Table 1-13. Functional Structure - HP OmniBook 3000 Service Manual

Function Modules
CPU module
Bootup
Motherboard
System BIOS IC
Keyboard BIOS IC
Floppy disk drive
Hard disk drive
Processor CPU module
Motherboard
Motherboard
Memory
RAM boards
Battery
Power
Motherboard
AC adapter
Motherboard
Display
LCD module
LVDS PCA
Inverter PCA
Hard disk Motherboard
Hard disk drive
Motherboard
Floppy drive
Floppy disk drive
Motherboard
Keyboard
Keyboard BIOS IC
Keyboard
Motherboard
TouchPad
Top case assembly
Audio Motherboard
Audio PCA
Top case assembly
Motherboard
Serial
Motherboard
Parallel
Motherboard
Infrared
IR PCA
Icon PCA
Motherboard
PS/2 port
Motherboard
USB
USB PCA
Docking port Motherboard
Motherboard
PCMCIA
HP OmniBook 3000

Table 1-13. Functional Structure

Roles
Main processor (MMO).
Primary system circuitry.
Code for basic system functions.
Code for keyboard functions.
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.
First 16 MB of RAM, video RAM.
Optional, additional RAM.
Power storage.
Power supply, ac adapter socket.
AC-to-dc converter.
Display/graphics controller, video RAM.
Display output, backlight.
Display drivers, signal processing. (Low-Voltage Differential Signaling)
Power converter for backlight.
Hard disk controller.
Hard disk mechanism.
Floppy disk controller.
Floppy disk mechanism.
Keyboard controller.
Keyboard BIOS.
Key switches.
Keyboard and PS/2 controller.
TouchPad PS/2 device.
Speaker amplifier, external audio jacks.
Audio controller, wave synthesizer, headphone amplifier.
Microphone, speakers.
I/O controller, serial connector.
I/O controller, parallel connector.
I/O controller.
Infrared transmitter/receiver.
Pass-through connection.
Keyboard and PS/2 controller, PS/2 connector.
I/O controller.
USB power controller, USB connector.
Docking logic, docking connector.
PCMCIA controller, PCMCIA connectors.
Product Information 1-11