Power/ On Power on LED on top of unit Green
standby Flashing Standby (active when display is
open). Identical LED on
front of unit (active
when display is closed).
---------------------------------------------------------------------------
Battery On Battery Front of unit Orange
State charging
Flashing LowBatt 1
at one
per
second
Flashing LowBatt 2
at two
per
second
---------------------------------------------------------------------------
Hard Drive On Hard drive Front of unit Green
Activity being
accessed
---------------------------------------------------------------------------
Diskette On Diskette Front of unit Green
Drive drive being
Activity accessed
---------------------------------------------------------------------------
Scroll On Scroll lock Top of unit Green
Lock selected
---------------------------------------------------------------------------
Caps Lock On Caps lock Top of unit Green
selected
---------------------------------------------------------------------------
Num Lock On Num lock Top of unit Green
selected
===========================================================================
Display Switch
The computer has a display switch mounted on the power interface board
(PIB) located near the display hinge. When the display is closed, this
switch activates the front-mounted power/standby LED and simultaneously
deactivates the display and the top-mounted LEDs.
Trackball
The computer has an integrated PS/2 style trackball located on the display
bezel. The trackball is disabled whenever an external mouse is connected to
the keyboard/mouse connector. The trackball buttons are located on the back
side of the display.
1.5 Connectors
This section covers the I/O pass-through connectors on the computer
(Figure 1-4). Refer to Appendix A for connector pin assignments.
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