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Technology Code ID) Product Information 1-15
Table 1-6. Functional Structure
Function Components Used Component Roles
Bootup
CPU module
Motherboard
Hard disk drive
CD/DVD drive module
Main processor.
Primary system circuitry.
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
SDRAM module Video RAM (shared).
Changeable RAM (2 slots).
Power
Battery
Motherboard
Keyboard cover switch PCA
AC adapter
Power storage.
Power control circuitry, AC adapter socket, lid switch, reset
switch, power supply.
Power button.
AC-to-DC converter.
Display
Motherboard
Display assembly
Video controller, display drivers, LVDS processing,
display/graphics controller.
Display output, backlight, power converter for backlight.
Hard disk
Motherboard
Hard disk drive
Hard disk controller.
Hard disk mechanism.
Keyboard
Motherboard
Keyboard
Keyboard cover
CD player PCA
Keyboard controller, keyboard BIOS.
Key switches.
One-Touch buttons.
CD player buttons.
Touch pad
Motherboard
Top case
Keyboard BIOS.
Touch/scroll pad sensors, click buttons.
Audio
Motherboard
Display assembly
USB PCA
Volume control PCA
Speakers
Audio controller, audio decoder, speaker amplifier, external
microphone jack.
Microphone.
Headphone jack.
Volume control.
Sound output.
Status
Motherboard
Top case
Keyboard cover switch PCA
CD player PCA
LED circuitry, keyboard controller.
Status LEDs.
Status LEDs.
CD/DVD status display.
Parallel
Motherboard I/O controller, parallel connector.
USB
Motherboard
USB PCA
Bus controller, USB connectors.
USB connectors.
PCMCIA
Motherboard
PCMCIA sockets
PCMCIA controller.
PCMCIA connectors.
SD-MMC
Motherboard SD/MMC controller
SD/MMC connector
Infrared
Motherboard
CD player PCA
I/O controller.
Infrared transmitter/receiver.
Wireless
Display assembly
Motherboard
Mini-PCI PCA
Bluetooth PCA
USB PCA
Antennas, on-off button, indicator light.
I/O controller.
Radio PCA circuitry.
Radio PCA circuitry.
On-off button, indicator light.
Docking
Motherboard Docking logic, docking connector.
PC card
Motherboard PC card controller, PC card connector.