Today's Message Index:
----------------------
1. 08:12 AM - Power wiring for GNS 430W (Alan Barnett)
2. 10:15 AM - TV SHOP CLOSED (Barry Davis)
3. 11:57 AM - Re: Power wiring for GNS 430W (Tim Andres)
4. 07:42 PM - Re: TV SHOP CLOSED (Robert L. Nuckolls, III)
5. 08:16 PM - Vans EGT gauge not working... (Michael Burbidge)
6. 08:45 PM - Re: Vans EGT gauge not working... (Kelly McMullen)
7. 08:56 PM - Re: Vans EGT gauge not working... (Michael Burbidge)
Message 1
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| Subject: | Power wiring for GNS 430W |
The installation manual for the Garmin GNS 430W contains the following
table summarizing the power
connections:
The unhelpful text says
A power connection on P4006-44 is only required if NAV SUPERFLAG and/or
G/S SUPERFLAG is
utilized.
The power inputs P4001-19 and -20 provide power for all functions of the
400W Series unit except the
COM transmitter and the NAV & G/S SUPERFLAG outputs.
I'm not using the nav superflag (I don't even know what it is). How
should I wire the the power? Is it sufficient to supply power to P4001
pins 19 and 20 and P4002 pin 11? If so, what is the purpose of P4001
pins 15 and 72 and P4002 pin 12. Are they for connecting the box to a
backup power source?
Which ground pins should be connected? All of them, or would P4001 pin
77 and P4002 pin 21 suffice?
Message 2
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My wife's parents ran a radio/tv shop for 62 years. It is now closed.
Would anyone on this list be interested in any of the stuff? Schematics?
Capacitors? Scopes? Junk?
I am starting to clean the place up and can post the thinks from time to
time if there is an interest.
Barry
Carrollton, Ga
Message 3
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| Subject: | Re: Power wiring for GNS 430W |
I'd connect all the grounds pointed out, look at diagram H5 for power connections.
The reason for multiple power inputs like P4001 pins 19, 20 is because they
are diode isolated, so this is where you can power one or both if you want to
use a backup bus and the unit will then power from the pin with highest voltage
present. If not tie them together like it shows in H5.
Comm side, same deal, P4002 pins 11, 12 are diode isolated.
For some reason the new GTN 650 does not offer isolated inputs, at least that's
what I've been told.
Tim
> On Jun 6, 2014, at 8:11 AM, Alan Barnett <alansbarnett@verizon.net> wrote:
>
> The installation manual for the Garmin GNS 430W contains the following table
summarizing the power
> connections:
>
> <GNS430w_power.jpg>
> The unhelpful text says
>
> A power connection on P4006-44 is only required if NAV SUPERFLAG and/or G/S SUPERFLAG
is
> utilized.
> The power inputs P4001-19 and -20 provide power for all functions of the 400W
Series unit except the
> COM transmitter and the NAV & G/S SUPERFLAG outputs.
>
> I'm not using the nav superflag (I don't even know what it is). How should I
wire the the power? Is it sufficient to supply power to P4001 pins 19 and 20
and P4002 pin 11? If so, what is the purpose of P4001 pins 15 and 72 and P4002
pin 12. Are they for connecting the box to a backup power source?
>
> Which ground pins should be connected? All of them, or would P4001 pin 77 and
P4002 pin 21 suffice?
Message 4
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| Subject: | Re: TV SHOP CLOSED |
At 12:14 PM 6/6/2014, you wrote:
>My wife's parents ran a radio/tv shop for 62 years. It is now closed.
>
>Would anyone on this list be interested in any of the stuff?
>Schematics? Capacitors? Scopes? Junk?
>
>I am starting to clean the place up and can post the thinks from
>time to time if there is an interest.
>
>Barry
>
>Carrollton, Ga
Oh man . . . good thing you're so far away . . . I've got
too much 'history' on my shelves already and your
offer really has the juices going. Thanks for offering
tho!
Bob . . .
Message 5
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| Subject: | Vans EGT gauge not working... |
My Vans EGT gauge does not work. Not flying yet, but have done engine start. And
after a few minutes the EGT gauge is still pegged at 0. The CHT gauge does work.
These gauges are hooked to a single cylinder. Its a brand new gauge and sender.
Here's what I've done so far:
1) Verified power and ground to the gauge.
2) Verified continuity in the sender wires between the gauge and the space connectors.
3) Verified that the sender wires are on the correct terminal on the gauge.
I'm not sure what to do next, but I would like to figure some way to determine
if the problem is with the gauge, or the sender.
How would I do that?
Michael-
Message 6
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| Subject: | Re: Vans EGT gauge not working... |
I don't know much about Van's EGT. However, the analog EGT gauges such
as Alcor did not begin to register until temp got somewhere around
800-900 degrees. You won't get there with taxi power, but might with
some leaning get there at runup power. You don't say what engine it is
one. For carbureted engines it really isn't important. For fuel injected
engines you really need an analyzer for all cylinders.
On 6/6/2014 8:15 PM, Michael Burbidge wrote:
>
> My Vans EGT gauge does not work. Not flying yet, but have done engine start.
And after a few minutes the EGT gauge is still pegged at 0. The CHT gauge does
work. These gauges are hooked to a single cylinder. Its a brand new gauge and
sender.
>
> Here's what I've done so far:
>
> 1) Verified power and ground to the gauge.
> 2) Verified continuity in the sender wires between the gauge and the space connectors.
> 3) Verified that the sender wires are on the correct terminal on the gauge.
>
> I'm not sure what to do next, but I would like to figure some way to determine
if the problem is with the gauge, or the sender.
>
> How would I do that?
>
> Michael-
>
>
Message 7
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| Subject: | Re: Vans EGT gauge not working... |
Carbureted engine. Taxi power only. So maybe it is working.
Thanks
Michael
Sent from my iPhone
> On Jun 6, 2014, at 8:44 PM, Kelly McMullen <kellym@aviating.com> wrote:
>
>
> I don't know much about Van's EGT. However, the analog EGT gauges such as Alcor
did not begin to register until temp got somewhere around 800-900 degrees.
You won't get there with taxi power, but might with some leaning get there at
runup power. You don't say what engine it is one. For carbureted engines it really
isn't important. For fuel injected engines you really need an analyzer for
all cylinders.
>
>> On 6/6/2014 8:15 PM, Michael Burbidge wrote:
>>
>> My Vans EGT gauge does not work. Not flying yet, but have done engine start.
And after a few minutes the EGT gauge is still pegged at 0. The CHT gauge does
work. These gauges are hooked to a single cylinder. Its a brand new gauge and
sender.
>>
>> Here's what I've done so far:
>>
>> 1) Verified power and ground to the gauge.
>> 2) Verified continuity in the sender wires between the gauge and the space connectors.
>> 3) Verified that the sender wires are on the correct terminal on the gauge.
>>
>> I'm not sure what to do next, but I would like to figure some way to determine
if the problem is with the gauge, or the sender.
>>
>> How would I do that?
>>
>> Michael-
>
>
>
>
>
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