[Elecraft] Need K2 troubleshooting suggestions

Thu Dec 12 10:40:59 2002

Hi

The usual problem with the VFO is a poorly tined lead on T5. Also check all
of the varactor diodes to make sure they are the right ones and installed
correctly. Check Q18 is installed correctly.

Don Brown

----- Original Message -----
From: "Gil Bishop" <[email protected]>
To: <[email protected]>
Sent: Thursday, December 12, 2002 7:52 AM
Subject: [Elecraft] Need K2 troubleshooting suggestions

> Hello folks.
>
> Assembling K2 #3061 and just hit my first snag.  I'm at Alignment and Test
> Part II and attempting the BFO test.  Connected the internal counter to
TP2
> and got 0000.00.  Figured oscillator wasn't running, but touched the
counter
> probe to end of L33 and got a nice, stable 4913.50.  This all happened too
> late last night to start poking around beyond a cursory check for cold
> solder joints/bridges around the area of the BFO circuit.  My
> troubleshooting skills aren't great, usually tending towards the "shotgun"
> parts replacement approach.  So I was hoping y'all might have some
> suggestions on how you would approach this problem with a more structured
> troubleshooting methodology.  In addition to the internal freq counter, I
> have a DVM and a 50Mhz oscope available.  (Since I have the scope, I
haven't
> built the RF probe assembly but certainly will if it is of value.)  I'll
be
> diving back in tonight...if the XYL isn't too grouchy! hi
>
> Thanks and 73
> Gil
> k1gil
>
>
>
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