Audio Jacks. - Electronic Circuits Projects Diagrams Free

lord loh. · 2nd April 2008, 08:21 PM

Can I use a 3 pole audio jack in place of a 4 pole audio jack?

I would like to connect a nokia hands free port to a PC via two mono jacks...

The Nokia Pin out is
Tip -> Speaker+
ring1 -> mic+
Ring2 ->speaker -
sleev -> mic -

If I tie both - together, cant I insert a 3 pole jack in place of a 4 pole jack... The trouble is that I am not able to find 4 pole jacks.

Regards...

CynicalMan · 2nd April 2008, 10:27 PM

If you put the grounds together, you can use a stereo jack.

tip-> speaker +
ring-> mic +
sleeve-> both grounds.

If you want a jack with 4 connections, use an XLR.

audioguru · 3rd April 2008, 12:45 AM

Measure the resistance of the source to see if the speaker - is the same as the mic -. If they are different and you short them together then something might blow up.

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2nd April 2008, 08:21 PM	(permalink)
lord loh.	Audio Jacks. Can I use a 3 pole audio jack in place of a 4 pole audio jack? I would like to connect a nokia hands free port to a PC via two mono jacks... The Nokia Pin out is Tip -> Speaker+ ring1 -> mic+ Ring2 ->speaker - sleev -> mic - If I tie both - together, cant I insert a 3 pole jack in place of a 4 pole jack... The trouble is that I am not able to find 4 pole jacks. Regards... __________________ Bharath Bhushan Lohray. M.Sc. Electronics.

2nd April 2008, 10:27 PM	(permalink)
CynicalMan	If you put the grounds together, you can use a stereo jack. tip-> speaker + ring-> mic + sleeve-> both grounds. If you want a jack with 4 connections, use an XLR. __________________ If you aren't afraid of life then you aren't paying close enough attention.

3rd April 2008, 12:45 AM	(permalink)
audioguru	Measure the resistance of the source to see if the speaker - is the same as the mic -. If they are different and you short them together then something might blow up. __________________ Uncle $crooge