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400-0374-005
20
TROUBLESHOOTING GUIDE 8
We have carefully tested and have found no
problems in the supplied MT103-123. 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 signal.
Cause 1: No power to the card.
Solution: Verify the enclosure has power and
that other cards in the enclosure
have power. If there is still no power,
see Cause 2.
Cause 2: Card is not plugged in all the way.
Solution: Push the card in all the way. If the
LED is still not on, see Cause 3.
Cause 3: Card cage slot has a problem.
Solution 1: Test the card in other slots of the
card cage. If the slot was damaged,
the card may work in other slots. If
the card works in other slots and the
LED lights, the problem is the card
cage slot. The card cage may
require service. Call ALTINEX at
(714) 990-2300. If the other slots do
not work and the LED is still not lit,
see Solution 2.
Solution 2: Take any other known good card
with an LED and verify that the slot
used is good by seeing if the other
card’s LED lights in that slot. If it
lights, then the original card may be
the source of the problem. 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
MT103-123 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: 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 3.
Cause 3: 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.