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A connector on the rear of the computer interfaces with either expansion
base to provide additional functionality. The expansion base replicates
the following computer connectors:
o Serial connector
o Parallel connector
o External monitor connector
o PS/2-compatible mouse connector
o Power connector
o External keyboard connector
o All audio connectors except mono microphone jack
Additional MultiBay Expansion Base and MultiBay ISA details are presented
in Section 1.5.
Power Board
The power board is a DC-to-DC converter that provides the required
voltages of +3.3 and +5 volts from one of the power sources (main battery
pack, AC Adapter, or Automobile Adapter).
The power board is provided as a field replaceable unit. To remove and
replace the power board, you must first remove the CPU cover, keyboard,
and processor board. The power board connects to the system board with two
connectors and is secured in place with one screw.
Keyboard
The keyboard is available as an assembly consisting of the following
parts:
o Keyboard
o Keyboard bezel
o Battery release
o MultiBay device release
o EasyPoint II controller
The battery release, MultiBay device release, and EasyPoint II controller
are also available as replaceable units.
To remove the keyboard assembly, the CPU cover must be removed first. The
keyboard ribbon cable (ZIF connector) and EasyPoint II controller cable
must be disconnected. Three screws on the bottom on the system unit and
four screws across the front (inside of the MultiBay and dedicated battery
compartment) must then be removed to release the keyboard.