Quantum Data 780C, User Manual

Page: 112 / 240

780C Multi-Interface Interoperability Tester
– User Guide
Page 111
September 29, 2014 Revision A1
You can disable the HDCP registers of the 780C
’s Rx port to test how your source device responds to HDCP
being disabled. Currently you can only disable the HDCP port through the command line. For instructions on
establishing a command line session with the 780C from your PC refer to the section:
Command Interface . Use
the commands in the following procedures enable and disable HDCP on the HDMI or HDBaseT In port.
1. To disable HDCP on the HDMI In port enter the following command:
CPAG 0
ALLU
2. To re-enable HDCP on the HDMI In port enter the following command:
CPAG 1
ALLU
6.4 Testing Audio of an HDMI Source Device or at the Output of an HDBaseT
Distribution Device
This subsection describes how to test the audio from an HDMI source device.
6.4.1 Configurations for Testing Audio on an HDMI Source Device
With the 780C you can run a test on the HDMI audio from a source device. This test shows you the decoded
audio IEC header information, the audio infoframes and the audio sample packet header information
transmitted from the connected source device which could be a DVD, set top box or the output of an A/V
Receiver. You can run this test in three configurations:

Source device connected directly to the 780C.

Source device connected to the 780C through a repeater device such as an A/V receiver.

780C HDMI OUT and HDMI IN ports acting as both as a known good source and a known good sink
connect to both the input and output of the repeater device.
In all cases the 780C is emulating a sink to test an upstream source. In the third configuration, the 780C is
emulating both an HDMI source and sink. These test configurations are shown below.