[Elecraft] KXV3 fails to switch on XV144

[DM4iM]

Elecrafters,
i need your help for this problem:

While our club's K3 switches on my external 2m-transverter,
my own K3 fails.

I checked for differences in config, found none.

XV1 ON
XV1 ADDR trn1
KXV3 nor
TX INH OFF


I suspect i killed something on the KRX3-module.

If i jumper XV144 for a non-Elecraft rig, i can work with the
transverter .

HW?


-- 

73,
Martin DM4iM