[Elecraft] K3 Sub Receiver problem with KSYN3A

[Jeff]

Hello,

 

My Dad picked up a K3 that is a late number 9xxx it had a sub receiver and
both synthesizers are the KSYN3A. A little history on the rig first,
Original owner bought as 100 watt kit and installed the sub receiver. Second
owner installed a couple filters on the main board and the antenna tuner
KAT3 and my Dad got from him. Anyway, my Dad and I were going through it and
could not get anything out of the sub receiver, set speakers to 1 and now we
get static so that's a good sign. 

 

Figured it was the settings so checked KRX3 and set it to Ant-BNC and hooked
up to the AUX BNC to the signal generator. Went through setup with K3
Support from Elecraft and still nothing. Checked all connections on sub
receiver and noticed that the Green LED on the sub KSYN3A was not lit like
on the main receiver KSYN3A. Swapped them and appears that the problem is on
the board because now I have a green light on the sub (originally main) and
nothing on the main (originally sub). Went to check syn status and it showed
PLL instead of SYN1 OK and SYN2 OK. No receive on main or sub.

 

I put them back the original way and main works but no sub Status says SYN1
OK and SYN 2 OK but no green LED light on the sub board. I ordered a new
KSYN3A for the sub so hope that works but still have no idea why no green
LED but says SYN2 OK.

 

Any thoughts on my long winded comment?

 

73,

Jeff