Quantum Data 780B, Руководство пользователя

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780B Video Generator/Analyzer
– User Guide
Page 96
December 1, 2014 Revision A7
6.3.4 Procedures for disabling HDCP on the 780B Rx port
You can disable the HDCP registers of the 780B
’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 780B from your PC refer to the section:
Command Interface . Use
the commands in the following procedures enable and disable HDCP on the HDMI Rx port.
1. To disable HDCP on the HDMI Rx port enter the following command:
CPAG 0
ALLU
2. To re-enable HDCP on the HDMI Rx port enter the following command:
CPAG 1
ALLU
6.4 Testing Audio of an HDMI Source 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 780B 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 780B.

Source device connected to the 780B through a repeater device.

780B 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 780B is emulating a sink to test an upstream source. In the third configuration, the 780B is
emulating both an HDMI source and sink. These test configurations are shown below.