Hi guys, thank you all for your replies.
@Hugh: My radio is a 706mkiig,?it shouldn't have the monitor functionality.
@davebb: I haven't tried the data socket yet.?Now I also write in the other forum.
@Brian, @davebb
Regarding the T/R relay (RL1 on the filter board?), what kind of checks should I do on the circuit? do you check the welds? check its driver Q1? or other? thank you
@Rick Robinson:?I've already done some checks on the screws, masses and cables. Which card in particular should I check?