Question about Technics SA-AX530 Receiver

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Conrad johnson converter connection

My D/A 1 works great with the CD player, but I tried to run an optical cable from my new Samsung HDTV to the converter, but get only static.
The LED shows that I have digital input to the Aux port.
It isn't so much static as it is dot-dash sound.

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  • 2 more comments 
  • Roger Johnson Dec 31, 2007

    This is a new cable from Radio Shack, the connections seem tight on both ends.
    I do have the LED on the converter lit that shows it is getting a signal.
    I can see light from the cable when it one end is disconnected.

  • Roger Johnson Dec 31, 2007

    Did I mention that this is an optical cable and ports?
    I am not sure that your solution is appropriate for this mode.

  • Roger Johnson Dec 31, 2007

    This may be the start of the solution:
    Only in the reverse,
    the connection works when I am NOT receiving a digital signal, does not work when I switch to a HDTV signal.
    I am using an indoor antenna.

  • Roger Johnson Jan 01, 2008

    The television is a Samsung T3242H,
    the D/A converter is a Conrad Johnson DA1.

    The source is over the air broadcasting.

    Sound comes through the stereo when I have a non-hdtv signal tuned;
    it is when a hdtv signal is tuned that this hard dot and dash sound comes through.
    Here is something that I just realized:
    the hdtv stations are sending Dolby sound, the non-hdtv send the analog non-Dolby.
    Is this relevant?
    Is there a way of telling the tv to either turn on or off the Dolby translation?
    I uses the optical cable for tv, a coaxial for cd to converter.
    Those are all the facts that I can come up with--and hope that you have some flash of insight.



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Did you make sure that your TV is outputting audio via the optical port (optical out enabled)? Also, if your TV is not receiving a digital input source, it won't output a digital signal via the optical cable.

Posted on Dec 31, 2007

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  • Damen Wong
    Damen Wong Dec 31, 2007

    Could you please tell me what your the exact model number of you Samsung TV? What input source are you using when the optical output works?

  • Damen Wong
    Damen Wong Jan 01, 2008

    Did you try turning off the TruSurround XT?

  • Damen Wong
    Damen Wong Jan 01, 2008

    What you suggested about the Dolby 5.1 could be the source of the problem. I don't see any way to turn off Dolby 5.1 from the TV. The TV is programmed to output 5.1 if it's receiving 5.1. You convertor probably doesn't know what to do with the 5.1 signal. The convertor is too old perhaps?


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Hi sherring, have you cheked that your cable isnt damaged? the connecton at either end might be loose.

Posted on Dec 31, 2007

  • Santiago Vallejo
    Santiago Vallejo Dec 31, 2007

    If you hear static sound and our cable is ok. Then you have to open it up, locate the potentiometer and spray some electrical contact cleaner. You can get that in an electric supply store. Try to clean any visible dirt,
    If the problem continues then you have to repace the pot.

    If your not sure of opening it up and spraying the potentiometer, i suggest you to take it to a electric store, this problem is not that easy to solve sorry..

  • Santiago Vallejo
    Santiago Vallejo Dec 31, 2007

    ehm, well im running out of ideas then. I dont understand what your specif problem is.
    You mean you hear static sound insted of the sound?
    If you turn the mute on, will the static sound stop?



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