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J.W. Davis & Company
3030 Canton Street • P.O. Box 710219 • Dallas, Texas 75371-0219
Sales 800-527-5705 • Fax 800-388-9106 • Corp 214-651-7341 • Fax 214-939-0328 • [email protected] • www.jwd.com
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8
VI - CIRCUIT BOARD LEVEL SETTINGS FOR ADDITIONAL FEATURES
To give microphone 1 precedence over microphones 2 - 6, change the jumper #JP-205 to the
ON
posi-
tion and jumper #JP-203 to the
OFF
(Mute MIC One) position. These jumpers are located on the rear of
the lower circuit board
for easy access (Fig-
ure 3). This feature is
especially useful where
a conference chair-
man, a podium
speaker, a dispatcher
or other speaker may
require primary access
to the system.
ACTIVATION OF TELEPHONE VOX MUTING
The default setting of the DA-120M is shipped from the factory with the telephone VOX mute activated
and will mute the six MIC/AUX inputs.
ACTIVATION OF THE SYSTEM OVERRIDE INPUT TO BECOME A PRIORITY INPUT
The default setting of the System OverRide is for sound
masking applications. Jumper #JP-301 (Figure 4) will
allow the Signal OverRide to become a priority input
and mute all inputs except the Music-On-Hold to the
telephone system.
WARNING: The following changes should be made only by a qualified
technician to avoid the risk of electrical shock and of voiding the warranty
due to improper circuit wiring.
Figure 3
Figure 4
ACTIVATION OF MICROPHONE 1 VOX MUTING
The jumper is located on the upper circuit board, close
to the SOR input.
