Chapter 2. Getting Started the BHT and System Mode
Adjusting the LCD contrast
You can adjust the LCD brightness to eight contrast levels.
1)Use the 
or 
keys to select the LCD CONTRAST line.
2)To decrease the contrast, press the 
key; to increase it, press the 
key.
Switching the beeper & vibrator
You may choose any of three waysÑbeeping only, vibrating only, or beeping & vibrating as a confirmation of completion of
1)Use the 
and 
keys to select the BEEPER VIBRATION line that will be highlighted in any one of the following three states:
2)Use the 
and 
keys to highlight the desired way(s).
Adjusting the beeper volume
You can adjust the beeper volume to four levels from OFF to MAX.
1)Use the 
and 
keys to select the BEEPER VOLUME line.
2)To turn down the volume, press the 
key; to turn it up, press the 
key.
After making the above setting, press the ENT key or press no keys for five seconds, and the new setting will be fixed and the above screen will disappear.
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