XV-144--Not switching to TX

classic Classic list List threaded Threaded
1 message Options
Reply | Threaded
Open this post in threaded view
|

XV-144--Not switching to TX

Phillip Buckholdt
Hi all

With all the traffic abt the K-3, I think my help request got lost.
So far, have spent 3 days trying to get this silly thing to work.
     Had a problem at the start of alignment.  K5 was energized all the time
in the tx mode. Redid some solder connections on the front panel board and
cured that problem.  Did the LNA setup and peaked inductors, and receive is
fine.
I have the K60XV and, setup the XV as per page 5 in the manual. I setup my
K-2 for the XV-144 as TRN 2 but, it is not turned on by the K-2. My XV-50 is
TRN 1
      I setup the XV-144 per page 7 so I could do tests. the XV turns on
with S-1 but will not go to the tx mode with Key in grounded.. Tried
grounding the 8R/key line up to U-1, Pin 27 and no tx. Grounding the
collector of Q-2 keys relay K-5.  Sounds like U-1 is bad but swapped working
front panel board from my working XV-50 and have the same problem.

     RX on my 144 is fine. Can't find a problem on the RF board.  Help,
don't have much hair left.  Have to mow the yard while we have sunshine.
Does anyone have any ideas?.

              Thanks Phil
                           K8MBY


_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com