3.2.3
Cover Release Latch
The Notebook contains one Cover Release latch . To open the notebook, slide the
Release Mechanism to the right and lift up on the front edge of the notebook cover.
3.2.4
Touch Pad Controls
The Extensa 450 Series Notebook Computers are equipped with a built-in mouse
device called “the Touchpad” physically located at the bottom of the keyboard (see
Figure 3-1).
The cursor is positioned by touching and draging your finger in the direction you
want the cursor to go. The select functions are performed either by tapping the
touch pad or by pressing the two buttons (switches) at the bottom of the keyboard.
You can change the operation of the pad by changing values in the mouse section of
the Windows 95 Control Panel. Once your cursor is in the proper place and you
want to select, use the left button to click or double click just as you would a mouse.
3.2.5
Keyboard Mode LEDs
The Notebook contains three “keyboard mode” indicators just above the keyboard
on the left side (notebook cover open). These LEDs include:
•
CAP (Caps Lock)
Indicator- this LED indicates that the keyboard is locked in
the Uppercase mode. To switch to the Lowercase mode, press the
Caps Lock
key on the keyboard.
•
NUM (Num Lock)
Indicator- This LED lights when you press the
Fn-F7
(NumLk) keys to toggle on the numeric keypad lock function. When the LED is
On, the embedded numeric keyboard keys generate AT-keypad characters and
functions when pressed in conjunction with the Fn key.
When the NUM indicator is Off, pressing the Fn key with the appropriate keys
provides cursor movement, paging and other functions in the normal mode.
When the NUM indicator is On, the embedded numeric keypad becomes a
temporary numeric keypad that does not require you to press any other key.
•
SCRL (Scroll Lock)
Indicator- This LED lights to indicate that the keyboard is
locked in the scroll mode.
3.3
Operating Procedures
Some of the operating features useful for notebook maintenance are provided in the
following paragraphs. For additional operating instructions, refer to the Extensa
450 Series Notebook Computer User’s Manual
,
Texas Instruments Part No.
9803942-0001
.
3.3.1
Floppy Drive Operating Procedures
To avoid damaging the floppy drive drive, and to protect data, take the following
precautions:
Operating Instructions
3-3