Re: K1 no power out B2

Posted by Mike Morrow-3 on Jun 09, 2012; 9:23pm
URL: http://elecraft.85.s1.nabble.com/K1-no-power-out-B2-tp7557347p7557362.html


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 <[hidden email]>
>Sent: Jun 9, 2012 2:05 PM
>To: [hidden email]
>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
>
>--
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