Dixon Systems NM-250 MKII Manuel du propriétaire télécharger pdf (Page 15)

Dixon Systems NM-250 MKII

Monitor System

The monitor system in the NM-250 MKII makes this mixer extremely versatile. It

contains a built in headphone amplifier, a line driver for the RM-35 (or other) stereo

monitor amplifier, a cue system, talkback returns, and an external input for an off-air

feed.

Cue and talkback are routed to the right side of the headphone and monitor outputs

whenever a cue button is pressed, or an external command from the talkback system is

received. As well, a front panel switch permits monitoring of either the mixer’s output or

an off-air feed. A dim resistor may be installed to permit a small amount of right channel

information to be mixed with cue/talkback if desired. A front panel LED illuminates

whenever a cue button is pressed or a talkback is activated. Switching is accomplished

with miniature 24V relays.

As seen in the schematic below, signals from either the mixer’s output amplifiers or

the off-air inputs are sent to the monitor summing amplifier. The Dim relay suppresses

the signal of the right channel whenever a cue button is pressed.

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Dixon Systems NM-250 MKII Manuel du propriétaire Page 15