Thanks Don,
I shall try and you suggest and report back.
Tnx for the input
73 Paul G0WAT
Don Wilhelm wrote:
Paul,
The most likely problem is that you have a soldering problem or that
the KX1 microprocessor is not fully seated in its socket or perhaps
you have a pin bent out/under and is not inserted in the socket.
Examine closely again.
As for the soldering paths, make some continuity checks - take the KX1
out of its case and plug the KXAT1 into its headers. Check from KX1
U1 pin 2 to KX1 U1 pin 17, check from KX1 U1 pin 6 to KXAT1 U1 pin 13.
Then apply power and check for 6 volts to ground at KXAT1 U1 pins 4
and 14.
It is possible that you have a firmware chip either in the KX1 or the
KXAT1 which has a faulty output or input pin, but the best way to
confirm that fact is to substitute a new firmware chip. Make the
checks above first to see if you can find a faulty path.
73,
Don W3FPR
Paul Brice-Stevens wrote:
Hi,
I have built a KX1 with the 30m option al installed and its working
fine.
I then built the KX1 ATU and it appeared to go together OK and on the
first install it worked and the KX1 recognized it and I started to
play around with the various settings...then when I next switched it
on it gives the '---' message and won't recognize the ATU.
I have checked as per the Troubleshooting guide: -
- Connectors seems OK
- U1 appears insttaled OK
- No idea how to check whether U1 is defective...
So any ideas what and how to check next?
73 Paul G0WAT
KX1 #1043
_______________________________________________
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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
__________ NOD32 2167 (20070403) Information __________
This message was checked by NOD32 antivirus system.
http://www.eset.com
_______________________________________________
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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