Epson Equity LT-386SX User Manual - Page 36

The speed indicator on the status bar shows your operating speed (16 MHz), and after a few seconds the computer begins to perform an internal self test. This is a diagnostic program the computer runs whenever you turn it on. The power-on self test checks the RAM (random access memory), keyboard, system board, and peripheral interfaces before the computer begins normal operation. Adjusting Screen Contrast and Brightness If you cannot see text on the screen clearly, use the levers on the right side of the screen to adjust the screen's contrast and brightness. The levers are shown below: contrast lever The contrast lever on the right determines how bright the characters appear against the background. To increase the contrast, move the lever up. To decrease it, move the lever down. The brightness lever on the left controls the intensity of the screen's backlighting. To make the backlighting brighter, move the lever up. To decrease the backlighting, move the lever down. When you're running the computer on the battery, do not make the screen brighter than necessary to read the text clearly. This helps to conserve the battery's charge. Setting Up Your System 1-17