[Elecraft] [K1] RF Board Resistance Checks

[Bob Molloy]

Hi,

 

I'm up to page 29 in the manual and doing the first resistance checks on the
RF board. I have problems with these 4 test points:

 

P1 pin 16

P1 pin 17

U4 pin 6

U4 pin 7

 

My DMM sometimes shows resistance on these points, then it climbs until it
indicates an open. Sometimes it just shows infinity. I've checked for solder
bridges, unsoldered pins, etc. Actually took pictures of the top and bottom
of the board so I could look at them full-screen on the PC. (The pictures
are here: http://www.kd2uj.com/Telegraphy2/default.html)

 

The other 9 test points seem to be OK.

 

The meter is an "Equus 3320 Auto-Ranging Digital Multimeter." Bought it on
Amazon.

 

Can anyone help?

 

Thanks,

Bob

KD2UJ