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6
ProMix-1 Installation and Operation Manual
INSTALLATION
REMOTE CONTROL AND INTERFACE CONNECTORS
TALLY/REMOTE CONTROL JACK
The MICROPHONE MUTE/WARNING LIGHT TALLY output and Program/Mic
Remote Control input is provided on a 3.5mm TRS jack labelled “Tally/Remote”
(7.) The Tally relay output can be used to operate a user supplied “ON AIR” warn-
ing light controller, etc. The relay contacts are rated at 12-volts DC@1A maximum.
The ProMix-1 is equipped with one remote on/off control input to turn the program
output on and off. Simple momentary contact closures to ground will perform this
function.
The pin out is as follows:
TIP:
On/Off Input. Triggered by a momentary closure to ground.
RING:
Program/Mic Tally Relay Output. Normally open relay contact.
Sleeve:
Ground/Relay Common
DO NOT EXCEED THIS RATING. NEVER CONNECT THESE CIRCUITS
TO A 110 VOLT AC LINE!
DC POWER INPUT JACK
Connect the center-positive 2.1mm coaxial barrel type power connector into the
power jack (8.) and the 12 VDC universal switching power supply with domestic
connector into a 120 Vac 50-60 Hz power source. Never use any type of power
supply other than the specified/supplied power supply.
ADJUSTMENTS
MICROPHONE INPUT GAIN ADJUSTMENT
The microphone input has a GAIN adjustment trimmer (9) to optimize the micro-
phone preamp gain for the microphone being used. The gain can be adjusted from
+28 dB to +60 dB. Set the microphone channel’s rotary control to three o’clock and
turn Program audio on and adjust the gain trimmer to a normal level. Use a small
screwdriver to adjust the gain trimmer as needed.
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