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CAV 11 Audio Vario/no Audio ideas? (Cambridge)



 
 
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  #1  
Old October 12th 08, 03:36 PM posted to rec.aviation.soaring
Gregg Leslie[_2_]
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Posts: 36
Default CAV 11 Audio Vario/no Audio ideas? (Cambridge)

Guys,

I have a Cambridge CAV 11 audio vario, the vario works great but I have no
audio. When I open the case there is a speaker connected to the pc board
via a small harness. above that connection there is a 3 prong jumper. Does
this have anything to do with shutting the audio off?

I could use a manual, Cambridge has one online but does not address the
jumper nor does it have a schematic.

GL


  #2  
Old October 13th 08, 05:24 PM posted to rec.aviation.soaring
[email protected]
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Posts: 2,124
Default CAV 11 Audio Vario/no Audio ideas? (Cambridge)

On Oct 12, 10:36*am, Gregg Leslie wrote:
Guys,

I have a Cambridge CAV 11 audio vario, the vario works great but I have no
audio. When I open the case there is a speaker connected to the pc board
via a small harness. above that connection there is a 3 prong jumper. Does
this have anything to do with shutting the audio off?

I could use a manual, Cambridge has one online but does not address the
jumper *nor does it have a schematic.

GL


I'd bet the speaker is bad. Have seen this before.
UH
  #3  
Old October 13th 08, 06:38 PM posted to rec.aviation.soaring
[email protected]
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Posts: 154
Default CAV 11 Audio Vario/no Audio ideas? (Cambridge)

On Oct 13, 11:24*am, wrote:
On Oct 12, 10:36*am, Gregg Leslie wrote:

Guys,


I have a Cambridge CAV 11 audio vario, the vario works great but I have no
audio. When I open the case there is a speaker connected to the pc board
via a small harness. above that connection there is a 3 prong jumper. Does
this have anything to do with shutting the audio off?


I could use a manual, Cambridge has one online but does not address the
jumper *nor does it have a schematic.


GL


I'd bet the speaker is bad. Have seen this before.
UH


If so, you can use an ohm meter to see if the coil is "open".
Disconnect it first.
 




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