I don't use this one, but are you sure it needs batteries?   The 590 
provides DC voltage   on one of the  pins of the mic jack and will power 
  Kenwood desk mics.   I would be surprised if you really need 
batteries, but who knows.

If it is like a previous Kenwood desk mic with preamp I used in the 
past,  there might be a pre-amp switch and LED.    If you connect 
without batteries, turn on the pre-amp switch, and the LED lights, you 
are good to go.

73, Steve KW3A

On 12/23/2014 5:46 PM, Mike Keithley wrote:
> Hello list,
>
> Does anyone here use the Kenwood MC60A desktop mic? I ordered one with my TS590, and I can't figure out how to insert the batteries to power the preamp. I got the PDF manual, and it talks about removing four screws to get at the battery compartment. But the bottom of my unit has six screws, four of which hold the rubber feet to the case. I took all the screws out except for the two screws holding what I think is the impedance switch but can't get the bottom plate off. The fit is so snug I can't insert the blade of a screwdriver to pry it off.
>
> Thanks for any help.
>
> So does anyone here use this mic?
>
>
>