HP Omnibook 4100 4150 Service Manual

							®
HP OmniBook 4100/4150
Service Manual 
						

							iiHP OmniBook 4100/4150
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.
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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 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 
						

							HP OmniBook 4100/4150iii
Contents
1.
Product Information ...................................................................................................... 1-1
Features and Operation ................................................................................................................. 1-3
Turning the OmniBook On and Off....................................................................................... 1-4
Checking the Status of the OmniBook................................................................................... 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 
						

							ivHP OmniBook 4100/4150
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 
						

							HP OmniBook 4100/4150v
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 
						

							viHP OmniBook 4100/4150
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
SourceAddress or NumberComments
HP External W eb http://www.hp.com/omnibook
(http://www.europe.hp.com/omnibook,
European mirror)No usage restriction.
HP US Reseller W eb http://partner.americas.hp.com Restricted to Authorized Resellers
only.
HP Asia Pacific Channel
Support Centre for DPSP
Partnershttp://www.hp.com.au Restricted to DPSP Partners only.
America Online Keyword: HP Call (800) 827-6364 for membership
within the US.
CompuServe GO HP Call (800) 524-3388 for membership
within the US.
HP Bulletin Board Service Refer to the latest Product Support
Plan for non-US BBS numbers.
HP Support Assist CD-ROM (800) 457-1762 US and Canada.
(801) 431-1587 Outside US and Canada.
Microsoft W eb http://www.microsoft.com Information and updates for W indows
operating systems. 
						

							HP OmniBook 4100/4150 Product Information 1-1
1 
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 7100/7150OmniBook 4100/4150OmniBook 2100/3100OmniBook 900
Processor *Intel Pentium II (300 or
266 MHz).Pentium II (233 to 400
MHz), or Pentium (266
MHz).Pentium II (300, 266,
or 233 MHz), or
Pentium (266, 233, or
200 MHz).Intel Pentium II (366 or
300(PE) MHz).
Memory64 MB RAM in system
slot or 32 MB RAM on
motherboard.
Expandable to 320 or
288 MB.128 or 64 MB RAM in
slot or 32 MB RAM on
motherboard.
Expandable to 256 or
160 MB.32 MB RAM on
motherboard.
Expandable to 160,
192, or 288 MB.32 MB RAM on
motherboard.
Expandable to
160 MB.
Display14.1-inch TFT XGA
display.14.1- or 13.3-inch TFT
XGA display.13.3-inch TFT XGA
display, or 12.1-inch
TFT or DSTN SVGA
display.12.1-inch TFT SVGA
display.
VideoAGP 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.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.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.AGP video.
256-bit graphics
controller with 2.5 MB
internal video RAM.
Up to 16M colors
(XGA).
Zoomed Video
enabled.
Operating
SystemW indows 95,
W indows 98, or
W indows NT 4.0
preinstalled.W indows 95,
W indows 98, or
W indows NT 4.0
preinstalled.W indows 95,
W indows 98, or
W indows NT 4.0
preinstalled.W indows 95,
W indows 98, or
W indows NT 4.0
preinstalled.
Desktop
Management
InterfaceDMI 2.0.
HP TopTools 2.6 or
3.0.DMI 2.0.
HP TopTools 2.6 to
4.5.DMI 2.0.
HP TopTools 2.6 or
3.0.DMI 2.0.
HP TopTools 3.0.
Power
ManagementAPM 1.2.
ACPI compliant.APM 1.2.
ACPI compliant.APM 1.2.
ACPI compliant.APM 1.2.
ACPI compliant.
Power StatesOn, Standby, Suspend,
Hibernate, Off.On, Standby, Suspend,
Hibernate, Off.On, Standby, Suspend,
Hibernate, Off.On, Standby, Suspend,
Hibernate, Off.
* Intel Mobile Pentium processor. 
						

							1-2 Product Information HP OmniBook 4100/4150
 Table 1-2. OmniBook 4100/4150 Series Models
OmniBook
Product *
CPU **DisplayHard DriveFloppy DriveCD-ROM
Drive
Standard
RAM
OmniBook 4100
F1462xPentium II
233 MHz13.3-inch
XGA TFT4 GB
(F1467A)1.44 MB
(F1472A)CD-ROM
(F1474A)32 MB
F1463x*** Pentium
266 MHz14.1-inch
XGA TFT
F1464xPentium II
266 MHz6 GB
(F1475A)
F1479x4 GB
(F1467A)
F1703x13.3-inch
XGA TFT
OmniBook 4150 Series
F1629xPentium II
300 MHz14.1-inch
XGA TFT6 GB
(F1475A)1.44 MB
(F1472A)CD-ROM
(F1474A)64 MB
(F1457A)
F1640xPentium II
333 MHz
F1641xPentium II
366 MHz
F1642x10 GB
(F1744A)DVD Drive
(F1653A)128 MB
(F1622A)
F1647xPentium II
300 MHz4.8 GB
(none)CD-ROM
(F1474A)64 MB
(F1457A)
F1648xPentium II
400 MHz10 GB
(F1744A)DVD Drive
(F1653A)
F1658xBPentium II
366 MHz13.3-inch
XGA TFT4.8 GB
(none)CD-ROM
(F1474A)64 MB
(F1457B)
F1660xBPentium II
400 MHz14.1-inch
XGA TFT6 GB
(F1475A)
F1663xPentium II
366 MHz4.8 GB
(none)64 MB
(F1457A)
This table lists only base product configurations—custom configurations are not included.
* For the products listed:

x suffix means
N, NT, “NV”, “NG” for W indows NT 4.0 installed (marketing distinction only), or
W , W T, “W V”, “W G”, “W R” for W indows 95 or W indows 95/98 installed (marketing distinction only).
** 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.
BThe OmniBook 4150 Series has two classes of products with different internal designs, different software
drivers, and different BIOSes. Models marked with B have “4150 B” after the serial number and are called
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. 
						

							HP OmniBook 4100/4150 Product Information 1-3
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
 
 Figure 1-2. OmniBook - Side View
Audio jacks
Keyboard status lights
Microphone
Power button
Pointing stick
Touch pad
Speaker
Click buttons
(above and below
the touch pad)
Module latch
PC Card slots
PC Card eject buttons
Speaker
Latch
Main status lights
PS/2 port
USB port
System-off button
SpeakerModule latch
Plug-in module bay
Battery
AC adapter socket
   Mute button 
						

							1-4 Product Information HP OmniBook 4100/4150
 
 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 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).Press Fn+S (not W indows 98)
–or–
allow time-out.Press any key or
move a pointing
device to display
the current session
(Instant-On).
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.Press blue power button for about
1 second
–or–
click Start, Shut Down, Standby
(W indows 98)
–or–
click Start, Suspend (W indows 95)
–or–
allow time-out.Press blue power
button to display
the current session
(Instant-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).Press Fn+F12
–or–
allow time-out.Press blue power
button to restart
and restore the
previous session.
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.Click Start, Shut Down
–or–
Press and hold the blue power
button until the display shuts down.Press blue power
button to restart
with a new session.
Infrared
port
Kensington
lock slotParallel
portSerial
portVGA
outDocking
port