Bendix king transponder

Discussion in 'Instruments / Avionics / Electrical System' started by sailsail, May 20, 2009.

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  1. May 20, 2009 #1

    sailsail

    sailsail

    sailsail

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    Hello all!

    I have a kt76A (Bendix King) Transponder that I am wiring up to a Dynon Avionics Blind Encoder Converter that then goes to an Efis-d100. Anyway I am having trouble with the wire placement on the KT76A I have been to all the sites, including http://www.aeroelectric.com/Installation_Data/ and http://www.aeroelectric.com/Installation_Data/KT76A-76C-78A.pdf to get the wiring guide, the problem is the numbering does not match up! Using their convention the bottom of the fitting would be (right to left) A B C D E F G H I J K L and the top would be (right to left again) 1 2 3 4 5 6 7 8 9 10 11 12 (top works out perfectly) but they say it goes to N (top part) what letters do I skip? OR am I even doing this correctly?

    Thanks for you help
     
  2. May 20, 2009 #2

    djschwartz

    djschwartz

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    Letter "I" is typically not used because it is indistinguishable from the number "1". And last letter should be "M" not "N". Try this link. It got me the a PDF of the full Honeywell Bendix/King KT76A/78A installation manual.

    http://bomar.biz/request.php?1714
     
  3. Nov 12, 2009 #3

    Frank5105

    Frank5105

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    Hi Dave
    I am trying to find a KT76A installation manual also and tried to follow the link that you posted above with no success. The web page at Bomar is protected and I dont know how to get in?? If you have the PDF and would email it to me I would greatly appreciate it. frankmoore@sprintmail.com Thanks in advance Dave
     
  4. Jan 18, 2010 #4

    s10sakota

    s10sakota

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    Has anyone figured this out yet? I too am wiring a KT76A to a Dynon D-100 and I am using Dynons Encoder Converter.

    I don't understand the numbering/lettering on the King plug. On page 7-34 of the Dynon manual it tells me to connect the:

    Yellow to A1 (on the King plug)
    Green to A2
    White/Blue to A4
    Blue to B1
    Orange to B2
    etc...

    Which pin is A1? or A2, A4, B1 etc...??

    This may be simple but I'm just not getting it!! I can see what pin A could be. Or I can count and find pin 7. But how are they combining them to get something like A4?

    Thanks
     
  5. Jan 19, 2010 #5

    djschwartz

    djschwartz

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    PM me with your email address and I'll email you the KT76 manual in PDF that I have. There is a drawing in there where King numbers the wires with A1 as they connect to a King encoder, etc and shows how those connect to the actual pins of the KT76 connector. The guys at Dynon must have used the wrong set of identifiers in their diagram.
     
  6. Jan 19, 2010 #6

    s10sakota

    s10sakota

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    I figured it out! okay...actually I didn't figure it out but someone told me how they are labeled. Dynon has it correct-I just didn't realize that B1 for example is really pin E.

    Thanks!
     
  7. Apr 22, 2010 #7

    llacy

    llacy

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    I am wireing a kt76a to the dynon converter and am having the same problem numbering. Can someone give an example of the Dynon numbers to connect to the KT76A.
    Lou Lacy
     
  8. Sep 12, 2010 #8

    chuckb01

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    I realize this is an older thread but I just joined this forum and I need all the same info. I need a installation and operators manual for a Bendix/King KT76A TSO transponder and I am also installing the Dynon alt. encoder converter to be used with my Dynon EFIS D10A. I need wiring info for all this stuff. Thanks for any help.
     
  9. Nov 15, 2010 #9

    Geoffrey Thorpe

    Geoffrey Thorpe

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    http://www.flycorona.com/manuals/king_kt76a_kt78a_install.pdf

    What this manual doesn't tell you is the "missing letters" from the connector scheme - the G and I are missing. If you find a KT 76C manual it has a diagram with all of the pins labled.

    Mollex connector pin part number 08-03-0304 - Available from Mouser.com - their number 538-08-03-0304 - order extras...
     
  10. Jan 23, 2011 #10

    jimhamm

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    Thanks for the info. The link does not work for me-any ideas?
    Jim
     
  11. Jan 24, 2011 #11

    djschwartz

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    See my second post in the thread.
     
  12. Jan 27, 2011 #12

    jimhamm

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    Thanks a lot
    If you could email me the pdf for the kt76a install manual that would be great
    jimhamm@ou.edu
    Jim
     
  13. Jan 28, 2011 #13

    Geoffrey Thorpe

    Geoffrey Thorpe

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  14. May 15, 2011 #14

    mblasdel

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  15. May 15, 2011 #15

    Marc Bourget

    Marc Bourget

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    Anybody know of a link to a KT-79 Installation manual?

    I found the pinout but the manual would be preferred.
     
  16. Jun 14, 2011 #16

    Iskra

    Iskra

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    Anybody have KT76A maintenance manual?

    Or link to download it?
     
  17. Oct 29, 2013 #17

    bsair

    bsair

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    FYI
    Pin-out letters G and I are not used in this plug because "G" may be mistaken for a "6" and "I" for a "1".

    The lettered pin-outs on this 24 pin plug are: A B C D E F H J K L M N and the numbers are 1 through 12
    Hope this helped.
    C
     

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