13 USING THE SCREEN KEYS the screen with your finger to select the appears inside the key or to start the ration indicated inside the key. uch the key with your finger only. ointed instrument such as a sharp rewdriver or a hard object to touch do not press down too hard on the wise problems may result. ABOUT THE SCREE N t times because of changes in the d is not the sign of a malfunction. ADJUSTING THE BRIGHTNESS OF TH E SC 1. While touc on again. hing the LCD, turn the power off and then back ” key to soften the characters on the screen, key to sharpen them. have finished adjusting, turn the power off and gain once more. 2. Press “ or “ ”