780 Handheld Test Instrument Page 57
The results of the test are shown on the screen above.
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 780 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 780.
Source device connected to the 780 through a repeater device.
780 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 780 is emulating a sink to test an upstream source. In the third configuration, the 780 is emulating both an
HDMI source and sink. These test configurations are shown below.
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