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400-0199-003 10
TROUBLESHOOTING GUIDE 8
We have carefully tested and have found no
problems in the supplied DA1931CT. However, we
would like to offer suggestions for the following:
8.1 LED IS NOT RED
The LED should be ON and RED when power is
applied and there is no video signal present. If
the LED is ON and GREEN, the unit is receiving
power and a SYNC signal.
Cause 1: No AC power.
Solution: Verify the adapter is plugged into a
working AC outlet and that the outlet
has power.
Cause 2: Adapter is not plugged into
DA1931CT.
Solution: Verify the DC power plug coming
from the AC adapter is plugged all
the way into the DA1931CT.
Cause 3: The DA1931 has a problem.
Solution: If there is AC power to the adapter
and the LED still does not turn on,
the DA1931CT or the power adapter
may require service. Call ALTINEX
at (714) 990-2300.
8.2 LED IS NOT GREEN
Cause 1: There is no power.
Solution: Disconnect the video input from the
DA1931CT and verify the LED is ON
and RED indicating power is
present. Reconnect the computer's
video output. If the LED is still not
GREEN see Cause 2.
Cause 2: There is no Sync signal.
Solution: Verify the computer output is
operating correctly by connecting it
directly to a monitor. If the display is
good, call ALTINEX at (714)
990-2300.
8.3 NO SOUND
Cause 1: The source has a problem.
Solution: Check the source and make sure
that there is a signal present and all
source connections are correct. If
the source is working and there is
still no sound, see Cause 2.
Cause 2: The volume is too low.
Solution: Increase the AUDIO GAIN toward
maximum. If there is still no sound
present, see Cause 3.
Cause 3: Cable connections are incorrect.
Solution: Make sure that cables are properly
connected. Also, make sure that the
continuity and wiring are good. If
there is still no sound, see Cause 4.
Cause 4: The receiving device has a
problem.
Solution: Make sure the receiving device has
power and is turned ON. If there is
still no sound, please call Altinex at
(714) 990-2300.
8.4 NO REMOTE IMAGE
Cause 1: The source has a problem.
Solution: Check the image on the local
monitor and verify the quality is
good. If the local image is good, see
Cause 2.
Cause 2: Video equalization required.
Solution: Adjust the VIDEO EQUALIZATION
on the DA1931CT. Long cable runs
may require adjustment on both the
DA1930CT and the DA1931CT.
In general, cable runs less then 50
feet require little or no video
equalization and should be set to
minimum. Cable runs up to 400 feet
will require maximum equalization
on both the transmitter and receiver.