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EXTERNAL
VGA MONITOR
MAIN BOARD
XD BUS
SD BUS
Input From
AC Adapter
SYSTEM &
VGA BIOS
XD BUS
Super I/O
Controller
RS-232
Serial Port
Drivers/
Receivers
C&T 65540
Intel
100 MHz
Pentium
Processor
Video
Controller
System
Controller
State Machine
& Glue Logic
PCMCIA Adapter
Internal Hard Drive
Power Supply
Section
Internal
Touchpad
Keyboard/PS2
Mouse Logic
Memory
Board
PCMCIA Option Slot(s)
512KB
Video RAM
Clock Generator
640 X 480
VGA LCD
Inverter
Board
Located internal
to the LCD
Assembly
RAM
Expansion
Modules
Internal Floppy Drive
Parallel Port
Internal LCD Display
Internal Keyboard
Figure 4-1 Notebook Functional Block Diagram
4-2
Theory of Operation