[Elecraft] K2 - Low resistance to ground checks on both control and front panel boards.

[Don Wilhelm]

  Mike,

What are you using to measure the resistance?  A DMM or an older VOM?  
Many older VOMs use enough voltage when measuring resistance to turn on 
semi-conductor junctions, and perhaps damage semiconductors - in other 
words, don't use that kind.

If you do not have a DMM, get one of the inexpensive ones from Harbor 
Freight if you want to "go cheap", they are adequate for the job.

If you are already using a DMM, then try reversing the leads - or take 
it out of auto-ranging and measure again.

You are mainly checking for shorts, so take note on the schematic that 
CB U6 pins 29 and 30 connect to nothing else on the Control Board, they 
do go to the RF Board connector, but if your meter is reading properly, 
and the U6 pin 29 and 30 inputs are not damaged, you should read a very 
high resistance.

73,
Don W3FPR

On 6/28/2011 1:18 PM, vicki glover wrote:
> Guy, what have I messed up here?  How do I find out what's wrong and how do I fix it?  Please help!
>
>
> Control Board:
> U6-PIN 13 - 31.8K
>       PIN 14 - 28.1K
>       PIN 29 - 29.8K
>       PIN 30 - 29.8K
> U8-PIN  2 - 24.6K
>       PIN 15- 24.5K
>       PIN 16- 24.7K
>
> Front Panel Board:
> U1-PIN  3 - 19.5K
>       PIN  4 - 20.3K
>
> 73
> mike glover KB3QJA
>