[Elecraft] KX1 Newby Help!

[Burke Jones]

Don, Philip & Paul -

Thank you guys so much for the help!  It turns out I was confusing "infinite
resistance" with "zero resistance" - it looks like I am good to go ahead
with the next step.

I have a steady hand and I am good at following the excellent direction
provided by Elecraft - so with your occasional help, this project should end
successfully!

Again, thanks for the clear and patient explanations.

Burke Jones
N0HYD
Olathe, KS

On Mon, Dec 22, 2008 at 9:08 PM, Don Wilhelm <w3fpr at embarqmail.com> wrote:

> Burke,
>
> What do you mean by "nothing"?  I am going to guess that it means the DMM
> indicates the same as when you have nothing connected to the leads and the
> DMM is set to read resistance (correct me if I am wrong).
>
> If my assumption (guess) is correct, that is the indication for infinite
> resistance (i.e. an open circuit) for your DMM.
>
> Now - consider the meaning of the ">" indicator.  That is the symbol for
> "greater than".  Infinite resistance *is* greater than the value indicated,
> so if my assumption is correct, you have no problem.
>
> A DMM resistance reading that continues to climb usually indicates that the
> DMM current is charging a large capacitor.  As long as the lowest reading is
> greater than that indicated in the manual, no problem exists.
>
> Realize that at this point the resistance measurements are checking for
> shorts.(with the exceptions of the readings that are < (less than) 5k), so
> any measurement that is greater than the indicated value (to include
> infinite resistance = open circuit) passes the test.
>
> 73,
> Don W3FPR
>
>
> Burke Jones wrote:
>
>> Okay, I am a complete electronics "newby" - so please be patient.
>>  I have worked my way carefully up to page 26 on my KX1.  I have double
>> checked everything, but I may need to do it again.
>>  The problem is with the resistance checks.
>>  On U1 I have several pins that provide no resitance, by "no" I mean not
>> even zero - my DMM just shows nothing.
>>  On U3 pin 1 and pen 8 show nothing as well.
>>  This is true even if I touch the solder points on the bottom instead of
>> the pin holes or legs.
>>  Also when I check the diodes D2 and D3 the Ohms just keep getting higher
>> and higher.  In other words when I touch the banded end of the diode the
>> resistance just keeps increasing as long as the probe is on the lead.  Is
>> this correct?
>>  Any help would be much appreciated!  This is my first kit, and while I
>> know basically nothing about electronics I am good a physically constructing
>> things and I am careful in my work.
>>  Burke Jones
>> N0HYD
>> Olathe, KS
>>
>>
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