Trouble Shooting - Videx 25H/SP/DDA/2W Technical Manual

25H/SP/DDA/2W

TROUBLE SHOOTING

Symptom
Programmer software not
seeing UIM-138 display
module.
Nothing shown on the
UIM-138 display module.
No speech annunciation
coming through the 138N
speaker amp.
The auxiliary inputs on
the UIM-138 display
module aren't performing
as expected.
The auxiliary output
on the UIM-138 display
module is not performing
as expected.
The system has power but
the intercom door panel
does not switch ON.
25H/SP/DDA/2W - TECHNICAL MANUAL
(1 way "2 wire" DDA audio intercom kit)
Tests / Checks to carry out
Check that the USB cable is connected firmly between the UIM-138 display
module and the PC or laptop.
Check the COM port connection via the programmer software using the 'Check
Connection' feature (described on page 24).
Check that the UIM-138 display module has +12Vdc power by checking the
138N wire harness is firmly plugged in between the UIM-138 display module
and the 138N speaker.
Check that the 138N speaker has 12Vdc connected, if necessary check the dc
psu has a steady 12Vdc output.
Check that the contrast control on the UIM-138 display module hasn't been
turned down. Try adjusting the contrast control until the display shows the
programmed message (refer to page 11).
If there is still nothing shown on the UIM-138 display module try performing a
module reset (described on page 35).
Check that the volume control on the UIM-138 display module hasn't been
turned down. Try adjusting the volume control until there is speech playback
(refer to page 9).
Check that the volume and balance POTs on the back of the 138N speaker
haven't been turned down. Try adjusting the volume and balance POTs on the
back of the 138N speaker amp until there is speech playback.
Check the speech playback setting hasn't been switched off via the programmer
software on the 'settings' window (refer to pages 16 - 17).
Using the programmer software check that the auxiliary inputs have been
setup correctly according to the users requirements (refer to pages 17 - 18 for
the auxiliary input modes).
Check the wiring between the auxiliary inputs and the push buttons or the
devices they are connected to are not damaged in any way (this will also depend
on the users requirements).
Using the programmer software check that the auxiliary output has been setup
correctly according to the users requirements (refer to page 18 for the auxiliary
output modes).
Check the wiring between the auxiliary output and the device it's connected
to is not damaged in any way (this will also depend on the users requirements).
Check the GND and +12Vdc connections on the Art.521 PSU and on panel the
Art.138N speaker, also check the voltage output on the PSU with and without
load.
36
VIDEX
EN-UK - V.1.2 - 04/01/16