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ACX1T
Chapter 6: Troubleshooting
6.5 Digital Audio
CPU Unit, rear view
CON Unit, rear view
Figure 6-3. Digital audio option.
Table 6-5. Digital audio troubleshooting.
Diagnosis
Possible Reason
Measure
CPU unit: LED 1 red
No audio connection to CPU/audio source
• Connect digital audio source.
• Check connection of audio cable.
No signal
• Switch digital audio source on.
• Activate digital output at CPU/audio source.
CON unit: LED 1 red
No audio connection to audio sink (for example, speakers)
• Connect digital audio sink.
• Check connection of audio cable.
No signal
• Check signal at CPU unit.
No signal/LEDs 1 OK
Digital silence at active audio source
• Check LEDs at CPU unit.
• Check audio format.
• Change audio input.
