16Adjusting the LCD Contrast & Beeper Volumeand Switching the Beeper & VibratorWhile holding down the M1 or M4 key (right-hand trigger switch), press the PW key,and the following screen will appear on the LCD. This screen will disappear if nokeys are pressed for five seconds.When the beeper is selected(default)When the vibrator is selected When both the beeper andvibrator are selected(The current selection is highlighted.)Adjusting the LCD contrastYou can adjust the LCD brightness to eight contrast levels.(1) Use the F5 and F6 keys to select the LCD CONTRAST line.(2) To decrease the contrast, press the F7 key; to increase it, press the F8 key.Switching the beeper & vibratorYou may choose any of three ways—beeping only, vibrating only, or beeping &vibrating as a confirmation of completion of code reading.(1) Use the F5 and F6 keys to select the BEEPER VIBRATION line that will behighlighted in any one of the following three states:(2) Highlight the desired way(s) by using the F7 and F8 keys, referring to the abovefigure.