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Kchibo KK-C55 radio - AM tuning steps wrong

Discussion in 'Electronic Repair' started by JazzyJeff, Jun 2, 2007.

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  1. JazzyJeff

    JazzyJeff Guest

    I purchased this radio at Sharper Image some time ago. It's great for
    FM and shortwave reception, but AM (aka MW) reception is kinda' weird
    because of the 9 khz tuning steps which are used outside North
    America. Even if you key in the correct frequency, the radio rounds up/
    down to the next 9 khz step. I looked inside this thing expecting to
    find a DIP switch or something like that for getting the AM tuning
    steps to the normal 10 khz but I didn't see one. Any hints out there?

    Jeff
    Louisville, KY
     
  2. mc

    mc Guest

    It's imaginable that The Sharper Image may have some information about this.
     
  3. [This followup was posted to sci.electronics.repair and a copy was sent
    to the cited author.]

    Do you have the manual? Sometimes there is information on how to change
    the stepping. It may often be a series of button pushes while powering
    up or something like that.

    I found it on Autralian eBay, so it may not be designed for the US:
    http://cgi.ebay.com/Digital-Tuning-AM-FM-SW-Pocket-Shortwave-Radio-C55
    _W0QQitemZ200115295005QQihZ010QQcategoryZ16702QQcmdZViewItem

    A Google search found these:
    http://www.dpmega.com.hk/usermanual/KK-C55UserManual.pdf (seems to imply
    only 9KHz.)
    http://www.tutorials-xe.com/REPAIR/Kchibo-mods/ (appears to be dead.)
    http://www.kchibo.com.cn/kk/c55shuo.htm (if you do this through google,
    the Translate option gives you something as readable as the typical
    Chinese/English manual!)
     
  4. Gary Tait

    Gary Tait Guest

    Check for a row of diodes connected to the key scan matrix, jumpers, or
    bridgeable/bridged solder pads.
     
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