Appendix A – DGX Configuration Software
185
Instruction Manual – Enova DGX 8/16/32/64 Digital Media Switchers
Audio Troubleshooting
The default EDID for input boards only supports 2 channel L-PCM audio. If a sources chooses to ignore this EDID and
send a format that is not in the EDID, the audio may not pass through the Enova DGX 8/16/32/64 at all or it may be
distorted. To present other types of audio formats to the source, a different EDID must be loaded (see the AMX EDID
Library at www.amx.com (search for EDID Library). If after changing the EDID on the input board, the audio is still
distorted or is not present on the destination device, then the device may not be capable of supporting the requested audio
format with the newly loaded EDID setting. In this case, a standard EDID should be used and the sources set up to only
pass the type of audio that the downstream destination devices can handle.
Checking for Support
One way to check if a destination supports a particular type of audio format is to capture the EDID using
DGX Configuration software’s EDID Programmer tab and paste the EDID data into a free-ware EDID reader program
(e.g., www.edidreader.com).
For additional information and a table showing which types of audio the different types of boards support, see page 78.
Note:
The default EDID supports 2 channel L-PCM audio so that signals routed to SC Optical Output Boards
or being inserted onto or extracted from Audio Insert/Extract Board will work without needing to change the
EDID.
Device between HDMI Output Board and Monitor
Sometimes a device (e.g., a video processor) between a DGX HDMI Output Board and the destination monitor is
intentionally installed to alter the image scale. If that is not the case and you have image problems, you need to be aware
that the scaler override function is responding to the EDID from the extra device rather than from the monitor. One
possible solution is to use the DGX Configuration Software to read and save the EDID directly from the monitor and
then apply the override values to the output (directions follow).
To read EDID directly from monitor and apply override values to output:
1.
Remove the device between the output and the monitor.
2.
Connect the output directly to the monitor.
3.
Install and open the DGX Configuration Software (see page 172).
4.
Select the Scaler Override tab.
5.
Under EDID Source, select the Enclosure and select the Output number connected to the desired destination from
the drop-down lists.
6.
Click Refresh EDID.
7.
From the File menu, select Save to File and save the settings to a file.
8.
Replace the device between the output and the monitor.
9.
From the File menu, select Open File and open the previously saved file.
10.
Click Apply to transmit the settings in the file to the output. This action is temporary until the settings are stored on
the connector in Step 12. Otherwise, the settings last only until power is cycled. The display re-syncs with the
output.
11.
Verify that the display is satisfactory before proceeding.
12.
Click Save to store the currently displayed settings to the connector and persist them in memory.
(If the settings have been changed since clicking Apply, the newest settings will be saved.)
Audio Troubleshooting
