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Standard Horizon Remote Mic

Discussion in 'Ask All Sailors' started by lehighsail, Jun 11, 2018. Add this thread to a FAQ

  1. lehighsail

    lehighsail

    Joined Feb 21, 2008
    251 posts, 22 likes
    Hunter 33
    US Metedeconk River
    My VHF remote mic stopped working and traced the problem down the the connector at the helm that the mic plugs into. Seems that the pin in the 6 o'clock position is no longer there. May be the ground pin?

    Can these pins be repaired or can I get a new end connector and splice it onto the wire coming from the radio below? I would really like to avoid running a new cable up to the helm.

    Any help would be appreciated. Thanks.
     


    njlarry likes this.
  2. Don S/V ILLusion

    Don S/V ILLusion

    Joined Sep 25, 2008
    4,991 posts, 241 likes
    Alden 50
    US Sarasota, Florida
    You can buy a replacement connector but I wouldn't recommend it unless you are adept at soldering.

    Among the largest selection online is Mouser.com. Search under Audio connectors and under the tab DIN connectors you will find 370 different ones with pictures and pin-outs.
     


  3. Jake N Eggs

    Jake N Eggs

    Joined Jun 2, 2011
    270 posts, 16 likes
    Hunter H33
    Ca Port Credit Harbour, ON.
    The missing pin is most likely in the female portion of the connector.
     


  4. Whatfiero1

    Whatfiero1

    Joined Mar 29, 2017
    184 posts, 31 likes
    Hunter 30t
    US littlecreek
    For a temp fix I just shove a sewing needle in connection
     


    justsomeguy likes this.
  5. LeslieTroyer

    LeslieTroyer

    Joined May 20, 2016
    1,518 posts, 473 likes
    Catalina 36 MK1
    US Everett, WA
    Mine bit the dust earlier this year, not being sure if it was a fault in the RAM or wiring or radio I tested it on @jssailem boat. It didn’t Turn his radio on as it should. So only after order a new Mic John tells me he forgot to plug the radio into power. The good news is the new RAM fixed the problem

    Les
     


  6. jssailem

    jssailem

    Joined Oct 22, 2014
    5,215 posts, 1,660 likes
    CAL 35 Cruiser
    US Salem, Moored Port Everett WA
    And once @LeslieTroyer had identified the power deficiency in my boats radio, I plugged it in and it worked. This was a win win.
     


    Meriachee and LeslieTroyer like this.
  7. Chris Patterson

    Chris Patterson

    Joined Oct 17, 2011
    2,767 posts, 62 likes
    Ericson 29
    US Southport..
    Funny, we just had this happened. I was thinking about buying the whole new plug and cable and cutting the cable a few inches back from the plug and can do my connections there to keep from fooling with the plug.
     


  8. jssailem

    jssailem

    Joined Oct 22, 2014
    5,215 posts, 1,660 likes
    CAL 35 Cruiser
    US Salem, Moored Port Everett WA
    It is possible. The wires are tiny.
     


  9. lehighsail

    lehighsail

    Joined Feb 21, 2008
    251 posts, 22 likes
    Hunter 33
    US Metedeconk River
    Update: first, smack me in the back of my head.......it's an iCom HM157 remote mic. Not that it really matters.
    Yesterday, I cut the wires and soldered the very tiny wires including the Black wire that was two wires internally. Plugged in the mike and turned on the radio and the mic worked! Almost. All the functions work and it broadcasts. The only thing not working is the speaker in the mic. I checked all connections and all seemed fine. I saw a post somewhere that maybe the speaker wire inside the mike is loose. Will check that today.
     


  10. mcrow33

    mcrow33

    Joined Mar 29, 2011
    150 posts, 15 likes
    Beneteau 361
    US Charlotte,Vt
    As someone who has toasted two SH RAM. Be sure that the radio is turned off before connecting or disconnecting the RAM.
     


    LeslieTroyer likes this.
  11. jssailem

    jssailem

    Joined Oct 22, 2014
    5,215 posts, 1,660 likes
    CAL 35 Cruiser
    US Salem, Moored Port Everett WA
    There is a cautionary tag attached to the cable. I thinks sometimes folks forget it that hurry to wrap up the sail and begin the party. And SH gets to sell them a replacement.
     


    LeslieTroyer likes this.
  12. jviss

    jviss

    Joined Feb 5, 2004
    2,344 posts, 186 likes
    Tartan 3800
    US Westport, MA
    I have had that very same problem with two IC-M502 radios and the HM157 remote mic. There is no short circuit protection in the audio output circuit that is inside the M502 that drives the speaker in the remote mic. A short, which in my case was caused by salt water, will blow that circuit. The only recourse is to send the base unit to Icom for repair.

    Not saying that's your exact problem, but it was certainly mine, with the same symptoms.
     


  13. Meriachee

    Meriachee

    Joined Aug 1, 2011
    2,457 posts, 625 likes
    Catalina 270
    CA Wabamun - on the orange ball
    Now what’s going to be the excuse for not answering the hail @jssailem ?
     


  14. jssailem

    jssailem

    Joined Oct 22, 2014
    5,215 posts, 1,660 likes
    CAL 35 Cruiser
    US Salem, Moored Port Everett WA
    I await your hail.
     


    Meriachee likes this.
  15. lehighsail

    lehighsail

    Joined Feb 21, 2008
    251 posts, 22 likes
    Hunter 33
    US Metedeconk River
    JVISS, I will contact iCom today. Thanks.
     


  16. jviss

    jviss

    Joined Feb 5, 2004
    2,344 posts, 186 likes
    Tartan 3800
    US Westport, MA
    Let me know what they say! I understand the IC-M502 is no longer supported, not sure about repairs. I have one (spare) that has that problem, and two installed on my new-to-me boat.
     


  17. lehighsail

    lehighsail

    Joined Feb 21, 2008
    251 posts, 22 likes
    Hunter 33
    US Metedeconk River
    To save me some time, do you know what the new model with the same features is?
     


  18. jviss

    jviss

    Joined Feb 5, 2004
    2,344 posts, 186 likes
    Tartan 3800
    US Westport, MA
    I don't. There is an M502a - I had one of those, and one of the non-"a" versions, on the old boat. I'm not sure which versions are on the new boat.

    Perhaps like you, I'd like to know of a newer model that fits in the same hole!
     


  19. windward54

    windward54

    Joined Mar 12, 2008
    548 posts, 7 likes
    Jeanneau 49 DS
    US San Pedro, CA
    The ICOM M502 (both versions) are no longer supported by ICOM. I just checked as the audio circuit to the remote mic just failed on my radio. Guess it is time for an update.

    The M506 is slightly wider and longer than the M502. Not an issue. The problem is the remote takes a different cable. So I’ll be installing the radio , less then an hour, and then spending most of the day pulling a new remote cord for the mic. Why can’t manufacturers plan upgrades better? OK, it’s a rhetorical question.
     


  20. jviss

    jviss

    Joined Feb 5, 2004
    2,344 posts, 186 likes
    Tartan 3800
    US Westport, MA
    If we could get the part location (reference designator) and part number for the blown audio component, it would probably be a cinch to replace it. Think they'll tell us?

    I had the schematics once. Not sure I can find them again.
     



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