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removing bendix king kma 24

 
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joemotis(at)gmail.com
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PostPosted: Tue Aug 31, 2010 7:37 pm    Post subject: removing bendix king kma 24 Reply with quote
 I have a bendix king kma 24 that popped the 3 amp cb labeled spkr.The installation is about 2 years old and was done by a shop.
I would like to remove the KMA 24 to bench test it and would like to know how to do it .
 
Thanks
Joe Motis
Cherokee 180
CH 750 from prints.
 
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nuckolls.bob(at)aeroelect
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PostPosted: Wed Sep 01, 2010 6:57 am    Post subject: removing bendix king kma 24 Reply with quote
At 10:29 PM 8/31/2010, you wrote:
Quote:
I have a bendix king kma 24 that popped the 3 amp cb labeled
spkr.The installation is about 2 years old and was done by a shop.
I would like to remove the KMA 24 to bench test it and would like to
know how to do it .

Look for a recessed screw on the face. It may be a
recessed hex drive that requires an allen-wrench.
This is a long screw that accesses a nutplate in
the back of the tray. Back the screw out and
pull the guts from the tray.

Bob . . .

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tim2542(at)sbcglobal.net
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PostPosted: Wed Sep 01, 2010 7:26 am    Post subject: removing bendix king kma 24 Reply with quote
Yeah I think that one has a tab that rotates 90° as you turn the 3/32 Allen
head screw. After 2~3 turns counterclockwise the unit should slip out of the
tray. Don’t unscrew it all the way or it will fall apart.

Tim Andres


--

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rd2(at)dejazzd.com
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PostPosted: Wed Sep 01, 2010 8:24 am    Post subject: removing bendix king kma 24 Reply with quote
Here is what I found in my files (sorry, it may be a bit too instructive):

KMA 24 removal

Insert a 3/32”, long allen wrench into the center access hole for the locking screw in the front panel.

Gently engage the screw.

Turn the screw counter-clockwise until the unit disengages from the mounting rack.

Caution
Do not overturn. Do not pull on the knobs. Do not pry the face plate.
Do not touch the connector card at the rear of the unit to avoid electrostatic damage.

Pull the sides of the unit gently to slide it out from the mounting rack.

KMA 24 installation into rack

Turn (by hand) and push the latch/locking lobe into the unit so the unit’s bottom is flat and there is no lobe sticking out.

Slide the unit into the rack.

Engage the locking screw so that the latch front lobe touches the rack.

Turn the locking screw clockwise to that the rear lobe engages the rack and starts pulling the unit into the rack. You can help by gently pushing the sides by hand.

Caution – do not over-tighten – you can damage the locking mechanism.

Rumen

---- "Robert L. Nuckolls wrote:
Quote:


At 10:29 PM 8/31/2010, you wrote:
> I have a bendix king kma 24 that popped the 3 amp cb labeled
> spkr.The installation is about 2 years old and was done by a shop.
>I would like to remove the KMA 24 to bench test it and would like to
>know how to do it .

Look for a recessed screw on the face. It may be a
recessed hex drive that requires an allen-wrench.
This is a long screw that accesses a nutplate in
the back of the tray. Back the screw out and
pull the guts from the tray.

Bob . . .







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nuckolls.bob(at)aeroelect
Guest
PostPosted: Wed Sep 01, 2010 10:49 am    Post subject: removing bendix king kma 24 Reply with quote
At 10:24 AM 9/1/2010, you wrote:
Quote:


Yeah I think that one has a tab that rotates 90° as you turn the 3/32 Allen
head screw. After 2~3 turns counterclockwise the unit should slip out of the
tray. Don’t unscrew it all the way or it will fall apart.

Ahhhh . . . but of course. Folks haven't used the
rear-panel nut plate in 40 years. Sometimes your
sense of history can become distracting of the
present! Good put Tim.
Bob . . .

---------------------------------------
( . . . a long habit of not thinking )
( a thing wrong, gives it a superficial )
( appearance of being right . . . )
( )
( -Thomas Paine 1776- )
---------------------------------------

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joemotis(at)gmail.com
Guest
PostPosted: Wed Sep 01, 2010 5:40 pm    Post subject: removing bendix king kma 24 Reply with quote
Thanks to everyone, as usual, the list beats all.
Anyone care  to venture why the speaker 3 amp breaker is popping? Is the amp a common failure point? Looked at the schematic and didnt see any thing remarkable.. Will know more after removing the unit and seeing if it is ships wiring or the KMA 24 that is popping the CB..Everything else works normal as far as I can tell wit the unit...
 
Thanks again to all.
 
Joe Motis  Flying the 180
and building
The CH 750
 
No archive


 
On 9/1/10, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote: [quote]--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)>

At 10:24 AM 9/1/2010, you wrote:
Quote:
--> AeroElectric-List message posted by: "Tim Andres" <tim2542(at)sbcglobal.net (tim2542(at)sbcglobal.net)>

Yeah I think that one has a tab that rotates 90° as you turn the 3/32 Allen
head screw. After 2~3 turns counterclockwise the unit should slip out of the
tray. Don’t unscrew it all the way or it will fall apart.

  Ahhhh . . . but of course. Folks haven't used the
  rear-panel nut plate in 40 years. Sometimes your
  sense of history can become distracting of the
  present!  Good put Tim.


      Bob . . .

       ---------------------------------------
      ( . . .  a long habit of not thinking   )
      ( a thing wrong, gives it a superficial )
      ( appearance of being right . . .       )
      (                                       )
      (                  -Thomas Paine 1776-  )
       --------------------------------------- browse
enExtLink(window,event,this)" href="http://www.matronics.com/Navigator?AeroElectric-List" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List
OpenExtLink(window,event,this)" href="http://forums.matronics.com/" target="_blank">http://forums.matronics.com
Matt Dralle, List Admin.
" href="http://www.matronics.com/contribution" target="_blank">http://w=======================


[b]

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tim2542(at)sbcglobal.net
Guest
PostPosted: Wed Sep 01, 2010 6:11 pm    Post subject: removing bendix king kma 24 Reply with quote
Does it have a separate fuse for the speaker?  In any case I would check the 2 leads to the speaker from the connector at the back of the tray. Should be what, 8 or 16 ohms +/- between the leads?  Also, no continuity to ground. At least with the unit removed that is. Hopefully you just have a wire with an unintentional ground or a bad speaker.
Tim Andres.  
(Not an avionics tech and slept in my own bed last night)
(rnbraud(at)yahoo.com)


From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of joe motis
Sent: Wednesday, September 01, 2010 6:37 PM
To: aeroelectric-list(at)matronics.com
Subject: Re: AeroElectric-List: removing bendix king kma 24


Thanks to everyone, as usual, the list beats all.

Anyone care to venture why the speaker 3 amp breaker is popping? Is the amp a common failure point? Looked at the schematic and didnt see any thing remarkable.. Will know more after removing the unit and seeing if it is ships wiring or the KMA 24 that is popping the CB..Everything else works normal as far as I can tell wit the unit...



Thanks again to all.



Joe Motis Flying the 180

and building

The CH 750



No archive





On 9/1/10, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)>

At 10:24 AM 9/1/2010, you wrote:
--> AeroElectric-List message posted by: "Tim Andres" <tim2542(at)sbcglobal.net (tim2542(at)sbcglobal.net)>

Yeah I think that one has a tab that rotates 90° as you turn the 3/32 Allen
head screw. After 2~3 turns counterclockwise the unit should slip out of the
tray. Don’t unscrew it all the way or it will fall apart.

Ahhhh . . . but of course. Folks haven't used the
rear-panel nut plate in 40 years. Sometimes your
sense of history can become distracting of the
present! Good put Tim.


Bob . . .

---------------------------------------
( . . . a long habit of not thinking )
( a thing wrong, gives it a superficial )
( appearance of being right . . . )
( )
( -Thomas Paine 1776- )
--------------------------------------- browse
enExtLink(window,event,this)" href="http://www.matronics.com/Navigator?AeroElectric-List" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List
OpenExtLink(window,event,this)" href="http://forums.matronics.com/" target="_blank">http://forums.matronics.com
Matt Dralle, List Admin.
" href="http://www.matronics.com/contribution" target="_blank">http://w=======================




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No virus found in this incoming message. Checked by AVG - www.avg.com 271.1.1/3106 - Release Date: 08/31/10 23:34:00 [quote][b]

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joemotis(at)gmail.com
Guest
PostPosted: Wed Sep 01, 2010 6:44 pm    Post subject: removing bendix king kma 24 Reply with quote
Thanks Tim, good starting points.

Will know more on Friday.

Thanks

Joe

No archive
On Wed, Sep 1, 2010 at 7:08 PM, Tim Andres <tim2542(at)sbcglobal.net (tim2542(at)sbcglobal.net)> wrote:
[quote]
Does it have a separate fuse for the speaker?  In any case I would check the 2 leads to the speaker from the connector at the back of the tray. Should be what, 8 or 16 ohms +/- between the leads?  Also, no continuity to ground. At least with the unit removed that is. Hopefully you just have a wire with an unintentional ground or a bad speaker.
Tim Andres.  
(Not an avionics tech and slept in my own bed last night)
(rnbraud(at)yahoo.com) 


From: owner-aeroelectric-list-server(at)matronics.com (owner-aeroelectric-list-server(at)matronics.com) [mailto:owner-aeroelectric-list-server(at)matronics.com (owner-aeroelectric-list-server(at)matronics.com)] On Behalf Of joe motis
Sent: Wednesday, September 01, 2010 6:37 PM
To: aeroelectric-list(at)matronics.com (aeroelectric-list(at)matronics.com)
Subject: Re: AeroElectric-List: removing bendix king kma 24


 
Thanks to everyone, as usual, the list beats all.

Anyone care  to venture why the speaker 3 amp breaker is popping? Is the amp a common failure point? Looked at the schematic and didnt see any thing remarkable.. Will know more after removing the unit and seeing if it is ships wiring or the KMA 24 that is popping the CB..Everything else works normal as far as I can tell wit the unit...

 

Thanks again to all.

 

Joe Motis  Flying the 180

and building

The CH 750

 

No archive



 


On 9/1/10, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)>

At 10:24 AM 9/1/2010, you wrote:
--> AeroElectric-List message posted by: "Tim Andres" <tim2542(at)sbcglobal.net (tim2542(at)sbcglobal.net)>

Yeah I think that one has a tab that rotates 90° as you turn the 3/32 Allen
head screw. After 2~3 turns counterclockwise the unit should slip out of the
tray. Don’t unscrew it all the way or it will fall apart.
  Ahhhh . . . but of course. Folks haven't used the
  rear-panel nut plate in 40 years. Sometimes your
  sense of history can become distracting of the
  present!  Good put Tim.


      Bob . . .

       ---------------------------------------
      ( . . .  a long habit of not thinking   )
      ( a thing wrong, gives it a superficial )
      ( appearance of being right . . .       )
      (                                       )
      (                  -Thomas Paine 1776-  )

       --------------------------------------- browse
enExtLink(window,event,this)" href="http://www.matronics.com/Navigator?AeroElectric-List" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List
OpenExtLink(window,event,this)" href="http://forums.matronics.com/" target="_blank">http://forums.matronics.com
Matt Dralle, List Admin.
" href="http://www.matronics.com/contribution" target="_blank">http://w=======================




 
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ont> Checked by AVG - www.avg.com 271.1.1/3106 - Release Date: 08/31/10 23:34:00
Quote:
 
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[b]

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