Hal my issue is the same whether I have the 40/20 or 30/17 board installed so 
it would need to be two crystals - one on each board. I guess that's possible.

I have another k1 with a 4 band board, but I'm hesitant to put that board in 
because I think its also possible that something on the rf board is frying a 
component on the filter board.

73
Joe

Hjalmar Duklæt <dukl...@broadpark.no> wrote:

I just had the same problem. It turned out to be the 22MHz crystal on the 
pre-mixer bandpass filter. Changed the crystal and that was that.
73 de Hal/LA4XX


On 12-06-09, Mike Morrow <k...@earthlink.net> wrote:

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_cr...@hotmail.com>
>Sent: Jun 9, 2012 2:05 PM
>To: elecraft@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.
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