Table 1-7. Functional Structure - HP Omnibook XE3 Service Manual

Function Components Used
Bootup CPU module
Motherboard
Floppy disk module
Hard disk drive
Processor CPU module
Motherboard
Motherboard
Memory
SDRAM module
Battery
Power
Motherboard
Switchboard PCA
AC adapter
Display Motherboard
Display assembly
Motherboard
Hard disk
Hard disk drive
Floppy drive Motherboard
Floppy disk module
Keyboard Motherboard
Keyboard
Motherboard
Touch pad
Top case
Motherboard
Audio
Switchboard PCA
Headphone PCA
Top case
Status Motherboard
Switchboard PCA
CD player PCA
Parallel Motherboard
Motherboard
PS/2 port
Motherboard
USB
Motherboard
Docking port
PCMCIA Motherboard
PCMCIA sockets
HP Omnibook XE3 (Technology Code GF)

Table 1-7. Functional Structure

Component Roles
Main processor.
Primary system circuitry.
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.
Video RAM.
Changeable RAM (2 slots).
Power storage.
Power control circuitry, AC adapter socket, lid switch, system-off switch,
power supply.
Power switch, standby button.
AC-to-DC converter.
Video controller, display drivers, LVDS processing, display/graphics
controller, video RAM.
Display output, backlight, power converter for backlight.
Hard disk controller.
Hard disk mechanism.
I/O controller, floppy connector.
Floppy disk mechanism.
Keyboard controller, keyboard BIOS.
Key switches.
Keyboard BIOS.
Touch pad sensor, click buttons, controller (PS/2 output).
Audio controller, audio decoder, speaker amplifier, external microphone
jack.
Microphone.
Earphone amplifier.
Speakers.
LED circuitry, keyboard controller.
Status LEDs.
CD/DVD status display.
I/O controller, parallel connector.
Keyboard controller, PS/2 connector.
Bus controller, USB connectors.
Docking logic, docking connector.
PCMCIA controller.
PCMCIA connectors.
Product Information 1-17