HP Omnibook Xe2 Service Manual

							HP OmniBook XE2 Product Information 1-5
 Table 1-2. Activating Power Modes
Power ModeTo Enter ModeTo Turn Back On
Suspend
Low-power/stopped state. 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
(Windows 98)
–or–
click Start, Suspend (Windows 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+F5
–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. 
						

							1-6 Product Information HP OmniBook XE2
Checking the Status of the OmniBook
The OmniBook status lights, located on the keyboard cover (the display bezel above the keyboard),
indicate power status and drive activity. These lights are on the LED PCA.
 Table 1-3. Status Lights (LED PCA)
IconMeaning
No icon
(Light next to
blue button)Power
Steady green light: OmniBook is running (On mode).
Slowly blinking green light: OmniBook is suspended to RAM (Suspend or Standby mode).
No light: OmniBook is off (Off or Hibernate mode).
AC connected
Green light: AC power is connected.
Battery
Green light: Battery is full or stopped charging.
Orange light: Battery is charging.
No light: AC adapter is not connected or battery is not present.
Floppy disk drive access
Green light: OmniBook is accessing the floppy disk drive
Hard disk drive access
Green light: OmniBook is accessing the hard disk drive.
CD-ROM drive access
Green light: OmniBook is accessing the CD-ROM drive.
Caps Lock
Green light: Caps Lock is active.
Num Lock
Green light: Num Lock is active.
Scroll Lock
Green light: Scroll Lock is active.
The built-in microphone is to the right of the power light, next to its icon:  
						

							HP OmniBook XE2 Product Information 1-7
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 1-4. Fn Hot Keys
Hot KeyEffect
Fn + F1Decreases the display’s contrast (DSTN displays only).
Fn + F2 Increases the display’s contrast (DSTN displays only).
Fn + F3 Enters Suspend mode (Windows 98); enters Standby mode (Windows 95, Windows NT).
Fn + F4 Enters Suspend mode.
Fn + F5 Enters Hibernate mode.
Fn + F6 Toggles the sound on and off (mutes sound).
Fn + F12 Switches among the built-in display, an external display, and simultaneous displays.
Fn + NumLock Toggles Scroll Lock on and off.
Fn + UP ARROW
Fn + DOWN 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 bottom 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 I/O
PCA.)
 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 both of these conditions are true:
 ·  You have a bootable CD in the drive, such as the OmniBook Recovery CD, and
 ·  You select the CD-ROM drive as the boot device. You can do this during reboot by pressing
ESC to cancel the OmniBook screen, then ESC to display the boot-device menu for a one-
time selection. 
						

							1-8 Product Information HP OmniBook XE2
System Resources
Below are default values for system resources. To see other, non-default possibilities, use the BIOS
Setup utility (see page 3-22), 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 1-5. System Interrupts
0System timer
1Keyboard
2Cascade from secondary interrupt controller
3Free (or COM2, IrDA port, if enabled)
4COM1 (serial port)
5Audio
6Floppy disk drive
7LPT1 (ECP parallel port)
8Real-time clock
9Free in APM mode (SCI in ACPI mode)
10PCI IRQ (shared by all PCI devices)
11Free (or MIDI, if enabled).
12Touch pad, PS/2 mouse
13Numeric coprocessor
14Internal hard disk drive (primary IDE controller)
15Internal CD-ROM drive (secondary IDE controller)
 Table 1-6. System Memory
00000 - 9FFFFSystem memory
A0000 – BFFFFVideo
C0000 - CFFFFVideo BIOS
D0000 - DBFFFFree (valid uses: upper memory blocks (UMBs) or PC Card
memory windows)
DC000 - FFFFFSystem BIOS 
						

							HP OmniBook XE2 Product Information 1-9
 Table 1-7. System Input/Output Addresses (100-3FF)
170-177Internal CD-ROM drive (secondary IDE controller)
1F0-1F7Internal hard disk drive (primary IDE controller)
220-22FDOS games (FM decoding)
376Internal CD-ROM drive (secondary IDE controller)
378-37FLPT1 (printer port)
388-38BDOS games (FM decoding)
3B0-3BBVGA adapter
3C0-3DFVGA adapter
3E0-3E1PCMCIA controller
3F0-3F5Floppy disk drive controller
3F6Internal hard disk drive (primary IDE controller)
3F7Floppy disk drive controller
3F8-3FFCOM1 (serial port)
 Table 1-8. DMA Channels
0Free
1LPT1 (ECP parallel port)
2Floppy disk drive
3Fast IR (if enabled)
4Cascade from secondary PMA controller
5Free
6Free
7Free 
						

							1-10 Product Information HP OmniBook XE2
Specifications
The following tables list descriptions for the OmniBook.
 Table 1-9. OmniBook XE2 Specifications
Physical
AttributesSize: 311mm×249mm×42mm (12.24”×9.80”×1.64”) closed.
Weight: 3.0 kg (6.6 lb.).
Processor
and Bus
Architecture333, 366, 400-MHz Intel Pentium II processor or
433, 466-MHz Celeron processor
MMX technology.
2.5-V low-power processor.
128-KB OR 256-KB built-in L2 cache.
32-bit PCI bus.
Graphics13.3”, 12.1”, or 14.1” active-matrix (TFT) display.  XGA or SVGA resolution.
SMI LynxE SM811 graphics controller with 2-MB 135-MHz SGRAM or
SMI Lynx EM4 w/AGP and 4MB video memory
Zoomed Video support for lower PC Card slot (Windows 95 and Windows 98 only).
Dual-monitor support.
PowerRechargeable 8-cell lithium ion battery (14.4 Vdc, 3.2 AH, 46 watt-hours) 3.12 hours
battery life time.
Fast battery recharge: 80% in 1.6 hours, 100% in 2.1 hours.
Low-battery warning.
Suspend/resume capability.
60-watt AC adapter: 115 to 230 Vac (47 to 63 Hz) input, 19 Vdc, 3.16 A output.
Storage24X CD-ROM drive or
6X DVD
1.44MB floppy disk drive.
4.0-GB or 6.0-GB hard disk drive.
RAM32-128MB SDRAM SDRAM preinstalled.
Two slots for RAM expansion up to 256 MB maximum.
Audio System16-bit, Sound Blaster Pro-compatible.
ESS M-2EM or ESS M3E PCI audio
64-voice wavetable synthesizer.
Stereo sound via two built-in speakers.
Built-in microphone.
Stereo line-in and monophonic microphone-in jacks.
ZV port audio interface.
Keyboard and
Pointing
Device87/88-key touch-type keyboard with 101/102 key emulation.
Embedded numeric keypad.
12 function (Fn) keys.
Touch pad pointing device.
Modem56Kbps (V.90) data speed maximum.
14.4Kbps fax speed, Class 1 and 2.
Input/OutputUniversal serial bus (USB).
9-pin, 115,200-bps serial (16550 UART).
25-pin bi-directional ECP/EPP parallel.
Video out: 800×600×16M or 1024x768x64K colors at 75-Hz refresh rate.
PS/2 keyboard/mouse port.
IrDA 1.1 (Fast IR) infrared port.
ExpandabilityOne Type III or two Type II 16-/32-bit PC Card slots (3.3- and 5-V support).
CardBus enabled.
Lower slot supports Zoomed Video (Windows 95 and Windows 98 only).
Optional port replicator. 
						

							HP OmniBook XE2 Product Information 1-11
SoftwareMicrosoft Windows 95 OR Microsoft Windows 98 OR Microsoft Windows NT 4.0.
Windows-compatible Plug-and-Play.
Power management.
VirusScan.
Adobe Acrobat Reader.
My Yahoo!
HP diagnostic tests.
Online documentation.
Electronic registration.
OmniBook Recovery CD(s) included.
Phoenix Card Executive (Windows NT 4.0 only)
Centralized worldwide BIOS and driver update service.
Security
FeaturesUser and supervisor passwords.
Kensington Microsaver lock slot.
Environmental
LimitsOperating temperature: 5 to 35 ºC (41 to 95 ºF).
Operating humidity: 20 to 80 percent RH.
Storage temperature: –20 to 60 ºC (–4 to 140 ºF).
Storage humidity: 8 to 90 percent RH.
Major ICsCPU: Intel Pentium II or Celeron
North Bridge: 443DX or 443ZXM-66
South Bridge: PIIX4e or PIIX4m
Video: SMI LynxE SM811 or SMI Lynx EM4 SM710-4
Audio: ESS M-2EM or ESS M3E
CardBus: TI PCI1225.
Keyboard controller: National PC87570.
Super I/O: National 97338.
For information on accessories and accessory replaceable parts, see the Support publication “Express
Support Material Program for the OmniBook XE Series PC.” 
						

							1-12 Product Information HP OmniBook XE2
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 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 1-13—it lists the roles that the replaceable
modules play in each of the functional subsystems.
 
 Figure 1-6. Replaceable Module Diagram 
						

							HP OmniBook XE2 Product Information 1-13
 Table 1-10. Functional Structure
BootupCPU module
Motherboard
BIOS IC
Floppy disk module
Hard disk driveMain processor (MMO).
Primary system circuitry.
Code for basic system functions.
First source of disk-based startup code.
Second source of disk-based startup code.
ProcessorCPU module
MotherboardMain processor, numeric data processor, L1 and L2 cache.
Primary system circuitry.
MemoryRAM board Optional, additional RAM.
PowerBattery
Motherboard
AC adapterPower storage.
AC adapter socket, power switch, lid switch, system-off switch, power
supply.
AC-to-DC converter.
DisplayMotherboard
LCD module
Inverter PCAPCMCIA/zoomed video controller.
Display output, backlight.
Power converter for backlight.
Hard disk
driveMotherboard
Hard disk driveHard disk controller.
Hard disk mechanism.
Floppy disk
driveMotherboard
Floppy disk moduleFloppy disk controller.
Floppy disk mechanism.
KeyboardMotherboard
BIOS IC
KeyboardKeyboard controller.
Keyboard BIOS.
Key switches.
PointerMotherboard
Touch padKeyboard controller.
Touch pad sensor, controller (PS/2 output).
AudioMotherboard
LED PCA
SpeakersAudio controller, speaker amplifier, headphone amplifier, zoomed video
controller, mute switch.
External audio jacks.
Speakers.
StatusMotherboard
LED PCAKeyboard controller.
Power LEDs.
SerialMotherboard
Modem PCAI/O controller.
Serial connector.
ParallelMotherboard
Modem PCAI/O controller
Parallel connector.
InfraredMotherboard
LED PCAI/O controller.
Infrared transmitter/receiver.
PS/2 portMotherboard
LED PCAKeyboard controller, PS/2 processor
PS/2 connector.
USBMotherboard
LED PCABus controller (South Bridge)
USB connector.
Docking portMotherboard Docking logic, docking connector.
PCMCIAMotherboard
PCMCIA socketPCMCIA controller.
PCMCIA connectors.