CF-29 internal mic mod

I promise, I'm not an idiot.
I ordere this mic (6mmx2.2 omni condenser mic, noise canceling), and the jst connectors (terrible little things to work with).

I can't get the mic mod to work. I get nothing in audacity or sound recorder.
I have played with the sound vol & mic vol, and get the squeal until adjusted properly.
when I flick the mic, I get some lower pitch squeal that dies out quickly but doesn't get recorded.
I just double checked to make sure I hooked the left pin (of tb) to gnd on mic,and the right pin to + on mic: I did.
Those connectors suck to work with, so I pulled out some jst leads from other old connectors, and used them in the 3 pin cons that I ordered.
I also had the same results trying to use thin coax (old wifi lead)

what did I do wrong?

 

can u measure 2V between the pins? had u connected the right pads on the mic to ur wire? does ur mic need an 3 pin connection? (this u can test with an old 3.5mm stereo headphone plug, which u solder to the mic)

 

I know you said you checked the + and - but you might try changing them. I hooked one up wrong and it did that. I changed the wires and it worked great.

You can hook them up on the bottom of the board at the jack. It's not as hard to hook up and you don't need those conectors.

 

There are 2 basic types of electret condenser microphones; 2 terminal and 3 terminal.

On a 2 terminal mic, the solder pad with a trace leading under the aluminum shell of the mic is GND, while the other one is SIGNAL OUT with B+ (Typically between 1.5 and 20V depending on design) applied across it to power the mic.

On a 3 terminal electret condenser mic, the solder pad with a trace leading under the aluminum shell of the mic is still GND, while the pad labeled (+) will be B+ to power the mic, and the pad that is not identified will be SIGNAL OUT .

A decent primer on Electret Condenser microphones can be found here:

Powering microphones

mnem
*Electro-Dwagon*

 

ok, first off

Thanks!

I don't know who's advice did it, but now I can hear my voice through the speaker. I think the "noise canceling" feature, and too small of a hole in the rubber, was killing any sensitivity. i used the mic out of a verizon ppc6600 carcas.
Now, my new problem: how do I use it. sound recorder and audacity won't record what's going through the mic. I can still hear my own voice from the speaker, even though it isn't getting recorded.

 

What is the size of the OEM microphone and or the mounting hole? How long of a wire will I need?
I would like to have a mic assembled and ready before I crack the case open.

Thanks

 

I'm gonna be a douch
http://forum.notebookreview.com/panasonic/240268-intern-microfon-cf29.html
it's all there (well, most of it).

 

Bump...
anyone know why i can hear stuff from the mic/speaker, but it's not recording?

 

What operating system?

 

xp sp2



(and this is filler to make the post longer than 10 letters)

 

Are you then using the Mic test in windows xp to test with, or are you using a third party recorder? There are some setting in the sound option have you checked them yet?

 

Posted on another general forum on another site, and got the solution....

Volume Control->Properties->Adjust volum for ( )Playback (*)Recording ( )Other->"OK"

Make sure the "Microphone" slider is the one that is selected....
Problem Solved!