Mike,
I believe you may be counting the IC pins incorrectly.
Pin numbering on an IC starts with pin 1 - either a dot at pin 1 or with
a notch on the left end, pin 1 will be the leftmost pin toward you.
With pin 1 located at the left, closest to you, then count left to right
along the side closest to you (in the case of KX1 U1, the one on the
right next to you is pin 14) - now cross over to the pin directly across
from pin 14 (rightmost end of row away from you), and that will be pin
15 - the count continues from right to left on the side away from you.
73,
Don W3FPR
Mike M wrote:
> Hello -
>
> I just finished part 1 of building my KX1. When I made the resistance
> checks on page 26 I had three failures on the checks on U1.
>
> Pin 19 was supposed to be less than 5 ohms, but registered 5M. Pin 23
> and 24 were supposed to be greater than 10k, but pin 23 read 3k, and
> pin 24 was .2 ohms.
>
> I resoldered the joints on these pins and rechecked, with no
> improvement.
>
> The checks for U3 and the diodes were good.
>
> Any idea what I did wrong?
>
>
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