Comen C80 - Heart Beat Volume; KEY VOL (Keyboard Vol ); LCD LIGHT（LCD Brightness); MONITOR SETUP (Monitor Setting)

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"OFF" level means the alarm sound is closed.

WARINING

Where the alarm volume of the system is set at OFF, the monitor will not give alarm

sound in case of alarm, so you should use this function carefully.

3.3.2 HEART BEAT VOLUME

In the “SYSTEM MENU” select the “SELECTION”. Pitch on the “BEAT VOL ” with the cursor

and turn the knob to select the volume from such five options as “OFF”, “1”,“2”、“3” and “4”.

3.3.3 KEY VOL (Keyboard Vol )

Pitch on the “KEY VOL ” with the cursor and select the volume from such five options as “OFF”,

“1”,“2”、“3” and “4”.

3.3.4 LCD LIGHT（LCD Brightness)

In the system there are five Brightness level, i.e. “1~5”, where “5” means the maximum

brightness.

3.4 MONITOR SETUP (Monitor Setting)

Select MONITOR SETUP in MAIN MENU, sub-menu following with figure below, including

Fig 3-5 Monitor Setup