Roland VC-1-DL Bi-Directional SDI/HDMI Video Converter with Delay and Frame Sync - Manual (Page 28)

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Troubleshooting
Nothing is output from the SDI OUT connector.
Is an HDCP-applied signal being input via the HDMI IN connector? The VC-1-DL
supports HDCP, and when an HDCP-applied signal is input, output via the SDI
OUT connector stops. When this happens, output is made only via the HDMI OUT
connector.
No audio is output from the HDMI IN connector.
Does the connected HDMI source device support linear PCM output? The VC-1-DL
supports linear PCM at only 48 kHz. Accordingly, if a different format is input, audio
might not be output, or the number of channels might be limited.
After a period of no operation, the unit turned itself off.
Is the AUTO OFF feature activated? By default, the AUTO OFF feature is set to ON.
When the unit is to be left powered up for a long time, set mode switch 10 to [OFF]
to turn off the AUTO OFF feature.
Input/output of AES audio is not possible.
Is the connection to the source device or the output device made via the L channel?
When the mode switches have been set to enable AES input/output, only the
R-channel jacks are active, and the L-channel ports are disabled.
Settings cannot be changed using the mode switches.
Is mode switch 10 at the [ON] position? When making setting changes, be sure to
set switch 10 to [OFF].
The volume level of equipment connected to the AUDIO IN jacks is low.
Are you using connection cables that contain resistors? Use connector cables that
do not contain resistors.