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1. 10:10 PM - Re: KA-134 issues (James Redmon)
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| Subject: | Re: KA-134 issues |
--> Avionics-List message posted by: "James Redmon" <james@berkut13.com>
I have a major correction to make on my post. It is NOT the King audio
panel, it is the Microair 760 radio - at least caused by it.
Several folks were on to something about the second com. I thought for sure
I had
tested the problem with the radio off...but I guess I had not. I
disconnected com2 and the problem went away. I re-connected it (with the
power off) and the problem was still gone. I turned on Com2....poof, I had
com 2 audio, but reduced aux audio. Com1 was unaffected by all modes, with
or without aux audio. The issues is isolated with com2's audio.
Any ideas how I can test this out and equalize the audio? I seem to
remember folks having problems with the Microair radio mixing with other
audio sources.
Thanks for the help!
James Redmon
Berkut #013 N97TX
http://www.berkut13.com
> -------- Original Message --------
> Subject: Avionics-List: KA-134 issues
> Date: Tue, 17 Aug 2004 11:02:51 -0500
> From: James Redmon <james@berkut13.com>
> Reply-To: avionics-list@matronics.com
> To: <avionics-list@matronics.com>
>
>
> --> Avionics-List message posted by: "James Redmon" <james@berkut13.com>
>
> Hi all,
>
> I've found a small anomaly in my audio system - specifically the KA-135
> audio panel...I think. I have two com radios, the KA-135 has the two
> mic/radio select buttons and several inputs for aux audio (NAV1, NAV2,
> Marker, DME, etc.) - standard stuff, right.
>
> I have the audio from the engine computer (audio alerts) piped into the
> KA-135 on one of the 5 aux audio lines. With com1 mic switch pushed, all
is
> fine...everything loud and clear. Problem: when com2 switch is activated,
I
> can hear com2 audio just fine but ALL other audio inputs seem to have been
> muted considerably. I can still hear them but they ALL are significantly
> lower in volume. This also happens to all aux audio when the "both" button
> is pressed as well. The result - when I'm monitoring com2, I can barely
> hear the audio warnings....not good!
>
> I have checked side tone adjustments on the both coms..no effect. The only
> volume adjustment that the KA unit has is for the external speaker...it is
> unaffected by the mic select button positions.
>
> You can get a look at my panel here: http://www.berkut13.com/berkut22.htm
>
> Can any of you KA-135 users/fixers out there verify that this is normal?
> Is there any way to adjust or change this operation mode? There is noting
> the manual that describes this behavior.
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