[Elecraft] K2, MD-2 MIC AND MFJ-434 VOICE KEYER

[Chris Page]

Is anybody using the K2 with the MD-2 mic and the MFJ-434 Voice 
Keyer, please?

I borrowed an MFJ-434 Voice Keyer for the weekend to help my wife 
June (M0BUE) play in the ARRL DX SSB Contest as W4/M0BUE, but cannot 
get it to work with the K2 and MD-2.  I have tried changing the 
various jumpers inside the keyer but that doesn't seem make any 
difference.  

Does anybody know which of the three options (Yaesu, Kenwood or Icom) 
of the voice keyer I should use with the K2?

Could the problem be anything to do with the way the MD-2 mic plug is 
wired, perhaps not being compatible with the mic socket on the keyer?

Any help and suggestions will be appreciated by June.

Thanks and 73 de Chris, G4BUE (currently N4CJ in Florida)