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Date: Sun, 15 Dec 2002 06:42:46 -0600
To: Ewan <e.kennedy at btinternet.com>, elecraft at mailman.qth.net
From: Tom Hammond =?iso-8859-1?Q?N=D8SS?= <n0ss at earthlink.net>
Subject: Re: [Elecraft] K2 control board R1 (50k pot)

Ewan, et al:

>K2 s/n 3080 control board part No e520011 agc threshold 50k trimmer.
>
>The supplied part (which looks different from photo in parts list) has 
>waisted legs which means that they only partially  pass thru pcb holes and 
>the pot remains proud of the board by about 5mm (1/4 inch).
>
>The mannual states that the pot must be seated flat against the board but 
>this is not possible. Has anyone else encountered this problem?

This pot should be seated until the SHOULDERS of the legs (not the BODY) 
seat flush against the PC board.

73,

Tom  N0SS

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From: "Bob - AG5Q" <AG5Q at attbi.com>
To: <tmorton at bigplanet.com>, "Elecraft" <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] Control Panel resistance checks?
Date: Sat, 8 Feb 2003 13:10:37 -0600

Hi Tom,

C7 will not affect the resistance readings.

The points you named are all very high resistance points and the actual
measured value will depend on the kind of meter you use (because the test
voltage applied will vary from meter to meter) and the orientation of the
test probes.

I measured 1.8 meg ohms on all these points on my K2.  The main thing is
that you don't have an unusually low value ( less than 100K ) which might
indicate a solder bridge somewhere. Looks like you're okay :-)

73/ Bob - AG5Q


----- Original Message -----
From: "C T Morton" <tmorton at bigplanet.com>
To: "Elecraft" <elecraft at mailman.qth.net>
Sent: Saturday, February 08, 2003 12:37 PM
Subject: [Elecraft] Control Panel resistance checks?


> Hello,
> Am doing resistance checks on control panel...manual page 20;
> The Capicator C7 is missing and being sent from company.
> I am not getting any reading from the following:
> U6 pin 13 or 14
> U8 pins 2,15,16
> Looking at the schematics, C7 is in AGC circuit and wonder if it somehow
> affects the other readings.
> Any suggestions? Went over board w/magnifying light and doesnt appear to
be
> any bad solder connections nor bridges.
>
> Help.
> Tom

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From: "Dan Barker" <dbarker at visioncomm.net>
To: "Elecraft" <elecraft at mailman.qth.net>
Subject: FW: [Elecraft] Building K2 Control Board
Date: Sun, 16 Feb 2003 07:26:42 -0500

It will work fine. But you MUST make some sort of mark on the "Real" pin #1
end, that's WAY more obvious than the notch. It may be 2 years or more (or
someone else doing it) before that chip is pulled and replaced, and if it's
put back "frontwards", well let's just say that would be bad<g>

Dan.

Bright Pink #1 in fingernail polish at the appropriate end might do the
trick!

-----Original Message-----
From: elecraft-admin at mailman.qth.net
[mailto:elecraft-admin at mailman.qth.net]On Behalf Of W2xn at aol.com
Sent: Saturday, February 15, 2003 11:19 PM
To: elecraft at mailman.qth.net
Subject: [Elecraft] Building K2 Control Board


Hi folks, this is my first post.  I am building the K2 Control Board and
mistakenly installed the 40 pin IC socket for U6 (the microcontroller) with
the
notch to the right instead of to the left.  I had trouble getting the pins
to

drop in and didn't want to bend them, so I ended up with the board turned
left
for right -- and put the socket in that way.  Will it make any difference?  

Thanks,
Fred w2xn

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