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Avionics Wiring: SL30/40 to PMA8000

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Albert Gardner

Joined: 10 Jan 2006
Posts: 455
Location: Yuma, AZ

Posted: Fri May 04, 2007 5:46 am Post subject: Avionics Wiring: SL30/40 to PMA8000

I am wiring my audio panel (PS 8000) to my Garmin SL30 and 40 and need some help.   

   

SL30, the comm. outputs to the audio panel are labeled as follows:  

Pin 14 Headphone  

Pin 13 Audio Ground  

Pin  8 Mic 1  

Pin  7 Mic Ground  

Pin  4 TxKey  

   

PS8000, the audio panel inputs from Comm Transceiver #1 are labeled as follows:  

Pin  9 Com 1 Audio Hi  

Pin 10 Com 1 Lo  

Pin 11 Com 1 Mic Audio Hi  

Pin 12 Com 1 Mic Key  

   

Has anyone completed this specific installation and could help out?  

   

Also, the audio panel says ground shields at audio panel only, float other ends while the SL30 diagram has some shields grounded there and says leave other end floating.  

   

Albert Gardner  

Yuma, AZ  

        [quote][b]

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Ted French

Joined: 09 Jan 2006
Posts: 54
Location: Kelowna BC Canada

Posted: Fri May 04, 2007 6:29 am Post subject: Avionics Wiring: SL30/40 to PMA8000

Albert

  

 I have this exact installation. E-mail me your address and I'll send the  cad dwg in PDF format to you.

  

 ted_french(at)telus.net

  

  

Do Not Archive  

Ted French C-FXCS 

RV-10  Flying 

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Tim Olson

Joined: 25 Jan 2007
Posts: 2879

Posted: Fri May 04, 2007 6:32 am Post subject: Avionics Wiring: SL30/40 to PMA8000

Regarding the grounds, do them as the PS8000 manual shows.



The SL-30's "Headphone" is the "Audio Hi".  Lots of avionics

just call the signal and ground "Hi" and "Lo", so think of

the "Com 1 Lo" as the audio signal ground.  Same with the Mic.

The Com1 Mic Key should just apply a ground to your Nav/COM

pin that will cause it to transmit, when you push the PTT button

wired into your audio panel.



The attached PMA8000 wiring diagram should be almost everything

you need.



The audio panel wiring is about the most complicated in the entire

panel, and certainly can have the most wires of just about

everything.  Mine is wired with dual music inputs, both switchable

to be fed from either jack as front or rear for split music

in either jack direction, and it also includes the telephone input,

and I filled up the audio inputs.  It also has Karoke mode, and

the muting override, so it's pretty much a complete install.

Can't go without karoke, so you can yell to the music....and with

headphones, your passengers can't even hear you. 



Tim Olson - RV-10 N104CD



Albert Gardner wrote:

 	  Quote: 	
		   I am wiring my audio panel (PS 8000) to my Garmin SL30 and 40 and need 

 some help.

 SL30, the comm. outputs to the audio panel are labeled as follows:

 

 Pin 14 Headphone

 Pin 13 Audio Ground

 Pin  8 Mic 1

 Pin  7 Mic Ground

 Pin  4 TxKey

 PS8000, the audio panel inputs from Comm Transceiver #1 are labeled as 

 follows:

 

 Pin  9 Com 1 Audio Hi

 Pin 10 Com 1 Lo

 Pin 11 Com 1 Mic Audio Hi

 Pin 12 Com 1 Mic Key

 Has anyone completed this specific installation and could help out?

 Also, the audio panel says ground shields at audio panel only, float 

 other ends while the SL30 diagram has some shields grounded there and 

 says leave other end floating.

 Albert Gardner

 

 Yuma, AZ

 

 *

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Albert Gardner

Joined: 10 Jan 2006
Posts: 455
Location: Yuma, AZ

Posted: Fri May 04, 2007 7:32 am Post subject: Avionics Wiring: SL30/40 to PMA8000

Hey thanks Ted.  

ibspud(at)roadrunner.com (ibspud(at)roadrunner.com)  

Albert Gardner  

Yuma, AZ  

   

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Albert Gardner

Joined: 10 Jan 2006
Posts: 455
Location: Yuma, AZ

Posted: Fri May 04, 2007 8:29 am Post subject: Avionics Wiring: SL30/40 to PMA8000

Thanks Tim. My confusion is over the fact that there are 5 pins in the SL30 and only 4 in the PMA8000 for the Com 1 radio.  

I think the solution is to run both the SL30's pin 13 (audio ground) and pin 7 (mic ground) to the PMA8000 pin 10 (com 1 lo).  

Albert Gardner  

Yuma, AZ (  

        [quote][b]

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Tim Olson

Joined: 25 Jan 2007
Posts: 2879

Posted: Fri May 04, 2007 9:03 am Post subject: Avionics Wiring: SL30/40 to PMA8000

Page 19 of the SL-30 manual shows something similar when wiring to an

LS-10/15 audio panel so I see no problem there.



Tim Olson - RV-10 N104CD - Flying

do not archive

Albert Gardner wrote:

 	  Quote: 	
		   Thanks Tim. My confusion is over the fact that there are 5 pins in the 

 SL30 and only 4 in the PMA8000 for the Com 1 radio.

 

 I think the solution is to run both the SL30's pin 13 (audio ground) and 

 pin 7 (mic ground) to the PMA8000 pin 10 (com 1 lo).

 

 Albert Gardner

 

 Yuma, AZ (

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Albert Gardner

Joined: 10 Jan 2006
Posts: 455
Location: Yuma, AZ

Posted: Mon May 07, 2007 6:02 am Post subject: Avionics Wiring: SL30/40 to PMA8000

Many thanks to Ted and Tim for the wiring info. Ted's diagram answers a lot

of questions for wiring this particular setup.

Albert Gardner

Yuma, AZ

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