HP Omnibook 4100 4150 Service Manual

							HP OmniBook 4100/4150 Product Information 1-5
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. 
						

							1-6 Product Information HP OmniBook 4100/4150
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 KeyEffect
Fn + F1Decreases the display’s brightness.
Fn + F2 Increases the display’s brightness.
Fn + F3 Decreases the display’s contrast (non-TFT displays only).
Fn + F4 Increases the display’s contrast (non-TFT displays only).
Fn + F5 Switches among the built-in display, an external display, and simultaneous displays.
Fn + F8 Toggles the embedded keypad on and off. Does not affect an external keyboard. If
Num Lock is on, then the numeric functions are active—otherwise, cursor control is
active.
Fn + F12 Enters Hibernate mode.
Fn + R Enters Suspend mode.
Fn + S Enters Standby mode (W indows 95, W indows NT) or Suspend mode (W indows 98).
Fn + ScrLk Toggles Scroll Lock on and off.
Fn + UP ARROW
Fn + DOW N ARROWIncreases and decreases the sound volume.
Resetting the OmniBook
 1. Use a pen or a straightened paper clip to push the system-off button on the left side of the
OmniBook. (The switch is on the motherboard.)
 –or–
 Press and hold the blue power button until the display shuts down. (The switch is on the
motherboard.)
 2. After the computer shuts down, press the blue power button to turn it back on.
 
Note
 
The OmniBook can boot from a CD if all these conditions are true:
 ·  You have an internal CD-ROM or DVD drive installed,
 ·  You have a bootable CD in the drive, such as the OmniBook Recovery CD, and
 ·  You select the CD-ROM or DVD drive as the boot device. You can do this during reboot by
pressing ESC to cancel the OmniBook screen, then ESC to display the boot-device menu for
a one-time selection. 
						

							HP OmniBook 4100/4150 Product Information 1-7
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-and-
play operating systems, drivers, and BIOS Setup settings may change some of the entries.
 Table 1-7. System Interrupts
0 System timer
1 Keyboard
2 Cascade IRQ 9
3 Free  (or COM2 infrared port, if enabled)
4 COM1 (serial port)
5 Audio
6 Floppy drive
7 LPT1 (ECP parallel port)
8 Real-time clock
9 Free (OmniBook 4100/4150B)
Video (OmniBook 4150†)
10 USB and CardBus - assigned by W indows driver
Video Controller (OmniBook 4150B)
11 Free
12 Pointing device
13 Numeric data processor
14 Internal hard disk (primary IDE controller)
15 Internal CD-ROM drive (secondary IDE controller)
† Models called 4150† in this manual have no marking in the serial number,
whereas models called 4150B have 4150 B after the serial number.
 Table 1-8. System Memory
00000  - 9FFFF System memory
A0000  - BFFFF Video
C0000 - CBFFF
C0000 - CFFFFVideo BIOS (OmniBook 4100/4150†)
Video BIOS (OmniBook 4150B)
CC000 - DBFFF*
D0000 - DBFFF*Free** (OmniBook 4100/4150†)
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. 
						

							1-8 Product Information HP OmniBook 4100/4150
 Table 1-9. System Input/Output Addresses (100-3FF)
120-127Audio (OmniBook 4150† only)
170-177 Internal CD-ROM drive (secondary IDE controller)
1F0-1F7 Internal hard disk (primary IDE controller)
220-22F Audio
376 Internal CD-ROM drive (secondary IDE controller)
378-37F LPT1 (printer port)
388-38B Audio
3B0-3BB VGA adapter
3C0-3DF VGA adapter
3E0-3E1 PCMCIA controller
3F0-3F5 Floppy controller
3F6 Internal hard disk (primary IDE controller)
3F7 Floppy controller
3F8-3FF COM1 (serial port)
† Models called 4150† in this manual have no marking in the serial number,
whereas models called 4150B have 4150 B after the serial number.
 Table 1-10. DMA Channels
0 Sound record (OmniBook 4100/4150†)
Free (OmniBook 4150B)
1 Sound playback
2 Floppy drive
3 LPT1 (ECP parallel port)
4 Cascade
5 Free
6 Free
7 Free
† Models called 4150† in this manual have no marking in the serial number,
whereas models called 4150B have 4150 B after the serial number. 
						

							HP OmniBook 4100/4150 Product Information 1-9
Specifications
The following tables list descriptions for the OmniBook and its accessories.
 Table 1-11. OmniBook 4100/4150 Series Specifications
Physical AttributesSize: 330.5mm×256.9mm×35-36.5mm (13.0×10.1×1.3-1.4).
W eight: 2.92-2.99 kg (6.45-6.60 lb.).
Processor and
Bus Architecture300/333/366/400 MHz Pentium II processor with internal 256 KB 4-way, set-
associative 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.
Graphics14.1- 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.
PowerRechargeable 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.
Mass Storage4, 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.
RAMOmniBook 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. 
						

							1-10 Product Information HP OmniBook 4100/4150
Audio System16-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.
Keyboard and
Pointing Device87/88-key touch-type QW ERTY 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.
Input/OutputFDD/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.
ExpandabilityOne 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.
Preinstalled SoftwareMicrosoft W indows 95, W indows 98, or W indows NT 4.0.
W indows 95/98-compatible Plug-and-Play.
W indows 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.
Security FeaturesUser and administrator passwords.
System, hard drive, and docking passwords.
PC identification displayed at boot.
DMI-accessible electronic serial number.
Kensington Microsaver lock slot.
Environmental LimitsOperating 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 4100/4150 Product Information 1-11
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. 
						

							1-12 Product Information HP OmniBook 4100/4150
 Table 1-12. OmniBook 4100/4150 Series Accessories
AccessoryDescriptionOmniBookCompat.
4150B4150†41002100/7100
Memory
F1456A 32-MB SDRAM (66 MHz) expansion module
·· ·
F1457A 64-MB SDRAM (66 MHz) expansion module
·· ·
F1622A 128-MB SDRAM (66 MHz) expansion module
·· ·
F1456B 32-MB SDRAM (100 MHz) expansion module
··· ·
F1457B 64-MB SDRAM (100 MHz) expansion module
··· ·
F1622B 128-MB SDRAM (100 MHz) expansion module
··· ·
Hard Drives
F1467A 4-GB internal hard disk drive
··
F1475A 6-GB internal hard disk drive
···
F1744A 10-GB internal hard disk drive
··
Modules
F1465A/B DVD drive module (with DVD player card)
···
F1470A LS-120 SuperDisk drive module
···
F1472A Floppy drive module
···
F1473A Floppy drive cable for external use
···
F1474A 24X CD-ROM drive module
···
F1653A/B 4X DVD drive module
··
F1746A 10-GB second hard drive module
··
Power Options
F1454A 60-watt ac adapter
··· ·
F1455A 75-watt auto/airline power adapter
··· ·
F1466A Lithium-ion battery (primary and secondary)
···
F1620A Battery charger (external)
···
8120-6312
8120-6313
8120-6314
8120-6316
8120-6317
8120-8367
8120-8373
8120-8452
8120-8699Replacement power cord (Australia)
Replacement power cord (U.S., Canada, Taiwan)
Replacement power cord (Europe)
Replacement power cord (Japan)
Replacement power cord (India, South Africa)
Replacement power cord (Argentina)
Replacement power cord (People’s Republic of China)
Replacement power cord (Chile)
Replacement power cord (Hong Kong,Singapore,U.K.)··· ·
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··· · 
						

							HP OmniBook 4100/4150 Product Information 1-13
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. 
						

							1-14 Product Information HP OmniBook 4100/4150
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.
 
PCMCIA
Cards CPU
Module
Audio Jack
PCA DC-DC
PCA
Main
Battery Keyboard
(pointing stick)
RAM
BoardLVDS
PCA
VGA PCALCD Module
To p C a s e
(touch pad support)
Motherboard
PCA
BIOS
IC
Hard Disk
Drive
Fan
Speaker Speaker
Plug-In
Module
or Battery
IR
PCA
Inverter PCA
(microphone)
LED Strip
PCMCIA
Socket
 Figure 1-4. Replaceable Module Diagram
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. Keyboard cable connects to
VGA PCA (OmniBook 4100) or
motherboard (OmniBook 4150
Series).
LVDS PCA is not present in the
OmniBook 4150B.