Installation, Troubleshooting – Muxlab Digital Audio Converter, LPCM User Manual
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© MuxLab Inc. 2012
Installation
1. Identify the connectors on the Digital Audio Converter as indicated on the product
panels.
2. To install the Digital Audio Converter:
3a. Connect the converter input to the digital audio source with an Optical (TOSLink)
or 75-ohm coaxial (S/PDIF) cable.
3b. Set the input switch to the appropriate signal.
3c. Connect the converter output to the analog audio receiver with a stereo audio
compliant cable.
3. Connect the 5 VDC power supply to the converter first, and then plug the power
supply into an AC power outlet. If power is present, the green power LED of the
Digital Audio Converter will be ON.
Note: Power-on the Digital Audio Converter only after all connections are made.
4. Power-on the audio source and receiver and verify the image quality.
5. The following diagrams shows the final configuration.
Troubleshooting
The following table describes some of the symptoms, probable causes and possible solutions
in regard to the installation of the Digital Audio Converter:
LEDs
Symptom
Power
Lock
Probable
Cause
Possible
Solutions
No Sound
OFF
OFF
No power
• Check power connections
No Sound
ON
OFF
Optical/Coaxial Cable
• Check the Optical/Coaxial cables.
No Sound
ON
ON
Stereo audio cable
• Check the stereo audio cable.
No Sound
ON
ON
Wrong input on receiver
• Check if the selected input on the
receiver can receive analog stereo
audio.
Noise
ON
ON
Audio source outputs a
compressed bitstream
such as Dolby
Digital/DTS
• Configure the source to only
output a uncompressed LPCM
bitstream
Choppy
sound
ON
ON
Weak Connections
• Check cable connection
• Check the Optical/Coaxial Cable
Quality.
If you still cannot diagnose the problem, please call MuxLab Customer Technical Support at
877-689-5228 (toll-free in North America) or (+1) 514-905-0588 (International).