[Elecraft] K1 no power out B2

[Mike Morrow]

The only path through the KFL1-2 that is not in common use for both bands is the pre-mixer bandpass filter connections at P1/J6, where band 1 path goes through pin 1 and band 2 path goes through pin 2.  This suggests that you need to check the RF board from J6-pin 2 back to U7 pin 5, including the pin on the SA602 that is plugged in at the socket.  However, this path being open should also have degraded band 2 reception as well as transmission, though perhaps not asy markedly.

Mike / KK5F

-----Original Message-----
>From: AF6NI <astro_crazy at hotmail.com>
>Sent: Jun 9, 2012 2:05 PM
>To: elecraft at mailman.qth.net
>Subject: [Elecraft] K1 no power out B2
>
>I just completed assembling a K1. It works fine on receive and transmits
>properly on B1 but not on B2. 
>
>I have two 2 band filter boards, a 40/20 that I've had for a while and a
>30/17 that I just built. Both work the same in the K1. I have full power on
>B1, but nothing on B2. The display shows 0.1 watts but my Elecraft W1
>wattmeter shows no output. As I said above, receive seems OK on both B1 and
>B2.
>
>Any suggestions gratefully accepted!
>
>Thanks and 73.
>Joe
>
>--
>View this message in context: http://elecraft.365791.n2.nabble.com/K1-no-power-out-B2-tp7557347.html
>Sent from the Elecraft mailing list archive at Nabble.com.
>______________________________________________________________
>Elecraft mailing list
>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:Elecraft at mailman.qth.net
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html