I don't remember the resistor values, but I will see if I can find them  basically what happens is if you ground the mic up or mic down pins they do the standard mic up and down functions, however if you  ground those lines through  two different resistors you get the 4 functions, 2 for each of the up and down lines.  the easiest way to find thd the values is to put a meter on a mic between ground and mic up or mic down and try the function buttons, I would do this except I do not have access to a multi function kenwood mic. btw any kenwood multi function mic with the function keys will work for the test  even one from an old tmv7a or a kenwood ts2000  the values are the same only the style of mic and connectors have changed to my best knowledge

On Jun 18, 2012, at 1:21 PM, Mike Cozzolino wrote:

> hello butch, can you explain a bit more what kind of box you want for 
> your 4 mike buttons?  maybe i can help.  c u 73 mike w6quv
> 
> 
> 
> At 10:08 AM 6/18/2012, you wrote:
>> I went to the link someone posted yesterday, think it was myhamdables.com,
>> anyhow I wrote the guy and ordered a cross band repeat cable so I can tie
>> my 590 to my tmv-71a.  He charged $25 which I was pleased with.  I asked
>> him about building me a box so I could use 4 function mike buttons on my
>> desk mike.  I think someone here did that once.  Does anyone have info on
>> doing that, what pins, and what value of resistor for each function?
>> 
>> Thanks.
>> 73
>> Butch
>> WA0VJR
>> Node 3148
>> Wallace, ks.