Today's Message Index:
----------------------
1. 05:44 AM - Re: GNS430 Microphone/Sidetone Problem (Robert L. Nuckolls, III)
2. 09:03 AM - Re: GNS430 Microphone/Sidetone Problem (Matthew Prather)
3. 09:32 AM - Re: GNS430 Microphone/Sidetone Problem (Tim Andres)
4. 11:22 AM - Re: GNS430 Microphone/Sidetone Problem (Sacha)
5. 02:26 PM - Garmin 430W - Comm & Nav Power from Separate Busses (Buckley William)
6. 06:04 PM - Re: GNS430 Microphone/Sidetone Problem (David Lloyd)
7. 07:56 PM - Schematic symbol (mmayfield)
8. 11:11 PM - Re: Schematic symbol (Jeff Luckey)
Message 1
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| Subject: | Re: GNS430 Microphone/Sidetone Problem |
At 05:22 PM 7/25/2014, you wrote:
>
>
> > When you push the PTT, does the transceiver
> > go into transmit mode?
>
>I'll have to check Monday, but it seemed to. I should modify my
>description of the sound to "Static with clicks" when I key the mic,
>since there is a static element to it also.
Okay. If the intercom is working then the
AUDIO paths to the two microphone inputs to
the intercom are intact. Without having
a schematic of the IC . . . I have
no way to deduce how the PTT commands
are processed going though the IC.
In one of the Flightcom installation manuals
I found a suggested tool for bypassing
the IC . . . which is also useful for trouble-
shooting.
Emacs!
Suggest you check your manual for such a
recommendation and have the tool on hand.
With the IC bypassed the radio should
work normally as if only the pilot's headset
is connected directly to the radio. Whether
or not this produces improved behavior is
an important clue for tracking down root cause
of your problem.
Bob . . .
Message 2
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| Subject: | Re: GNS430 Microphone/Sidetone Problem |
Wasn't there some discussion awhile back about how the GNS has two power fee
d paths and that if one of them opened, the radio would appear to work but i
t wouldn't transmit? I think someone had this issue when their radio wasn't
fully inserted into the tray/rack. Might not be the case here, but could be
worth checking out.
Regards,
Matt-
Sent from my iPhone
> On Jul 26, 2014, at 6:43 AM, "Robert L. Nuckolls, III" <nuckolls.bob@aeroe
lectric.com> wrote:
>
> At 05:22 PM 7/25/2014, you wrote:
m>
>>
>>
>> > When you push the PTT, does the transceiver
>> > go into transmit mode?
>>
>> I'll have to check Monday, but it seemed to. I should modify my descripti
on of the sound to "Static with clicks" when I key the mic, since there is a
static element to it also.
>
> Okay. If the intercom is working then the
> AUDIO paths to the two microphone inputs to
> the intercom are intact. Without having
> a schematic of the IC . . . I have
> no way to deduce how the PTT commands
> are processed going though the IC.
>
> In one of the Flightcom installation manuals
> I found a suggested tool for bypassing
> the IC . . . which is also useful for trouble-
> shooting.
>
> <227d876f.jpg>
>
> Suggest you check your manual for such a
> recommendation and have the tool on hand.
> With the IC bypassed the radio should
> work normally as if only the pilot's headset
> is connected directly to the radio. Whether
> or not this produces improved behavior is
> an important clue for tracking down root cause
> of your problem.
>
> Bob . . .
Message 3
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| Subject: | Re: GNS430 Microphone/Sidetone Problem |
The 430 does have separate comm and NAV power feeds, but I believe most ofte
n they are on a single fuse/CB/wire and simply "Y" into the two pins inside t
he D-sub connector. If the comm side is not powered the comm info display on
the RHS of the screen will not be there.
Tim
> On Jul 26, 2014, at 9:01 AM, Matthew Prather <mapratherid@gmail.com> wrote
:
>
> Wasn't there some discussion awhile back about how the GNS has two power f
eed paths and that if one of them opened, the radio would appear to work but
it wouldn't transmit? I think someone had this issue when their radio wasn
't fully inserted into the tray/rack. Might not be the case here, but could b
e worth checking out.
>
> Regards,
> Matt-
>
> Sent from my iPhone
>
>> On Jul 26, 2014, at 6:43 AM, "Robert L. Nuckolls, III" <nuckolls.bob@aero
electric.com> wrote:
>>
>> At 05:22 PM 7/25/2014, you wrote:
om>
>>>
>>>
>>> > When you push the PTT, does the transceiver
>>> > go into transmit mode?
>>>
>>> I'll have to check Monday, but it seemed to. I should modify my descript
ion of the sound to "Static with clicks" when I key the mic, since there is a
static element to it also.
>>
>> Okay. If the intercom is working then the
>> AUDIO paths to the two microphone inputs to
>> the intercom are intact. Without having
>> a schematic of the IC . . . I have
>> no way to deduce how the PTT commands
>> are processed going though the IC.
>>
>> In one of the Flightcom installation manuals
>> I found a suggested tool for bypassing
>> the IC . . . which is also useful for trouble-
>> shooting.
>>
>> <227d876f.jpg>
>>
>> Suggest you check your manual for such a
>> recommendation and have the tool on hand.
>> With the IC bypassed the radio should
>> work normally as if only the pilot's headset
>> is connected directly to the radio. Whether
>> or not this produces improved behavior is
>> an important clue for tracking down root cause
>> of your problem.
>>
>> Bob . . .
>>
>
>
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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>
Message 4
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| Subject: | Re: GNS430 Microphone/Sidetone Problem |
I had that problem. The GNS430 wasn't fully inserted into its slot and although
the RX and TX button lit up it did not seem to transmit (or receive as I remember).
See
http://forums.matronics.com/viewtopic.php?t=98650&view=next&sid=a9694aaf0de05619e08664647aea1483
> On 26 Jul 2014, at 18:01, Matthew Prather <mapratherid@gmail.com> wrote:
>
> I think someone had this issue when their radio wasn't fully inserted into the
tray/rack. Might not be the case here, but could be worth checking out.
Message 5
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| Subject: | Garmin 430W - Comm & Nav Power from Separate Busses |
99,
Using the AeroElectric Z-11 schematic, I plan to supply the Nav side of the Garmin
430W from the Essential buss and the Comm side from the Main buss. The Garmin
install manual shows the comm and nav functions of the 430W to be powered
by separate wires with separate circuit breakers. With my equipment list I don't
need the comm function of the 430W during battery only operations but I do
need to power the nav side. In an alternator failed situation with the master
switch off and the Essential buss alternate switch on, any reason why the 430W
nav (GPS & VOR/LOC) will not work with the comm side receiving no power?
Thanks,
William Buckley
Message 6
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| Subject: | Re: GNS430 Microphone/Sidetone Problem |
Sacha makes a very good point. .
The 430 chassis to box-chassis connector fit is finicky.
I know. . .I have the "T-shirt"
If the box-chassis is mounted in the aircraft panel a little to deep, this
causes a problem. For when the 430 is slid into the box, it will not seat
back deep enough to fully engage some connector pins.
The fix is to loosen up the panel mounted box chassis and pull it forward to
be flush with the panel or even a tad ( 1/16") out in front of the panel and
then re-bolt it back to the panel framing.
Another point. . .I do not recommend that you use the 430 locking jack
mechanism to pull the 430 back into its locked position. If something is
not aligned correctly you will not know it using the this method and could
damage pins.
I suggest that you get the 430 inserted by hand, fingers on each end of the
the 430 panel. Gently rock it back in place feeling for any obstruction.
Get it started in, turn the jacking system just enough to take up the slack.
Then, using fingers only, rock the 430 further back into place and again
feel for any odd resistance, then, using the jack, take up the slack.
Continue this until you "feel" it seat properly with it rear connectors.
Stop if you feel any odd resistance and start over after checking for any
bent pins, etc.
David
----- Original Message -----
From: "Sacha" <uuccio@gmail.com>
Sent: Saturday, July 26, 2014 11:20 AM
Subject: Re: AeroElectric-List: GNS430 Microphone/Sidetone Problem
>
> I had that problem. The GNS430 wasn't fully inserted into its slot and
> although the RX and TX button lit up it did not seem to transmit (or
> receive as I remember). See
>
> http://forums.matronics.com/viewtopic.php?t=98650&view=next&sid=a9694aaf0de05619e08664647aea1483
>
>
>> On 26 Jul 2014, at 18:01, Matthew Prather <mapratherid@gmail.com> wrote:
>>
>> I think someone had this issue when their radio wasn't fully inserted
>> into the tray/rack. Might not be the case here, but could be worth
>> checking out.
>
>
>
Message 7
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| Subject: | Schematic symbol |
OK, I give in. I've looked everywhere for a schematic symbol for a switch-breaker.
I have every type of switch known to humankind, and standard circuit breakers,
but not a switch-breaker.
Any clues, or is it just drawn like a standard circuit breaker?
--------
Mike
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=427390#427390
Message 8
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| Subject: | Re: Schematic symbol |
Mike,=0A=0AI'm not aware of any special symbol for a switch/circuit breaker
.- I would use the standard breaker symbol.- Whether or not it is used
as the normal operating switch is probably not germane at the schematic lev
el.- What is important is that it can protect the wire, so show it as a s
tandard breaker.=0A=0A-Jeff=0A=0A=0A=0AOn Saturday, July 26, 2014 8:09 PM,
mmayfield <mmayfield@ozemail.com.au> wrote:=0A =0A=0A=0A--> AeroElectric-Li
st message posted by: "mmayfield" <mmayfield@ozemail.com.au>=0A=0AOK, I giv
e in. I've looked everywhere for a schematic symbol for a switch-breaker. I
have every type of switch known to humankind, and standard circuit breaker
s, but not a switch-breaker.=0A=0AAny clues, or is it just drawn like a sta
ndard circuit breaker?=0A=0A--------=0AMike=0A=0A=0A=0A=0ARead this topic o
nline here:=0A=0Ahttp://forums.matronics.com/viewtopic.php?p=427390#42739
=
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