If Pins 7 and 8 are connected together (verify with ohm meter) but not
connected to the mic jack shell, you may wish to remove the front panel
assembly and look just above the Mic Jack at a component labeled "L4".
It should be a short. If it is broken, or other than a short, replace
it with a short length of wire to jumper it, or otherwise jumper pins 7
and 8 to ground nearby.
K3 product produced starting sometime in 2012 did not have this
component; earlier ones did and required the jumper.
73,
Lyle KK7P
...
I can operate the PTT on the back socket of the rig, and by grounding
pin 2 on the 8 pin mic connector.
On measuring the pins 7 & 8, which should go to ground, these seem to be
floating and not grounded.
I've just looked at the circuit and it shows these pins going to ground.
Any suggestions?
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
