Shaw Motorola DCX3200 audio issue - HELP!

[stevie b]

Hello,

I'm in a tight situation on a job -- I'm hoping someone here might be able to help me out.

I have a small installation at a restaurant where the client has 2 Motorola DCX3200 set top boxes and Shaw service. They wanted to get sound to both the background speakers and the local plasma screens.

I am using the analog audio outputs of the DCX to the background sound system with no issues. However, I am trying to use the coax audio output to the audio video switcher (Xantech). From there, the Xantech sends the audio video over Cat5 to a wall plate where i have a digital to audio converter in-line to the plasma screen -- the video works great but no audio.

I can't seem to get anything out of the DCX coax outputs? I'm wondering if it is an issue with using both the digital and audio outputs or maybe a copy-protect conflict with the digital to audio converter...

Please any guidance or experience would be greatly appriciated.

[downbeat]

I just went over the user guide from Motorola. Is it possible you've chosen a digital audio format that your switcher won't recognize? Here's the section that caught my attention, waaaay back on Page 37.

The Audio Output setting allows you to specify the digital audio format delivered over the HDMI connection by the DCX3200. Options include Auto, L-PCM, and Pass Through. By default, the Auto option is selected. The options are used as follows:
• Auto designates that the DCX3200 will provide the digital audio format specified by the connected device (TV or home theater receiver) when that device was first connected to the DCX3200.
• L-PCM designates that the DCX3200 will provide all audio in the Linear Pulse Code Modulation digital audio format. The L- PCM format is widely supported by most HDMI televisions and home theater receivers.
• Pass Through designates that the DCX3200 will provide the same digital audio format on the HDMI output as is provided with the program being viewed at that time. For example, if the program has a Dolby Digital soundtrack, the DCX3200 will pass the Dolby Digital audio to the HDMI output. This option is most useful when connecting the DCX3200 to a home theater receiver that has HDMI switching capability.
Note : Adjusting these settings could result in a loss of audio. Only a professional installer or someone with a good working knowledge of the digital audio formats supported by the TV and/or home theater receiver should change this setting.

[Anonimz]

Not sure if I fully understand, but it sounds like you are trying to feed audio into the plasma TV via the digital-coax output of the DCX? I'm not sure if I've seen a TV with a digital-coax audio input before. Optical output, yes, but not digital input, just analog.