K2: KAT2 Assembly

[bdenley]

I am assembling the KAT2 auto tuner.  Everything is going OK but I am having trouble with the following statement:




'On the bottom of the KAT2 control board, locate a pad labeled "B". Just to the left of this pad you'll
see the round pad for pin 1 of U4 (LM358). (You'll know you have the right round pad if it's part of a group
of 8 pads, 7 of which are square.) Touch your DMM's (+) probe to this pad. Connect your DMM's (-) probe
to any ground point on the K2.'







Touch the probe to which pad?  T he one labeled 'B' or the little round one next to it?



Anyone?



Thanks

Brian KB1VBF
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Don Wilhelm-4]

Measure at U4 pin 1.

73,
Don W3FPR

On 2/16/2012 1:31 PM, [hidden email] wrote:

>
> I am assembling the KAT2 auto tuner.  Everything is going OK but I am having trouble with the following statement:
>
>
>
>
> 'On the bottom of the KAT2 control board, locate a pad labeled "B". Just to the left of this pad you'll
> see the round pad for pin 1 of U4 (LM358). (You'll know you have the right round pad if it's part of a group
> of 8 pads, 7 of which are square.) Touch your DMM's (+) probe to this pad. Connect your DMM's (-) probe
> to any ground point on the K2.'
>
>
>
>
>
>
>
> Touch the probe to which pad?  T he one labeled 'B' or the little round one next to it?
>
>
>
> Anyone?
>
>
>
> Thanks
>
> Brian KB1VBF
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Bill W4ZV]

Don Wilhelm-4 wrote

Measure at U4 pin 1.

Which is the small round soldered pad "southwest" of the "B" (BTW not upside down).  I just went through this myself.  Sometimes writer's directions remind me of my XYL's...she forgets that right and left depend on which way you're driving on the road!  Women drive by landmarks...men drive by road signs and the compass.  Women are from Venus...men are from Mars.  :-)

73,  Bill  W4ZV

[Rick WA6NHC]

Which is exactly why one should always use a pre-determined common frame of
reference.  In the fire service, it wasn't left flank of the fire, it was
the [N/S/W/E] flank.

On radios, it should start with something akin to "With the front panel
towards you".  Most of the time Elecraft has already taken care of this.

On the other hand, being well rested and clear in thought helps too.  ;o)

Rick WA6NHC

-----Original Message-----
From: Bill W4ZV

Sometimes writer's directions
remind me of my XYL's...she forgets that right and left depend on which way
you're driving on the road!  Women drive by landmarks...men drive by road
signs and the compass.  Women are from Venus...men are from Mars.  :-)

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[bdenley]

Thanks Don and to all who responded.



Brian KB1VBF



----- Original Message -----


From: "Don Wilhelm" <[hidden email]>
To: "b denley" <[hidden email]>
Cc: [hidden email]
Sent: Thursday, February 16, 2012 1:49:28 PM
Subject: Re: [Elecraft]   K2:  KAT2 Assembly

Measure at U4 pin 1.

73,
Don W3FPR

On 2/16/2012 1:31 PM, [hidden email] wrote:

>
> I am assembling the KAT2 auto tuner.  Everything is going OK but I am having trouble with the following statement:
>
>
>
>
> 'On the bottom of the KAT2 control board, locate a pad labeled "B". Just to the left of this pad you'll
> see the round pad for pin 1 of U4 (LM358). (You'll know you have the right round pad if it's part of a group
> of 8 pads, 7 of which are square.) Touch your DMM's (+) probe to this pad. Connect your DMM's (-) probe
> to any ground point on the K2.'
>
>
>
>
>
>
>
> Touch the probe to which pad?  T he one labeled 'B' or the little round one next to it?
>
>
>
> Anyone?
>
>
>
> Thanks
>
> Brian KB1VBF
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft 
> Help: http://mailman.qth.net/mmfaq.htm 
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net 
> Please help support this email list: http://www.qsl.net/donate.html 

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html