Today's Message Index:
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1. 12:44 PM - Re: KX155 noise-only (zwakie)
2. 09:12 PM - Re: Re: KX155 noise-only (Charlie England)
Message 1
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| Subject: | Re: KX155 noise-only |
I just returned from my aircraft and tested transmission, using a handheld as a
receiver.
The radio IS still transmitting, so the problem is outputting to the headset through
the intercom.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=263720#263720
Message 2
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| Subject: | Re: KX155 noise-only |
Being new to maintaining and troubleshooting issues with avionics, I am kind of
hoping someone can put me in the right direction to get my NAV/COM set working
again.
My KX155 stopped functioning. All that I am getting now is noise in the headset.
Not getting my voice echoed either. I've tried all variations for squelch and
volume, on radio, headset and intercom - nothing but noise at every possible
combination.
When pressing the PTT-switch, the "T" for transmitting is showing, but I can't
state for a fact that it actually is transmitting (I will test that on a dummy
frequency using my handheld radio as a receiver the next time at the hangar).
Does anybody have any suggestion to the most likely causes please?
Thanks.
Marcel
zwakie wrote:
>
> I just returned from my aircraft and tested transmission, using a handheld as
a receiver.
>
> The radio IS still transmitting, so the problem is outputting to the headset
through the intercom.
>
>
Hi Marcel,
I pasted your 1st message into this one to get all the symptoms together.
What kind of noise? Is it 'white' noise like you'd hear on an AM radio
tuned between stations, or an old TV set to an empty channel? If so,
does the radio's volume control have no effect on the noise volume? If
no effect, have you checked the nav section's volume? I've actually seen
this happen to people on a couple of occasions with combo nav/comms. The
nav (noise) volume can overwhelm everything else in the radio.
If it's not white noise, and the nav volume is in fact turned down, and
the comm volume is in fact turned down, is it a hum or buzz? If so, is
it still there if you unplug your mic cord? If so, it might be that the
audio output of the radio really does have a problem.
Charlie
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