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Noisy Sony Receiver STR-D711

Discussion in 'Electronic Repair' started by Charlie Bress, Nov 2, 2005.

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  1. This receiver is used in my entertainment system.
    Recently the TV audio has been crackling.
    This seems to affect the left audio primarily, but I wouldn't swear to it.
    It was plugged into the Video2 channel
    I moved the TV audio to Video1 and all seems OK.
    The other boxes plugged in are a CD player and a Cassette player.
    These as well as the receiver itself are OK. The VCR/DVD player gets to the
    receiver by way of the TV.

    What is in the input circuits of this receiver?
    Are they all discrete components?
    This receiver is about a 1993 (looking at the publish date on the manual).
    I have no scope or audio generator to troubleshoot with. It would be replace
    something and see if that fixed it. Crude but doable.

    What is the best course of action?
    I could take it to the local repair shop. The guy is good, but it will be at
    least a week before I get it back. If I can pull it off myself it might just
    take an afternoon.

  2. Skype_man

    Skype_man Guest

    Good old receiver. Just try a "clean" input like a
    cd player into the "bad input" which is Video 2.
    Just may need to solder the Video 2 input connectors.
  3. jakdedert

    jakdedert Guest

    It's possible that you 'fixed' it when you pulled the cable and
    replugged it. If you haven't done so already, try it back in the vid 1
    input. Possible some corrosion had built up on the connector. If not,
    the above is probable.

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