KX3 PTT emitting CW sound

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KX3 PTT emitting CW sound

pu2clr
After one year far from my KX3 I tried to use it today and a had the following problem:
When I press my PTT on USB or CW mode, the TX is activated (ok) but the radio emits a sound like a CW transmitting.   The PTT UP and DN buttons do not work but if I press both at the same time the TX is activated and a CW sound is emitted.
If I try to use VOX it also does not work.  I do not have another mic to test it right now (I am in the field). Maybe I forgot some configuration features or something is wrong on my KX3 or mic

Some suggestion?