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CVO Technical => Electronic Toys and Gadgets => Topic started by: Eqcons on June 12, 2014, 02:20:31 PM
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If any kind soul who owns both a Road Tech Garmin 660 or 665 and an oscilloscope, I wonder if they could do me a favour?
As you will know, the RT660 and 665 send a tone before and after audio output (while the plain Garmin models don't) so that Harley's NIM knows to interrupt any other audio source. I need to know the details of the tones, in order to try having an interface made for 2014 models that will allow the use of a non-RT GPS which interrupts other audio sources.
Any volunteers? :drink: :drink: :drink:
Jim
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Where do you need it measured?
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Where do you need it measured?
Both before the announcement and after, please Joe - in case the tone after is different from the tone before.
Jim
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I was asking more so, which pins?
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I was asking more so, which pins?
Just on the audio output jack Joe.
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Ok, I will try to get to it this week.
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Ok, I will try to get to it this week.
Thanks Joe - very much appreciated!
Jim
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I was goign to do this today before I go on my trip to the Alps. Anyhow, I need ot put this on the back burner as I do not have the proper connector for the headphone jack. That was the first time I ever took that cover off and I just assumed it was a standard headphone jack. Turns out it is a bit larger - odd
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I was goign to do this today before I go on my trip to the Alps. Anyhow, I need ot put this on the back burner as I do not have the proper connector for the headphone jack. That was the first time I ever took that cover off and I just assumed it was a standard headphone jack. Turns out it is a bit larger - odd
No, it is just a standard 2.5mm stereo jack, Joe. Definitely NOT non standard....
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Your correct, the headset I had laying around that I was going to cut up was non-standard.
Let me see!
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I ran out of talent on this.
I checked the audio out jack and saw no tone and/or signal as a precursor. I also checked the pins on the back, but they must need the cradle hooked up to see something on them???
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I ran out of talent on this.
I checked the audio out jack and saw no tone and/or signal as a precursor. I also checked the pins on the back, but they must need the cradle hooked up to see something on them???
Thanks Joe - I guess you're right, and it must only be sent via the audio out line on the cradle harness, which is where I thought you'd be measuring it - see photo. That's where the NIM connects. I forgot there's a connector under that little rubber cover.