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
Video PCA
Power Battery
Motherboard
Switchboard PCA
AC adapter
Motherboard
Display
Display assembly
Video PCA
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
Serial Motherboard
Motherboard
Parallel
Motherboard
PS/2 port
Motherboard
USB
PCMCIA Motherboard
PCMCIA sockets
1-16 Product Information

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.
No onboard RAM.
Changeable RAM (2 slots).
Video RAM.
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 output, backlight, power converter for backlight.
Display drivers, LVDS processing, display/graphics controller, video
RAM.
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, serial connector.
I/O controller, parallel connector.
Keyboard controller, PS/2 connector.
Bus controller, USB connectors.
PCMCIA controller.
PCMCIA connectors.
HP Omnibook XE3 (Technology Codes GE and GD)