Internal Design; Figure 1-4. Replaceable Module Diagram - HP OmniBook 7100 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 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.
Top Case
Audio
PCA
PCMCIA
Cards
Video
PCA
Plug-In
Module
(pointing stick)
1-12 Product Information
Icon PCA
(Status, IR, Mic)
Touch pad,
Speakers
DC-DC
PCA
BIOS
IC
Motherboard
PCA
Pointer-Ctrl
Hard
PCA
Disk
Drive
Keyboard
Front-IR
PCA
(LEDs)

Figure 1-4. Replaceable Module Diagram

LCD
Module
Inverter PCA
LVDS
PCA
Battery
Module
Fan
Heatsink
HP OmniBook 7100
RAM
Boards
CPU
Module
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.