Internal Design; Figure 1-4. Replaceable Module Diagram - HP OmniBook 3000 Service Manual

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 all 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 1-10—it lists the roles the replaceable modules
play in each of the functional subsystems.
PCMCIA
Cards
CPU
Module
Audio
PCA
Hard Disk
Drive
Keyboard
1-10 Product Information
LCD
Module
Speakers, Microphone)
Inverter PCA
LVDS
PCA
Kybd System
BIOS BIOS
Motherboard
PCA
RAM
Boards

Figure 1-4. Replaceable Module Diagram

IR
PCA
Top Case
Assembly (TouchPad,
Icon PCA
USB
PCA
Floppy Drive
or
Plug-In
Module
Main
Battery
Heat Sink
Assembly
The power switch
and the lid switch
are contained on
the Icon PCA.
All external
connections
(except USB and
IR) are made to the
motherboard.
HP OmniBook 3000