Clear-Com KB-702GM - Manual (Page 22)

K B - 7 0 2 / K B - 7 0 2 G M T W O - C H A N N E L S P E A K E R S T A T I O N S 3 - 4
VOX problems (KB-702GM
only) Stays tripped (amber light on).
Sensitivity set too high. Turn VOX sensitivity control in a
counter-clockwise direction.
Will not trip with voice. Sensitivity
set too low. Turn VOX sensitivity control in a
clockwise direction.
Note: VOX is intended for close-in
operation.
Excessive crosstalk High DC resistance has a ground
return. Use heavier cable; add additional
conductor(s) to ground return. If the
cable run is exceptionally long,
consider adding and using the
EB7-4W four-wire option module.
Multi-channel cable pairs are not
individually shielded. Replace cable with individually
shielded pairs.
Headset cables are not wired
properly or shielded properly. Correct wiring. Use headsets with
properly shielded wiring. Refer to
the chapter “Operation.”
Program signal sounds
distorted. Program level control set too high. Turn the program level control
counter-clockwise.
Overload of program input circuit. Reduce the gain of the program
signal at the source, such as an audio
mixer.
Call signal does not function. Excessive DC loading of intercom
line. Remove any audio transformers or
other equipment that may be
connected across the intercom line.
If equipment other than Clear-Com
intercom equipment must be
connected to the intercom line,
please contact Clear-Com
application or service personnel for
information or recommendations.
Far too many terminations on the
intercom line. Check all main stations and power
supplies to make sure each intercom
channel is terminated at only one
point.
Plug P1 missing on circuit board. Plug P1 must be installed in jack J1
if the EB7-4W or EB7-TW options
are not used.
SYMPTOM CAUSE SOLUTION