LE Interface Troubleshooting Sessions

LE Interface Troubleshooting Sessions
PLEASE READ THIS INFORMATION BEFORE USING THE PRO TOOLS LE
TROUBLESHOOTING SESSIONS
Introduction:
The Pro Tools LE Troubleshooting Sessions provide a quick way to test the audio inputs/outputs and
MIDI ports of your LE interface. Depending on your unit, connections tested may include MIDI ports,
Optical (ADAT) ports, S/PDIF I/O, and Monitor Outputs. If any of these ports appear not to be working,
these sessions can quickly help to establish whether the problem is due to hardware failure or user error.
Often the problem is due to incorrect cabling or improper routing within Pro Tools. It is rarely hardware
failure.
Some slight modifications may be needed for the Troubleshooting Sessions to work properly with your
system, as explained below. and will be explained below. Once you have configured your cabling
correctly and launched the appropriate Pro Tools LE Troubleshooting Session you can quickly check if
your hardware is working correctly.
Important Note:
Make sure the audio monitors (speakers) connected to the audio outputs of your Digidesign hardware are
either muted or turned down. Some sessions may have a signal routed to the outputs, and could be
VERY LOUD depending on how your monitoring level controls are set. If you are using headphones be
sure to reduce the headphone volume.
Getting Started:
If you are having trouble transmitting a signal via the MIDI ports, ADAT ports, S/PDIF ports, or Monitor
Outputs, these sessions are already correctly configured in terms of internal Pro Tools routing. This
eliminates the question of incorrect routing being the cause of the problem. After connecting the
appropriate cables to the appropriate ports on your interface (details below) the correct Pro Tools LE
Troubleshooting Session must be launched. The session will only transmit a signal if the cables you are
using work correctly. Consequently, if the Troubleshooting Session fails to transmit a signal, the fault
could be a bad cable. In this case, try another cable in place of the one you are currently using.
There is a Troubleshooting Session specific to each platform for the following Pro Tools LE interfaces:
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003
003 Rack
Digi 002
Digi 002 Rack
Mbox 2 Pro
Mbox 2
Mbox
Note: You may use the Mbox Output session to test the Monitor Outputs on the Mbox 2 Mini.
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Cable connections for Digi 002 and Digi 002 Rack Loop Test:
In a Loop Test, an output signal on your unit is sent to its corresponding input such that the signal “loops”
back into the session (this is achieved by connecting the outputs to the inputs with a cable). In order to
launch the Pro Tools Troubleshooting Session, drag and drop the appropriate session file to your hard
drive and double-click it.
1) MIDI Loop Test (Digi 002 only): On the Digi 002, connect a MIDI cable from MIDI OUT 1 to MIDI
IN.
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Press the Standalone Button and select "yes" to enter standalone mode.
Press the F1/Utility button.
Press the SEL button beneath "Test" on the third scribble strip.
Press the SEL button beneath the right-pointing arrow on the eighth scribble strip.
Press the SEL button beneath "MIDI" on the second scribble strip.
Press the SEL button beneath "Out 1" on the first scribble strip. If the MIDI cable is good the
first scribble strip will read "Pass".
Connect the MIDI cable to MIDI Out 2 to repeat the test for the second MIDI output.
2) MIDI Loop Test (Digi 002 Rack Only): On the Digi 002 Rack, connect a MIDI cable from MIDI
OUT1 to MIDI IN. This will allow Pro Tools to pass a MIDI signal from the MIDI output port to the
MIDI input port. Start playback in Pro Tools to check that signal passes from the MIDI output to
the MIDI input.
3) ADAT Loop Test (Digi 002 and Digi 002 Rack): On the Digi 002 or Digi 002 Rack, connect an
Optical cable from OPTICAL OUT to OPTICAL IN. This will allow Pro Tools to pass an audio
signal from the Optical output port and receive it on the input of the Optical port. Start playback in
Pro Tools to check that signal passes from the Optical output to the Optical input.
4) S/PDIF Loop Test (Digi 002 and Digi 002 Rack): On the Digi 002 or Digi 002 Rack, connect a
75 Ohm digital RCA cable from S/PDIF OUT to S/PDIF IN. This will allow Pro Tools to pass an
audio signal from the Optical output port to the Optical input port. Start playback in Pro Tools to
check that signal passes from the S/PDIF output to the S/PDIF input.
5) Output Test (Digi 002 and Digi 002 Rack): On the Digi 002 or Digi 002 Rack, connect ¼-inch
jack cables from MON OUTPUT L/R to your speakers. Adjust your output volume accordingly.
Start playback in Pro Tools to check that signal passes from the audio outputs to your speakers.
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Cable connections for 003 and 003 Rack Loop Test:
In a Loop Test, an output signal on your unit is sent to its corresponding input such that the signal
“loops” back into the session (this is achieved by connecting the outputs to the inputs with a cable). In
order to launch the Pro Tools Troubleshooting Session, drag and drop the appropriate session file to
your hard drive and double-click it.
1) MIDI Loop Test (003 only): On the 003, connect a MIDI cable from MIDI OUT 1 to MIDI IN.
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Press the 'Utility' switch to enter Utility mode. If the Utility switch is not enabled (flashing),
press it.
Press the flashing 'Insert' switch that corresponds to the 'Test' menu. The LCD will show the
first page of utility tests.
Press the ESC switch to toggle to the second page of Utility tests.
Start the MIDI test by pressing the flashing Dynamics switch.
Press the EQ switch to begin testing MIDI Out 1.
If data is received on the MIDI jack, the LCD shows Pass. If data is not received, the LCD
shows Fail.
Connect a standard 5-pin MIDI cable from the MIDI In port to the MIDI Out 2 and repeat the
test to check MIDI Out 2.
When finished, press the flashing Display switch.
2) MIDI Loop Test (003 Rack only): On the 003 Rack, connect a MIDI cable from MIDI OUT 1 to
MIDI IN. This will allow Pro Tools to pass a MIDI signal from the MIDI output port to the MIDI
input port. Start playback in Pro Tools to check that signal passes from the MIDI output to the
MIDI input.
3) ADAT Loop Test (003 and 003 Rack): On the 003 or 003 Rack, connect an Optical cable from
OPTICAL OUT to OPTICAL IN. This will allow Pro Tools to pass an audio signal from the Optical
output port to the Optical input port. Start playback in Pro Tools to check that signal passes from
the Optical output to the Optical input.
4) S/PDIF Loop Test (003 and 003 Rack): On the 003 or 003 Rack, connect a 75 Ohm digital RCA
cable from S/PDIF OUT to S/PDIF IN. This will allow Pro Tools to pass an audio signal from the
S/PDIF output port to the S/PDIF input port. Start playback in Pro Tools to check that signal
passes from the S/PDIF output to the S/PDIF input.
5) Output Test (003 and 003 Rack): On the 003 or 003 Rack, connect ¼-inch jack cables from
MAIN L/R (in the "Monitor" section) to your speakers. Adjust your output volume accordingly.
Start playback in Pro Tools to check that signal passes from the audio outputs to your speakers.
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Cable connections for Mbox 2 Pro Loop Test:
In a Loop Test, an output signal on your unit is sent to its corresponding input such that the signal
“loops” back into the session (this is achieved by connecting the outputs to the inputs with a cable). In
order to launch the Pro Tools Troubleshooting Session, drag and drop the appropriate session file to
your hard drive and double-click it.
1) S/PDIF Loop Test: Not available.
2) MIDI Loop Test: On the Mbox 2 Pro, connect a MIDI cable from MIDI Out to MIDI In. This will
allow Pro Tools to pass a MIDI signal from the MIDI output port to the MIDI input port. Start
playback in Pro Tools to check that signal passes from the MIDI output to the MIDI input.
3) Output Test: On the Mbox 2 Pro, connect ¼-inch jack cables from Mon Out L / R to your
speakers. Adjust your output volume accordingly. Start playback in Pro Tools to check that signal
passes from the audio outputs to your speakers.
Cable connections for Mbox 2 Loop Test:
In a Loop Test, an output signal on your unit is sent to its corresponding input such that the signal
“loops” back into the session (this is achieved by connecting the outputs to the inputs with a cable). In
order to launch the Pro Tools Troubleshooting Session, drag and drop the appropriate session file to
your hard drive and double-click it.
1) S/PDIF Loop Test: On the Mbox 2, connect a 75 Ohm digital RCA cable from S/PDIF Out to
S/PDIF In. This will allow Pro Tools to pass an audio signal from the S/PDIF output port to the
S/PDIF input port. Start playback in Pro Tools to check that signal passes from the S/PDIF output
to the S/PDIF input.
2) MIDI Loop Test: On the Mbox 2, connect a MIDI cable from MIDI Out to MIDI In. This will allow
Pro Tools to pass a MIDI signal from the MIDI output port to the MIDI input port. Start playback in
Pro Tools to check that signal passes from the MIDI output to the MIDI input.
3) Output Test: On the Mbox 2, connect ¼-inch jack cables from Mon Out Left / Right to your
speakers. Adjust your output volume accordingly. Start playback in Pro Tools to check that signal
passes from the audio outputs to your speakers.
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Cable connections for Mbox Loop Test:
In a Loop Test, an output signal on your unit is sent to its corresponding input such that the signal
“loops” back to the session. (This is achieved by connecting the outputs to the inputs with a cable). In
order to launch the Pro Tools Troubleshooting session, drag and drop the appropriate session file to
your hard drive and double-click it.
1) S/PDIF Loop Test: On the Mbox, connect a 75 Ohm digital RCA cable from SPDIF out to SPDIF
in. Start playback in Pro Tools to check that signal passes from the S/PDIF output to the S/PDIF
input.
Modification Note: The clock source must be set correctly in Pro Tools for this test to pass. Go
to Setup > Hardware and set the Clock Source to "Internal" before proceeding with the test.
2) Output Test: On the Mbox, connect ¼-inch jack cables from line output 1-2 to your speakers.
Adjust your output volume accordingly. Start playback in Pro Tools to check that signal passes
from the audio outputs to your speakers.
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