HP Omni BOOK 4100 Internal Design

Internal Design

The motherboard PCA is the central component of the OmniBook design. It plays a role in virtually all system functions. The CPU module (MMO) and most other subsystems connect to the motherboard.

The following figure shows the connections among the replaceable electrical modules. As a substitute for a functional block diagram, see the table on page 1-15—it lists the roles that the replaceable modules play in each of the functional subsystems.

LCD Module

Keyboard cable connects to VGA PCA (OmniBook 4100) or motherboard (OmniBook 4150 Series).

Inverter PCA (microphone)

LED Strip

Keyboard

Top Case

(pointing stick)

LVDS

(touch pad support)

LVDS PCA is not present in the

PCA

OmniBook 4150B.

VGA PCA

IR

PCA

The BIOS IC is not

Fan

DC-DC

removable on the

BIOS

OmniBook 4150 Series.

PCA

IC

Two RAM slots are

CPU

Motherboard

PCMCIA

PCMCIA

available on the

Module

Socket

Cards

OmniBook 4150 Series.

PCA

The power switch and lid

RAM

Audio Jack

Board

PCA

switch are contained on

Hard Disk

the motherboard.

Speaker

Speaker

Drive

All external connections

(except IR and audio) are

Plug-In

Main

made to the motherboard.

Module

Battery

or Battery

Figure 1-4. Replaceable Module Diagram

1-14 Product Information HP OmniBook 4100/4150