Texas Instruments 3000 WinSX - Manual (Page 24)

LCD Screen
You can use the computer with the cover/screen closed, for example, to connect an
external monitor to your computer to run a demonstration program. For this purpose, you
can disable the cover-closed alarm by changing the Cover Closed Action setting in the
Setup Program to Disabled (see Chapter 4).
Screen Controls
The LCD screen is illuminated to enable you to control background brightness and
contrast for better readability. The backlight turns on automatically when you turn on the
computer.
Note: To conserve battery power and prolong screen life, you can set the backlight to
turn off automatically if you do not use the keyboard for a preset time. Set the delay
period at the Setup Program menu described in Chapter 4. Press the Shift key
(recommended) or almost any other key on the keyboard to turn the backlight on again.
Brightness Control
The Brightness rotary control adjusts the brightness of the illuminated screen. Adjust
this control in conjunction with the Contrast control.
Note the index mark on the Brightness control. Set the index mark to the up position for
the brightest image, but the highest battery power consumption. Set the index mark
facing left for medium brightness and lower power use. Set the index mark facing down
for the least battery power consumption.
2-4 Learning About Your Computer