6-pin connector audio system BMW K1200 Lt - BMW Luxury Touring Community
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post #1 of 7 Old Mar 7th, 2007, 4:27 am Thread Starter
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6-pin connector audio system BMW K1200 Lt


does anyone know the pin-out or the wiring diagram of the six-way connector for the earphones of audio system of BMW 1200 LT?

I'm talking about the round connector with 6 pin.

Thanks for the help...
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post #2 of 7 Old Mar 7th, 2007, 5:05 am
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Go to the J&M website they have it.

Pete Murray
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post #3 of 7 Old Mar 7th, 2007, 8:11 pm
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This info is from a good source, but I cannot guarantee it's accuracy...

"Here's what I think they look like. The pins for the mic have DC power
on them, and if you use a headset with a dynamic mic in it (voice coil
and magnet type) you will need to put a DC blocking capacitor in series
with either of the mic pins, doesn't matter which...use a small
non-polarized 22uF capacitor, and it will pass the voice signal easily
while keeping the DC off the mic. The DC will simply cause the mic's
voice coil to move to one side and stay there, degrading the performance
seriously, and maybe even overheating and failing the coil itself."


Originally Posted by Feanor

does anyone know the pin-out or the wiring diagram of the six-way connector for the earphones of audio system of BMW 1200 LT?

I'm talking about the round connector with 6 pin.

Thanks for the help...
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post #4 of 7 Old Mar 8th, 2007, 1:25 am Thread Starter
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Thanks so much Tim!

I will try and let you know......thanks!
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post #5 of 7 Old Mar 8th, 2007, 10:12 am
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An old site discussing converting a 5 pin to a 6 pin headset - but contains schematics and explainations -

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post #6 of 7 Old Mar 9th, 2007, 10:46 pm
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Question Schematic Challenged?

I recently built some extension wires based on the schematic for the BMWLT >>> Older Goldwing at the link referenced above, including the capacitors. Couldn't figure out why the caps would go on the speaker grounds...makes more sense that they would go on a mic wire as mentioned in a prior response.

If anyone can help me out, please tell me where I went wrong. I have an '84 Wing with a Chatterbox HJC headset built into HJC helmets. The helmets and headsets are only 1 year old, and I'd like to use them with my 'new to me' 1999 BMW K1200LT as well as my old Wing. Chatterbox doesn't make a 'lower cord' to mate with the 6-pin BMW connector, so I have the 5-pin male that mates with the Goldwing.

The extension cord I made had a 6-pin male to mate with the BMW, and a 5-pin female connector that mates with the lower headset cord.

Hope that I'm not hi-jacking the thread, but has anyone been able to successfully make a converter cord? When I plug mine in, all I get is a crackling sound. The bike was sold to me stating that everything worked, however the prior owner (2nd owner) didn't use headsets or intercom so I don't know if it works properly or not. I've read many threads on the dreaded BC1 Comm system, so I have my suspicions...

I've also read some threads where people made headsets from various Radio Shack parts. Any success stories on that would be appreciated. J&M said that they won't install in the HJC helmets (Chatterbox speakers are thinner than J&M), and if I need to invest in new helmets and headsets, I'd like to wait for bluetooth to be available.

Sorry for the long thread, but I've been researching the site for info without finding a specific thread on the Chatterbox HJC headsets. I also emailed the author of the schematic a few weeks ago, but haven't heard back.

Thanks in advance for any insight.


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post #7 of 7 Old May 16th, 2007, 12:27 pm
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1200lt And Harley

I have just installed a Baehr K1200LT system and require info so i can use the same helmets on my Harley Electroglide 07. It seems Harley has more pins in there connector jack than Bmw/Baehr

Can anybody assist please as I use my Bmw Helmets on the Harley as well

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