Draco vario
DisplayPort
1.2
Troubleshooting
97
11.3.2 Add-on Module, Analog Audio
Diagnosis
Possible reason
Measure
CON Unit:
No signal at audio
output
No audio connection to the
audio source available.
Connect an analog audio source.
Check the connection of the audio cable
between the CPU Unit and the audio source.
No signal available.
Switch the analog audio source on.
Activate the analog output at the audio
source.
No audio connection to the
audio sink (e.g., speakers)
available.
Connect an analog audio sink and switch it
on.
Check the connection of the audio cable
between the CON Unit and the audio sink.
CPU Unit:
No signal at audio
output (microphone)
No audio connection to the
audio source (microphone)
available.
Connect the analog audio source
(microphone).
Check the connection of the audio cable
between the CON Unit and the analog audio
source (microphone).
No signal available.
Switch the analog audio source on.
Activate the analog output at the audio
source.
No audio connection to the
audio sink (e.g., computer)
available.
Check the connection of the audio cable
between the CPU Unit and the audio sink.
Check the audio configuration.
11.3.3 Add-on Module, Digital Audio
CPU side (CPU module)
Console side (CON module)
Fig. 1
Interface side add-on module digital audio - Failure indication
Diagnosis
Possible reason
Measure
CPU Unit:
LED
1
lights up
red
No audio connection to the
audio source available.
Connect a digital audio source.
Check the connection of the audio cable
between the CPU Unit and the audio source.
No signal available.
Switch the digital audio source on.
Activate the digital output at CPU/audio
source.
CON Unit:
LED
1
lights up red
No audio connection to the
audio sink (e.g., speakers)
available.
Connect the digital audio sink.
Check the connection of the audio cable
between the CPU Unit and the audio source.
No signal available.
Check signal at CPU Unit.
No signal:
CON Unit:
LED
1
lights up green
CPU Unit
:
LED
1
is flashing
Digital noise at the active
audio source.
Check the audio format (see LED color at the
CPU Unit, see chapter 4.18.1, page 58).
Check the mute setting.
Change the audio input.
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