[Elecraft] K2 RF board resistance check - RYCOM

[Charles Vollum]

After much searching I've narrowed the location of my problem to one of 
C207's pads.  This pad connects to K10 pin 10 and U1 pin 17, and shows 
about 6 ohms to ground.  Cutting both traces still leaves this 
resistance unchanged.  I've put some closeup photos of the pad from top 
and bottom on the web at
   http://xsw.com/k2/c207

I don't see anything funny about the hole or it's plating, but 
something is obviously going on.

Next, I need to know how to fix this, so that I can get on with 
building my kit!  And I suppose that understanding what exactly is 
wrong will be the key to fixing it, unless a brute force solution like 
drilling out the hole is used.

Any suggestions?

73,

Charles  N7BPT

On Friday, July 25, 2003, at 08:19 AM, Charles Vollum wrote:

> I'm building K2 s/n 3632, and I've just reached the RF board 
> resistance checks on page 36, last step.  All are fine except for U1 
> pin 4 (K13 control.)  Instead of >20 k, I have 500 ohms.  All the U1 
> relay drive pins show about this same resistance.

----
Charles Vollum
http://xsw.com/boojum -- Boojum, a trailerable offshore tug yacht