Extron Electronics MVC 121 - Manual (Page 24)

MVC 121 • Installation and Operation
Installation and Operation, cont’d
2-12
Front Panel Features
MIXER/VOLUME CONTROLLER
MVC 121
MIC 1
VO
L
MIC 2 MAIN 3 MASTER
2 1 3 4 5
1
All front panel control knobs are speed sensitive. Turn
the knob quickly to make coarse gain/volume
adjustments or slowly to make fine adjustments.
1 Gain/Volume level LEDs — The four vertical LEDs indicate the
level setting of the last adjusted knob of the four front panel
volume control knobs for Mic 1, Mic 2, Main 3, and Master. If no
knob is adjusted within 5 seconds, all four LEDs turn off.
Turning any of the knobs clockwise increases the gain/volume
setting, and turning any of the knobs counterclockwise
decreases the gain/volume setting. A higher gain/volume level
is indicated by more LEDs being lit (from bottom to top).
When the Mic 1, Mic 2, and Main 3 maximum gain setting is
reached (+12 dB), the top LED flashes three
times. When the minimum setting is reached
(-79 dB) or if no knob is turned for 5 seconds,
the four LEDs are off until the next
adjustment. The default input gain setting is 0
dB. See the dB levels and the corresponding
LEDs in the illlustration.
When the maximum volume setting is reached (92), the top
LED will flash three times. When the minimum
setting is reached (0) or if no knob is turned for
5 seconds, the four LEDs are off until the next
adjustment. The default output volume setting
is 50. See the level and the corresponding LEDs
in the illustration on the right.
2 Mic 1 input volume control and on/off status LED — Turning
the knob clockwise increases the gain setting, and turning the
knob counterclockwise decreases the volume setting. The
on/off LED indicator lights whenever Mic 1 is on or not muted,
but the LED goes off after the minimum volume setting has
been reached.
VO
L
+12 dB maximum
+10 dB
0 dB (default)
-30 dB
-50 dB
VO
L
92 maximum
90
80
50 (default)
20