Epson Equity LT-386SX, Руководство пользователя

Страница: 57 / 235

Selecting Execution Speed
The Equity LT-386SX can operate at two execution speeds:
8 MHz and 16 MHz. At the higher speed, the computer
performs all tasks more quickly. Select the slower speed to run
application programs that have specific timing requirements
and to prolong the battery’s charge.
You can select the CPU clock setting in the SETUP menu. (See
the description of running the SETUP program in Chapter 1.)
The Equity LT-386SX always starts at the clock speed
established in the SETUP menu.
While the computer is operating, you can change the clock
speed by holding down
Ctrl and pressing left Shift and F
simultaneously. (The status indicator bar displays the current
clock speed. )
Selecting LCD Screen Contrast
The LCD can display white letters on a black background
(positive LCD contrast) or black letters on a white background
(negative LCD contrast). You can select the contrast in the
SETUP menu. (See the description of running the SETUP
program in Chapter 1.)
At any time while the computer is operating, you can invert the
contrast by holding down
Ctrl and pressing left Shift and I
simultaneously. Hold down
Ctrl
and press
left Shift
and
I
again
to change the contrast back. Using this key sequence during
operation does not affect the setting the Equity LT-386SX uses
when you turn on or reset it.
Using the Equity LT-386SX
2-11