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Music Inputs

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d_emond(at)mweb.co.za
Guest

Posted: Sat Apr 12, 2008 4:05 am Post subject: Music Inputs

I had a music jack wired into my system. My audio panel is a Garmin 340. I 

have a sonyericcson mobile phone with walkman capability. What I find is 

that with the walkman at max volume output the sound through the headphones 

is reasonable, engine off on the ground. However with the engine running at 

cruise I can barely hear the music. Are there settings on the system I 

should check ??



Dave Emond

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earl_schroeder(at)juno.co
Guest

Posted: Sat Apr 12, 2008 5:54 am Post subject: Music Inputs

Hi Dave, If you want to add a another 'device', I've used one described in the following link:  http://www.boostaroo.com/   Earl

Dave wrote:

I had a music jack wired into my system. My audio panel is a Garmin 340. I 

have a sonyericcson mobile phone with walkman capability. What I find is 

that with the walkman at max volume output the sound through the headphones 

is reasonable, engine off on the ground. However with the engine running at 

cruise I can barely hear the music. Are there settings on the system I 

should check ??



Dave Emond

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Martin Pohl

Joined: 30 Jan 2006
Posts: 118
Location: CH-8645 Jona SG, Switzerland

Posted: Sun Apr 13, 2008 1:58 am Post subject: Re: Music Inputs

Earl, thank you for the great link. I was looking for exactly such a device. Do you know if there is any amplifier around with an additional volume control knob?



Martin

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_________________
Martin Pohl
Zodiac XL QBK
8645 Jona, Switzerland
http://www.pohltec.ch/ZodiacXL/Main.html

Martin Pohl

Joined: 30 Jan 2006
Posts: 118
Location: CH-8645 Jona SG, Switzerland

Posted: Sun Apr 13, 2008 2:07 am Post subject: Re: Music Inputs

Just found this: http://www.minidisc.org/headbanger.html



Will try to get it running with my Harman Kardon Drive Play iPod Controller, Flightcom Intercom 403stereo and Lightspeed 3G headphones.



Martin

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_________________
Martin Pohl
Zodiac XL QBK
8645 Jona, Switzerland
http://www.pohltec.ch/ZodiacXL/Main.html

dustinp(at)hughes.net
Guest

Posted: Sun Apr 13, 2008 3:35 am Post subject: Music Inputs

Dave,

  

 I just had this same question, after a recent  discussion by Vern Little about the AMX-2 Audio Mixer Amplifier, and Vern  was nice enough to send me the following information when I inquired about  using the AMX-2 to solve this issue..

  

 Apparently Garmin added a pre-amp for the music inputs on  the 340 to help solve just the problem you describe, and that I also have.  

 They came up with a modification called Mod 2 first, in  which you place in pin in the #15 position of the J-2 plug on the back of the  GMA 340, and connect it directly to ground to activate this pre-amp.  

 Apparently sometime later they came out with the Mod 5,  which allows you to install a wire and pin in the same #15 position, and connect  it to a switch that is connected to ground so that you can have the pre-amp  either off or on depending on whether what you have plugged into the music input  needs further amplification or not. This switched ground also apparently helped  eliminate the amplification of other "noises" in the system, by being able to  turn it off when the pre-amp wasn't needed for the music input. The Garmin notes  state this switch can only be installed in units with Mod 5.

  

 So, you will need to find out if you have either of those  Mods. Vern said that it was probably listed on a tag on the unit, but I was able  to find it on some paper work that had come back with the unit after some  factory repair work had been done, that showed my unit had the Mod 5 installed.  Now I need to find a reasonable source for a high density pin crimper.  

 I have Steins 4-way indent crimper for the standard  density pins, but not the high density.  

 I need a 15 pin high density connector for another Mod I  need to make to get my 430W to talk nice to my GRT EFIS through my Approach  Avionics Hub. 

 Stein has the HD pins, but not the 15 pin  HD connectors I need.

  

 So if anyone has a good ( read cheap ) source for the  high density pins, 15 pin HD connectors, and tools, I'd like to hear about them.  

 If not, Approach will do the mods I need for a price that  may be less than investing in the tools, but it would be nice to have the tools  for future needs too.

  

 Thanks

 Dustin Paulson

  

  

 I had a music jack wired into my system. My audio  panel is a Garmin 340. I 

      have a sonyericcson  mobile phone with walkman capability. What I find is  

      that with the walkman at max volume output  the sound through the headphones 

      is  reasonable, engine off on the ground. However with the engine running at  

      cruise I can barely hear the music. Are there  settings on the system I 

      should check  ??

      

      Dave  Emond



  

   [quote][b]

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emrath(at)comcast.net
Guest

Posted: Sun Apr 13, 2008 12:56 pm Post subject: Music Inputs

Check your installation.  There is a "high music gain" feature that required

a grounding of Pin J2-15 and provide a lot of gain.   I'm still building so

I haven't run the engine yet, but this greatly improved my volume.  Also, I

have a ANC David Clark and for some reason turning on the ANC really

improved the sound quality and gave a boost to the low end!  

Good Luck.



Marty



Time: 05:05:59 AM PST US

From: "Emond" <d_emond(at)mweb.co.za>

Subject: Re: Music Inputs

I had a music jack wired into my system. My audio panel is a Garmin 340. I 

have a sonyericcson mobile phone with walkman capability. What I find is 

that with the walkman at max volume output the sound through the headphones 

is reasonable, engine off on the ground. However with the engine running at 

cruise I can barely hear the music. Are there settings on the system I 

should check ??



Dave Emond

- The Matronics AeroElectric-List Email Forum -

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h&jeuropa

Joined: 07 Nov 2006
Posts: 645

Posted: Mon Apr 14, 2008 4:30 am Post subject: Re: Music Inputs

Dustin,



I used a D sub crimper similar to the one Stein sells on Hi Density D sub pins and it worked fine.  The hi density pins are .050 in diameter (where the crimp takes place) while the standard pins are .075.  But my crimper contracts to about .025 diameter.  So I tried a couple and found the wire is nicely crimped.  You do have to be careful to position the pin correctly in the crimper as they are different lengths.  But to do a few crimps, a standard d sub crimper seems to  work OK.



Jim Butcher

Europa N241BW

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dustinp(at)hughes.net
Guest

Posted: Tue Apr 15, 2008 2:59 pm Post subject: Music Inputs

Thanks Jim.

  

 I guess it's certainly worth a try, and see if they will  pass the pull test, but I sure wouldn't want to be in hard IFR, and have my MP3  player all of a sudden be unhearable because of a poor crimp. ~( ;-  )

  

  

  

 Dustin,

       

      I used a D sub crimper similar to the one  Stein sells on Hi Density D sub pins

      and it  worked fine.  The hi density pins are .050 in diameter (where the  crimp

      takes place) while the standard pins are  .075.  But my crimper contracts to about

       .025 diameter.  So I tried a couple and found the wire is nicely  crimped.

      You do have to be careful to position  the pin correctly in the crimper as they

      are  different lengths.  But to do a few crimps, a standard d sub crimper  seems

      to  work  OK.

      

      Jim  Butcher

      Europa  N241BW



   [quote][b]

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