HP Omnibook XE4400
Product Information
1-13
Table 1-8. Functional Structure Description
Bootup
CPU module
Motherboard
Hard disk drive
Floppy drive
Main processor (MMO).
Primary system circuitry, system BIOS.
First source of disk-based startup code.
Second source of disk-based startup code.
Processor
CPU module
Motherboard
Main processor, numeric data processor, L1 and L2 cache.
Primary system circuitry.
Memory
Motherboard
SDRAM module
Video RAM
no onboard SDRAM
Power
Battery
Motherboard
AC adapter
Power storage.
AC adapter socket, reset button, lid switch, power supply, power
control circuitry.
AC-to-DC converter.
Display
Motherboard
Display assembly
Graphics controller, video RAM
Display output, backlight, power converter for backlight.
Hard disk
Motherboard
Hard disk drive
Hard disk controller.
Hard disk mechanism.
Floppy drive
Motherboard
Floppy drive
I/O controller, floppy connector.
Floppy drive mechanism.
Keyboard
Motherboard
Button cover
Keyboard
Keyboard BIOS, keyboard controller.
Power switch, one-touch buttons
Key switches.
PS/2
Touchpad
Motherboard
Top case
Keyboard circuitry, keyboard controller, keyboard BIOS.
Touch pad sensor, click buttons, controller (PS/2 output).
Audio
Motherboard
Audio Control PCA
Keyboard
cover/speaker
assembly
Audio controller, audio decoder, speaker amplifier, microphone.
External audio jacks, headphone amplifier, audio-off switch.
Speakers.
Status
Motherboard
Button cover
Top case
LED circuitry, keyboard controller.
Keyboard LEDs.
Main status LEDs.
Serial
Motherboard
I/O controller, serial connector.
Parallel
Motherboard
I/O controller, parallel connector.
Infrared
Motherboard
I/O controller, infrared transmitter/receiver.
PS/2 port
Motherboard
PS/2 connector, keyboard controller.
USB
Motherboard
Bus controller (South Bridge), USB connector.
S-Video
Motherboard
I/O controller, S-video connector (certain models).
Port Replicator
Motherboard
Port replicator logic, port replicator connector (certain models).
PCMCIA
Motherboard
PCMCIA socket
PCMCIA controller.
PCMCIA connectors.
Wireless LAN
(certain models)
Mini-PCI
Antenna PCAs
I/O controller, radio, radio frequency circuitry.
Transmit/receive antennas.
LAN
Motherboard
LAN circuitry, bus controller, LAN connector.
Modem
Motherboard
Modem circuitry (certain models), modem connector.
Summary of Contents for OmniBook XE4400
Page 1: ... HP Omnibook XE4400 Technology Code KD Service Manual ...
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Page 94: ...4 2 Replaceable Parts HP Omnibook XE4400 Figure 4 1 Exploded View ...
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Page 106: ...Part Number F4665 90024 Printed in U S A 4 02 ...