User manual CASIO FX-795P

[. . . ] These limits are designed to provide reasonable protection against harmful interference in a residential installation. [. . . ] This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · Reorient or relocate the receiving antenna. · Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Slide the battery compartment cover back into place, and then press the RESET button on the back of the calculator with a thin, pointed object. When you do, the RESET screen illustrated nearby appears. RESET button 1 4. Use the cursor keys (f, or simply press c, d, e) to select the CONT icon and press w h to display the contrast adjustment screen. 7. Press d to make the figure on the screen lighter or e to make them darker. [. . . ] Press d to make the figure on the screen lighter or e to make them darker. [. . . ]