If you have a VLN1017A DTMF microphone from a MCX1000 and are looking for a schematic for it... look no further. It is available in the service manual, or, you can look at Tone/Logic Board and the Microphone/Beeper Board schematics. This board layout will make locating the proper jumpers a bit easier.
between microphone case and transmitter case/ground. The black and red leads provide the necessary control switching as shown in Figures 2 and 3. Men replacing another microphone with a Super Sidekick, consult the equipment manual for proper wiring of the connector (it connector is used) and