Table 1-6. Functional Structure

Function

Bootup

Processor

Memory

Components Used

CPU module Motherboard Hard disk drive CD/DVD drive module

CPU module

Motherboard

SDRAM module

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 (shared).

Changeable RAM (2 slots).

Power

Display

Hard disk

Keyboard

Touch pad

Audio

Status

Parallel

USB

PCMCIA

Infrared

Wireless

Docking

PC card

Battery

Motherboard

Keyboard cover switch PCA AC adapter

Motherboard

Display assembly

Motherboard

Hard disk drive

Motherboard Keyboard Keyboard cover CD player PCA

Motherboard

Top case

Motherboard

Display assembly

USB PCA

Volume control PCA Speakers

Motherboard Top case Keyboard cover switch PCA CD player PCA

Motherboard

Motherboard

USB PCA

Motherboard PCMCIA sockets

Motherboard

CD player PCA

Display assembly Motherboard Mini-PCI PCA Bluetooth PCA USB PCA

Motherboard

Motherboard

Power storage.

Power control circuitry, AC adapter socket, lid switch, reset switch, power supply.

Power button.

AC-to-DC converter.

Video controller, display drivers, LVDS processing, display/graphics controller.

Display output, backlight, power converter for backlight.

Hard disk controller.

Hard disk mechanism.

Keyboard controller, keyboard BIOS.

Key switches.

One-Touch buttons.

CD player buttons.

Keyboard BIOS.

Touch/scroll pad sensors, click buttons.

Audio controller, audio decoder, speaker amplifier, external microphone jack.

Microphone. Headphone jack. Volume control. Sound output.

LED circuitry, keyboard controller.

Status LEDs.

Status LEDs.

CD/DVD status display.

I/O controller, parallel connector.

Bus controller, USB connectors.

USB connectors.

PCMCIA controller.

PCMCIA connectors.

I/O controller.

Infrared transmitter/receiver.

Antennas, on-off button, indicator light.

I/O controller.

Radio PCA circuitry.

Radio PCA circuitry.

On-off button, indicator light.

Docking logic, docking connector.

PC card controller, PC card connector.

HP Pavilion zt1100/xz100 Omnibook xt1000

Product Information 1-15