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.
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.
Table 5-3. Service Notes......................................................................................................................5-5
Table 5-4. Obsolete Repair Parts .........................................................................................................5-5
HP OmniBook 2100/3000/3100v
Introduction
This service manual provides reference information for the HP OmniBook 2100/3000/3100. 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
SourceAddress or NumberComments
HP External Webhttp://www.hp.com/omnibook
(http://www2.hp.com/omnibook,
European mirror)
HP US Reseller Webhttp://partner.americas.hp.comRestricted to Authorized Resellers only.
HP Asia Pacific Channel
Support Centre for DPSP
Partners
America OnlineKeyword: HPCall (800) 827-6364 for membership
CompuServe*GO HPCall (800) 524-3388 for membership
HP Bulletin Board ServiceRefer to the latest Product Support Plan
HP First (automated fax)(800) 333-1917US and Canada.
HP Support Assist CD-ROM(800) 457-1762US and Canada.
http://www.hp.com.auRestricted to DPSP Partners only.
(801) 344-4809Outside US and Canada.
(800) 544-9976Reseller support number (enter outlet id
(801) 431-1587Outside US and Canada.
No usage restriction.
within the US.
within the US.
for non-US BBS numbers.
number).
About This Edition
This edition of this service manual contains the following major changes from the previous edition:
• New OmniBook 2100 products.
• New OmniBook 2100 Pentium II CPU module and related parts.
• New OmniBook 2100/3100 RAM board configurations.
• Updated part numbers.
• Insert current service notes.
viHP OmniBook 2100/3000/3100
Product Information
The HP OmniBook 2100/3000/3100 represents a category of HP notebook computers featuring the
latest mobile technologies. They use high-speed Intel Pentium processors with MMX technology and
Pentium II processors, large 12.1-inch and 13.3-inch displays, and high-capacity hard drives.
Table 1-1. OmniBook 2100/3000/3100 Models
OmniBook
Product *
OmniBook 2100
F1580x ***Pentium
F1581x ***12.1-inch
F1584x ***Pentium
F1597
x
F1598
x
F1599
x
OmniBook 3100
F1582
x
OmniBook 3000
F1391APentium
F1392APentium
F1393APentium
F1394A16 MB
CPU **DisplayHard DriveFloppy DriveCD-ROM
Drive
233 MHz
200 MHz
Pentium II
233 MHz
Pentium II
266 MHz
Pentium
266 MHz
200 MHz
233 MHz
266 MHz
12.1-inch
SVGA DSTN
SVGA TFT
12.1-inch
SVGA DSTN
12.1-inch
SVGA TFT
13.3-inch
XGA TFT
13.3-inch
XGA TFT
3.2 GB
(F1588A)
2.1 GB
(F1385A)
3.2 GB
(F1588A)
4.0 GB
(F1386A)
4.0 GB
(F1386A)
2.1 GB
(F1385A)
4.0 GB
(F1386A)
1.44 MB
(F1384A)
1.44 MB
(F1384A)
1.44 MB
(F1384A)
CD-ROM
(F1587A)
CD-ROM
(F1587A)
None16 MB
Standard
RAM
32 MB
32 MB
32 MB
1
*For the products listed:
"A" suffix means Windows 95 installed, Windows NT not available.
"
x
" suffix means
"N" or "NT" for Windows NT 4.0 installed (sales channel distinction only), or
"W" or "WT" for Windows 95 installed (sales channel distinction only).
**Intel Mobile Pentium or Pentium II processor.
*** Nickel-metal-hydride main battery is standard. All others have lithium-ion main battery.
x
Unpublished OmniBook 2100/3100 models with no CD-ROM drive (and equivalent model): F1583
x
F1592
(F1580x), F1593x (F1581x), F1594x (F1582x).
(F1584x),
HP OmniBook 2100/3000/3100Product Information1-1
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.
*Intel Mobile Pentium or Mobile Pentium II processor.
Pentium II (266 or 233
MHz), or Pentium (266,
233, or 200 MHz) with
MMX technology. 512KB burst-synchronous
L2 cache.
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 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 (266, 233, or
200 MHz) with MMX
technology. 512-KB
burst-synchronous L2
cache.
16 MB RAM on
motherboard.
Expandable to
144 MB.
13.3-inch TFT XGA
display.
PCI local bus video.
128-bit graphics
controller with 2 MB
internal video RAM.
Up to 64K colors
(XGA). Zoomed Video
enabled.
Windows 95
preinstalled.
(Windows NT 4.0
certified.)
DMI 1.1.
HP TopTools 2.0.
APM 1.2.APM 1.2.
On, Standby,
Suspend, Hibernate,
Off.
PS/2
Pentium II (266 or 233
MHz), or Pentium
(266 MHz) with MMX
technology. 512-KB
burst-synchronous L2
cache (high-speed
bus for Pentium II).
32 MB RAM on
motherboard.
Expandable to
160 MB.
14.1- or 13.3-inch TFT
XGA display.
PCI local bus video.
128-bit graphics
controller with 2 MB
internal video RAM.
Up to 64K colors
(XGA). Zoomed Video
enabled.
Windows 95 or
Windows NT 4.0
preinstalled.
DMI 2.0.
HP TopTools 2.6.
ACPI compliant.
On, Standby,
Suspend, Hibernate,
Off.
Pentium II (266 MHz).
512-KB burstsynchronous L2
cache (high-speed
bus).
32 MB RAM on
motherboard.
Expandable to
288 MB.
14.1-inch TFT XGA
display.
PCI local bus video.
64-bit graphics
controller with 4 MB
external video RAM.
Up to 16M colors
(XGA). Zoomed Video
enabled.
Windows 95 or
Windows NT 4.0
preinstalled.
DMI 2.0.
HP TopTools 2.6.
APM 1.2.
ACPI compliant.
On, Standby,
Suspend, Hibernate,
Off.
HP OmniBook 2100/3000/3100Product Information1-3
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 ModeTo Enter ModeTo 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.
*Does not suspend if Video Display Device set to Both in BIOS Setup.
Press Fn+S
–or–
allow time-out.
Press blue power button for
about 1 second
–or–
close the lid*
–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.
1-4Product InformationHP OmniBook 2100/3000/3100
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)
IndicatorMeaning
AC power. The ac adapter is plugged in.
OmniBook 3000:
Battery status. Shows the approximate charge level of the battery relative to a full
charge. Each bar represents approximately 10% charge.
The upper and lower triangles indicate the presence of the main battery (upper) and a
second battery (lower). A triangle blinks when that battery is charging. The main
battery charges first, discharges last.
OmniBook 2100/3100: If two batteries are installed, the indicator shows the combined
charge of both batteries.
OmniBook 3000: 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, the indicator shows the combined charge of both batteries.
Press Fn+F6 to show separate battery levels.
Battery low. (Triangle, but no bars.) The OmniBook also beeps.
Defective battery. (No triangle, no bars.) No charging, even though ac adapter is
present.
OmniBook 3000:
Overheated battery. (No triangle, top bar.) The battery is too hot to charge. Not
necessarily a defective battery.
Internal drive. The OmniBook is accessing one of the internal drives: the hard disk
drive, CD-ROM drive, or other plug-in module drive.
Floppy disk drive. The OmniBook is accessing the floppy disk drive.
Blinks
when the battery is being charged.
PC Card. There is activity between the PC Card and the computer.
Caps Lock. Caps Lock is active.
Num Lock. Num Lock is active.
Keypad Lock. The embedded keypad is active (Fn+F8). Num Lock must also be on
for the numeric keys—otherwise, cursor control is active.
Scroll Lock. Scroll Lock is active.
OmniBook 3000:
(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.
HP OmniBook 2100/3000/3100Product Information1-5
The green power light in the hinge area (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 (Icon PCA and Battery)
LightMeaning
OmniBook 2100/3100:
Power Light
Steady green light
Blinking green light
No light
OmniBook 3000:
Power Light
Steady green light
Blinking green light
No light
Battery Lights
OmniBook is running (On mode).
OmniBook is suspended (Suspend or Standby mode).
OmniBook is off (Off or Hibernate mode).
Battery is charging (ac power connected).
Battery is not charging (ac power connected), or
computer is Suspended (no ac power).
Battery is not charging (no ac power).
Show battery charge level only while the button is pressed on the battery.
The number of lights that turn on indicates the charge.
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. For an external keyboard, CTRL+ALT is normally equivalent
to the Fn key.
Table 1-6. Function Keys (F1-F12)
Hot KeysEffect
Fn + F1Decreases the display’s brightness.
Fn + F2Increases the display’s brightness.
Fn + F3Decreases the display’s contrast (DSTN displays only, if available).
Fn + F4Increases the display’s contrast (DSTN displays only, if available).
Fn + F5Switches 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.
Fn + F7Toggles the sound on and off (mutes sound).
Fn + F8Toggles 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 + F9Toggles Num Lock (numeric functions for the keypad) on and off.
Fn + F10Toggles Scroll Lock on and off.
Fn + F12Enters Hibernate mode.
Fn + REnters Suspend mode.
Fn + SEnters Standby mode.
Fn + UP-ARROWIncreases sound volume.
Fn + DOWN-ARROWDecreases sound volume.
1-6Product InformationHP OmniBook 2100/3000/3100
Resetting the OmniBook
1. Use a pen or a straightened paper clip to push the system-off button in the hole on the back panel.
(The switch is on the motherboard.)
–or–
Press the blue power button until the display shuts down. (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 if all these conditions are true:
• You have an internal CD-ROM drive installed,
• You have a bootable CD in the drive, such as the OmniBook Recovery CD, and
• You select the CD-ROM 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 onetime selection.
HP OmniBook 2100/3000/3100Product Information1-7
System Resources
Below are default values for system resources. To see other, non-default possibilities, use the BIOS
Setup utility (see page 3-23), which lists port and audio device configurations in the System Devices
menu.
The tables in this section show typical resource usage as set up by the OmniBook BIOS. Plug-andplay 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
OmniBook 2100/3100
9Free
10USB and CardBus - assigned by Windows driver
11Free
OmniBook 3000
9Free (or MIDI, if enabled)
10USB - assigned by Windows driver
11CardBus - assigned by Windows driver
12Pointing device
13Numeric data processor
14Internal hard disk (primary IDE controller)
15Internal CD-ROM drive (secondary IDE controller)
Size: 30.3 × 23.7 × 5.2 cm (11.9 × 9.3 × 2.1 in) closed.
Weight: 3.0 kg (6.7 lb).
200-, 233-, or 266-MHz Intel Mobile Pentium processor with MMX technology or 233- or
266-MHz Intel Mobile Pentium II processor.
Intel sub-2V low-power processor.
512-KB burst-synchronous L2 cache.
32-bit PCI bus.
PCI local bus video; 128-bit graphics controller with 2-MB video RAM.
Zoomed Video enabled in one PC Card slot.
Rechargeable lithium-ion or nickel-metal-hydride battery with built-in four-level gauge.
AC adapter 100–240 Vac (50–60 Hz) input; 19 Vdc, 3.16 A output.
OmniBook 3000:
Rechargeable lithium-ion battery with built-in four-level gauge.
AC adapter: 100–240 Vac (50–60 Hz) input; 19 Vdc, 2.4 A output.
Low-battery warning.
Suspend/resume capability.
Power states: On, Standby, Suspend, Hibernate, Off.
Battery life: up to 3 hours (varies with type of usage) for one battery.
Optional secondary lithium-ion battery doubles operating time.
Advanced Power Management (APM 1.2).
ACPI 1.0 ready (OmniBook 2100/3100 only).
4.0-GB, 3.2-GB, or 2.1-GB removable hard drive.
1.44-MB internal/external floppy drive (swap with optional modules or secondary battery).
Removable CD-ROM drive.
Optional removable Zip drive.
32-MB RAM on motherboard.
One or two slots for RAM expansion up to maximum of 160 MB (Pentium, one slot),
192 MB (Pentium, two slots), or 288 MB (Pentium II) using HP memory modules,
depending on the processor type and number of slots.
OmniBook 3000:
16-MB RAM on motherboard.
Two slots for RAM expansion up to 144 MB using HP memory modules.
1-10Product InformationHP OmniBook 2100/3000/3100
Audio System
Keyboard and
Pointing Device
Input/Output
Expandability
Preinstalled
Software
Security FeaturesOmniBook 2100/3100:
Environmental
Limits
16-bit, Sound Blaster Pro-compatible.
Stereo sound via two built-in speakers.
Built-in microphone.
Line-in, line-out, and microphone-in.
3D enhanced audio.
MIDI support with optional port replicator (OmniBook 3000 only).
87/88-key touch-type full-size QWERTY keyboard with 101/102-key emulation.
Embedded numeric keypad.
12 function Fn keys.
Touch pad.
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 85-Hz refresh rate.
PS/2 keyboard/mouse.
4-Mbps IrDA-compliant infrared.
Docking connector.
One Type III or two Type II 16-/32-bit PC Card slots.
CardBus enabled.
Plug-in module bay for accessory modules.
OmniBook 2100/3100:
Full line of optional docking products: port replicator, mini dock, and docking system.
OmniBook 3000:
Optional port replicator.
OmniBook 2100/3100:
Microsoft Windows 95 or Windows NT 4.0.
Windows 95-compatible Plug and Play.
Windows NT 4.0 PC Card Plug-and-Play.
DMI 2.0 with HP TopTools 2.6 or 3.0.
OmniBook 3000:
Microsoft Windows 95.
Windows 95-compatible Plug and Play.
DMI 1.1 under Windows 95 with HP TopTools 2.0.
Windows NT 4.0 certified, with APM 1.2 and PC Card Plug-and-Play support.
Advanced Power Management (APM 1.2).
MacAfee VirusScan.
Online documentation.
OmniBook Recovery CD-ROM included.
Centralized worldwide BIOS and driver update service.
Two-level password protection.
Drive lock.
Password for docking eject.
OmniBook 3000:
One level password protection.
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).
HP OmniBook 2100/3000/3100Product Information1-11
Major ICsOmniBook 2100/3100:
CPU: Intel Mobile Pentium or Pentium II.
South Bridge: PIIX4.
Video: NeoMagic NM2160 (NMG4).
Audio: Crystal CS4237B.
CardBus: TI PCI1220.
Keyboard controller: National PC87570.
Super I/O: SMC 669FR.
OmniBook 3000:
CPU: Intel Mobile Pentium.
South Bridge: PIIX4.
Video: NeoMagic NM2160 (NMG4).
Audio: Crystal CS4237B.
CardBus: TI PCI1131.
Keyboard controller: Intel 87C51SL.
Super I/O: SMC 669FR.
Table 1-12. HP OmniBook 2100/3000/3100 Accessories
AccessoryDescriptionOmniBookCompat.
2100/310030004100/7100
Memory
F1363A16-MB EDORAM expansion module (see page 2-7)
F1364A32-MB EDORAM expansion module (see page 2-7)
F1365A64-MB EDORAM expansion module (see page 2-7)
F1456A32-MB SDRAM expansion module
F1457A64-MB SDRAM expansion module (see page 2-7)
F1622A128-MB SDRAM expansion module (see page 2-7)
Hard Drives
F1385A2.1-GB internal hard disk drive
F1386A4.0-GB internal hard disk drive
F1588A3.2-GB internal hard disk drive
Modules
F1380AReplacement floppy disk drive cable for external use
F1384AInternal/external floppy disk drive module and cable
F1387A20X CD-ROM drive module
F1388A100-MB Zip drive module
F1587A24X CD-ROM drive module
••
••
••
••
••
••
••
••
••
••
•
•
•
•
1-12Product InformationHP OmniBook 2100/3000/3100
AccessoryDescriptionOmniBookCompat.
2100/310030004100/7100
Power Options
F1377A45-watt ac adapter
F1379AAutomobile adapter
F1382AStandard lithium-ion battery pack (primary)
F1383ASecondary lithium-ion battery pack (plug-in module)
F1454A60-watt ac adapter
F1455A75-watt auto/airline power adapter
F1589ANickel-metal-hydride battery (primary)
8120-6312
F1623A10/100-Mbps Ethernet + 56-Kbps modem PC Card by
F1626A10/100-Mbps Ethernet PC Card by 3Com
F1627A56-Kbps modem PC Card by Xircom
TCM3C58910-Mbps Ethernet PC Card by 3Com
Docks
F1369AMonitor stand
F1381APort replicator
F1451APort replicator
F1452AMini dock
F1453AMonitor stand (short) for F1451A and F1452A
F1477ADocking system and monitor stand (tall)
F1585ADocking bay module adapter
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 (People’s Republic of China)
Replacement power cord (Hong Kong,Singapore,U.K.)
Xircom
••
••
••
•••
•
•••
••
•••
•••
•••
•••
••
••
••
••
•
•
•
•
•
HP OmniBook 2100/3000/3100Product Information1-13
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 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 1-15—it lists the roles that the replaceable
modules play in each of the functional subsystems.
IR
LCD
Module
Top Case
(Touch pad, Speakers,
Microphone)
Inverter PCA
LVDS
PCA*
PCA
Icon PCA
PCMCIA
Cards
CPU
Module
Audio
PCA
Hard Disk
Drive
Keyboard
Kybd
BIOS**
Motherboard
PCA
RAM
Boards
System
BIOS**
Floppy Drive
Fan
Heatsink
USB
PCA
or
Plug-In
Module
Main
Battery
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.
* The LVDS PCA is
present only with a 13"
display.
** One BIOS IC on the
OmniBook 2100/3100
contains the system and
keyboard BIOS.
1-14Product InformationHP OmniBook 2100/3000/3100
Table 1-13. Functional Structure
FunctionModulesRoles
Bootup
Processor
Memory
Power
Display
Hard disk
Floppy drive
Keyboard
Touch pad
Audio
Serial
CPU module
Motherboard
System BIOS IC**
Keyboard BIOS IC**
Floppy disk drive
Hard disk drive
CPU module
Motherboard
Motherboard
RAM boards
Battery
Motherboard
AC adapter
Icon PCA
Motherboard
LCD module
LVDS PCA*
Inverter PCA
Motherboard
Hard disk drive
Motherboard
Floppy disk drive
Motherboard
Keyboard BIOS IC**
Keyboard
Motherboard
Top case
Motherboard
Audio PCA
Top case
MotherboardI/O controller, serial connector.
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.
Main processor, numeric data processor, L1 and L2 cache.
Primary system circuitry.
First 16 MB (OmniBook 3000) or 32 MB (OmniBook 2100/3100) of
RAM, video RAM.
Optional, additional RAM.
Power storage.
Power supply, ac adapter socket, system-off switch.
AC-to-dc converter.
Power switch, lid switch.
Display/graphics controller, video RAM.
Display output, backlight.
Display drivers, signal processing. (Low-voltage differential signaling)
Power converter for backlight.
Hard disk controller.
Hard disk mechanism.
Floppy disk controller.
Floppy disk mechanism.
Keyboard controller.
Keyboard BIOS.
Key switches.
Keyboard and PS/2 controller.
Touch pad PS/2 device.
I/O controller.
USB power controller, USB connector.
HP OmniBook 2100/3000/3100Product Information1-15
Removal and Replacement
This chapter tells you how to remove and replace the following components and assemblies. The ones
marked by
• Battery (page 2-3).
Bezel, display (table on page 2-31).
Bracket, display (page 2-16 and 2-18).
Cable, icon/MB (table on page 2-31).
Cable, inverter/MB (table on page 2-31).
Cable, IR/icon (table on page 2-31).
Cable, LCD flex (table on page 2-31).
Case, bottom (page 2-25).
Case, display (page 2-16 and 2-18).
• Case, hard disk drive (page 2-5).
Case, top (page 2-21).
Cover, audio jack (table on page 2-31).
• Cover, BIOS (page 2-9).
• Cover, hinge (page 2-9).
• Cover, icon window (page 2-9).
• Cover, RAM (page 2-9).
CPU module (table on page 2-31).
Display assembly (page 2-9).
• Door, I/O (page 2-9).
• Drive, hard disk (page 2-5).
• are user-replaceable.
Table 2-1. Removal Cross-Reference
Fan (table on page 2-31).
• Feet (page 2-9).
Heatsink (table on page 2-31).
Hinge, display (table on page 2-31).
IC, BIOS (page 2-29).
Keyboard (page 2-20).
Latch, display (table on page 2-31).
LCD module (page 2-12).
Lens, IR (table on page 2-31).
• Modules, plug-in (page 2-4).
PCA, audio (table on page 2-31).
PCA, icon (table on page 2-31).
PCA, inverter (table on page 2-31).
PCA, IR (table on page 2-31).
PCA, LVDS (table on page 2-31).
PCA, motherboard (page 2-25).
PCA, touch-pad (table on page 2-31).
PCA, USB (table on page 2-31).
Plate, lock (table on page 2-31).
• RAM board (page 2-7).
2
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.)
HP OmniBook 2100/3000/3100Removal and Replacement2-1
Table 2-2. 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.
Table 2-3. Recommended Screw Torques
Screw Thread SizeTorque (kgf•cm)Torque (lbf•in)
M22.0 – 2.51.7 – 2.2
M2.5
all except those in the next two lines
M2.5
hinges
M2.5
LCD flex cable, LVDS PCA
M33.0 – 4.02.6 – 3.5
2.5 – 3.52.2 – 3.0
4.5 – 5.53.9 – 4.8
1.5 – 2.01.3 – 1.7
2-2Removal and ReplacementHP OmniBook 2100/3000/3100
Removing the Main Battery
(User-Replaceable)
The main battery is located under the right corner of the palmrest. To remove a secondary battery (an
accessory plug-in module), see the next topic below.
WARNING
Do not mutilate, puncture, or dispose of batteries in fire. A battery can burst or explode,
releasing hazardous chemicals. A rechargeable battery must be recycled or disposed of
properly.
Required Equipment
• None.
Removal Procedure
1. Slide the safety latch for the battery compartment into its recess.
2. Slide and hold the release latch, then slide out the battery.
Main Battery
Figure 2-1. Removing the Main Battery
Reassembly Note
Caution
Be sure the safety latch is open before you insert the battery. Otherwise, the release latch could
break if you force the battery in.
• After installing the battery, close the safety latch.
HP OmniBook 2100/3000/3100Removal and Replacement2-3
Removing a Plug-In Accessory Module
(User-Replaceable)
Note
Plug-in accessory modules have no repairable components. A defective module must be
exchanged.
Required Equipment
• None.
Removal Procedure
1. Slide the safety latch for the plug-in slot into its recess.
2. Slide and hold the release latch, then slide out the module.
Figure 2-2. Removing a Plug-In Module
Reassembly Note
Caution
Be sure the safety latch is open before you insert the module. Otherwise, the release latch could
break if you force the module in.
• After installing the module, close the safety latch.
2-4Removal and ReplacementHP OmniBook 2100/3000/3100
Removing the Hard Disk Drive
(User-Replaceable)
Table 2-4. Hard Disk Drive Replacement Part Numbers
DescriptionPart NumberExchangeOmniBook
Part Number210031003000
Drive, hard disk (2.1GB, 9.5mm, IBM) *0950-2801F1385-69100
Drive, hard disk (2.1GB, 12.7mm, Toshiba)0950-2836F1350-69100
Drive, hard disk (3.2GB, 9.5mm, IBM) *0950-2802F1348-69103
Drive, hard disk (3.2GB, 12.7mm, Toshiba)0950-2854F1348-69102
Drive, hard disk (4.0GB, 12.7mm, IBM) *0950-2671F1386-69100
Drive, hard disk (4.0GB, 12.7mm, Toshiba)0950-2865F1386-69101
*Recommended replacement parts. HP recommends stocking drives from IBM, the primary hard drive
source for these OmniBook products. IBM drives can be used with the older HDD case that has no top
shield (the shield should be installed if it is present). Toshiba hard drives require a top shield as part of the
HDD case.
Required Equipment
• Small Phillips screwdriver.
Removal Procedure
1. Unplug the ac adapter, if present, and remove the battery.
2. Remove the two screws from the bottom of the hard drive.
••
••
•
•••
••
•
3. Pull out the hard drive.
Screw, M2.5×5mm
Figure 2-3. Removing the Hard Drive
Caution
Work the connector off the hard drive evenly, without pulling on the flex cable. Otherwise, you
may bend connector pins on the hard drive or damage the flex cable.
HP OmniBook 2100/3000/3100Removal and Replacement2-5
4. If you are installing a new hard drive that does not have a plastic case, you can remove the case
from the old hard drive:
• Remove the four screws from the sides of the case.
• Remove the top shield from the drive and swing out the free end of the hard drive about 90°,
then gently pry off the connector from the hard drive. The OmniBook 3000 may not have a
top shield.
Caution:
For a Toshiba drive, make sure
the HDD case has a metal top
shield.
Caution:
The top shield for a 9.5-mm drive
has spacers.
HDD Case (Kit)
(includes M3×5mm screws)
Figure 2-4. Installing a Hard Drive in the Case
Reassembly Notes
Caution
• Use a HDD case kit that is compatible with the thickness of the drive, 9.5 mm or 12.7 mm.
The 9.5-mm drive requires spacers inside the top shield.
• Install the metal top shield that is included with the HDD case. If an older HDD case does not
have a top shield, you must install a newer HDD case if the drive is a Toshiba drive—
otherwise, drive performance may be reduced by magnetic interference.
• 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.
• Depending on the manufacturer of the replacement drive, the hole placement for the four screws
may vary.
Important
If you are installing a new hard drive, you should create a Hibernate partition on the drive before
loading any software—see the steps below.
Creating a Hibernate Partition
1. If you do not have an OmniBook Recovery CD and internal CD-ROM module for the computer
model 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 a factory software installation, click Start, Programs, OmniBook, Create Support Utility
Disk.
2-6Removal and ReplacementHP OmniBook 2100/3000/3100
¨
On any computer that has a CD-ROM drive, run makesupp from the
\Omnibook\Drivers\Hputils directory on the OmniBook Recovery CD.
¨
On any computer with World Wide Web access, download the Support Utility software
package from the OmniBook website (see page vi). Follow the instructions provided.
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 if the
OmniBook screen appears, ESC to display the boot-device menu, then select the CD-ROM drive
as the boot device.
4. When prompted, select “Create Hibernate Partition.”
OmniBook 2100/3100: We recommend that you create a partition the same as the factory setup—
288 MB for a Pentium II CPU, or 192 MB for a Pentium CPU (160 MB is acceptable if the
motherboard has only one RAM slot).
OmniBook 3000: We recommend that you create a 144-MB partition, the same as the factory
setup.
Removing a RAM Board
(User-Replaceable)
Table 2-5. RAM Board Replacement Part Numbers and Compatibility
DescriptionPart NumberExchangeOmniBook, CPU Type, RAM Slots
Alternate compatibility. Do not mix SDRAM and EDORAM boards in two slots.
To determine the CPU type, see the Intel sticker on the top case or see the picture showing the CPU modules on
page 2-25.
* The corner RAM slot is not present on an OmniBook 2100/3100 with a Pentium CPU and one-slot
motherboard.
••••
•••
•••
2100/3100
Pentium
Inner Corner
Slot Slot *
oo
oo
o
3000
Pentium
Inner Corner
Slot Slot
••
••
••
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.
HP OmniBook 2100/3000/3100Removal and Replacement2-7
Removal Procedure
1. Unplug the ac adapter, if present, and remove the battery.
2. Remove the hard disk drive (see page 2-5).
3. Slide open the RAM cover about 3 mm, then lift off the cover.
Note
For an OmniBook 3000, if the RAM cover does not have a Mylar insulator on the inside, replace
the cover with a new one. (Service note 3000-07.)
RAM Cover
Figure 2-5. Removing the RAM Cover
4. Release the two metal latches at the sides of the RAM board, so the free edge of the board pops
up.
5. Pull the board out of the connector.
Note:
Some OmniBook 2100/3100s
have only one RAM slot.
For an OmniBook
2100/3100 with a
Pentium processor,
no more than 32 MB
is supported in this
slot.
Figure 2-6. Removing a RAM Board
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.
• Place the RAM cover about 3 mm from its closed position, then slide it closed.
2-8Removal and ReplacementHP OmniBook 2100/3000/3100
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