The internal volume control can be adjusted so that the alarm is audible even if the ALARM volume control is at the minimum position.

For more information, refer to the Maintenance Manual (not supplied).

2

qs MONITOR volume control

This control adjusts the speaker or earphone volume for sounds other than the alarm sound. At the minimum position, no sound can be heard.

qd MONITOR (audio channel select) switch /CH-1/2 / CH-3/4 (audio channel 1/2 / audio channel 3/4 select) switch

MONITOR switch

CH-1/2 / CH-3/4 switch

MONITOR switch and CH-1/2 / CH-3/4 switch

CH-1/2 / CH-3/4 switch

This switch decides the audio channel to be selected by the MONITOR switch.

CH-1/2: Audio channels 1 and 2

CH-3/4: Audio channels 3 and 4

The following settings depend on the CH-1/2 / CH-3/4 switch setting:

•The signal output to the AUDIO OUT connector 8 is switched. CH-1/2: Audio channels 1 and 2

CH-3/4: Audio channels 3 and 4

•The audio signal indicated by the audio level meter in the display window is switched.

2-10Chapter 2 Locations and Functions of Parts and Controls