Matronics Email Lists Forum Index Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
 
 Get Email Distribution Too!Get Email Distribution Too!    FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Transponder King KX76a

 
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> Avionics-List
View previous topic :: View next topic  
Author Message
reichec



Joined: 23 Apr 2007
Posts: 26

PostPosted: Sun Dec 02, 2007 7:12 am    Post subject: Transponder King KX76a Reply with quote

If you hook it up to your power source (bus, with a 1A fuse holder just to
protect it) make sure that the kt76 is wired for 14v lighting. I know that
these units run off 14V and work through a dropping resistor when I install
them in 28v airplanes, but I beleive that the lighting circuit can run on
either depending where you put grounds. Or you could configure it for 28V
lights and it would them be half bright all the time. Im not sure. Maybe
some fiddling with a multi-pole switch that could be configured to brighten
or dim the backlighting inside the unit. Having it light up when you turn
on the unit cant really be done(if you mean the OFF/STBY/ON/ALT
switch)...... well just have the lighting power come after the avionics
master or whatever.... just some ideas.

Charles
---


- The Matronics Avionics-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Avionics-List
Back to top
View user's profile Send private message
Mike Hoffman



Joined: 11 Mar 2006
Posts: 54

PostPosted: Mon Dec 03, 2007 1:30 am    Post subject: Re: Transponder King KT76a Reply with quote

Thanks Charles,

Not quite what I'm looking for. I don't care if it doesn't have a dimmer feature. I just want it to light up when I turn it on.

On my Icom A200 I was able to connect the panel light dimmer wire to a powered terminal (out of the back of the terminal plug and looped back in to a + terminal) and get the lights to turn on when I powered the radio up. I'm quite sure I can do the same with my transponder but need assistance with the pin out.

Thank you for your reply.

Mike Hoffman


- The Matronics Avionics-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Avionics-List


Last edited by Mike Hoffman on Tue Dec 04, 2007 5:07 pm; edited 1 time in total
Back to top
View user's profile Send private message Send e-mail
idewhirst(at)indtechnolog
Guest





PostPosted: Mon Dec 03, 2007 8:41 am    Post subject: Transponder King KX76a Reply with quote

You can find a pinout diagram here

http://www.aeroelectric.com/Installation_Data/KT76A-76C-78A.pdf

Not sure that will help however, as there is no switched output on a KT
series transponder, the encoder is always on.

-- Ian

--


- The Matronics Avionics-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Avionics-List
Back to top
gyoung



Joined: 09 Jan 2006
Posts: 211
Location: Republic of Texas

PostPosted: Mon Dec 03, 2007 11:14 am    Post subject: Transponder King KX76a Reply with quote

He didn't say anything about the encoder, just the lighting. From the
pinout, for 14 volts put power to pin 2 and ground to pin 3 to get full
bright. Use a dimmer on the power if desired.

Regards,
Greg Young


[quote] --


- The Matronics Avionics-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Avionics-List
Back to top
View user's profile Send private message Send e-mail
idewhirst(at)indtechnolog
Guest





PostPosted: Mon Dec 03, 2007 1:00 pm    Post subject: Transponder King KX76a Reply with quote

I believe the gentleman wants the transponder to light up when he turns on
the transponder, not the master switch. The reference to the encoder is
that some transponders switch the encoder power, unfortunately not the King.
Earlier Mike Hoffman wrote:

"On my Icom A200 I was able to connect the panel light dimmer wire to a
powered terminal (out of the back of the terminal plug and looped back in to
a + terminal) and get the lights to turn on when I powered the radio up. I'm
quite sure I can do the same with my transponder but need assistance with
the pin out."

Cheers -- Ian

--


- The Matronics Avionics-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Avionics-List
Back to top
Float Flyr



Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

PostPosted: Mon Dec 03, 2007 3:11 pm    Post subject: Transponder King KX76a Reply with quote

How about putting power in to pin 2 and looping pin 3 to pin 12?? You may
have to put a resistor across 2-3 to allow enough current to operate the
XPNDR.

Just thinking...

You could also wire the lights in parallel with the transponder (or form pin
12) and just pull the breaker to turn off the transponder. That way when
you turn on the breaker, the lights will also come on.

Noel

[quote] --


- The Matronics Avionics-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Avionics-List

_________________
Noel Loveys
Kitfox III-A
Aerocet 1100 Floats
Back to top
View user's profile Send private message Send e-mail
Mike Hoffman



Joined: 11 Mar 2006
Posts: 54

PostPosted: Tue Dec 04, 2007 4:14 am    Post subject: Re: Transponder King KX76a Reply with quote

Thanks to every one that replied.

You are correct in what I am looking to do. I would like the panel lights for the transponder to turn on when I turn on the switch that turns on the transponder. I guess I was looking for a switched output that may not exist (that would be to easy wouldn't it).

I will get busy with my meter and a probe and see if I any of the suggestions Will work.

Thank you
Mike Hoffman


- The Matronics Avionics-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Avionics-List
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> Avionics-List All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group