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OESF Forums > Distros, Development, and Model Specific Forums > Model Specific Forums > 6000 - Tosa
yodabob
OK, so here's another "weird" thang. The headphone jack on the SL6000 is a 2.5mm, not a 3.55mm which is the internationally recognized freakin' standard. I guess you could pound it in with a ball peen hammer, which I'm tempted to do, but there is an adapter available. Apparently the Treo 600 uses the same f****d up size, so here's a link to the stupid thing. Aaaarrrggghhhh !

http://www.handspring.com/products/Product...jhtml?id=410006
yodabob
Here's a Radio Shack part# for the required headphone adapter. Part# is 274-373 and costs about 4 bucks
mk500
Uh oh, this reminds me of the sound issue with the Palm Tungsten C. It was the first Palm PDA with integrated WiFi. I bought one, but then I found out that the "headphone" jack is actually a 2.5mm "headset" jack which is designed for mic and MONO sound, like most standard cellphones have (meant for VOIP, etc.). Palm's reasoning was that this is a "business tool". For that unit, adapters to standard 3.55mm headphones would give MONO sound only, coming out of two speakers. The users were incredulous, but in the end we all found that our units were incapable of producing stereo sound. Needless to say I returned mine, as MP3's/movies are important to me.

Are you sure the 6000 is stereo capable? Hopefully Sharp wouldn't do something as stupid as Palm did.

QUOTE
OK, so here's another "weird" thang.  The headphone jack on the SL6000 is a 2.5mm, not a 3.55mm which is the internationally recognized freakin' standard.  I guess you could pound it in with a ball peen hammer, which I'm tempted to do, but there is an adapter available.  Apparently the Treo 600 uses the same f****d up size, so here's a link to the stupid thing.  Aaaarrrggghhhh !
http://www.handspring.com/products/Product.jhtml?id=410006
chapman
No "uh, oh" is warranted. The SL-6000 is stereo. It sounds quite good.

I have a set of 2.5 mm plug headphones and a set of 3.5 mm plug headphones. The 2.5 mm set works as it should (separate channels are obvious on some of my MP3s) and the 3.5 mm works just as well, with a 3.5 to 2.5 mm adapter...
chapman
I just thought I'd add that my cellphone microphone/ear-piece thingy *seems* to work on the SL-6000, with the voice recorder.

VoIP anyone?
gab74
Good morning, what kind of headphones for Zaurus SL6000 ?
The standard stereo walkman headphones 3.5mm jack is too big for zaurus !

Where Can i buy one ?
zaurusgeek
I'm also looking for info on this jack. The docs simply call it a "stero headphone jacl", but I've seen references in the reviews to using headsets with mics. Anyone got any technical specs on this?
smammon
It's a fairly standard jack. Plug in a 2.5mm cellular headset and you can record/listen to voice memos - use zmeeting etc.

Get a 2.5mm to 1/8 stereo adapter from RadioShack and you can plug in standard walkman type headphones and listen in stereo...
zaurusgeek
How can it be both? A 3 conductor plug requires the sheild be ground. In the headphone app, both tip and ring are outputs. In the headset app, one is out and one is mic in. The physics of it aren't working for me.
smammon
Well, seeing as we have some intelegence in the hardware here it would seem to just depend on the software. Considering what computers do it's not really a huge leap that they could switch what's connected to one or two conductors on a jack based on what software is running...

Heck, even with my amaturish "understanding" of electronics and audio signals I'd think that at headphone level audio (at most) you don't even have to make it switch. Logically, one conductor must be both mic input and a channel output so just cap (ok probably a bandpass filter since it's audio) the outupt side so you aren't driving that with mic audio. You could always let the output go to the mic side. Won't have any effect unless there is software attempting to record it. Might even be used as a kind of mixer to lay music behind a voiceover...

Just to prove it to myself I just tried it all again. Plugged in a $10 cellular headset and recorded a voice memo - then played it back. Pulled that out and inserted my radioshack adapter and stereo headphone (without closing the voice memo app) and launched the media player. Then proceded to listen to Clapton in stereo whilst launching Hancom and opening a file. The music didn't even skip - and that is something my 1.7gHz Windoze box can't seem to manage. biggrin.gif
zaurusgeek
Well I've done it now too and I'm a believer. I found a document describing how this auto-switching is typically done at
http://www.wolfsonmicro.com/uploads/docume...nts/WAN0134.pdf
and it makes sense. They obviously sense whether the tip-shield connection is low impedance (like a walkwan style headphone) or high impedance (like a mic) and turn the bias voltage on and off. Pretty smart, tho probably susceptable to failure if hi-fi type high impedance headphones are ever used (but that would require 2.5mm->3.5mm->1/4" conversion...not very pretty)
redtree
This must be why my Monsoon speakers will only play on one channel - I was wondering what was going on.
zaurusgeek
Yep, try putting a 50 ohm resistor across each spkr input and I bet you'll get both channels
redtree
Finding 50 ohm resistors, not mention the other bits I needed, proved a challenge in my little burgh, but then I got the bright idea of just using a pair of old cheap headphones I had lying around as the 'resistors' and just wiring them in by means of a 3.5 mm Y connector I also had lying around. Rube Goldberg would be proud, but it works slick as can be. Thanks for the tip!

The motivation, by the way, is that I wrote a little python app to grab random tracks off of my music server, stash them on the Zaurus and then play them back with madplay. I liked it a lot and rather than try and find a command line music player for the Windows box which the speakers were connected to, I thought I would just plug them into the Zaurus. Now I am a happy camper. :-)
nevarrie
For the fact that I have already lost my first adapter from Radio Shack I am looking at get headphones like the JAVOebuds.

From waht I can tell any of the headphones made for the Treo 600 or the sprint phones should work with the 6000. Though as of right now I have nto found any of teh 2.5mm headphones in the stores yet, but if I ask for the stero headphones for the Treo 600 people know what I am looking for.

Anyone else find any other headphones that already have the 2.5mm plug so I do nto have to carry an adapter?
anmol10
So the SL6000 2.5m has has either,

- a stereo audio out
- a mono audio out and microphone in

but I cant imagine both. I haven't tested my unti yet, but can folks vouch for one or the other?

Thanks,
-A
dsavard
No, it has both. The switch is automagically done when plugging the device. The Zaurus recognize from the impedance if there is a mic (input) device or if both channels are for output.
dsavard
And for the details (I haven't test this myself) just consult the following thread:

Zaurus 6000 headphones
anmol10
Yup, absolutely right. I saw the impedance post, and just verified it.

Anyone know of really cool mikes to use? I'm using Chameleon cellphone headsets, which are okay but not 'secret service' cool factor.

Thanks,
-A
saakmotu
Why Sharp decided to put a 2.5mm jack in the side of the z6k will likely be one for the ages.
I would suppose it was figured that the Z would be used more for VOIP with existing 2.5mm cellphone headsets than an mp3 player with "standard" headphones.

But if you want to listen to mp3s thru your headphones, you have to put a 2" adapter plug sticking out at a right angle from the Z which will only cause unnecessary wear and tear.

I found these (seemingly) nice 2.5->3.5mm adapters which include a short length of wire between the jack and the plug and with a right-angle jack on the 2.5mm side.

for the UK
http://www.beststuff.co.uk/headphone_accessories.htm

US/Int.
http://www.seidioonline.com/ProductDetails...Code=CBA-25M35F

or
http://pc-mobile.net/treo600.htm (cheaper, but higher min. order)
this one should be fine even tho it says for the treo


*disclaimer: I haven't picked up one/any of these yet, so I can only assume they would work and not cause any impedence issue with auto-sensing of the I/O for the headphone/mic jack.

enjoy....
nevarrie
Since I have already lost two adapters I am looking at getting headphones that already have the 2.5mm adapter. These are some of the ones I am looking at:

JAVOeBuds - 2.5mm Retractable Stereo Earphones (black)
Seidio Treo 2-in-1 Over-the-Ear Headset
Seidio Treo 2-in-1 Backphone

I have not got any of these yet but plan to get something around christmas time. If anyone has tried any of these or something like it let me know.
GoLinux
After trying a 2.5mm male --> 3.5mm female adapter from Radio Shack ($3.99) I decided to return it and make a cable adapter myself. The adapter is way too bulky and too long. It feels like it could disembowel the SL-6000L if you accidentally push or pull it sideways....

I will "sacrifice" a cheap cell phone earpiece I got at Wal-mart ($1.00!!!!) to re-use the 2.5mm plug and few inches of the wire attached to it.

I exchanged the Radio Shack adapter for an in-line 3.5mm phone jack (RS catalog number is 274-274, $3.99 for a pair), so I just need to make three solder joints and I'm in business.

Once I do it I'll try to post a picture here. It will look very similar to the Hama cable adapter.
The cell phone earpiece plug is angled and the smallest I have ever seen. It will put almost zero strain on the SL-6000L socket. The in-line phone jack is a little on the bulky side (don't understand why they made the case so big....), but at least is at one end of the wire.

Total cost: $3. biggrin.gif
saakmotu
I got the one from Seidio and it's perfect.. although, it costs a little more, especially once you factor in shipping charges... I got 2 since it made no sense to pay a shipping charge what was 100% of the item price... this way, at least, it's only 50%... small consolation.

seems as tho the link went bad/changed...
here it is again
http://www.seidioonline.com/ProductDetails...de=ADA%2D25M35F

here's a pic with it next to a ruler (I took the pic with the zaurus cam, it wasn't possible to show it with the Z now was it?)

the only "problem" is that it could be easy to lose, but that would be true for any adapter (also why I bought 2)

again,,, _WHY_ did Sharp chose the 2.5mm jack.?.. :-P
GoLinux
Nice, I'll try to make mine look like that laugh.gif

I guess the main reason for Sharp to go with a 2.5mm socket is the corporate market they were targetting. It makes the Z directly compatible with cell phone earpieces.

Heck, the Tungsten C not only has the same socket but, unlike the Z, does NOT have the autoswitch function to go from micro/speaker in mono to headphone in stereo. You are stuck with mono sound AND an adapter.......

Let's be thankful for Sharp foresight biggrin.gif
Stubear
<deleted>

Mistaking thought that 6k had the same headphone jack as Cxx0 zaurus, but my manual say my zauarus has 3.5mm

Stu
gramps
Anyone found a good set of headphones for the 6K that have the 2.5mm plug? I would prefer not to have to use an adapter if I don't have to. All the ones at my local Best Buy have the 3.5mm plug.
johnw
These are 2.5mm: JAVOeBuds

There is a group discount purchase in progress for these. For details go here.
neuroshock
Greets All,

I was Christmas shopping in Office Depot this evening and I found an additional solution to the ones listed above. This particular solution is a pair of stereo headphones from HP. I went over and paid my 2.5 cents per copy to make photocopies of the bubble pack front and back because I couldn't immediately discern what the part number was.

Basically they are simply a pair of normal stereo earphones, (earbuds), with a 90 degree 1/8" (3.5mm)female to 3/32" (2.5mm) male adapter included right in the bubble pack. I had the manager scan the price for me and he said it sold for $9.99. I didn't actually buy it because I had already ordered the adapters from Siedo mentioned earlier in this thread. I obviously can't vouch for their sound quality but other than including the adapter they look fairly run-of-the-mill. For $9.99 it seems a good value regardless of the quality if low end earbuds don't bother you too much.

Here's every word of what appears on the package:

QUOTE
(On the front side):

HP iPAQ
Stereo Earphones
hp invent
All HP iPAQ Series
Listen to your favorite tunes

(On the back side):

hp invent
The HP iPAQ Stereo Earphones allow you to hear your favorite tunes on your HP iPAQ or MP3 Player for use in the gym, running or walking. The HP iPAQ Stereo Earphones offer peace and quiet wherever you go, and eliminate head and neck bands, saving your hair.
.  Includes 3.5mm to 2.5mm adapter
.  Super lightweight, mini ear-bud design
.  Comes with a 1-Year Warranty

copyright 2004 HP Corporation.  All right reserved
The product is marketed and supported by Belkin Corporation. For warranty support or technical support go to www.belkin.com or call Belkin at 1-866-435-7100

Belkin Ltd. 1 800 235 546
West Gosford, Australia

Made in China

P46327

(Barcode and UPS code):
F8U0106-HP
22868 52229

It is probably reasonable to assume since they are manufactured by Belkin that Belkin would have the same product available under their name plate also. Hopefully this has given you some place to start Googling from at any rate.

Best Wishes All,

-NeuroShock
saakmotu
Seidio changed the product code and hence the link is now outdated.

updated url
http://www.seidioonline.com/ProductDetails...de=ADA%2D25M35F
eji
If you'd prefer an adapter and not earphones, go to:

http://www.beststuff.co.uk/headphone_accessories.htm

... then scroll down to "Best stereo headphone adapter lead 2.5mm plug to 3.5mm socket"

... and this is what you'll read:

Hama Stereo Headphone Adapter 2.5mm to 3.5mm

Some devices have 2.5mm jacks (PDAs, some phones etc.). This adapter allows you to plug a set of headphones with a more common 3.5mm jack into a 2.5mm socket. High quality headphone adapter. The advantage of the short leads is that you can plug and unplug headphones without putting strain on the source socket. Stereo adapter.

£4.49 - This is the price you pay no VAT or delivery charges to add within the UK.

I bought this and it should be arriving when my wife's parents visit from the UK on Jan 26. I had looked at the Radio Shack adapter when I was in the US for Christmas, but it stuck out way too far and I had read of some problems with it (i.e., having to leave it slightly "out" to get the stereo signal). This one is at a right angle and has a small lead.

<EDIT>Nevermind... that Seidio adapter is almost the exact same thing. But if you're abroad the Best Stuff.co.uk adapter might be a better option.</EDIT>
Mr.Mole
QUOTE(nevarrie @ Jun 22 2004, 03:02 AM)
For the fact that I have already lost my first adapter from Radio Shack I am looking at get headphones like the JAVOebuds.

Anyone else find any other headphones that already have the 2.5mm plug so I do nto have to carry an adapter?
*


www.boxwave.com's minibuds
speculatrix
I'm now on my second, not quite so broken 6000 as my original newish one, and I have the same problem.... when I plug in the 2.5->3.5mm adaptor and my headphones I only get mono sound, and when I "dmesg | tail" it says
CODE
wm9712_update_jack_state: HP jack state changed (Jack=1,Mic=1)

when I unplug I get
CODE
wm9712_update_jack_state: HP jack state changed (Jack=0,Mic=0)

I have tried shorting out the headphone jack on either channel and watching the logs but don't see anything.

I have tried just plugging in the adaptor without the headphones too.

I can't believe two zauruses have the same fault!

Is the headphone circuitry detecting a very specific resistance?

I really really want to be able to use my Z as an in-car mp3 player with external USB hard drive, so stereo sound is vital!
koen
QUOTE(speculatrix @ Jul 6 2006, 03:23 PM)
I'm now on my second, not quite so broken 6000 as my original newish one, and I have the same problem.... when I plug in the 2.5->3.5mm adaptor and my headphones I only get mono sound, and when I "dmesg | tail" it says
CODE
wm9712_update_jack_state: HP jack state changed (Jack=1,Mic=1)

when I unplug I get
CODE
wm9712_update_jack_state: HP jack state changed (Jack=0,Mic=0)

I have tried shorting out the headphone jack on either channel and watching the logs but don't see anything.

I have tried just plugging in the adaptor without the headphones too.

I can't believe two zauruses have the same fault!

Is the headphone circuitry detecting a very specific resistance?

I really really want to be able to use my Z as an in-car mp3 player with external USB hard drive, so stereo sound is vital!
*


Have you tried with 2.6.17 + latest ASoC?
the_oak
My Javo ebuds have stereo sound with true stereo separation, not just mono playing on both sides. Maybe the problem is with the adapter?

EDIT: by the way, glad you got a working 6000 back. smile.gif
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