Extron Electronics MVC 121 - Manual (Page 7)

MVC 121 • Quick Start Guide
5 Variable output connector — The balanced/unbalanced stereo
output is controlled by the Master volume control knob on the
front panel.
6 Fixed output connector — The balanced/unbalanced stereo
output is set at a fixed level for input to a recording device.
Signal level can be adjusted at the recording device.
7 RS-232 connector — Connect an RS-232 device (control system
or PC) for two-way RS-232 communication.
8 Mute connector — Connect a contact closure device to mute
the inputs. See “Contact Closure Mute” in chapter 3.
Step 4
Adjust the front panel volume controls. See chapter 2, “Installation
and Operation”.
MIXER/VOLUME CONTROLLER
MVC 121
MIC 1
VO
L
MIC 2 MAIN 3 MASTER
2 1 3 4 5
1
1 Volume level LEDs — Mic 1, Mic 2, Main 3, and Master gain/
volume level indicators.
2 Mic 1 input gain control and on/off indication LED
3 Mic 2 input gain control and on/off indication LED
4 Main 3 line level input gain control and on/off indication LED
5 Master output volume control and on/off indication LED to
control variable output
QS-3