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Car radio installation problem

Discussion in 'Electronic Repair' started by Dick Smyth, Jul 15, 2006.

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  1. Dick Smyth

    Dick Smyth Guest

    I am trying to put a new Koss MS2015 radio/cd player in my 1992 Miata.
    I have connected the power leads to a 12 volt pair on the car but the radio
    does not power on.
    The ground is negative. The wires from the car are hot (checked with a
    meter) and the connections are firm.
    I have pushed the reset button, all to no avail. So far as I know the radio
    is not defective. I brought the first one back thinking that maybe it was.
    The only thing I can think of is the lack of a ground wire to the frame of
    the car. But doesn't the black wire provide a proper ground?
    I have not at this point attached the speakers or the antenna. But the unit
    still should power up without them, no?
    Appreciate your advice
     
  2. Jerry G.

    Jerry G. Guest

    The case of the radio must be grounded to the chassis ground of the car.
    The speaker wires must not be grounded in any way.

    --

    Jerry G.


    I am trying to put a new Koss MS2015 radio/cd player in my 1992 Miata.
    I have connected the power leads to a 12 volt pair on the car but the
    radio
    does not power on.
    The ground is negative. The wires from the car are hot (checked with a
    meter) and the connections are firm.
    I have pushed the reset button, all to no avail. So far as I know the
    radio
    is not defective. I brought the first one back thinking that maybe it
    was.
    The only thing I can think of is the lack of a ground wire to the frame
    of
    the car. But doesn't the black wire provide a proper ground?
    I have not at this point attached the speakers or the antenna. But the
    unit
    still should power up without them, no?
    Appreciate your advice
     
  3. Have you checked the manual on this unit? It's available here:

    http://www.kosselectronics.ca/index/screen/koss_downloads.html
     
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