Extron electronic MLS 103 V - Manual (Page 14)

MediaLink VersaTools Switchers • Operation MediaLink VersaTools Switchers • Operation
Operation, cont’d
Troubleshooting
1. Connect the cables between the MLS and the A/V input
devices. Connect the provided power supply and a host
computer, third party control system, or MediaLink
Controller to the MLS’s MLC/RS-232 Power port.
Connect the MLS to the display device (projector) and
audio output device (tape deck, speakers).
2. Connect the control device (computer, control system, or
MLC 206), the A/V source devices, projector and audio
output device to a power source and turn them on.
3. Start the MediaLink Control Program, and set up the MLS
(and the MLC, if one is used). See chapter four.
To set up the MLS 100 Series switcher you must use
MediaLink Control Software version 2.0 or higher
.
See the second note on page 2-9. If the software version
is below 2.0, download a new version of the software
from the Extron Web site, www.extron.com.
4. Press an input button on the MLS, watch the MLS’s LEDs,
observe the display, and listen to the audio.
4a. If the input selection LED does not light when a
button is pressed, the MLS might not be receiving
power. Check the wiring at the MLS’s MLC/RS-232
Power port.
• If the conductor assignments are not correct, the
circuits may be damaged if power is applied to the
wrong pole.
• If the wiring is correct, ensure that the power
supply has been plugged in to a functional power
source.
4b. If power is present at the MLS and at the input and
output devices, but nothing happens (an A/V
switch is not detected) when a button is pressed:
• If a MediaLink Controller is part of the system, the
MLC’s firmware may be too old. If it is older than
version 1.04, contact Extron for a firmware
upgrade.
The MLC to which the MLS 100 Series switcher is
connected must have MLC firmware version 1.04 or
higher
. Use one of the following methods to find out the
version levels of the MLC’s firmware and the control
software.
• Connect the MLC’s RS-232 port to a computer or
RS-232 controller, and send an SIS command of Q to
3-4
the MLC. The MLC will respond with its firmware
version.
• Connect the MLC’s RS-232 port to a computer, start
the MediaLink control software, and click on Help to
display the software version, the MLC’s firmware
version, and the MLS’s firmware version.
• The audio settings may be too low. Adjust the
Aux/Mix level by turning the Aux/Mix Level
adjustment on the front panel. Adjust each
selectable input’s level by using SIS commands, a
control system, or the Switcher (MLS) Config. part
of the MediaLink Control Software.
• The input or output connectors may not be firmly
attached to the MLS, or they may be miswired.
4b. If power is present, but sound from inputs 1
through 4 isn’t audible,
and if changing the audio
volume and gain/attenuation settings does not
resolve the problem, make sure that neither audio
input 0 nor audio mute is selected. Use the SIS
information (I) command or the MediaLink Control
Program to determine the audio settings.
5. Call the Extron S 3 Sales and Technical Support Hotline if
the equipment still does not respond when the MLS’s
buttons are pressed.
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