB cable (table on page 2-27).
•
I/O door (page 2-8).
IR/icon cable (table on page 2-27).
IR lens (table on page 2-27).
IR PCA (table on page 2-27).
Keyboard (page 2-16).
Keyboard BIOS IC (page 2-25).
LCD bracket (page 2-13).
LCD module (page 2-11).
LCD/LVDS cable (table on page 2-27).
Lock plate (table on page 2-27).
LVDS PCA (table on page 2-27).
Motherboard (page 2-20).
•
Plug-in accessory modules (page 2-3).
•
Port replicator (table on page 2-27).
•
RAM board (page 2-6).
•
RAM cover (page 2-8).
System BIOS IC (page 2-25).
Top case and TouchPad (page 2-17).
USB PCA (table on page 2-27).
Caution
Always provide proper grounding when performing repairs. Without proper grounding, an
electrostatic discharge may damage the OmniBook and its components.
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 screw.)

2-2 Removal and Replacement HP OmniBook 3000
Table 2-1. Required Equipment
•
Small Phillips screwdriver, preferably magnetized.
•
5 mm hex driver.
•
Pointed knife or probe.
•
Three small flat-blade screwdrivers (or equivalent tools for prying).
•
IC insertion/removal tool (F1371-60904).
Table 2-2. Recommended Screw Torques
Screw Thread Size Torque (kgf•cm) Torque (in•lbf)
M2.0 2.0 – 2.5 1.7 – 2.2
M2.5 2.5 – 3.0 2.2 – 2.6
M3.0 4.5 – 5.5 3.9 – 4.8