Problem Solving - ASL INTERCOM PS 155 User Manual

13.0

PROBLEM SOLVING

PROBLEM
PS 155 does not respond
No audio of the wireless
system to the party line
No audio from the party
line to the wireless system
Wireless unit does not
respond to the external
PTT switch
Units do not respond to
VOX
In VOX mode the units
stays in transmit mode
In VOX mode the signal is
briefly interrupted
After reception of audio
from the wireless unit the
PS 155 switches to
transmit briefly
The audio on the party line
changes when the PS 155
changes transmit and
receive mode
(interference/distortion).
! !
!
CAUSE
No power supply or defective
cable of the wired intercom
Cable not properly connected
PS 155 not (properly) connected
Volume on wireless unit too low
Cable to wireless unit not properly
connected
PS 155 not (properly) connected
TX Control not in the position PTT
Connection of the external switch
not properly done
Connection between wireless unit
and PS 155 incorrect.
TX Control switch not in the
position VOX
VOX level too low
Audio level on the wired intercom
line too low
VOX level too sensitive
Bad side tone rejection
Level of the wireless unit is too
high
VOX level not sensitive enough
Release time too short
Bad side tone rejection
Input signal is too high
Input signal is too high
Send and/or Receive volume too
high
Improperly connected cable.
Bad sidetone rejection
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User manual PS 155 / Issue 2011 © ASL Intercom BV
.
CHECK
Wired intercom power supply and party
line cable
Cable to the wireless unit
Cable to the wired intercom
Volume knob of the wireless unit
Cable to the wireless unit
Cable to the wired intercom
Change the TX Control switch to PTT
Connection of the external PTT switch
The cable and the details of both units..
Put the TX Control switch in the
position VOX
Turn the VOX level trimmer clockwise
Increase the audio level on the wired
intercom by speaking louder and closer
into the microphone.
Turn the VOX trimmer counter
clockwise
Re-adjust the side tone trimmers again
Turn the volume control of the wireless
unit down.
Turn the VOX LEVEL trimmer clockwise
Turn the VOX RELEASE trimmer
clockwise.
Re-adjust the side tone trimmers again.
Turn down the volume of the wireless
unit.
Turn down one or both levels
Check cables and connections.
Re-adjust the side tone trimmers again
!
!