Sound Active Sensitivity Issue

[lamborgini8]

I finally got everything sorted on my scanner minus a few bits of wiring but I have a new issue with the sound active mode.

The microphone is in a rubber bung which is a perfect fit and is attached to the enclosure by that. The wires did come off of the microphone in the process but they are wired back on now... I just gave it a test run with the top of the enclosure on and everything almost as it will be once its complete and the sound active mode really has lost almost all of its sensitivity.

I used to be able to have the scanner at the opposite end of my room with my surround sound at about 25% and it would be constantly changing without pausing. Now it refuses to react at all, the pot is turned up to max and my surround sound at 90% which I can actually feel in my chest and its still not reacting... Yet I know sound mode is working because if I tap the microphone or the enclosure it reacts to it.

Any ideas? I am lost here.

[Jem]

Bit of a long shot but...

How hot did the microphone assembly get when you were soldering the wires back on? It could be that the headshell has melted from the heat.

Jem

[lamborgini8]

Bit of a long shot but...

How hot did the microphone assembly get when you were soldering the wires back on? It could be that the headshell has melted from the heat.

Jem

Im not sure about that because the soldering iron was only held on the microphone for a second or so.

[Xytrell]

That may be long enough to burn off some of the insulation in the voice coil. Any microphone should serve as a decent replacement.

[lamborgini8]

That may be long enough to burn off some of the insulation in the voice coil. Any microphone should serve as a decent replacement.

Argh, that's not good... It needs to be the exact same size because I cant be making any more holes in the enclosure. Everything has been bolted down to the bass place and enclosure now.

[fuzcub]

IF it's an electret microphone: did you solder the wires back on with the correct polarity?
On the back of the microphone there should be a bridge that joins one of the solder contacts to the shell of the microphone - this contact must be the negative one.
Also check that the sensitivity pot is wired correctly to the controller board.
Barney.

[Xytrell]

Polarity should be irrelevant since microphones output AC

[mixedgas]

If its electret , those have built in preamps and need juice to flow.

Steve

[Things]

If it is electret, than DO make sure its wired correctly. If not, don't worry, those little microphone modules can be had from anywhere very cheaply.