Question about Panasonic SC-AK320 Shelf System

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No Audio on SA-AK320

I have a unit here which operates correctly execpt for the fact that there is no sound coming out of the speaker ports. i dnt have the original speakers for it tho the ones i am using are in fine working order. any ideas on were to start?? my guess is the speaker terminal circuit but what lines, componets etc... hell am hoping someone else has had to fix one of theses faults before save some time of stuffin round with bare minimal tools.

cheers

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  • Panasonic Master
  • 19,396 Answers

Start checking audio aoutput settings.

Posted on Aug 27, 2008

  • Ginko
    Ginko Aug 27, 2008

    If the system has more than one oudio out, check that audio output is not set on a different value.
    More likely you will have to take apart the unit, inspect wiring to audio out RCA connectors, and test them for continuity.
    It is rather unlikely that both channels go at the same time, check the earphones audio jack socket on your stereo , if this is bed this will also mute the system.
    If it is not a connector/wiring problem, check that the stereo is working ang just not giving output( ensure is powering etc.)
    When you have no audio you quickly check the contols, and then pass to amp testing on main pcb, see if you find a faulty component testing onboard with a multimeter.
    To test the amp final it is better to follow directions on service manual.
    You can buy service manual here and follow diagrams that will give you directions on what components to test when you have no audio.
    You will also need a Multimeter.

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