04-18-2010 04:28 PM
So I guess using just any old Y-cable (1 male miniplug to 2 female miniplugs) like in the link below won't work?
04-18-2010 05:38 PM
Correct, that won't work.
The first problem is that the one you're looking at has just a 3-conductor plug (the combo is 4-conductor).
The second problem is that it just fans the conductors out in a Y. You need an adapter which splits the audio to one female and the mic to the another female.
04-18-2010 05:56 PM
Thanks a lot bananaman!
Now, the question I've been waiting to ask. I sometimes need to record output coming out of the computer. With my T41p, since it has 2 separate miniplug ports (1 for out, 1 for in), I was able to use that Y-cable I told you about to plug into the T41p out. Then, one fork would go to my headphones so I can listen to what I'm recording. The other fork would connect to a male-to-male miniplug wire which would connect back into the T41p in. This way I can record stuff that I play on my computer.
Now with the T410s, I would obviously have to do it a little differently. I would use that iPhone Y-cable and plug into the T410s miniplug port. Then, the out part of the iPhone cable would connect to my Y-cable. One of the forks on my Y-cable would go to my headphones. The other fork on my Y-cable would connect to a male-to-male miniplug wire which would loop back and connect to the in part of the iPhone cable.
This would work, right? In effect, I'm assuming that attaching the iPhone cable on the T410s would be the equivalent of my T41p setup (since it has 1 in and 1 out, stock), except it just doesn't look tidy like the T41p.
04-19-2010 08:22 AM
Yea I know, but there is no other way to do it. So I guess that 1 combo port on the T410s can send out and receive in audio signals simultaneously?
06-18-2010 11:26 AM
I designed this adapter for use with my customers and the ThinkPads we sell (I'm a Lenovo Reseller). It's a 4 pole male splitter to stereo female (headphone) connector and mono female (microphone) connector. My customers NEED to use standard mics, and this works perfectly.
08-07-2010 04:22 AM - edited 08-07-2010 05:07 AM
I can not record using the combi connector ( W510 W7 )
Why did Lenovo not offer a line in like all PC's have?
Do splitter cables realy work? if so I have a wrong cable?
There is no setting to select the combiport only the internal micophone is shown.
I have to use an external USB sound plug as line input now but that is a step down in quality .
How does the Audio system detect when this external input is used and the internal microphone has to be muted? When I connect the 4-pole plug the internal mike just stays open.
I have made a cable splitter using a 4 pole 3.5mm jack wired out to 2 x 3.5mm 3-pole plugs.
Audio out : R to the tip and Audio out L to the first ring just like a normal 3 pole 3.5mm for a headset Left - right and ground. The extra 4th ring must be the micrphone input logicwise.
But it wil not pick up any signal the internal microphone keeps open.
Is there any special setting to this cable splitter that i have missed except for the special 4 pole 3.5m jack?
01-27-2011 12:48 PM
at JCvO: your pinning is the wrong one I assume.
In my T410 the 4-pin Audio pinning is (counted from Tip):
left ear - right ear - Gnd - Mic
So the MIC is on the most far outer end. Usual Plugs have their body there. It makes the wiring rather difficult. Because shielded cable outer shield can't go on that usual position but shall go on the 3rd ring from tip.
This kind of silly cabling is also used from iPhone. The Nokia pinning is different and has the more logical pinning left - right - Mic - Gnd. So you cant use Nokia or Video camcorder adapters on the Lenovo or iPhone 4-pin audio jack.
For a pure headset that doesn't matter at all, as the ground on the 3-pin plug covers both MIC and GND positions.