[ICOM] IC-2100 audio

[Mike Reublin NF4L]

Do you mean the three lines that radiate from the solder pad to the can of the mic? Short of removing the mic from the board, I don't understand how you would inspect/remedy anything. I'm unwilling to take the mic off the board.

73, Mike NF4L

> On Apr 26, 2015, at 9:04 AM, GGLL <nagato at madryndigital.com.ar> wrote:
> 
> Take a look at:
> 
>> http://www.okokchina.com/Files/uppic/Electret%20Condenser%20Microphone755.jpg
> 
> you'll see, despite the terminals could be wire or pad for soldering, one terminal is connected to the AL case, but it is a mechanical contact and I've seen many failing due to poor contact.
> Sometimes i've solved the problem pressing the case to the track with a needle or thin solid wire.
> 
> Regards
> Guillermo - LU5WE.
> 
> El 25/04/15 a las 21:04, Mike Reublin NF4L escibió:
>> Guillermo -
>> 
>> I opened the mic and I don't see anything that looks like a ground
>> ring, just the 2 pins soldered on the back side of the board. The
>> solder joints look good. It's an HM-133S mic.
>> 
>> 73, Mike NF4L
>> 
>>> On Apr 25, 2015, at 7:15 PM, GGLL <nagato at madryndigital.com.ar>
>>> wrote:
>>> 
>>> Electret Condenser Mike, check the ground ring at the mike
>>> cartridge itself.
>>> 
>>> Regards Guillermo - LU5WE.
>>> 
>>> El 25/04/15 a las 16:57, Mike Reublin NF4L escibió:
>>>> What is an ECM?
>>>> 
>>>> Mike NF4L
>>>> 
>>>>> On Apr 25, 2015, at 2:11 PM, GGLL <nagato at madryndigital.com.ar>
>>>>> wrote:
>>>>> 
>>>>> Certainly. Could be also a problem with the ground ring in the
>>>>> ECM element.
>>>>> 
>>>>> Regards Guillermo - LU5WE.
>>>>> 
>>>>> El 25/04/15 a las 13:51, Mike Reublin NF4L escibió:
>>>>>> The IC-2100 is my desktop rig, never been mobile. I get
>>>>>> frequent reports of broken crackly audio that sounds like an
>>>>>> intermittent mic cord. I've put the cord in a tester and
>>>>>> wiggled and pulled it, with no indication of fault. Anybody
>>>>>> have any hints or kinky about solving this?
>>>>>> 
>>>>>> Is there a possibility of a problem with the jacks in the mic
>>>>>> or the rig?
>>>>>> 
>>>>>> 73, Mike NF4L
>>>>>> 
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