I'm trying to modify a broken handsfree set into a headphone adaptor which leaves the builtin mic active, but I have trouble getting the wiring right.
Does anyone know which color wire is which inside the headphone cable?
I checked at http://wiki.xda-developers.com/wiki/Connectors, but I have 6 (!) wires in my cable, and the description only lists 4.
I suspect the two copper wires (one in each cable) are both GND and can be connected toghether. But then, I still have one too much, a green one.
I scraped off some isolation on the wires and twisted them together with the wires from one of the earpieces (i tried both), but however I do I can't get any sound!
I have another headset, so I know the jack is still working.
Does anyone have a clue?
Thanks!
Anyone?
This may help. I removed the ear phones supplied with the XDA and added a female connector. Now I can use any 3.5mm earphone set, and the handsfree mike.
I found the instructions here...
http://www.tekguru.co.uk/phpBB2/kb....ighlight=modifying+making+headphone+connector
Copper goes to earth, red is right channel and green is left channel for sterio.
Hope this helps
Related
I started to work on my 2.5mm-to-3.5mm adaptor.
It is a reduction between four-pin 2.5mm jack male connector (on XDA2's side) and two 3.5mm female connectors - first for stereo headphones and second for the microphone.
It's done and it works perfectly. I've got a high quality big headphones with built in microphone so listening to WMA music is near-HiFi and even telephone calls are much better for both sides.
But the problem is : buttons. The original headphones supplied with the XDA2 have two buttons: red and green. XDA1 had only one button and that button was just interconnecting two wires. But with XDA2 I've tried all combinations of interconnecting all of those four wires and nothing happened.
I didn't dare to open the original XDA2 headset, but I'm curious, what would I find.
Is there something more complicated in XDA2 headphones? Aren't they just interconnecting two wires but rather sending back to XDA2 some complicated signal?
XDA2 connected to Car HiFi
I already tested to use the XDA2 as a source of audio signal for :
1) HiFi aplifier at home
2) InCarAudio
It works perfectly and the sound is great.
I also tried to use a better external microphone connected to XDA2 - and results are great also.
So my adaptor 2.5mmJack-to-Two3.5mmJacks is really usefull for me.
But I really can't determine, how those two buttons on original headset do work!
my headphones are broken so I dont mind taking mine apart - want a photo of the interior?
Take a good look at the 2.5mm connector on the XDA2 handsfree. You will notice that it actually has 5 pin connectors. The fifth pin connector is actually the metal placed on the inside of the black cylinder or tube where the 2.5mm plug's base is located.
I'm hoping to get some headphones for listening to MP3s on the JAM. Rather than modify the original pair, I'd like to get some which retract into a reel. I know there are some available which have 2.5mm mini jacks on them, but I'm worried that they won't work with the JAM.
To test the water, I've tried a standard stereo 2.5mm -> 3.5mm adapter (from MAPLINS) and found that it doesn't work quite right. The left channel comes through fine, but the right channel seems to be a mix of both left and right. I figure this is because the normal stereo plug actually shorts out two of the connectors on the JAMs socket (which has an extra connector presumably for the MIC?)
Soes anyone here know how these 4-pole sockets work? Are they standard across phones? Is it possible to buy a 4-pole 2.5mm plug and then solder that onto a different pair of headphones? (I can't seem to find 4-pole 2.5mm plugs anywhere...)
If we can figure this out, I'm sure it'd be very useful info for all those JAM users out there...
Cheers!
Simon
I already replied in the compact Jam forum.
http://www.compactjam.com/forum/forum_posts.asp?TID=258&PN=1
Matt
Try this...
http://www.expansys.com.au/product.asp?code=113091
i have the following problem: when i plug my wizard to my car stereo via 2.5mm stereojack cable the build-in mic stops working so i can't talk using the cars stereo...is there any reg-edit or program that can allow the built-in mic to work while the cable (or any handsfree) is inserted? i read somewhere that there were people that have their cables plug but still the mic is running...can you tell me if your jack has 3 poles or 4 poles? thanks in advance!
help please [;
i'd rather say it's a hardware problem. in most headset jack sockets i've encountered it's done by a jack plug simply unpluggin' built in speaker/mic due to the design of the socket. of course i may be wrong, nut i'd say registry has nothing to it...
i think as you do, but someone mentioned on another post that he puts the cable and the built in mic continues to work.
Hello!
I enabled the aux input of my car radio and wire a cable jacks.
the problem is that when I get a call from my htc hd2, the sound is heard from the speakers but does not work the microphone for conversation because the hd2 course off the microphone of the device active because the headset with microphone.
Is there any way to wire the cable jack (4 pins) and attach a microphone to the cable itself? Some might suggest a scheme electricity?
thanks!
:sorry my bad english
In theory it should work as long as you can get the components and wire the cable correctly. whether or not your mouth would be too far from the microphone might be an issue,
Unfortunately, if I connect the phone jack, hd2 excludes the microphon base to activate the headset that is built, then the conversation can not happen, but I feel he did not hear anything
should understand how the microphone is connected to the headphone series
spippo said:
Hello!
I enabled the aux input of my car radio and wire a cable jacks.
the problem is that when I get a call from my htc hd2, the sound is heard from the speakers but does not work the microphone for conversation because the hd2 course off the microphone of the device active because the headset with microphone.
Is there any way to wire the cable jack (4 pins) and attach a microphone to the cable itself? Some might suggest a scheme electricity?
thanks!
:sorry my bad english
Click to expand...
Click to collapse
Depending on where your phone is, you could use a regular 3.5 mm male to male extension going from your radio to the phone. I have mine set up like that and the mic on the phone itself is powerful enough to pick up your voice. I ran a 10ft cable(3.5 mm male to male) from the radio,under the instrument panel, up the side of the door in the molding of the windshield to the sunvisor where my phone is clipped to the visor by the clip on the case. It works fine but you have to adjust the volume between your phone and the radio to find the best combination to avoid major feedback so the caller doesn't hear his own voice echoing in the background. I can't post links yet but if you go to youtube and search "iphone handsfree iphone in car setup" you will see how I did my iphone but I now have the same setup with the Hd2.
I am trying to adapt an external dynamic microphone for use with my Exhibit 4G (there is no forum section for this phone and I believe it is similar to the Epic 4G). I bought a 3.5mm PRRS plug with three discrete shielded stripped end cables (White=Left Audio, Yellow=Right Audio, Red=Mic), a PRS inline jack, and a female XLR mic connector.
Using the PRRS pinout of P=Left Audio, R1=Right Audio, R2=Ground, and S=Mic, I soldered the shields of White and Yellow to the sleeve of the PRS jack, White to the pin and Yellow to the ring. My stereo headphones work perfectly with this arrangement.
I then soldered the shield of Red to ground of the XLR and Red to audio. I then successfully tested all connections from the PRRS plug to the PRS jack and the XLR connector with an ohmmeter.
When everything is connected, the headphones still work the same but the phone doesn't "hear" the external mic or disable the internal mic like it does with the headset that came with the phone.
What am I doing wrong? Any ideas?
Thanks!
I don't see you getting much help here, but maybe I'm wrong.
Sent from my SPH-D700 using XDA