Epson Equity LT-386SX User Manual - Page 57

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