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HP OmniBook 4100/4150
Service Manual
Notice
In a continuing effort to improve the quality of our products, technical and environmental information in this document is subject to change without notice. This manual and any examples contained herein are provided "as is" and are subject to change without notice. Hewlett-Packard Company makes no warranty of any kind with regard to this manual, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard Co. shall not be liable for any errors or for incidental or consequential damages in connection with the furnishing, performance, or use of this manual or the examples herein. Consumer transactions in Australia and the United Kingdom: The above disclaimers and limitations shall not apply to Consumer transactions in Australia and the United Kingdom and shall not affect the statutory rights of Consumers. © Copyright Hewlett-Packard Company 1998, 1999. All rights reserved. Reproduction, adaptation, or translation of this manual is prohibited without prior written permission of Hewlett-Packard Company, except as allowed under the copyright laws. The programs that control this product are copyrighted and all rights are reserved. Reproduction, adaptation, or translation of those programs without prior written permission of Hewlett-Packard Co. is also prohibited. Portions of the programs that control this product may also be copyrighted by Microsoft Corporation, SystemSoft Corp., Crystal Semiconductor Corporation, Phoenix Technologies, Ltd., ATI Technologies Inc., and NeoMagic, Inc. See the individual programs for additional copyright notices. Microsoft, MS, MS-DOS, Windows and Windows NT are registered trademarks of Microsoft Corporation. Pentium and the Intel Inside logo are U.S. registered trademarks and MMX is a U.S. trademark of Intel Corporation. TrackPoint is a U.S. registered trademark of International Business Machines. All certifications may not be completed at product introduction. Check with your HP reseller for certification status. This equipment is subject to FCC rules. It will comply with the appropriate FCC rules before final delivery to the buyer. Hewlett-Packard Company Mobile Computing Division 19310 Pruneridge Ave. Cupertino, CA 95014, U.S.A.
Edition History
Edition 1 ............................ April 1998 Edition 2 ........................October 1998 Edition 3 ........................ January 1999 Edition 4 ....................September 1999
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HP OmniBook 4100/4150
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
HP OmniBook 4100/4150
iii
Figures
Figure 1-1. OmniBook - Front View ....................................................................................................1-3 Figure 1-2. OmniBook - Side View .....................................................................................................1-3 Figure 1-3. OmniBook - Rear View .....................................................................................................1-4 Figure 1-4. Replaceable Module Diagram .........................................................................................1-14 Figure 2-1. Removing the Battery or Plug-In Module..........................................................................2-3 Figure 2-2. Removing a RAM Board ...................................................................................................2-4 Figure 2-3. Removing the Hard Disk Drive .........................................................................................2-5 Figure 2-4. Installing a Hard Drive in the Cover..................................................................................2-6 Figure 2-5. Removing the Keyboard ....................................................................................................2-9 Figure 2-6. Removing the Display .....................................................................................................2-11 Figure 2-7. Removing the LCD Module ............................................................................................2-15 Figure 2-8. Removing the Top Case...................................................................................................2-17 Figure 2-9. Removing the CPU (OmniBook 4150)..........................................................................2-21 Figure 2-10. Inserting the CPU (OmniBook 4100/4150).................................................................2-22 Figure 2-11. Positioning Thermal Pads ..............................................................................................2-23 Figure 2-12. Removing the Motherboard ...........................................................................................2-26 Figure 2-13. Installing Docking Doors and Module Latch.................................................................2-28 Figure 2-14. Example of Serial Number Label ..................................................................................2-28 Figure 2-15. Removing the BIOS IC..................................................................................................2-29 Figure 2-16. Boot-Block Jumper........................................................................................................2-31 Figure 3-1. Basic Troubleshooting Steps .............................................................................................3-2 Figure 3-2. OmniBook Diagnostic Screens -- Basic and Advanced .................................................3-13 Figure 3-3. Serial and Parallel Loopback Connectors........................................................................3-15 Figure 4-1. Exploded View ..................................................................................................................4-2 Figure 4-2. Display Components..........................................................................................................4-7 Figure 4-3. Motherboard Components .................................................................................................4-8
Tables
Table 1-1. Product Comparisons ..........................................................................................................1-1 Table 1-2. OmniBook 4100/4150 Series Models.................................................................................1-2 Table 1-3. Activating Power Modes.....................................................................................................1-4 Table 1-4. Main Status Lights (LED Strip Cable)................................................................................1-5 Table 1-5. Keyboard Status Lights (VGA PCA or Motherboard)........................................................1-5 Table 1-6. Fn Hot Keys ........................................................................................................................1-6 Table 1-7. System Interrupts ................................................................................................................1-7 Table 1-8. System Memory ..................................................................................................................1-7 Table 1-9. System Input/Output Addresses (100-3FF).........................................................................1-8 Table 1-10. DMA Channels .................................................................................................................1-8 Table 1-11. OmniBook 4100/4150 Series Specifications ....................................................................1-9 Table 1-12. OmniBook 4100/4150 Series Accessories......................................................................1-12 Table 1-13. Functional Structure........................................................................................................1-15 Table 2-1. Removal Cross-Reference...................................................................................................2-1 Table 2-2. Required Equipment ...........................................................................................................2-2 Table 2-3. Recommended Screw Torques............................................................................................2-2 Table 2-4. RAM Board Replacement Part Numbers............................................................................2-4 Table 2-5. Hard Disk Drive Replacement Part Numbers .....................................................................2-5 Table 2-6. Replacing Small Parts (User-Replaceable) .........................................................................2-8 Table 2-7. Display Component Compatibility....................................................................................2-13 Table 2-8. CPU Component Compatibility ........................................................................................2-19
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HP OmniBook 4100/4150
Table 2-9. Removing Display Components....................................................................................... 2-31 Table 2-10. Removing Top Case Components.................................................................................. 2-32 Table 2-11. Removing Bottom Case Components ............................................................................ 2-33 Table 3-1. Scope of Diagnostic Tools ................................................................................................. 3-4 Table 3-2. Troubleshooting Suggestions ............................................................................................. 3-5 Table 3-3. OmniBook Diagnostic Error Codes ................................................................................. 3-15 Table 3-4. POST Terminal-Error Beep Codes .................................................................................. 3-20 Table 3-5. POST Messages ............................................................................................................... 3-21 Table 3-6. Sycard PCCTest Commands ............................................................................................ 3-23 Table 3-7. BIOS Setup Menus and Parameters ................................................................................. 3-26 Table 4-1. OmniBook Replaceable Parts ............................................................................................ 4-3 Table 4-2. Assembly-Component Breakdown..................................................................................... 4-8 Table 4-3. Accessory Replaceable Parts.............................................................................................. 4-9 Table 4-4. Part Number Reference .................................................................................................... 4-10 Table 5-1. OmniBook 4100/4150 LCD Guidelines (TFT).................................................................. 5-3 Table 5-2. Service Notes ..................................................................................................................... 5-6 Table 5-3. Obsolete Repair Parts......................................................................................................... 5-6
HP OmniBook 4100/4150
v
Introduction
This service manual provides reference information for the HP OmniBook 4100/4150. It is intended to be used by HP-authorized service personnel in the installation, servicing, and repair of these products. The manual is designed as a self-paced guide. It is intended to train you to install, configure, and repair OmniBook computers. You can follow this manual without having equipment available. The following table lists additional places where you can get supplementary information about OmniBook products.
Sources of OmniBook Information
Source HP External Web Address or Number http://www.hp.com/omnibook (http://www.europe.hp.com/omnibook, European mirror) http://partner.americas.hp.com http://www.hp.com.au Comments No usage restriction.
HP US Reseller Web HP Asia Pacific Channel Support Centre for DPSP Partners America Online CompuServe HP Bulletin Board Service HP Support Assist CD-ROM Microsoft Web
Restricted to Authorized Resellers only. Restricted to DPSP Partners only.
Keyword: HP GO HP
(800) 457-1762 (801) 431-1587 http://www.microsoft.com
Call (800) 827-6364 for membership within the US. Call (800) 524-3388 for membership within the US. Refer to the latest Product Support Plan for non-US BBS numbers. US and Canada. Outside US and Canada. Information and updates for Windows operating systems.
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HP OmniBook 4100/4150
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
Processor * OmniBook 7100/7150 OmniBook 4100/4150 Intel Pentium II (300 or Pentium II (233 to 400 266 MHz). MHz), or Pentium (266 MHz). 64 MB RAM in system slot or 32 MB RAM on motherboard. Expandable to 320 or 288 MB. 14.1-inch TFT XGA display. OmniBook 2100/3100 Pentium II (300, 266, or 233 MHz), or Pentium (266, 233, or 200 MHz). 32 MB RAM on motherboard. Expandable to 160, 192, or 288 MB. OmniBook 900 Intel Pentium II (366 or 300(PE) MHz).
Memory
Display
Video
Operating System
Desktop Management Interface APM 1.2. Power Management ACPI compliant. Power States On, Standby, Suspend, Hibernate, Off. * Intel Mobile Pentium processor.
AGP or PCI local bus video. 64-bit graphics controller with 4 MB external video RAM, 3Dgraphics acceleration. Up to 16M colors (XGA). Zoomed Video enabled. Windows 95, Windows 98, or Windows NT 4.0 preinstalled. DMI 2.0. HP TopTools 2.6 or 3.0.
128 or 64 MB RAM in slot or 32 MB RAM on motherboard. Expandable to 256 or 160 MB. 14.1- or 13.3-inch TFT 13.3-inch TFT XGA XGA display. display, or 12.1-inch TFT or DSTN SVGA display. AGP or PCI local bus PCI local bus video. 128-bit graphics video. controller with 2 MB 256- or 128-bit graphics controller with internal video RAM. Up to 64K colors 8, 4, 2.5 or 2 MB (XGA), 16M colors internal video RAM. (SVGA). Up to 16M or 64K Zoomed Video colors (XGA). enabled. Zoomed Video enabled. Windows 95, Windows 98, or Windows NT 4.0 preinstalled. DMI 2.0. HP TopTools 2.6 to 4.5. APM 1.2. ACPI compliant. Windows 95, Windows 98, or Windows NT 4.0 preinstalled. DMI 2.0. HP TopTools 2.6 or 3.0. APM 1.2. ACPI compliant.
32 MB RAM on motherboard. Expandable to 160 MB. 12.1-inch TFT SVGA display.
AGP video. 256-bit graphics controller with 2.5 MB internal video RAM. Up to 16M colors (XGA). Zoomed Video enabled.
Windows 95, Windows 98, or Windows NT 4.0 preinstalled. DMI 2.0. HP TopTools 3.0. APM 1.2. ACPI compliant.
On, Standby, Suspend, On, Standby, Suspend, On, Standby, Suspend, Hibernate, Off. Hibernate, Off. Hibernate, Off.
HP OmniBook 4100/4150
Product Information
1-1
Table 1-2. OmniBook 4100/4150 Series Models
OmniBook CPU ** Product * OmniBook 4100 F1462x Pentium II 233 MHz F1463x*** Pentium 266 MHz F1464x Pentium II 266 MHz F1479x F1703x OmniBook 4150 Series F1629x Pentium II 300 MHz F1640x Pentium II 333 MHz F1641x Pentium II 366 MHz F1642x Display Hard Drive Floppy Drive CD-ROM Drive CD-ROM (F1474A) Standard RAM 32 MB
13.3-inch XGA TFT 14.1-inch XGA TFT
4 GB (F1467A)
1.44 MB (F1472A)
6 GB (F1475A) 4 GB (F1467A) 13.3-inch XGA TFT 14.1-inch XGA TFT 6 GB (F1475A) 1.44 MB (F1472A) CD-ROM (F1474A) 64 MB (F1457A)
10 GB DVD Drive 128 MB (F1744A) (F1653A) (F1622A) F1647x Pentium II 4.8 GB CD-ROM 64 MB 300 MHz (none) (F1474A) (F1457A) F1648x Pentium II 10 GB DVD Drive 400 MHz (F1744A) (F1653A) B F1658x Pentium II 13.3-inch 4.8 GB CD-ROM 64 MB 366 MHz XGA TFT (none) (F1474A) (F1457B) B F1660x Pentium II 14.1-inch 6 GB 400 MHz XGA TFT (F1475A) F1663x Pentium II 4.8 GB 64 MB 366 MHz (none) (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 Windows NT 4.0 installed (marketing distinction only), or "W", "WT", "WV", "WG", "WR" for Windows 95 or Windows 95/98 installed (marketing distinction only). ** 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. B The OmniBook 4150 Series has two classes of products with different internal designs, different software B drivers, and different BIOSes. Models marked with 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.
1-2
Product Information
HP OmniBook 4100/4150
Features and Operation
The following three illustrations point out the main external features of the computer. They are followed by highlights of the computer's operation. For an internal, exploded view, see page 4-2.
Latch Main status lights Keyboard status lights Microphone Power button
Pointing stick Touch pad Speaker
PC Card slots Click buttons (above and below the touch pad) Module latch PC Card eject buttons Audio jacks AC adapter socket Speaker Mute button
Figure 1-1. OmniBook - Front View
Battery PS/2 port USB port System-off button Speaker Module latch Plug-in module bay
Figure 1-2. OmniBook - Side View
HP OmniBook 4100/4150
Product Information
1-3
Infrared port
Kensington Parallel lock slot port
Serial port
VGA out
Docking port
Figure 1-3. OmniBook - Rear View
Turning the OmniBook On and Off
· On. Press the blue power button to turn on the OmniBook. · Standby. The display turns off automatically if the computer is inactive for about 2 minutes. · Suspend. Click Start, Suspend (Windows 95) or press the blue power button briefly (about 1 second) to suspend activity when the OmniBook is on. When you turn on the computer, it resumes your previous work session. Closing the lid (for more than 2 seconds) also suspends the computer. · Hibernate. Press Fn+F12. This is like Off, except that your current work session is first saved to disk. When you turn on the computer, it reboots and restores your previous session. · Off. Click Start, Shut Down. If the OmniBook does not respond, press and hold the blue power button until the display shuts down. When you turn on the computer, it reboots. Unsaved data is lost.
Table 1-3. Activating Power Modes
Power Mode 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. To Enter Mode Press Fn+S (not Windows 98) or allow time-out. To Turn Back On 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").
Hibernate No-power/stopped state. Session is saved on the hard disk. Everything is shut down. Computer reboots at turn-on and restores previous session and network connections (if plug-and-play). Off No-power/stopped state. Everything is shut down (battery continues charging if ac adapter is connected). Computer reboots at turn-on and restores network connections.
Press blue power button for about 1 second or click Start, Shut Down, Standby (Windows 98) or click Start, Suspend (Windows 95) or allow time-out. Press Fn+F12 or allow time-out.
Press blue power button to restart and restore the previous session. Press blue power button to restart with a new session.
Click Start, Shut Down or Press and hold the blue power button until the display shuts down.
1-4
Product Information
HP OmniBook 4100/4150
Checking the Status of the OmniBook
The main OmniBook status lights, located at the front-right edge of the display bezel at the top of the display, indicate power status and drive activity. (These lights are on the LED strip cable.)
Table 1-4. Main Status Lights (LED Strip Cable)
Meaning Power mode Steady green light: OmniBook is running (On mode). Steady orange light: OmniBook is suspended (Suspend or Standby mode). No light: OmniBook is off (Off or Hibernate mode). Green and orange lights: OmniBook failed when resuming. Drive access Green light: OmniBook is accessing the hard disk drive, floppy disk drive, or a drive in the plug-in module bay. For the OmniBook 4100, it also indicates PC Card activity. Charging Steady green light: AC adapter is connected, battery is full or stopped charging. Blinking green light: AC adapter is connected, battery is charging. No light: AC adapter is not connected or battery is not present.
The keyboard status lights, located above the keyboard, indicate the states of the keyboard locks. (These lights are on the VGA PCA for the OmniBook 4100, and on the motherboard for the OmniBook 4150 Series.)
Table 1-5. Keyboard Status Lights (VGA PCA or Motherboard)
Meaning Caps Lock Caps Lock is active. Keypad Lock The embedded keypad is active (Fn+F8 or Fn held down). Num Lock must also be on for the numeric keys--otherwise, cursor control is active. Num Lock Num Lock is active.
In addition, the battery module has five lights that indicate its charge level. To view the lights, you have to remove the battery and press the pad on the back next to the connector. The number of lights that turn on indicates the charge.
HP OmniBook 4100/4150
Product Information
1-5
Using Fn Hot Keys
The Fn key combined with another key is a hot key--a shortcut key sequence for various system controls. For an external keyboard, CTRL+ALT is normally equivalent to the Fn key.
Table 1-6. Fn Hot Keys
Hot Key Fn + F1 Fn + F2 Fn + F3 Fn + F4 Fn + F5 Fn + F8 Effect Decreases the display's brightness. Increases the display's brightness. Decreases the display's contrast (non-TFT displays only). Increases the display's contrast (non-TFT displays only). Switches among the built-in display, an external display, and simultaneous displays. Toggles the embedded keypad on and off. Does not affect an external keyboard. If Num Lock is on, then the numeric functions are active--otherwise, cursor control is active. Enters Hibernate mode. Enters Suspend mode. Enters Standby mode (Windows 95, Windows NT) or Suspend mode (Windows 98). Toggles Scroll Lock on and off. Increases and decreases the sound volume.
Fn + F12 Fn + R Fn + S Fn + ScrLk Fn + UP ARROW Fn + DOWN ARROW
Resetting the OmniBook
1. Use a pen or a straightened paper clip to push the system-off button on the left side of the OmniBook. (The switch is on the motherboard.) or Press and hold the blue power button until the display shuts down. (The switch is on the motherboard.) 2. After the computer shuts down, press the blue power button to turn it back on.
Note The OmniBook can boot from a CD if all these conditions are true: · You have an internal CD-ROM or DVD drive installed, · You have a bootable CD in the drive, such as the OmniBook Recovery CD, and · You select the CD-ROM or DVD drive as the boot device. You can do this during reboot by pressing ESC to cancel the OmniBook screen, then ESC to display the boot-device menu for a one-time selection.
1-6
Product Information
HP OmniBook 4100/4150
System Resources
Below are default values for system resources. To see other, non-default possibilities, use the BIOS Setup utility (see page 3-26), which lists port and audio device configurations in the System Devices menu. The tables in this section show typical resource usage as set up by the OmniBook BIOS. Plug-andplay operating systems, drivers, and BIOS Setup settings may change some of the entries.
Table 1-7. System Interrupts
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 System timer Keyboard Cascade IRQ 9 Free (or COM2 infrared port, if enabled) COM1 (serial port) Audio Floppy drive LPT1 (ECP parallel port) Real-time clock Free (OmniBook 4100/4150B) Video (OmniBook 4150) USB and CardBus - assigned by Windows driver Video Controller (OmniBook 4150B) Free Pointing device Numeric data processor Internal hard disk (primary IDE controller) Internal CD-ROM drive (secondary IDE controller) Models called 4150 in this manual have no marking in the serial number, whereas models called 4150B have 4150 B after the serial number.
Table 1-8. System Memory
00000 - 9FFFF System memory A0000 - BFFFF Video C0000 - CBFFF Video BIOS (OmniBook 4100/4150) C0000 - CFFFF Video BIOS (OmniBook 4150B) CC000 - DBFFF* Free** (OmniBook 4100/4150) D0000 - DBFFF* Free** (OmniBook 4150B) DC000*- FFFFF System BIOS * Approximate boundary. ** Valid uses for memory addresses CC000-DBFFF or D0000-DBFFF: Upper memory blocks (UMBs). PC card memory windows. Models called 4150 in this manual have no marking in the serial number, whereas models called 4150B have 4150 B after the serial number.
HP OmniBook 4100/4150
Product Information
1-7
Table 1-9. System Input/Output Addresses (100-3FF)
120-127 Audio (OmniBook 4150 only) 170-177 Internal CD-ROM drive (secondary IDE controller) 1F0-1F7 Internal hard disk (primary IDE controller) 220-22F Audio 376 Internal CD-ROM drive (secondary IDE controller) 378-37F LPT1 (printer port) 388-38B Audio 3B0-3BB VGA adapter 3C0-3DF VGA adapter 3E0-3E1 PCMCIA controller 3F0-3F5 Floppy controller 3F6 Internal hard disk (primary IDE controller) 3F7 Floppy controller 3F8-3FF COM1 (serial port) Models called 4150 in this manual have no marking in the serial number, whereas models called 4150B have 4150 B after the serial number.
Table 1-10. DMA Channels
0 1 2 3 4 5 6 7 Sound record (OmniBook 4100/4150) Free (OmniBook 4150B) Sound playback Floppy drive LPT1 (ECP parallel port) Cascade Free Free Free Models called 4150 in this manual have no marking in the serial number, whereas models called 4150B have 4150 B after the serial number.
1-8
Product Information
HP OmniBook 4100/4150
Specifications
The following tables list descriptions for the OmniBook and its accessories.
Table 1-11. OmniBook 4100/4150 Series Specifications
Physical Attributes Processor and Bus Architecture Size: 330.5mm×256.9mm×35-36.5mm (13.0"×10.1"×1.3-1.4"). Weight: 2.92-2.99 kg (6.45-6.60 lb.). 300/333/366/400 MHz Pentium II processor with internal 256 KB 4-way, setassociative L2 cache. or 233/266/300-MHz Intel Pentium II, or 266-MHz Intel Pentium processor with 512-KB pipeline-burst-synchronous L2 cache. 1.6- to 1.8-V core, 2.5-V external, low-power processor. 32-KB (16-KB instruction, 16-KB data) L1 cache. 32-bit PCI bus. 14.1- or 13.3-inch XGA active-matrix (TFT) display. Zoomed Video support for lower PC Card slot. OmniBook 4150B: ATI Mobility-M or -M1 graphics accelerator with 4- or 8-MB video RAM (1024 × 768 × 16M colors). 2X AGP graphics capability. OmniBook 4150: 256-bit NeoMagic MagicGraph graphics accelerator with 2.5-MB video RAM (1024 × 768 × 16M colors). 1X AGP graphics capability. OmniBook 4100: 128-bit NeoMagic MagicGraph graphics accelerator with 2-MB video RAM (1024 × 768 × 64K colors). Zoomed Video support for both PC Card slots. Rechargeable 9-cell lithium ion battery with LED charge-level gauge (10.8 Vdc, 4.2 AH or more, 45 watt-hours or more). Battery life (one battery): up to 3-4 hours typical (varies with type of usage and model). Fast battery recharge: 80% in 1.5-2 hours, 100% in 2-2.5 hours. Low-battery warning. Suspend/resume capability. 60-watt ac adapter: 100 to 240 Vac (50 to 60 Hz) input, 19 Vdc, 3.16 A output. 4, 6, or 10 GB removable hard drive. Standard 1.44-MB floppy drive module. Standard 24X CD-ROM drive module or DVD drive module. Optional LS-120 SuperDisk module. Optional DVD drive. Optional 10 GB second hard drive module. OmniBook 4150 or 4150B: 128 MB or 64 MB SDRAM in first RAM slot. Two total slots for RAM expansion up to 256 MB (using 128 MB modules). 66 MHz RAM bus, or 100 MHz RAM bus for OmniBook 4150B. OmniBook 4100: 32-MB SDRAM on motherboard. One slot for RAM expansion up to 160 MB. 66 MHz RAM bus.
Graphics
Power
Mass Storage
RAM
HP OmniBook 4100/4150
Product Information
1-9
Audio System
Keyboard and Pointing Device
Input/Output
Expandability
Preinstalled Software
Security Features
Environmental Limits
16-bit, Sound Blaster Pro-compatible. SRS 3D enhanced audio. Stereo sound via two built-in speakers. Built-in microphone. Line-in, headphone-out, and microphone-in. 87/88-key touch-type QWERTY keyboard with 101/102 key emulation. Embedded numeric keypad. 12 function (Fn) keys. Two pointing devices: pointing stick (technology licensed from IBM) and touch pad. FDD/IDE interface for external module bay. Universal serial bus (USB). 9-pin, 115,200-bps serial (16550 UART). 25-pin bi-directional ECP/EPP parallel. Video-out (up to 1024×768×64K colors, or up to 1600×1200×64K or 16M colors for OmniBook 4150B. Refresh rate 60 to 85-Hz). Dual display. PS/2 keyboard/mouse. 4-Mbps IrDA-compatible infrared port. One Type III or two Type II 16-/32-bit PC Card slots (3.3- and 5-V support). CardBus enabled. Plug-in module bay for accessory modules. Optional port replicator, mini dock, and docking system. Microsoft Windows 95, Windows 98, or Windows NT 4.0. Windows 95/98-compatible Plug-and-Play. Windows NT 4.0 APM and PC Card Plug-and-Play. Advanced Power Management (APM 1.2). DMI 2.0 with HP TopTools 2.6 to 4.5 DiagTools. Agate Tioman for HP (Hot Swap). Adobe Acrobat Reader. Virus Scan software. Online documentation. OmniBook Recovery CD-ROM included. Centralized worldwide BIOS and driver update service. User and administrator passwords. System, hard drive, and docking passwords. PC identification displayed at boot. DMI-accessible electronic serial number. Kensington Microsaver lock slot. Operating temperature: 5 to 35 °C (41 to 95 °F). Operating humidity: 20 to 90 percent RH (5 to 35 °C). Storage temperature: 20 to 50 °C (4 to 122 °F).
1-10
Product Information
HP OmniBook 4100/4150
Major ICs
OmniBook 4150B: CPU: Intel Mobile Pentium II. South Bridge: PIIX4M. Video: ATI Mobility-M or -M1. Audio: ESS ES1978 Maestro-2E and ESS ES1921. CardBus: TI PCI 1225. Keyboard controller: National PC87570. Super I/O: SMC 869. OmniBook 4150: CPU: Intel Mobile Pentium II. South Bridge: PIIX4E. Video: NeoMagic MagicGraph NM2200 (NMG5). Audio: NeoMagic MagicGraph NM2200 (NMG5) and NeoMagic Audio MNA2. CardBus: TI PCI1220A. Keyboard controller: National PC87570. Super I/O: SMC 769. OmniBook 4100: CPU: Intel Mobile Pentium or Pentium II. South Bridge: PIIX4E. Video: NeoMagic MagicGraph NM2160 (NMG4). Audio: Crystal CS4237B. CardBus: TI PCI1250A. Keyboard controller: National PC87570. Super I/O: SMC 769. Models called 4150 in this manual have no marking in the serial number, whereas models called 4150B have 4150 B after the serial number.
HP OmniBook 4100/4150
Product Information
1-11
Table 1-12. OmniBook 4100/4150 Series Accessories
Accessory Description 4150B Memory F1456A 32-MB SDRAM (66 MHz) expansion module F1457A 64-MB SDRAM (66 MHz) expansion module F1622A 128-MB SDRAM (66 MHz) expansion module F1456B 32-MB SDRAM (100 MHz) expansion module F1457B 64-MB SDRAM (100 MHz) expansion module F1622B 128-MB SDRAM (100 MHz) expansion module Hard Drives F1467A 4-GB internal hard disk drive F1475A 6-GB internal hard disk drive F1744A 10-GB internal hard disk drive Modules F1465A/B DVD drive module (with DVD player card) F1470A LS-120 SuperDisk drive module F1472A Floppy drive module F1473A Floppy drive cable for external use F1474A 24X CD-ROM drive module F1653A/B 4X DVD drive module F1746A 10-GB second hard drive module Power Options F1454A 60-watt ac adapter F1455A 75-watt auto/airline power adapter F1466A Lithium-ion battery (primary and secondary) F1620A Battery charger (external) Replacement power cord (Australia) 8120-6312 Replacement power cord (U.S., Canada, Taiwan) 8120-6313 Replacement power cord (Europe) 8120-6314 Replacement power cord (Japan) 8120-6316 Replacement power cord (India, South Africa) 8120-6317 Replacement power cord (Argentina) 8120-8367 Replacement power cord (People's Republic of China) 8120-8373 Replacement power cord (Chile) 8120-8452 Replacement power cord (Hong Kong,Singapore,U.K.) 8120-8699 Adapters F1469A PS/2 Y adapter PC Cards F1623A 10/100-Mbps Ethernet + 56-Kbps modem PC Card by Xircom F1625A 56-Kbps global modem PC Card by Xircom F1626A 10/100-Mbps Ethernet PC Card by 3Com F1627A 56-Kbps US modem PC Card by Xircom F1643A Realport 10/100-Mbps Ethernet + 56-Kbps modem PC Card by Xircom OmniBook 4150 4100 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Compat. 2100/7100 · · · · · ·
· · ·
· · · · · · · · · · · · · ·
· · · · ·
· · · · ·
· ·
·
· · · · · ·
· · · · · ·
· · · · · ·
· · · · · ·
1-12
Product Information
HP OmniBook 4100/4150
Docks · · · · F1451A Port replicator · · · · F1452A Mini dock · · · · F1453A Monitor stand (short) for F1451A and F1452A · · · F1468A Docking module bay adapter · · · · F1477A Docking system and monitor stand (tall) Models called 4150 in this manual have no marking in the serial number, whereas models called 4150B have 4150 B after the serial number.
HP OmniBook 4100/4150
Product Information
1-13
Internal Design
The motherboard PCA is the central component of the OmniBook design. It plays a role in virtually all system functions. The CPU module (MMO) and most other subsystems connect to the motherboard. The following figure shows the connections among the replaceable electrical modules. As a substitute for a functional block diagram, see the table on page 1-15--it lists the roles that the replaceable modules play in each of the functional subsystems.
LCD Module
Keyboard cable connects to VGA PCA (OmniBook 4100) or motherboard (OmniBook 4150 Series).
Keyboard (pointing stick)
Inverter PCA (microphone) LED Strip Top Case (touch pad support)
LVDS PCA VGA PCA
LVDS PCA is not present in the OmniBook 4150B.
IR PCA DC-DC PCA PCMCIA Socket PCMCIA Cards Audio Jack PCA
Fan
BIOS IC Motherboard PCA
The BIOS IC is not removable on the OmniBook 4150 Series. Two RAM slots are available on the OmniBook 4150 Series. The power switch and lid switch are contained on the motherboard. All external connections (except IR and audio) are made to the motherboard.
CPU Module RAM Board Speaker
Hard Disk Drive
Speaker
Plug-In Module or Battery
Main Battery
Figure 1-4. Replaceable Module Diagram
1-14
Product Information
HP OmniBook 4100/4150
Table 1-13. Functional Structure
Bootup CPU module Motherboard BIOS IC Floppy disk module Hard disk drive CPU module Motherboard Motherboard RAM board VGA PCA Battery Motherboard DC-DC PCA AC adapter Motherboard LCD module Inverter PCA LVDS PCA VGA PCA Motherboard Hard disk drive Motherboard Floppy disk module Motherboard BIOS IC Keyboard Motherboard BIOS IC Keyboard Top case Motherboard VGA PCA Audio jack PCA Inverter PCA Speakers Motherboard LED strip cable VGA PCA Motherboard Motherboard Motherboard IR PCA Motherboard Motherboard Motherboard Motherboard PCMCIA socket Main processor (MMO). Primary system circuitry. Code for basic system functions (part of motherboard on OB 4150). First source of disk-based startup code. Second source of disk-based startup code. Main processor, numeric data processor, L1 and L2 cache. Primary system circuitry. No onboard RAM (OB 4150), or first 32 MB of RAM (OB 4100). Changeable RAM (1 slot on OB 4100, 2 slots on OB 4150). Video RAM. Power storage. AC adapter socket, power switch, lid switch, system-off switch, power supply. Power control circuitry. AC-to-dc converter. PCMCIA/zoomed video controller. Display output, backlight. Power converter for backlight. Display drivers, LVDS processing (OB 4100/4150). Display/graphics controller, video RAM (OB 4150B: LVDS processing). Hard disk controller. Hard disk mechanism. I/O controller, floppy connector. Floppy disk mechanism. Keyboard controller. Keyboard BIOS (part of motherboard on OB 4150). Key switches. Keyboard controller, pointing stick controller (PS/2 output). Keyboard BIOS (part of motherboard on OB 4150). Pointing stick sensor. Touch pad sensor, controller (PS/2 output). Audio controller (OB 4100/4150B), audio decoder, speaker amplifier, headphone amplifier, zoomed video controller, mute switch. Audio controller (OB 4150). External audio jacks. Microphone. Speakers. Keyboard controller, plus keyboard LEDs (OB 4150). Main LEDs. Keyboard LEDs (OB 4100). I/O controller, serial connector. I/O controller, parallel connector. I/O controller. Infrared transmitter/receiver. Keyboard controller, PS/2 connector. Bus controller (South Bridge), USB connector. Docking logic, docking connector. PCMCIA controller. PCMCIA connectors.
Processor Memory
Power
Display
Hard disk Floppy drive Keyboard
Pointer
Audio
Status
Serial Parallel Infrared PS/2 port USB Docking port PCMCIA
Models called 4150 in this manual have no marking in the serial number, whereas models called 4150B have 4150 B after the serial number.
HP OmniBook 4100/4150
Product Information
1-15
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.
Table 2-1. Removal Cross-Reference
·
· · · ·
Air vent cover (table on page 2-33). Audio jack cover (table on page 2-33). Audio jack PCA (table on page 2-33). Battery (page 2-3). BIOS IC (page 2-28). Bottom case (page 2-19). Cable holder (table on page 2-31). CPU bottom plate (table on page 2-33). CPU module (page 2-13). CPU top plate (table on page 2-33). DC-DC PCA (table on page 2-33). Display bezel (table on page 2-31). Display case (table on page 2-31). Display latch (table on page 2-31). Docking door (table on page 2-8). End cap (table on page 2-31). Fan (table on page 2-33). Foot (table on page 2-8). Frame (table on page 2-33). Hard disk drive (page 2-5). Heatsink parts (table on page 2-33). Hinge (table on page 2-31). Hinge cover (table on page 2-8).
Inverter PCA (table on page 2-31). · I/O door (table on page 2-8). IR PCA (table on page 2-33). Keyboard (page 2-9). LCD brackets (table on page 2-31). LCD flex cable (table on page 2-31). LCD module (page 2-13). LCD shield (table on page 2-31). LED strip cable (table on page 2-31). LVDS PCA (table on page 2-33). Module latch (table on page 2-33). Motherboard (page 2-19). PCMCIA socket (table on page 2-33). · Plug-in module (page 2-3). · RAM board (page 2-4). · RAM/BIOS cover (table on page 2-8). Speaker cover (table on page 2-33). Speaker (table on page 2-33). Spring, grounding (table on page 2-33). Strip cover (table on page 2-32). Top case (page 2-16). · VGA connector cover (table on page 2-8). VGA PCA (table on page 2-33).
Caution
Always provide proper grounding when performing repairs. Without proper grounding, an electrostatic discharge may damage the OmniBook and its components.
HP OmniBook 4100/4150
Removal and Replacement
2-1
Notes Reassembly steps are the reverse of the removal steps. Reassembly notes are included at the end of each section below. Symbols like this throughout this chapter show approximate full-size screw outlines. You can use them to verify the sizes of screws before you install them. Installing a wrong-size screw can damage the unit. (The symbol at the left represents an M2.5×5mm T-head screw.) Table 2-2. Required Equipment
· · · · · ·
Small Phillips screwdriver, preferably magnetized. 5 mm hex driver. Pointed knife or probe. Small flat-blade screwdriver. IC (PLCC) removal tool (similar to OK Industries EX-5). OmniBook 4150 CPU removal tool (HP part number T-335665).
Table 2-3. Recommended Screw Torques
Screw Thread Size M2 M2.5 (45 mm long) M2.5 (1619 mm long) M3 Torque (kgf·cm) 1.3 1.8 3.0 3.5 2.5 3.0 3.0 3.5 Torque (lbf·in) 1.1 1.5 2.6 3.0 2.2 2.6 2.6 3.0
2-2
Removal and Replacement
HP OmniBook 4100/4150
Removing the Battery or Plug-In Module
(User-Replaceable)
Required Equipment
· None.
Removal Procedure
1. Unplug the ac adapter, if present. 2. Slide forward the module latch slider on the corner next to the module, then swing back the latch to loosen the module. 3. Pull out the module. 4. Slide the latch back into the case.
Figure 2-1. Removing the Battery or Plug-In Module Reassembly Notes
· Important: You must slide the latch forward before you can insert a module. · You can install a battery in either bay. Any other type of module must be installed in the left bay.
HP OmniBook 4100/4150
Removal and Replacement
2-3
Removing a RAM Board
(User-Replaceable)
The OmniBook 4100 has 32 MB of RAM on the motherboard and has one RAM slot for installing additional RAM. The OmniBook 4150 Series has no RAM on the motherboard and has two RAM slots for installing RAM.
Table 2-4. RAM Board Replacement Part Numbers
Description RAM board, 32-MB SDRAM (66 MHz) RAM board, 64-MB SDRAM (66 MHz) RAM board, 128-MB SDRAM (66 MHz) RAM board, 32-MB SDRAM (100 MHz) RAM board, 64-MB SDRAM (100 MHz) RAM board, 128-MB SDRAM (100 MHz) Part Number 1818-7413 1818-7414 1818-7549 1818-7950 1818-7951 1818-7952 Exchange Part Number F1456-69001 F1457-69001 F1622-69001 · · OmniBook 4150B 4150 4100 · · · · · · · · · ·
· · · Models called 4150 in this manual have no marking in the serial number, whereas models called 4150B have 4150 B after the serial number.
Caution
Handle the RAM board only by its edges and provide proper grounding. Otherwise, you may damage the board due to electrostatic discharge. Required Equipment
· Small Phillips screwdriver.
Removal Procedure
1. Unplug the ac adapter, if present, and remove the battery. 2. Turn the unit bottom side up, then remove the two screws from the RAM/BIOS cover and remove the cover. 3. Release the two latches at the sides of the RAM board, so the free edge of the board pops up. 4. Pull the board out of the connector.
Note: OmniBook 4100 shown. For the OmniBook 4150 Series, there are two RAM slots (with no RAM built into the motherboard).
Figure 2-2. Removing a RAM Board
2-4
Removal and Replacement
HP OmniBook 4100/4150
Reassembly Notes
· Insert the RAM board into the connector at about a 30° angle until it is fully inserted. Then press down at both sides until both latches snap closed.
Removing the Hard Disk Drive
(User-Replaceable)
Table 2-5. Hard Disk Drive Replacement Part Numbers
Exchange OmniBook Part Number 4150B 4150 4100 Drive, hard disk (4.0GB, 12.7mm, IBM) 0950-2671 F1386-69100 · Drive, hard disk (4.0GB, 12.7mm, Toshiba) 0950-2865 F1386-69101 · Drive, hard disk (4.3GB, 9.5mm, IBM) 0950-3409 F1711-69100 · · Drive, hard disk (4.8GB, 9.5mm, IBM) * 0950-3611 F1711-69102 · · · Drive, hard disk (6.4GB, 9.5mm, IBM) * 0950-3442 F1711-69101 · · · Drive, hard disk (6.4GB, 12.7mm, IBM) 0950-2785 F1475-69100 · · Drive, hard disk (6.4GB, 8.4mm, Toshiba) 0950-3675 F1475-69102 · · · Drive, hard disk (6.4GB, 12.7mm, Toshiba) 0950-3397 F1475-69101 · · Drive, hard disk (10.1 GB, 12.5mm, IBM) * 0950-3443 F1744-69101 · · * These hard drives are the preferred drives at the time of publication. Drives shipped in units are subject to change without notice. For current information about preferred and approved drives for these products, see the latest version of service note HDD-01. Models called 4150 in this manual have no marking in the serial number, whereas models called 4150B have 4150 B after the serial number. Description Part Number
Required Equipment
· Small Phillips screwdriver. · Small flat-blade screwdriver.
Removal Procedure
1. Unplug the ac adapter, if present, and remove the battery. 2. Turn the unit bottom side up. 3. Remove the hard drive screw from the bottom case. 4. Pull out the hard drive by its plastic tab.
Screw, M3×4mm
Figure 2-3. Removing the Hard Disk Drive
HP OmniBook 4100/4150
Removal and Replacement
2-5
5. If you are installing a new hard drive that does not have a cover, you can remove the cover parts from the old hard drive: · Remove the screw from the case, then pry open the flap. If necessary, use a flat-blade screwdriver · Use a flat-blade screwdriver to pry open the snaps at the ends of the case, then open the connector-side of the case. · Pry out the corner next to the connector, then lift out the connector and hard drive together. · Unplug the internal connector and cable from the hard drive.
Spacer for 9.5mm HDD (see Caution)
Spacers for 8.4mm HDD (see Caution)
Screw, M3×4mm HDD cover kit
Figure 2-4. Installing a Hard Drive in the Cover Reassembly Notes
Caution
· Do not cover the vent hole in the top surface of the hard drive or in the case. If you cover the hole, the hard drive could fail prematurely. · If you install a 9.5-mm hard drive in the case, make sure you install the spacer on top of the drive. If you install an 8.4-mm hard drive, make sure you stick the end spacer on the case and install the top spacer on top of the drive.
· Pry out the connector corner of the case and insert the external connector and hard drive at the same time. The connector seats in the lower part of the opening in the case. · Secure the two tabs on the screw flap by inserting the corner tab last, while prying out the nearby corner of the case. · When you install the battery module, be sure the plastic tab on the hard drive case lays folds up against the front of the case.
2-6
Removal and Replacement
HP OmniBook 4100/4150
Important · If you are installing a new hard drive, create a Hibernate partition on the drive before loading any software--see the steps below. Creating a Hibernate Partition OmniBook 4100
1. If you do not have an OmniBook Recovery CD and internal CD-ROM (or DVD) module for the computer you are repairing, create a Support Utility floppy disk now. After inserting a formatted floppy disk in the floppy drive, do one of the following:
On an OmniBook 4100 with a Spring-98 factory software installation, click Start, Programs, OmniBook, Create Support Utility Disk. On any computer that has a CD-ROM drive, run makesupp from the \Omnibook\Drivers\Hputils directory on the OmniBook 4100 Recovery CD.
2. Insert the Recovery CD in the CD-ROM drive--or insert the Support Utility disk in the floppy drive. 3. Reboot the computer. If you are using the Recovery CD, press ESC during reboot to cancel the OmniBook screen, ESC to display the boot-device menu, then select the CD-ROM drive as the boot device. 4. When prompted, select "Create Hibernate Partition." We recommend that you create a partition the same as the default option.
Creating a Hibernate Partition--OmniBook 4150 Series
1. Plug in the ac adapter. 2. Insert the Recovery CD in the CD-ROM drive. 3. Shut down and restart the computer--when you see the HP logo, press ESC two times. 4. Select the CD-ROM drive as the boot device. 5. When the Recovery CD dialog box appears, follow the displayed instructions. Accept the recommended partition size. If you install the factory software, the recovery process can take up to 10 minutes. If you want to create the Hibernate partition without installing the factory software, click Advanced and select the option to not install the operating system. If you intend to install Windows NT, you should choose the FAT16 option or the Hibernate-only option. Note: If, instead, you see an MS-DOS menu of options, select "Recover..." to create the Hibernate partition and install the factory software, which can take up to 60 minutes. Or select "Create Hibernate Partition" to not install the software. Accept the recommended partition size. 6. When prompted to reboot the computer, press CTRL+ALT+DEL and follow any displayed instructions.
HP OmniBook 4100/4150
Removal and Replacement
2-7
Replacing Small Parts
(User-Replaceable)
The following small parts are user-replaceable.
Table 2-6. Replacing Small Parts (User-Replaceable)
Part Docking Doors Feet Hinge Cover, Left Replacement Procedure Open each door and flex the door until one side tab releases. To replace, see the picture on page 2-28. Insert a small flat-blade screwdriver under the foot and pry it loose. To replace, firmly press the adhesive side of the foot into the recess. With the display lid fully open, push back on the bottom edge of the hinge cover until it unsnaps, then work it loose and lift it off. To install, make sure the front and back tabs snap into the case. With the display lid closed, push in the bottom of the hinge cover until it unsnaps, then work it loose and lift it off. To install, make sure the front and back tabs snap into the case. With the door closed, insert a small flat-blade screwdriver behind the door from below. Flex the door until one side tab releases. It helps to press in lightly on the ends of the door. To install, keep the icons on the door toward the top. Pull the cap off the pointing stick. On the bottom of the unit, remove the two screws from the RAM/BIOS cover and remove the cover. With the display closed, push up on the connector cover and down on the bottom case until the lower tabs release. To install, insert the top tabs into the strip cover, then push up on the cover and down on the bottom case until you can insert the lower tabs.
Hinge Cover, Right
I/O Door
Pointing Stick Cap RAM/BIOS Cover VGA Connector Cover
2-8
Removal and Replacement
HP OmniBook 4100/4150
Removing the Keyboard
(HP Authorized Service Providers Only)
Required Equipment
· Small Phillips screwdriver. · Probe or tweezers.
Removal Procedure
1. Unplug the ac adapter, if present, and remove the battery. 2. On the bottom of the unit, remove the seven "K" screws from the bottom case. 3. Insert your small finger into the PCMCIA opening and push up the top of the keyboard--or you can lift it from above using a thin flat-blade screwdriver. After lifting the back edge slightly, slide the keyboard toward the back until the front-left corner is free. 4. With the display tilted only slightly back, lift the front of the keyboard and lean it back against the display. Be careful not to scratch the display or pull on the cables. 5. Release the pointing stick flex cable from the VGA PCA. 6. Release the keyboard flex cable from the VGA PCA.
Pointing stick cap
Keyboard and pointing stick flex cables
Screw, M2.5×16mm (7) Strip cover
Figure 2-5. Removing the Keyboard
HP OmniBook 4100/4150
Removal and Replacement
2-9
Note For an OmniBook 4100 with a serial number between TW82000000 and TW83599999, if the date code on the bottom of the keyboard is "828", replace the keyboard. (Service note 4100-02.) F1460 and F1462 keyboards are not compatible with 4150B models. F1649 keyboards are compatible with all models. See the table on page 5-6 for part numbers. Reassembly Notes
· To connect the larger keyboard flex cable, lay the keyboard flat on the top case slightly forward of its normal position. To connect the smaller pointing stick flex cable, tip up the keyboard against the display.
Caution
After connecting the keyboard and pointing stick flex cables, lean the keyboard forward and tuck the excess length of the keyboard flex cable under the strip cover behind the keyboard. If a stiffener tab is present on the larger cable, make sure its free end lays toward the front of the case--so the tab is not under the strip cover. Check the cable again after lowering the keyboard into its final position. Hint On the bottom case, the holes for the keyboard screws are marked by "K". The hole recesses have flat bottoms for the 16-mm T-head screws (not tapered as for longer flathead screws).
2-10
Removal and Replacement
HP OmniBook 4100/4150
Removing the Display Assembly
(HP Authorized Service Providers Only)
Required Equipment
· Small Phillips screwdriver.
Removal Procedure
1. Unplug the ac adapter, if present, and remove the battery. 2. On the back of the unit, lift up on the VGA connector cover above the VGA port and unsnap it from the case. 3. Remove the screw above the VGA port. 4. Remove the four "D" screws from the bottom case. 5. Open the display about 90 degrees, then lift off and lay back the combined top-case strip cover and display assembly. Do not lose the two springs from the bottom case. 6. Remove the two screws from the LCD flex cable end and unplug the cable.
Screw, M2×4mm
Strip cover LCD flex cable
Caution: Install new screws after removing the two 16mm screws at the corners. Screw, M2.5×16mm (2)
Screw, M2.5×5mm (1)
VGA connector cover Screw, M2.5×5mm
Screw, M2.5×19mm (2)
Note: Loose spring located in each hole (2).
Figure 2-6. Removing the Display
HP OmniBook 4100/4150
Removal and Replacement
2-11
Reassembly Notes
· Before installing the display assembly, make sure a grounding spring is present in each hole at the back corners of the left and right frames.
Caution
Install new screws for all screws you remove that hold the display hinges. Otherwise, the hinges could loosen over time. Hint · While attaching the LCD flex cable to the base, rest one corner of the display on the bottom case. · On the bottom case, the holes for the display screws are marked by "D". The hole recesses have flat bottoms for the 16-mm T-head screws and tapered bottoms for the longer 19-mm flathead screws.
2-12
Removal and Replacement
HP OmniBook 4100/4150
Removing the LCD Module
(HP Authorized Service Providers Only)
Note The exact details for removing the LCD module depend on the type of module. Some details may differ from those described in this section. See the table below for information about matching components for different types of LCD modules. Table 2-7. Display Component Compatibility
LCD Type* OmniBook Model Bezel, display Cable, LCD flex Cable, LED strip Case, display Kit, display case (latch...) Kit, LCD (brackets, shield...) LCD module PCA, inverter PCA, LVDS PCA, VGA LCD Type* OmniBook Model Bezel, display Cable, LCD flex Cable, LED strip Case, display Kit, display case (latch...) Kit, LCD (brackets, shield...) LCD module PCA, inverter PCA, LVDS PCA, VGA (with switch settings) F1660-60919 F1655-69020 F1460-60917 (none) F1660-60908
4 --n 3 n-- 0 2 n-- F 1 n-- F
13"Samsung 4100 F1460-60969 F1460-60975 F1460-60970 F1460-60974 F1460-69098 F1460-60917 F1460-60914
14" LG 4100 4150 F1460-60967 F1629-60909 F1460-60981 F1460-60972
14" IBM74* 14" IBM74E* 4100 4150 4150 F1462-60927 F1629-60919 or F1660-60911 F1629-60915 F1629-60916 F1460-60968
F1460-60971 F1460-60980 F1440-69095 F1460-60918 F1460-60916 F1629-60908 F1629-60907 F1629-60903 F1462-60926 F1460-60906 F1629-60932 F1629-69012 F1629-60917 F1629-60918 F1629-60903 14" CPT 4150B F1660-60920 F1640-60909 F1640-69008
F1460-60906 13" Hyundai 4150B F1655-60915 F1660-60922 F1460-60970 F1660-60915 F1660-69029 F1660-60912 (none) F1660-60908
4 n-- 3 n-- 0 2 n-- F 1 --n F
14" LG* 4150B F1660-60913
14" IBM74E 14" IBM76* 4150B 4150B F1660-60911 F1660-60921 F1629-60916 F1460-60968 F1460-60971 F1640-60909 F1640-69008 F1660-60924 (none) F1660-60908
4 n-- 3 n-- 0 2 --n F 1 n-- F
F1660-60913
F1660-60915 F1660-69028 (none) F1660-60908
4 n-- 3 n-- 0 2 --n F 1 --n F
F1660-60918 F1660-69030 (none) F1660-60908
4 n-- 3 --n 0 2 n-- F 1 n-- F
F1660-60912
*
To identify the type of LCD module, see the marking printed on the LCD flex cable where it plugs into the base--it may be on the top or bottom of the cable. For an OmniBook 4150B with an LG or IBM76 LCD module, if the marking on the cable is not certain, see the switch settings on the VGA PCA to identify the module. For an OmniBook 4150 with an IBM LCD module, the IBM74 has a shield with a solid back, and the IBM74E has a shield with a mylar-covered opening across the back. Models called 4150 in this manual have no marking in the serial number, whereas models called 4150B have 4150 B after the serial number.
HP OmniBook 4100/4150
Removal and Replacement
2-13
Required Equipment
· Small Phillips screwdriver. · Pointed knife or probe.
Removal Procedure
1. Unplug the ac adapter, if present, and remove the battery. 2. Remove the display assembly and strip cover from the unit (page 2-11). 3. On the display bezel, remove the upper and lower screw covers (using a pointed knife or probe), then remove the six screws. 4. At the bottom of the display, lift up the inner edge of the bezel near both hinges until it unsnaps-- be careful to keep the end caps. Then at one side of the display, use your fingers to gently pull the display bezel outward, toward the edge of the case, until the snaps release. When one side is free, repeat along the opposite side--until only the top edge is attached. 5. Now lift the bottom edge about 5 cm and press inward along the top edge until the snaps release and the bezel lifts off. 6. Remove the two screws holding the LCD brackets and hinges near the bottom corners of the display case. Remove the combined hinges and strip cover. 7. On the plastic cable holder, unsnap the cover. 8. If present, unplug the flex cable that wraps around the inverter PCA to the left of the cable holder. 9. Unplug the three cables from the inverter PCA--raise the PCA out of the case, if necessary. Remove the PCA. 10. Slide the LCD module and brackets toward the bottom of the case. When the slots in the brackets clear the tabs in the case, lift out the LCD module--the LED strip cable is still in the display case. 11. If the LED strip cable is held by the LCD bracket, place the LCD module next to the display case and LED strip. 12. Remove the four screws holding the brackets to the LCD module. 13. Separate the LCD module and the shield: · You may have to remove one or more pieces of tape. · If the flex cable is still attached to the LCD module, unplug the cable.
2-14
Removal and Replacement
HP OmniBook 4100/4150
Screw cover, upper domed (2) Screw cover, lower flat (4)
Display bezel
Caution: Install new screws after removing any of the four circled screws. Note: 14-inch LG display shown. For a different display, the LCD flex cable and other details differ. Screw, M2.5×4mm (6)
LCD module Screw (size depends on LCD module)
Caution: Reinstall protective tape at the corner, if originally present.
LCD shield Inverter PCA Note: LCD type is marked on the end of the flex cable. LCD flex cable Cable holder cover Screw, M2.5×4mm (2) LED strip cable LCD brackets, left and right
Display case Strip cover, hinges, and hinge covers Cable holder End cap (2)
Figure 2-7. Removing the LCD Module
HP OmniBook 4100/4150
Removal and Replacement
2-15
Reassembly Notes
Caution
· Be sure to replace the LCD module or other display components with compatible parts. Components may be damaged if compatible parts are not used. See the table on page 2-13. · At the lower-right corner of the LCD, reinstall protective tape if it was present on the original LCD. · For an OmniBook 4150B, if you install a different type of LCD module, you must set the switches on the VGA PCA according to the type of LCD module. See the table on page 2-13. · Install new screws for all screws you remove that hold the display hinges. Otherwise, the hinges could loosen over time.
· For an LED strip cable that is routed around the bottom-right corner of the LCD, make sure it is routed through the corner of the LCD bracket. · Install the inverter PCA under the main LCD flex cable. · The extra length of LCD wires connecting to the inverter PCA is folded back along the PCA. · Snap in the end caps after the display is assembled.
Caution
At the lower-right corner of the LCD module, be careful the wires are not pinched where they pass next to the LCD bracket. Otherwise, they could be damaged.
Caution
For a 13-inch LCD, make sure the spacers and tape are installed when you assemble the LCD module and LCD shield. Otherwise, LCD quality may be significantly degraded, including noise or discoloration when the display is moved. (Service notes 4100-04, 4100-05.)
Shield LCD Make sure two rubber spacers are present in the connector recess. If necessary, transfer them from the old LCD or install new spacers. Note: If one long spacer is present, replace it with two short ones.
Install tape here to hold the cable to the shield.
Back of 13-Inch LCD and Shield
Removing the Top Case
(HP Authorized Service Providers Only)
Required Equipment
· Small Phillips screwdriver.
2-16
Removal and Replacement
HP OmniBook 4100/4150
Removal Procedure
1. Unplug the ac adapter, if present, and remove the battery. 2. Remove these additional assemblies: · Floppy module or other module (page 2-3). · Hard disk drive (page 2-5). · Keyboard (page 2-9). ·