Audio In and Out in bottom connector - MDA III, XDA III, PDA2k, 9090 Accessories

Well, I guess this proves that there is in fact audio in/out capabilities in the bottom 22-pin connector:
http://www.seidioonline.com/ProductDetails.asp?ProductCode=CK8AG21MXDA3
Now, if only anyone could figure out which are the pins...

I correct myself.
I emailed the guys at Seidio, and this is the dialogue:
--------------------------------------
>> Before I buy a Seidio G2100M for my SX66, I’d like to make sure that it doesn’t require an audio connection from the headset jack. The question is: Does it take the audio In and Out from the bottom connector in the PDA?
Answer from Seidio:
Hi,
As far as I know, There is not audio out from the bottom connector. The cable is still needed.
Seidio
Follow-up question:
>>> Thanks for the answer, but are you positive we are talking about the same model? I read the specs of the G2100M and it says: "Built-in audio jack in the holder means no additional audio cables needed"
…and there’s no mention to the extra cable needed. This is still kind of confusing to me. I’d appreciate your clarification.
Answer:
Sorry, that is a mistake on our site, we will correct it on Monday.
Seidio
---------------------------
So, mistery solved.
BTW, the headset Audio In connector does a lousy job if you plug in a microphone (condenser or dynamic) but it gives you perfect input from a line-level device (such as a headphones output from a iPod). It's mono, of course, but at least you can use it to record from pre-amplified sources. In case anyone is interested, Mini-Discs are great as preamplifiers. The combination of both (and some good software like Resco Audio Recorder and PocketWAV) provides excelent portable on-the-field recording and editing.

When you look at the pictures on the site
http://www.seidioonline.com/PhotoGallery.asp?ProductCode=CK8AG21MXDA3
you can see the audio out connector. What is this one used for then ? Only for phone speaker ?
Is there anyone out there who can tell us whether this unit really lives up to what is stated on the site :
- mp3 output through bottom connector
- phone speaker output through bottom connector
- phone mic input through bottom connector
Another question I would like to add is if the phone switches automatically to speaker mode when it is placed in the cradle.
I'll send a link of this post to the technical people at Seidio. Hopefully they can give us a definite answer to our questions...
Ciaos,
Kristof

One can also find some more information on the subject in the following thread :
http://forum.xda-developers.com/viewtopic.php?t=17149

Hi,
it is possible to get audio out from bottom connector.
have a look at the following post http://forum.xda-developers.com/viewtopic.php?t=19379
It ssems that seidio doesn't use this feature. There is no audio out at the MDAII kit.
greetings

Related

Sound from main connector?

Hi
Can anybody confirm if sound is wired into the main connector, I currently plug into the headphone / microphone jack plug to get TomTom sounds in the car, but it would be much more convenient to insert just one connector instead of two.
Has the connector wiring diagram been published anywhere?
Cheers
Justin
oops
I have just found it
http://wiki.xda-developers.com/wiki/Connectors
Justin
Good luck!
Hi
The wiring diagram from
http://wiki.xda-developers.com/wiki/Connectors is incorrect for the Himalya.
I only managed to get sound from one channel, and grounding pin 19 did not switch off the internal speaker.
Does anybody know of another source of the pinout for the connector.
I could buy a http://www.expansys.com/product.asp?code=108730 but that seems expensive.
Cheers
Justin
Justin,
More than one source confirmed the pinout of the connector is correct for the Himalaya.
Are you sure you did not get thing wrong?
Maybe some other threads (key word "carkit" or "car kit") are of interest for you.
YES sound is fed to the bottom connector
BUT dependent of who you speak with (ie which rom theyre using):
- all sound (both in-call phone and pda)
- in-call phone only
Unfortunately my carkit (O2 XDA II as sold by Expansys) only let me hear in-call phone sound. My rom is the T-Mobile 1.60.00 (1.60.36 ext rom).
Hi edsub
After posting I read about the problem with sound only comming out of the bottom connector when In a call, I didn't try this. Hopefully a later ROM will fix this issue. Until then I will use the headset jack plug.
Cheers
Justin
justinp said:
I only managed to get sound from one channel
Click to expand...
Click to collapse
I have the same problem with the original CarKit of the XDA I.
So this could be a general problem....
Stefan
I used to have stereo from the bottomconnector from my XDA 1, but not from my MDA 2...
As far as imknow Edsub is correct, only in-call audio works for now with most ROM's...
Getting all-audio through the speakers seems to be a rare story...
@johan: It sure is a rare story. Especially from the stories that seem to imply that one it getting all sound thru the bottom connector, I only got feedback from one person that claimed this was the case for rom 1.60.00 in combination with the T-Mobile MDAII carkit.
Which makes it even stranger because that same rom is the one I am using (and only having in-call phone audio) . . .
:?:
edsub said:
@johan: It sure is a rare story. Especially from the stories that seem to imply that one it getting all sound thru the bottom connector, I only got feedback from one person that claimed this was the case for rom 1.60.00 in combination with the T-Mobile MDAII carkit.
Which makes it even stranger because that same rom is the one I am using (and only having in-call phone audio) . . .
:?:
Click to expand...
Click to collapse
Rare (Eng.) = Zeldzaam (NL.) :roll:
I only read one story of a guy who said Tomtom work through the speaker, i'm afraid the was another mixup about waht speaker. The internal one or not....
According to Mocki on www.ppc-welt.info two pins are important:
pin19 should be grounded
pin9 should be UNconnected
This situation makes the T-Mobile carkit behave like wished:
When there is sound output (no matter what source):
1. radio is muted
2. sound goes via bottom connector to carkit-speakers (or car-audio line-in)
Does anyone know how pin 9 is connected inside the O2 XDAII carkit???
Help - can see any of it!
Hi
http://wiki.xda-developers.com/wiki/Connectors just gives me XML/XSL errors, and I cant speak German - really could do with a wiring diagram for the bottom connector.
I have Carcomm car cradles, Nokia Bluetooth car kits (kinda of works now) and a very neat bluetooth head set. I want the cradle to send audio to an aux input on the car stereo so I can play MP3's from the 512 SD card I just got!!
I can drill a hole in the bottom of the carcomm and attach a 3.5mm jack but it would be much better if I could use the connector
Ta!!
Re: Help - can see any of it!
JONTYB said:
http://wiki.xda-developers.com/wiki/Connectors just gives me XML/XSL errors, and I cant speak German - really could do with a wiring diagram for the bottom connector.
Click to expand...
Click to collapse
If you use an other browser than the Internet Explorer (e g. Mozilla) you ´ll be able to see the page....
I made 2 Screenshots of the important part. Hope it helps you....
HTH
Stefan
Wiring for bottom connector
Hii
Thanks for that - something to do this weekend now!!
:lol:
JB
Hi
If that works it will be great, I'm not going to try it until someone else confirms it works as I need to get a hardware guy to do the soldering for me.
So if any of you are going to try it, please remember to post back here.
Cheers
JustinP

tired of car cradles without audio out?

I'm sick of trying to find a car cradle that has audio out, ps2 and 12v for charging!
Why is it that no manufacturers of xda cradles ever realise that some of us want to listen to mp3's in the car and have tom-tom voice prompts coming through our stereos!
Being right handed, I want my PDA on the right of the steering wheel, so I can operate Tom-Tom before setting off, or change tracks on media player. I did look at the Brodit pro-clip solutions, but they all seem to be for the centre console for my car (a citroen AX)
I've discovered that the driver's side vent mount has a removable panel, which means I can easily mount a small piece of wood (effectively a small flat shelf) for mounting a cradle, this also brings the device out of the reflective glare zone in the windscreen during night driving. It also means all I need is a standard xda iis cradle to do this mod.
So with much careful thought I've decided to do the following:
Buy a spare cradle:
http://www.my-xda.com/xda2s_other.html
Which leads me to the next question....
Has anyone got any modding experience with the xda2/xdaiis cradle?
similar to this old posting for the Wallaby...
http://forum.xda-developers.com/viewtopic.php?t=256&highlight=cradle
(although I couldnt see any of the images on this old posting!)
In theory, this project has 3 key issues to resolve...
1) Powering the cradle and Bluetooth GPS
Three options seem to be available...
a) The hobbyist approach...I've seen various "car-kit diagrams" like this one,
http://forum.xda-developers.com/files/xda_car_kit_circuit.jpg
but to be honest I have no pcb making experience.
b) 12V to 5dc cigarette socket transformer adapter to provide power to the cradle, and perhaps to the bluetooth gps for charging. This should be easier to achieve!
Anyone have any links for low cost solutions for this, obviously it would need to convert 12VDC to 5DC at 2-3Amps
c) As the xdaiis usb cradle charges directly from a USB power source, this seems an Ideal solution!
http://www.expansys.com/product.asp?code=EXP_USB-CLA
2) Audio out: THE MAIN PROBLEM!
Ideally I just want to get in the car and cradle the device, no other connections being required.
Therefore I need to modify the xdaiis cradle for audio output...
Ideally, the feed for the audio should come from the bottom connector, when the xdaiis is cradled.
With this in mind, I found this article about dismantling an xdaii cradle...
http://en.pdamobiz.com/en/forum/forum_posts.asp?TID=42&PN=1
If you look at the images on this web-page, you can see that - at the back of the cradle on the opposite side of the usb cable from the 5volt dc input is what looks like a pcb pinout for a headphone connector...
is this right? Can anyone confirm this.
Would it be possible to solder a connector onto here (assuming the solder pads connect to the 22pin connector!)
As this would be far easier than mucking about trying to solder onto the miniscule pins on the bottom of the 22pin connector on the cradle as it goes into the pcb!
If it works of course!
b) modify a headset
I did consider modifying an old wallaby headset to wire it into my car amp
http://wiki.xda-developers.com/wiki/Connectors , does anyone have any info on the pinout for the himalaya/blue angel headphone socket? I have also tried a friend's xda II headset on the IIs and yet again they have changed the pinout! The audio connections are once again totally different, resulting in the "echoing" effect when one headset is plugged in from the other device. This means that the audio ground pin has changed since the xdaII headphone socket schematic! This difference is also confirmed by looking at the handsfree "pod" on both headsets... The IIs has one button for answering a call, where the II has two buttons, wether it is the same as the XDA1 (Wallaby) remains to be seen....
c) buy a PDA2k 3.5mm headphone adapter...
http://www.expansys.com/product.asp?code=118289&sbadd=118289
Then use a standard lead to connect it to the hi-fi amp in the car.
3) charging the TOM TOM BLUETOOTH GPS
I'm wary of putting anything other than the recommended voltage (5VDC) into this device, so the best option is to supply power using (1b) or (1c) above, perhaps cutting into the supplied RJ cable to minijack psu to hook it up from the same supply.
While I'm on the subject of the bluetooth gps.... Does anyone knopw how long does the tom tom bluetooth gps work with a full charge?
Does it vary based on an active connection, or is it the same as on standby?
Do I need to power it in the car at all? Can I not just charge it as required at home? There doesnt seem to be much literature about the Bluetooth GPS reciever's battery life in the box!
Anyone care to comment on these ideas?
:lol: :lol:
I think the fact that no-one makes a cradle which provides audio-out through the bottom connector of the XDA2 is because the XDA2 doesn't provide this possibility. It's not the car-kit manufacturers' fault. Blame HTC.
However, I could be wrong... :roll:
My solution: I bought one of these XDA2 mounts ( http://www.pdamods.com/proddetail.asp?prod=A11XDA2MNT&cat=23 ) which works really well. It charges the phone and my TomTom BT GPS. To achieve audio-out I plan (eventually) to use the XDA2's headphone socket by drilling a hole through the mount's base in the right spot and using a 2.5mm jack adapted to play through the car stereo. Not an ideal solution, but surely must be simpler for you than trying to build a reliable (and safe!) 12V -> 5V convertor and butchering a spare XDA2 desktop cradle?
Just a suggestion... 8) Let us know how you get on. Good luck!
QUOTE 12V to 5dc cigarette socket transformer adapter to provide power to the cradle, and perhaps to the bluetooth gps for charging. This should be easier to achieve!
Anyone have any links for low cost solutions for this, obviously it would need to convert 12VDC to 5DC at 2-3Amps
Just about any mobile phone car charger will do.
Silicon s, you must be wrong :lol:
I have found someone that makes a DSP handsfree set with Audio on your car speakers, separate mic and all with the bottom connector. It even delivers laptopconnection for Dialup and GPS.
The overview
http://www.thb.de/showpage.php?lang=en&mode=show_product&cat=1&pid=2
Car Talk DSP
http://www.thb.de/showpage.php?lang=en&mode=show_product&cat=1&pid=2
The Cradles
http://www.thb.de/showpage.php?lang=en&mode=show_product&cat=1&pid=2
XDA docked
http://www.thb.de/bilder/take_talk/mda2_gps_big.jpg
http://www.thb.de/bilder/take_talk/mdaIII_large.jpg
MDA III - Important Information:
Replace file "Wavedev.dll" on your MDA III and restart the system. Audio response now can be listen via loudspeaker.
http://www.thb-service.de/download/MDAIII/Wavedev.dll
FYI, It appears that the replacement WaveDev.dll file offered by the car Kit company causes bluetooth headsets to stop working at all (not just in the car).
tfletch said:
FYI, It appears that the replacement WaveDev.dll file offered by the car Kit company causes bluetooth headsets to stop working at all (not just in the car).
Click to expand...
Click to collapse
That's what I'm looking for. Have you found anywhere to actually buy them? I looked over the whole site.
How about this alternative cradle. I bought one for my XDAIIs and it works perfectly. Got one for the birds XDA2 and that work great too.
It provides power to either a wired GPS or charges a bluetooth GPS, it has a built in speaker and a cables provided to run from the XDA's headphone socket to the cradle. THIS THING IS LOUD!
One word of caution, the speakers in my car are shielded so I don't get that warning noise from them that I am about to get a call or text. The speaker on the cradle is NOT shielded and so you do get interference when you are about to get a call or switch cells.
http://www.pdamods.com/proddetail.asp?prod=A1SSSPKMNT&cat=23
i thought about using my 6601 as an MP3 player in my car as well. but since my eclipse cdplayer does mp3, i abandoned the idea
option 1: cut up a 2.5mm headset and plug it into the top of the device
pros: cheap and effective
cons: have to plug it in every time (and unplug it to take a call)
option 2: pair a bluetooth headset with the device, crack it open and wire the speaker to a preamp
pros: wireless
cons: ruin an otherwise good bt headset, music would be in mono
option 3:
http://motorola.digitalriver.com/se...e&SiteID=motostor&productID=36065700&Env=BASE
"transfer audio to hands-free"
pros: wireless
cons: EXPENSIVE, pretty vague description
option 4:
http://www.itechdynamic.com/html/border22.htm
http://xprnnews.xfn.info/itech/nightingaleBSH338/en.htm
pros: wireless, stereo, routes incoming cails through car
cons: i cant find it anywhere
its called the "nightingale BSH338" or the "Bluetooth Stereo Clip Headset"
if anyone finds one, please reply with a link
ok i did some more reading on the subject and i found this (page 2 of the forum)
http://www.seidioonline.com/ProductDetails.asp?ProductCode=CK8AG21MXDA3
http://forum.xda-developers.com/viewtopic.php?t=17149

2.5mm Headset

Does anyone know if one can use any 2.5mm earplug handsfree with the XDA Mini S? The one supplied is difficult to carry lots of wires, would like to have a monaural one. Has anyone tried any? Kindly let me know. Thanks.
I have been looking for the same earphone since i bought the item on JAN06, till now I still cant find a compatible one.
That will be helpful if anyone know which is the best headphone with microphone.Not the Bluetooth one!
Thanks!
ebay Adapter eventually works
Hi there,
I was also looking for a good headset fromt he beginning on, the issue might be solved if I can install the A2DP software (will try later), but a nice wired headset would still be nice.
My favorite would be the ones SonyEricsson is shipping with the music phones.
I actually tested a 2.5mm adapter with cord and speakerpice (with clip) plus adapter for 3,5mm, which would be perfect. One was for Nokia, one for Motorola - both are NOT compatible with the HTCs!
Lately I saw a shop selling the same adapter specifically for HTC devices, so the problem might be solved.
Also I saw 2 wired 2,5mm stereo headsets from Jabra on the US website, they are for sale there but NOT in Europe. If these would work, they would for sure be of very good quality.
Anyone tested these?
Found one
I found one listed on Ebay under HTC Wizard. Its item number 9716253639, seller's name is 5starcommunication. Looks quite cool and they will mail it world wide. Will take sometime before it reaches India. But if anyone in the US orders and tries do let us know. Thanks.
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=9716253639&rd=1&sspagename=STRK:MEWA:IT&rd=1
I bought a 2.5mm to 3.5mm adapter from Expansys UK and it works just fine. Sorry - no part number on me, but it should be easy to find on their web site.
Hope this helps
bloney said:
I bought a 2.5mm to 3.5mm adapter from Expansys UK and it works just fine. Sorry - no part number on me, but it should be easy to find on their web site.
Hope this helps
Click to expand...
Click to collapse
Are you able to work with the MIC?
waiho said:
bloney said:
I bought a 2.5mm to 3.5mm adapter from Expansys UK and it works just fine. Sorry - no part number on me, but it should be easy to find on their web site.
Hope this helps
Click to expand...
Click to collapse
Are you able to work with the MIC?
Click to expand...
Click to collapse
I use it for headphones only (senheiser PX200 which sound great with the Wizard!), so not sure if they have mic connected or not. Sorry.
Get the adapter at radioshack.. there r tons n tons of them for $3.. i got one n it works like charm..
with/out mic
I wonder if the ones from Radioshack have a mic in the wire?
I have an adapter 2,5 to 3,5mm with GREAT sound quality, however without microphone in the adapter, thus I always need to unplug the adapter and take off the headphones to answer a call - sucks!
As mentioned so far i Only saw one adapter on ebay WITH a microphone in the adapter piece (and clip on the back) - but do not know how it performs...
http://cgi.ebay.de/XDA-Mini-MDA-Com...06652399QQcategoryZ123195QQrdZ1QQcmdZViewItem
You could also try this one ...
Handsfree and Headphone Adapter
Still no earpiece...
Sigh... still no proper in ear headset (monaural) in sight... :?
2.5 mm to 3.5 mm adapters at Radio Shack
Beware of the Radio Shack adapters. They stick out and are easy to catch on a doorway as you walk through it. I did so a few weeks ago and the headphone jack no longer worked. The adapter male end bent back and damaged the phone female socket. The result was very quiet sound from the headphone jack, totally unusable for phone or music.
I sent the phone back to T-Mobile and they very kindly sent me a replacement. I bought a new Radio Shack 2.5mm male to 3.5 mm female adapter and the same day proceeded to catch it on another doorway, bending back the male plug, and damaging the phone female headphone jack. No sound again from the headphone jack. I will stay away from the headphone adapters from now on.
Phone speaker not working after using headphones - No sound
I had a similar problem (not the same). After using a 2.5 to 3.5 mm adapter my phone speakers and the mic didn't work anymore. I was about to send the device in, when I read about a solution (I think it was in XDA-Dev somewhere).
You'll have to gently move the headphone jack forward and back, twisting it a litte or even better use some compressed air blowing into the jack. It works best, if you to take out the battery and blow from the back.
My speakers work again, but the same thing happens now and then. It seems there is some switch inside the headphone/mic jack, which doesn't go back. That only happens when I use the adapter.
I realize that this is an old thread, but here is an idea for you. As far as I know, pretty much any 2.5mm headset should work. I don't use it for my phone personally, but I recently purchased a Plantronics Gamecon X20 headset for my Xbox 360 after my old one broke. Since it has a plain 2.5mm jack on the end, I thought I would plug it into my phone to see how well it worked. The answer, pretty well apparently. My wife said that it was really clear and, likewise, she sounded really clear on my end. It's going to be a little larger than the ones that have the mic hanging down inline with the wire, but on the other hand, since it's a boom mic the sound quality should be superior with less noise. I haven't tried it for listening to music so I can't vouch for the quality there, but since you are wanting a monaural headset I rather doubt that is relevant anyways. The headset was only $20 at GameStop and they had a used one for $10.
two-zero said:
I had a similar problem (not the same). After using a 2.5 to 3.5 mm adapter my phone speakers and the mic didn't work anymore. I was about to send the device in, when I read about a solution (I think it was in XDA-Dev somewhere).
You'll have to gently move the headphone jack forward and back, twisting it a litte or even better use some compressed air blowing into the jack. It works best, if you to take out the battery and blow from the back.
My speakers work again, but the same thing happens now and then. It seems there is some switch inside the headphone/mic jack, which doesn't go back. That only happens when I use the adapter.
Click to expand...
Click to collapse
In your case, I would say that sounds like a bad adapter. I routinely use one in mine and don't have that problem. It's one of those nasty stick adapters though, so you have to be careful with them. I've seen some cable type adapters for not too much so you might look into one of those instead.
Found info which might help
HERE IS AN/THE ANSWER.
My WIZA200 and Sony P900 phone the mic headsets are compatable, even the answer button works. If you cant find what your looking for under the flavour WIZa or HTC etc... just look for what you need as a P900 type and you will be sorted.
I just checked the pinouts and this answers the very much asked question... what are the pinouts.... here they are....
http://pinouts.ru/CellularPhones-P-W/sonyericssson_headset_pinout.shtml
FOR WIZA AND SONY P900 >>>> 2.5mm 4 pole jack: PIN1 LEFT+, PIN2 RIGHT+, PIN3 MIC+, SHIELD(PIN4) GROUND. I just checked with multimeter and to get call answer pin3 mic and shield must short to signal the press of the answer button.
---
Just for reference Nokia 2.5mm 4pole jack is very odd... this is how they do it.
http://pinouts.ru/CellularPhones-Nokia/nokia_headset_pinout.shtml
on 4pole 2.5mm: 1=speaker+(positive) ### 2=mic+ ### 3=speaker -(negative) ### pin4 = mic - ###short mic+ and mic - to answer call
on 3pole 2.5mm: 1=speaker+(positive) 2=mic+ 3=shield(ground-negative) ### to answer call short speaker and shield.
See how they change their minds... first on 4 pole jacks answer call was on mic side short, then it goes on 3 pole jacks to short the speaker and ground to answer call... can these guys not make up their minds. Grrrr... totally baffling logic in this design, escept they can keep you buying specialised gear for each phone
Glad to see Sony and HTC used a more logical system and seem to stick to it. I suspect the HTC Touch HD 3.5mm is wired the same as the Wiza 2.5mm system just 3.5mm jack not 2.5mm jack.
Someone should make a 2.5mm 4pole to 3.5mm 4 pole converter to use old cherised headsets on the HTC Touch HD... know of any, anyone?
kull said:
Sigh... still no proper in ear headset (monaural) in sight... :?
Click to expand...
Click to collapse
Another solution.....
I know this might sound odd but a simple solution is get your stereo headset & mic thing and cut the right earpiece lead off...
Now you may have to strip the wire a bit and wrap a piece of insulating tape to stop the wires inside touching, which will cause problems (crackling or loss of audio on remaining speaker most likely). Once the wires are safely insulated away, youll have what you are seeking, a monaural one earpiece mic heaset... saves having to buy one that your finding hard to do.
Seems a shame to sacrifice a stereo headset down to mono, but if thats your poison, go for it.
pinouts.ru is the shiz
Get out the soldering iron and make a frankenstien. I grafted a 3.5 female to my old nokia's pop port so I could hook it to my stereo (before I got a BT adapter) and to my amplified helmet speakers (that were sorced from a computer speaker set.) Before I lost the phone I was planning to add a 2.5 mono female socket for a lil clip-on mic I have. Point being, it's only 3 signals and a ground, should be able to come up with something.
ts worth having a go
Yeah having a go is definately worth it. I just utilised the pinouts.ru stuff and a bit of personal common sense knowledge of the wirings and managed to make myself a 3.5 touch hd 4 pole jack into a 3.5 3 pole jack which works ofr my aircraft. I can now fly and make calls through my pilots headset. It shows it can work. You arent dealing with any dangerous voltages... its all piddly "put it on your tongue and you wont get hurt" voltages... speakers and mics... all easy to work out. Worth having a go.

9100 2.5 audio pin out

whether I am "search" disabled or there is no info about audio 2.5 jack pin outs.
will somebody give a link or provide connection diagram for mic, answer/mute button and audio outputs?
my aim is to make my own cable to connect the pda to car stereo to listen mp3s and also place a remote mic and switch somewhere in the car.
its done!
thanks a lot to whom gave me info about this topic. Here is what I have done today;
I bought an after market 2,5mm stereo headphones with mic and switch. it was 5 YTL equvalent around $3,5. I had the chance to try it with my qtek9100, but there was very poor sound level and quality, I didnt even try the mic. Actually I bought it just to get one 2.5mm 4 conductor jack.
I tried to make a drawing how the connections were, marked as "before". It is so wierd wiring that I have no idea which kind of device uses this kind of connection.
After modification, as you will see, instead of soldering the existing ear pieces, I soldered a female 3,5mm jack, so that I can connect whether a stereo headphones to use it as hands free or a casette adapter to use with car stereo and listen to mp3s(which in this case, when I receive or make a call, it will mute the music and give other sides voice to car speakers). Ive tested both possibilities and it works quite fine.
I hope this helps to ones that are willing to make this kind of adapter themselves.
Re: its done!
Thank U for contribution!
canstb said:
Ive tested both possibilities and it works quite fine.
I hope this helps to ones that are willing to make this kind of adapter themselves.
Click to expand...
Click to collapse
I want to give a more precise definition to jack pinouts.
AFAIK pin 4 - left channel, 3 - right. So U have reversed stereo sound or wrong picture female connector.

[INFO] Pinouts for Transformer Headphone/Mic Jack

Hey guys, thought I'd post up the pinouts. They match the Iphone ones in case anyone is wondering/wanting to make a breakout cable so that you can use headphones and an external mic.
Going from the center outward, i.e. tip to ring1 to ring2 to sleeve:
Tip = Left Channel Output
Ring 1 = Right Channel Output
Ring 2 = Ground (Shared with Microphone)
Sleeve = Microphone
Verified working with my old Logitech PC microphone. I have not checked if there is "phantom power" on the Mic lines (for electret mics).
Thanks!
verkion
if this is the case, i wonder why square readers do not work. Maybe honeycomb?
So there are no combined mic/headphones headsets on the market that would work with transformer (skype, gtalk, etc.)?
Tried to google it with no luck
dcmtnbkr: what are square readers? I managed to get the external microphone working with no problem yesterday.
s_life: any "made for iPhone" mic/headset should work. Same pinouts as them. I just wanted to make a breakout cable for more flexibility.
verkion
pretty typical 4 pole TRRS plug.... common knowledge really.
True...except that R2 and Sleeve are often reversed. Thought I'd do others a favor in case they wanted to make a breakout cable. *shrug* you don't need to know, then good for you.
verkion
dcmtnbkr said:
if this is the case, i wonder why square readers do not work. Maybe honeycomb?
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Mine works just fine...
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verkion said:
True...except that R2 and Sleeve are often reversed. Thought I'd do others a favor in case they wanted to make a breakout cable. *shrug* you don't need to know, then good for you.
verkion
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well the standard is r2/sleeve reversed, but ever since apple decided to swap them, they became the new standard... anyone would be crazy to release a product that didn't follow that... 99% of products are now compatible with the apple standard, if they want any sales.
i know why you posted it though.
Thanks for the info!
I'm trying with several headsets, from Nokia (WH-205)and from "for iphone"(iFrogz Luxe with mic)
the result was weird tho....
If I plug in the jack fully, 1) Nokia headset's mic don't work, but R/L output is OK
2) "For iPhone" headset's mic is working, but only give me right channel.
but if I plug in the jack only the TRR parts with out the S, 1) Nokia headset work perfectly with both R/L channel output and mic input, but 2) "For iPhone" one still only give me right channel with mic.
Any thought?
Thanks
verkion said:
Hey guys, thought I'd post up the pinouts. They match the Iphone ones in case anyone is wondering/wanting to make a breakout cable so that you can use headphones and an external mic.
Going from the center outward, i.e. tip to ring1 to ring2 to sleeve:
Tip = Left Channel Output
Ring 1 = Right Channel Output
Ring 2 = Ground (Shared with Microphone)
Sleeve = Microphone
Verified working with my old Logitech PC microphone. I have not checked if there is "phantom power" on the Mic lines (for electret mics).
Thanks!
verkion
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Thanks for posting what hardware worked and this pinout.
However, with previous hardware, I have found even the spacing of a quad plug is important.
If you have a micrometer, could you please post some measurements?
If you have a decent macro camera, could you please post a picture?
Hi verkion, I am looking for the same thing here; to record from the internal mic and use the headphones simultaneously with my Asus Transformer. I am wanting to achieve this to turn my Transformer into a multi-track recorder, so I have been using the J4T and FourTracks apps.
Not being too handy with a soldering iron, I brought a pre-made breakout cable which states that it works with iPods (as this post indicates that they are wired the same - amazon.co.uk/gp/product/B004SP0WAQ).
However, I am having problems getting this working. I cannot verify that the cable is at fault as I don't have any other devices to test this with, so I was wondering what app you used to record audio and listen at the same time?
Strangely, J4T doesn't recognise the mic and headphone simultaneously, and only picks up the mic alone after this is inserted after it is launched. FourTracks does recognise both, but only after pulling the jack out a little so the tip doesn't contact (and this results in a far lower level signal).
Do you have any advise that you could throw my way? Am I using a cable with the non-iPod wiring, or are the apps simply not up to the task? Cheers in advance!

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