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Thread: Michel Radio replacement for King KX170

  1. #1

    Michel Radio replacement for King KX170

    Greetings All,

    I was wondering if anyone has purchased or is currently using the
    Michel MX170C direct replacement radio for the KX170. My radio volume
    control is starting to get very touchy in that if it is moved very much
    it often cuts out reception. I play with it a bit and everything comes
    back and seems to hold until somebody bumps the knob again. Vibration
    doesn't seem to effect it, just when the knob is physically turned. I
    have been told (Avionics Shop that did the IFR cert) that getting these
    repaired can be quite expensive or even not possible. He also said he
    would avoid the Michel radio as well. Is this correct info. She
    hasn't cut out during flight yet, but I want to start the research
    before it gets worse. (My handy handheld is always at the ready, just
    in case) The current price from Chief for the Michel is about $1495.

    Any thoughts?

    Current radio is KX170 with MAC conversion

    Thanks in advance

    Gary
    Sport 12K

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  2. #2
    kmuller at csc.com
    Guest

    Michel Radio replacement for King KX170

    It sounds like the the volume potentiometers just need some spray contact
    cleaner (radioshack). I had the same issue in the past and what I did was
    pull the radio and carefully remove the front cover (on a bench). Kind of
    tricky because there are gears in the front cover that engage gears in the
    body. If you are reasonably handy it's not that hard. You could even try
    just removing the knob and using the tiny straw that comes with the can of
    contact clearner, try to spray a little bit in. Otherwise find an avionics
    shop that works on these and have them do it. We have a local guy that
    will clean up and yellow tag them for under $200.

    I understand most avionics shops don't recommend the Michel radio maybe
    because there would be no installation work for them - they are slide in
    replacements, but based on what I've read from people who use them..if one
    of my KX170's went tu I would buy one.







    Gary Hanchett
    <vze2872z To: "'BAC Mail'" <bac-mail@beechaeroclub.org>, musketeermail@yahoogroups.com
    @comcast.net> cc:
    Sent by: Subject: [BAC-Mail] Michel Radio replacement for King KX170
    bac-mail-bounces


    02/14/2006 03:36
    PM





    Greetings All,

    I was wondering if anyone has purchased or is currently using the
    Michel MX170C direct replacement radio for the KX170. My radio volume
    control is starting to get very touchy in that if it is moved very much
    it often cuts out reception. I play with it a bit and everything comes
    back and seems to hold until somebody bumps the knob again. Vibration
    doesn't seem to effect it, just when the knob is physically turned. I
    have been told (Avionics Shop that did the IFR cert) that getting these
    repaired can be quite expensive or even not possible. He also said he
    would avoid the Michel radio as well. Is this correct info. She
    hasn't cut out during flight yet, but I want to start the research
    before it gets worse. (My handy handheld is always at the ready, just
    in case) The current price from Chief for the Michel is about $1495.

    Any thoughts?

    Current radio is KX170 with MAC conversion

    Thanks in advance

    Gary
    Sport 12K

    _______________________________________________
    BAC-Mail mailing list
    BAC-Mail@beechaeroclub.org
    http://www.beechaeroclub.org/mailman/listinfo/bac-mail


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  3. #3
    kmuller at csc.com
    Guest

    Michel Radio replacement for King KX170

    Just noticed that you have the MAC conversion... disregard what I said
    about pulling the cover. I would still initially try to get some contact
    cleaner into the volume potentiometer though.

    Kerry Muller
    CSC Financial Services Group
    860 221-1514 office
    860 966-8309 mobile


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  4. #4

    Michel Radio replacement for King KX170

    > Greetings All,
    >
    > I was wondering if anyone has purchased or is currently using the
    > Michel MX170C direct replacement radio for the KX170. My radio volume
    > control is starting to get very touchy in that if it is moved very much
    > it often cuts out reception. I play with it a bit and everything comes
    > back and seems to hold until somebody bumps the knob again.

    *** The part that the volume control knob is connected to is called a
    "potentiometer". They can get dirty. There's an arc of resistance material
    with a little metal "feeler" that swings around it. The feeler touches the
    resistance material - and a different resistance is produced depending
    on where it is.

    Two main bad things can happen

    1. The resistance material gets dirty.
    2. The resistance material can get ground away.

    The fix for "dirty" is simple enough: "TV Tuner Cleaner". Sometimes
    you can get it in around the shaft without taking anything apart. "Ground
    away, is another matter - the potentiometer would have to be replaced.

    BTW, the KX170 series are very good radios. I have a KX170B in my
    Sundowner - and a GNS430. The 170B is more sensitive.


    - Jerry Kaidor( jerry@tr2.com )

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  5. #5

    Michel Radio replacement for King KX170

    Do a BAC search on 'MX170B'. Read the FAQ at the top of the findings list,
    then use the two links to get additional detail. I have had good luck with
    the MX170Bs. And if you do have any problems, their flat-rate repair is
    dirt cheap, plus they give you a free loaner with a refundable credit card
    deposit. On top of that, if they have any available when you call, they
    will sell factory-refurbished units to BAC members at an attractive price.

    I'm surprised to hear you are having problems with a MAC conversion. I have
    forgotten who it is, but there is a company that bought the rights and spare
    parts for the MAC product, and still supports it. You'll have to do some
    Internet surfing to find them.

    If the volume control is the only issue, I would not hesitate to try to lube
    it. Contact cleaner is the traditional product. It will work if it makes
    in into the pot. I recent years I have switched to ACF 50 and Corrosion X.
    It won't hurt electronics, and it "creeps better". Even if you don't get a
    direct hit, it will probably climb into the pot in a week or two. Cheap to
    try anyway.


    -----Original Message-----
    From: bac-mail-bounces@beechaeroclub.org
    [mailto:bac-mail-bounces@beechaeroclub.org] On Behalf Of Gary Hanchett
    Sent: Tuesday, February 14, 2006 3:36 PM
    To: 'BAC Mail'; musketeermail@yahoogroups.com
    Subject: [BAC-Mail] Michel Radio replacement for King KX170

    Greetings All,

    I was wondering if anyone has purchased or is currently using the
    Michel MX170C direct replacement radio for the KX170. My radio volume
    control is starting to get very touchy in that if it is moved very much
    it often cuts out reception. I play with it a bit and everything comes
    back and seems to hold until somebody bumps the knob again. Vibration
    doesn't seem to effect it, just when the knob is physically turned. I
    have been told (Avionics Shop that did the IFR cert) that getting these
    repaired can be quite expensive or even not possible. He also said he
    would avoid the Michel radio as well. Is this correct info. She
    hasn't cut out during flight yet, but I want to start the research
    before it gets worse. (My handy handheld is always at the ready, just
    in case) The current price from Chief for the Michel is about $1495.

    Any thoughts?

    Current radio is KX170 with MAC conversion

    Thanks in advance

    Gary
    Sport 12K


    _______________________________________________
    BAC-Mail mailing list
    BAC-Mail@beechaeroclub.org
    http://www.beechaeroclub.org/mailman/listinfo/bac-mail

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