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.
Related
Ok guys.. what i would like to do is get the sound of the himalaya on my car stereo so i can watch a movie with perfect car sound instead of the internal speaker of the himalaya.
1st option: An FM Modulator that wil be connected through the 2,5mm jack but the problem here is i have to modify the cradle so the 2,5mm jack will fit.
2nd option: maybe a bluetoothdevice that is connected to the car stereo??
any other option??
i would like some opinions on how to deal with this one..
what i did was used a 2.5 to 3.5 jack converter (got it from hk but should be available elsewhere). then i used a an audio in-out jack (with a 3.5mm jack); plugged it into the now converted 3.5mm xda jack, then plugged the output into the audio input jack of my car stereo and there you go. almost similar to the system used for plugging in your ipod to the car's sound system. i use a bt headset so that takes of the calls. when the phone rings the music stops and the call comes in. butttttt....sometimes the media player doesn't come back on and i have to hit the play button. sure the unit is mounted but it can be a drag sometimes...
do u have some pics?
how did u solve the cradle problem blocking the 2,5mm jack input?
i am so curious!!
i'll have to take pics then. but the car mount i use is not officially for an xda unit; i just went and bought one when i was in hk for a business trip. the cradle is basic; clamps on the unit from the sides using those spring-action arms with anti-slip rubber-like material (?). the underside is supported by two stems...giving it the appearance of being a 2-legged fork. the supports are small enough so that they don't block the slot for plugging in the car charger and the microphone jack. the cradle is then supported from the back; which leads to the arm connected to the windshield via a heavy duty suction cup....well so far it hasn't fallen off... from there the 2.5 to 3.5 plug converter is around...an inch and half long maybe...the "male" 2.5 end plugs into the xda's "female" jack and at the other end is the "female" plug. the audio input/output connectors are basically similar to your vcr to tv connection; one plugs into the female 3.5 plug (connected to the xda) and the other simply plugs into the car stereo. not complicated at all if you ask me...and you don't really need to have the cradle / holder since you can just leave your unit on one of the shelves under the dash. again, similar to how the ipods are plugged into the car stereo...
ok i have a pretty good idea what it looks like but the problem i have is that my carholder/cradle is blocking the female jack connector so i think im gonna drill out a hole.
i bought me a 2,5 mm jack that i have to solder but the jack itself is too big so now i need an L shaped 2,5mm jack similar to the headphones of the himalaya...
thx for the input m8 (lol) stil a pic would be nice
I'm looking for replacement for Magician's (wired) headset coz I think the one that comes with it sucks (low audio quality).
Anyone can suggest good alternatives with good MP3 quality (enough bass,...) and also as the phone's handsfree.
Thanks a lot.
If you are handy with a soldering iron, cut off that stupid pair of earbuds and solder on your favorite headset (that's what I did) or you can buy 3rd party adapters. If you solder on new headphones, don't forget to get some of that really cool heat shrink stuff to put over the wires, it turns out very professional looking and very strong.
Hmm...nice idea.
Unfortunately i'm not good at soldering.
So it seems i'm stuck with alternative to find a good earphone+hansfree combo....
SOny Ericsson p900 headset
5x times sound quality, + only one with a microphone that fits the 2.5mm plug. I searched long and hard to get this answer as i cannot solder too
this headset is not a stereo one, rigth ?
There are some adapters that have a built in mic and you plug the 3.5 headhones of your choice into it. There is also a small adapter that is just for audio 2.5-3.5. It is true that the Sony P800-900 headsets are compatible with the Jam. Unfortunately I have yet to hear original earphones that are acceptable to me. I can't remember where I bought it, but the adapter with a built-in mic and 3.5 headphone jack is probably what you are looking for. I use one in my car. Maybe somone has a link for you?
Link herehttp://www.pocketpctechs.com/detail.asp?Product_ID=PPCPADPT11
Link herehttp://www.pocketpctechs.com/detail.asp?Product_ID=PPCPADPT11
Click to expand...
Click to collapse
But in this case, is there any high quality 3.5mm earphone that also work as handsfree for the Jam?
This solution uses the internal mic of the PPC Phone so you can use any high quality headset from your local hi-fi store.
Can you confirm that this doesn't mess up the stereo or do anything else weird?
I found it! This is the adapter that I bought for my Sony P800 years ago(works with Magician). You can use it to plug into your home stereo, favorite headphones and it even has a volume control. Mainly I use it in my car. I use it to plug my Jam into my car stereo and sometimes I use it to plug in the earbud for one ear wired headset communication. ENJOY!
http://pc-mobile.net/sp8aa.htm
I have that. I don't like it too much since it feels very fragile (including the thin wire) and the fact that it isn't a simple straight wire means it snga everywhere.
I only use that adapter in the car. It is good for people that can't make their own headset by soldering. I made a custom headset from Koss headphones and a Sony handsfree. That baby sounds really good, and I'm picky about sound quality.
Does the mic work? Can you accept and end calls using the button?
Thanks,
K
Yes, the above adapter works exactly as the original handsfree headset (+ volume control) except that you have to plug in a normal 3.5 plug stereo headphones. If there are other models out there without the reel thingy, I haven't found it.
Does anybody know the wiring diagram for the supplied headset?
Wolfgang
Sorry wolfgang, this is just a bump and not an answer. I'd also like to know if anyone's investigated the headset. What I'd like to be able to do (and I've never even *seen* the headset yet, still stuck in the hell of trying to obtain an Exec, see other threads) is use the microphone / button from the headset with a different pair of headphones.
I assume you mean the plug wiring? I've not had time to double-check this yet, but I believe it's the same as my Jornada 928 mic/stereo-headset.
Reading from the tip of the plug:
Plug tip: Left ear piece (short cable on the Jornada)
1st ring: Right ear piece (long cable on the Jornada)
2nd ring: Microphone
Top ring: Ground
When it arrived, I briefly tried the Jornada headset in the O2 Exec, and it worked in both ears, but I didn't check the left/right orientation. Until my Jabra BT500 bluetooth headset arrived, I was also using a self-modified (re-plugged) Plantronics single-ear headset with the tip and 1st ring linked to give mono, and that works without problems.
I suspect the standard headset shorts one of the signal lines to ground to give the answer/end function, but don't know which one.
HTH
Hey Astage can you tell me the Headset you using with single headset?
I am not heavy music listener, and I want a wired headset with single speaker ...
I will check plantronics sites also...
Please update me with the model which works fine with Wired Single Headset.
dont forget that you can use completely normal headphones in the Jasjar, this means (as posted Astage) meaning the ring that is the odd one out, compared to normal headphones, is used for both the Mic and the button. If nokia's are anything to go by the button will switch in a resistance of a certain value to indicate it has been pressed (this is because if the Mic is a coil mic it will already read as 0 ohms, a straight short to ground)
Mniko: Unfortunately this will not help you - I have the Plantronics M130 - however, as I said, I had to wire a different plug onto it.
The problem is that most single-ear headsets come fitted with a 3-ring 2.5mm diameter plug, wired as:
Plug tip: Microphone
1st ring: Ear-piece
Top ring: Ground
The Exec/Universal and other microphone+stereo headsets seem to use a larger 4-ring 3.5mm plug wired as per my earlier message. Because of the different wiring for the microphone signal you cannot just use a 2.5 to 3.5mm converter - even if you can find one. The situation is made worse if the headset (e.g. Plantronics) has a microphone sensitivity switch built into the plug, as you may need to also transfer this into the new plug.
Ice_coffee: Thanks for the update - saved me having to cut mine open.
yes I understand.... the prob is 2.5 & 3.5mm... I dont think any headset available around 3.5mm with mic and single headset, that made me to cut off the second speaker, which I already did...
I found one on http://pc-mobile.net/pxdaa.htm
But they dont seems to have it anymore... I really wonder how come HTC didnt thought of it... after all universal is a phone to rite?
Ok well, using my multimeter and some maths I figured out that
1) Under normal circumstances the jasjar sees the mic as a 1000 ohm load
2) It knows when you have pressed the button because the load drops from 1000 ohms to a mere 45 ohms
3) you could acheive this by putting an 47ish ohm resistor on a switch in parallel with the mic, using this info you can construct a working headset from almost any headset on the market, most notably the many many headset/mic combos available for PC's
Hi all
I have a MDA compact which I wish to connect to my car stereo as a handsfree unit. I have an auxiliary input for my stereo.
Is it possible just to purchase a 2.5 to 3.5mm lead for this? I have a gut feeling the mic won't work - please help? Is it possible to buy such a lead with a built in mic?
Thanks
Carl
Hi, I used to have a XDAII which I connected to the auxillary port on my car stereo, just like you suggest. It worked perfectly. When using the phone, the caller's voice woudl come out of the car speakers and the mic was powerful enough to pick up my voice even though the unit was mounted on my windscreen.
Unfortuntely, both the Wizard and the Exec automatically disable the mic when you plug into the headphone socket. Not sure about the MDA comact. Sorry couldn't offer more advice on your particular device, but I hope my experiences help.
monster said:
Unfortuntely, both the Wizard and the Exec automatically disable the mic when you plug into the headphone socket. Not sure about the MDA comact.
Click to expand...
Click to collapse
I do have the same setup. I can confirm U the mic still work after U plug in the adapter but I normally use a BT headset when I am in the car.
OK, so I assume that if I purchase a 2.5mm to 3.5mm lead, the mic should work?
carlreader said:
OK, so I assume that if I purchase a 2.5mm to 3.5mm lead, the mic should work?
Click to expand...
Click to collapse
Yes. 8)
OK - did some work on this.
I decided to cut the earplugs off of the supplied headset, and attach a 3.5mm socket.
I now have a custom XDA mini lead
All works, however volume from car stereo speakers is extremely low. Any ideas? (Yes, I have checked car volume, phone volume and headphone volume!)
Cheers
Carl
jackleung said:
monster said:
Unfortuntely, both the Wizard and the Exec automatically disable the mic when you plug into the headphone socket. Not sure about the MDA comact.
Click to expand...
Click to collapse
I do have the same setup. I can confirm U the mic still work after U plug in the adapter but I normally use a BT headset when I am in the car.
Click to expand...
Click to collapse
Hi Jackleung, my mic is being diabled, and i am beginning to think that I may not have the right connector. I have a standard 3.5mm connecting the exec. Can you let me know how you have wired your device with the type of connector? You may be able to solve a longstanding problem of mine.
Thanks in advance.
I found my mic was cancelled with the Mini, hence the custom cable.
hope this helps!
monster said:
Hi Jackleung, my mic is being diabled, and i am beginning to think that I may not have the right connector. I have a standard 3.5mm connecting the exec. Can you let me know how you have wired your device with the type of connector? You may be able to solve a longstanding problem of mine.
Thanks in advance.
Click to expand...
Click to collapse
I think my adapter is just a standard 2.5mm to 3.5mm converter. I tried 2 different adapter (one from Radio shack and the other one from ebay: http://cgi.ebay.com/USB-CABLE-headp...ryZ15040QQssPageNameZWD1VQQrdZ1QQcmdZViewItem)
Both are working for me (I will try again today and confirm U tomorrow), therefore I think yr problem is in the exec hardware itself.
To Carl,
Yr setup will not work since yr supplied headset adapter has at least 4 connection on the plug compare to 3 on the standard one. The extra connection is for the mic. If U cut the wire like this:
<---- X --- mic+volumn control ------ ear plugs
Then U can no longer use the mic w/ the custom wire. But if U:
<------- mic+volumn control -- X ---- ear plugs
then the mic on yr mic+volumn control will pick up the voice
hi jackleung
Thanks for the reply - the lead was cut after the mic but before the earphones.
This was because a standard lead with a 2.5 / 3.5mm adaptor didnt work.
My only issue now is the low volume!
Cheers
Carl
I tried it on my Imate Jam again. My mic on the Jam still works (eg: Voice Command via Cyberon Voice Dial. So do phone conversation) even I use my 2.5mm/3.5mm adapter to connection it to my car stereo.
Hi,
I did the same for me and a friend of mine with a Univer..er - Jasjar and connected this to an FM transmitter - We have excellent sound quality, volume and the you can still answer calls by pressing the Mic Button
Frikkie
(If you are gonna be late - dont rush, else someone else and YOU will be cross)
check connections?
I have done exactly what you did, put a 3.5mm socket on the end of the included handsfree cable.. volume is fine, and i regularly connect it to the aux in the car, and multiple sets of headphone/speakers...
The best suggestion to your volume problem is to try again.. i know i had issue with the stereo channels getting screwed up (and even combined at one point) and it was just trial and error getting the connections clean..
You have to ensure that both the shaft and tip connectors on the socket are grounded to the shared ground on the circuit board.. otherwise the audio will probably be less than perfect.. check for dodgy soldering/connection.. coz i can assure you that your theory does work!
Dan
There is another topic on this here.
The person from there uses:
http://www.expansys-usa.com/product.asp?code=PPCPADPT02
which has two 3.5mm plugs.
Description: It has a 2.5mm plug at one end (this plugs into the PocketPC) and two 3.5mm sockets at the other end (into which you plug your 3.5mm headset or headphones).
My question was: could I put a standard 3.5 car kit mic into this 3.5 headset jack (the one with the mic)? Would the mic work if I plug it into a headset jack?
I assume the other one (headphones = stereo only) I will plug it directly into my car auxiliary via a 3.5mm to RCA cable, right?
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.