Data Sheet

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LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL [phone] FAX [phone]
website: www.louroe.com e-mail: [e-mail]
(818)
®
mla_8_inst_5/11
INSTALLATION AND OPERATING INSTRUCTIONS
MICROPHONE ADJUSTMENT CONTROLS
On MLA-8 PC board are eight potentiometers (marked 1 thru 8) and one MASTER CONTROL marked “MAIN”.
They are for controlling the microphone gain and have been pre-set at the factory. DO NOT MAKE ANY
ADJUSTMENTS ON THE MLA-8 UNTIL ALL MICROPHONE AND SPEAKER CONNECTIONS HAVE BEEN
MADE TO THE LOUROE BASE STATION OR OTHER RECEIVING DEVICE.
A. If connected to a sound activated ALARMING BASE STATION (Models DG-25III, DG-12II or any of the
ALA series)...
1. First set zone threshold following procedures outlined from base station installation instructions.
2. If the zone is too sensitive and goes into alarm unnecessarily, adjust MASTER CONTROL
potentiometer on MLA-8 board (marked “MAIN”) 1/8 of a turn counterclockwise. If still too
sensitive, decrease by 1/8 turn counterclockwise until desired sensitivity is attained. In the
event zone is not sensitive enough, adjust master control potentiometer 1/8 turn clockwise.
Repeat if necessary.
3. If it is determined that a particular microphone within the zone is too sensitive, adjust the correct
potentiometer (marked 1 thru 8) counterclockwise 1/8 turn. Repeat 1/8 turn as necessary.
B. If MLA-8 is connected to a NON-ALARMING LOUROE BASE STATION (APR-1, AP-2,
AP-4, AP-8, AP-12TB or AP-16TB). Potentiometer adjustment is usually unnecessary.
EXCEPTION: If microphones are overdriving DVR/VCR or other external equipment, adjust master control
potentiometer 1/8 turn counterclockwise to reduce microphone sensitivity. Repeat if necessary.