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kenwood reciever

Discussion in 'Troubleshooting and Repair' started by bmeister, Mar 9, 2012.

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  1. bmeister


    Mar 9, 2012
    Gentlemen and or ladies,

    I have a Kenwood AM/FM receiver. I am not currently at home and do not remember the model number. It says it is a high speed DC receiver but I have no idea what that is other than to make it sound special. According to the internet it is not worth much but I have had it for a long time (since it was new) and I really do like it. It has been about 50 years since I have worked on this stuff. I could do better if I had a schematic but most people that I have talked to do not know what a Sams Photofact is. The problem that I am having is one or both channels not working. I have to crank the volume way up until it finally comes on and that is enough to blast you out of the room. It is getting worse also. Can anyone tell me what is going on and where the problem is. Thanks for your help.

    Last edited: Mar 11, 2012
  2. davenn

    davenn Moderator

    Sep 5, 2009
    hi there Bruce
    welcome to the forums :)

    well I have no idea what a Kenwood high speed DC receiver is Im assuming its some sort of tuner amp ??
    It mite help if you gave the actual model number and maybe links to circuit diagrams
    so that we can all got on the "same page" and maybe try and help you :)

  3. Neotron


    Mar 9, 2012
    A "high speed DC receiver" does not exist.

  4. twister


    Feb 12, 2012
    Not sure what you have, a short wave receiver that is run on DC? Sometimes the volume potentiometer goes bad and acts like that. You can easily test it with an ohm meter. Just put one lead on the ground or the top and the other on the wiper and turn it and see if the ohms vary smoothly.
  5. shrtrnd


    Jan 15, 2010
    I have a couple 1970's era Kenwood receiver/amplifiers.
    Your problem is the push-button switches on the panel. The push-buttons activate
    slide switches on the printed circuit board. The slide switches wear, and don't make
    good contact.
    You will find if you push buttons, and then push the function (AM/FM/AUX switches),
    that the output will return. When you dial up the volume, you're running enough
    current through the switch to allow the proper operation of the output, and when you
    lower the volume, sooner or later, you'll lose the output again because of the lower
    current through the switch.
    The ONLY way you're going to fix the problem is to replace the worn switch or switches.
    Kenwood doesn't stock the old switches for these receiver/amps, but if you get inside
    and measure the pin distances for the switch or switches on the board, you can look
    up an equivalent switch, and replace it. Just get your shaft distance right to the front
    of the receiver/amp, and you can put the push-button cap from the old switch on the
    new switch. The face of the receiver will look right, and your receiver/amp will be
    as good as new.
    (Play with the pushbuttons/lever switches on the front panel when the output goes
    out on one channel, and you'll see what I mean).
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