Adjusting The Mp 101; Remote Control; Remote Connector Wiring; Remote Control Options - Extron electronics MP 101 User Manual

Adjusting the MP 101

After the MP 101 has been properly mounted and connected, do the following to adjust it:
1.
2.
3.
If there is minimal distortion, but greater volume is required, turn the Mic Gain potentiometer
clockwise (towards the 75 dB mark) to increase the volume, but not past the point where
distortion occurs.

Remote Control

The wiring and control options described below pertain to all models in the MP 101 series.

Remote Connector Wiring

As shown below, Pin 1 is 10 VDC reference voltage. Pin 2 is volume control DC voltage;
range is 0 to 10 V, where 0 V is mute and 10 V provides maximum volume. Pin 3 is ground.
NOTE:
MAX
10K
MIN
Figure 6.

Remote Control Options

The MP 101 has three remote control options:
1.
2.
3.
If using a condenser microphone, set the Phantom power switch to the ON position.
If using a dynamic microphone, set the Phantom power switch to the OFF position.
When using the microphone for voice audio, flip the Low Cut switch to ON to reduce
wind and "table rumble" noise.
When using the microphone for music audio, flip the Low Cut switch to OFF to
preserve the optimum sound quality.
Set the Mic Gain potentiometer by saying a few words into the microphone and
adjusting for the maximum sound level that is free of distortion.
NOTE: If there is a remote control connection, unplug it while adjusting the Mic Gain
potentiometer. Replace the remote control when finished.
All nominal levels are at ±10%.
REMOTE
1 2 3
10V
VOL/MUTE
MP 101
1
MIC TO LINE
PREAMPLIFIER
2K
POWER
2
12V
0.3A MAX
MUTE
3
GND
Remote Connector Wiring
The Extron VCM 110 AAP volume/mute controller, VCM 200 Series volume/mute
controller, VC 50 volume controller, MLC 55 RS VC, and MLC 64 RS VC D use a 10 k
ohm potentiometer as the main method for controlling volume levels.
The Extron MLA-VC10 Plus converts RS-232 serial command to 0 to 10 V variable DC
for volume control.
Generic volume/mute controllers are standard 10 k ohm potentiometers.
LINE
OUTPUT
MIC
INPUT REMOTE
10V
VOL/MUTE
MP 101 Series • MP 101 7