[Elecraft] K3 problem

[Jim Leder]

Just got back from visiting a friend who has an older K3. After fussing around with RS232 cables, we finally got the firmware updated, it was quite old. But, BEFORE we did the update we knew we had the problem (reason we did the update). So, the update had no bearing on what is wrong
Problem is the VFO B knob has NO effect on anything. He can’t run split by using it even though he is able to do A>B ok. To change the B frequency, he needs to do A/B , change it, then A/B back again. Doing the split will allow it to transmit what’s in B, he just can’t change it with the VFO B control.
Related to this is the inability to enter the config menu and scroll through the options.

Net is the VFO B control does nothing.

I suspect something to do with the alternate VFO encoder or one of it’s connections.

Opinions? Seems to me a visit back to the mothership.

Thanks.

Jim Leder … K8CXM