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Testing Audio Wall Jacks (smart wired home)

Discussion in 'Electronic Repair' started by Riffraff, Mar 14, 2005.

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  1. Riffraff

    Riffraff Guest

    I just bought a "smart wired" home which has wall plates with binding
    posts for the speaker connections in various rooms, a bank of push
    on/push off buttons to control which rooms have the sound turned on
    and a wall plate with 3 pairs of binding posts for input. I also have
    several places where wiring which appears to be speaker wiring is just
    hanging out of the walls. Is there a way I can test which jacks are
    on with which switches using just a multimeter or do I need to drag my
    speaker around the house to test each one?

  2. NSM

    NSM Guest

    If you don't have any speakers or other equipment attached yet, hook them up
    to a bell transformer and use a multimeter.

  3. Art

    Art Guest

    That or even a 9 Volt battery connected will work, as long as there is a
    continous circuit you will read the voltage with your meter.
  4. sofie

    sofie Guest

    Get a small speaker and "drag" it around the house to test the jacks with a
    real signal and a real LOAD.... this certainly can't be any harder than
    wiring up a battery or bell transformer and using your multi-meter.
    Furthermore, a meter could give you a "false positive" because the meter is
    very sensitive, offers very little load, and can give you a just about full
    voltage indication even with a bad connection or bad switch with a fair
    amount of contact resistance that would render speakers just about
    Use a speaker and a real signal.
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