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1-12 Product Information HP OmniBook 7100
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 1-13—it lists the roles the replaceable modules
play in each of the functional subsystems.
PCMCIA
Cards
CPU
Module
Video
PCA
Hard
Disk
Drive
Front-IR
PCA
(LEDs)
Plug-In
Module
Battery
Module
Keyboard
(pointing stick)
RAM
Boards
Heatsink
LVDS
PCA
Inverter PCA
Icon PCA
(Status, IR, Mic)
LCD
Module
Top Ca se
Motherboard
PCA
BIOS
IC
Pointer-Ctrl
PCA
DC-DC
PCA
Audio
PCA
Touch pad,
Speakers
Fan
Figure 1-4. Replaceable Module Diagram
The power switch
and lid switch are
contained on the
icon PCA.
All external
connections (except
front and back IR)
are made to the
motherboard.