Garrett,
Your results seem inconsistent to me like maybe a probe is on the wrong place.
You say B1 & B2 have continuity, and A1,2,3 to B1 is open, but to B2 is 10 ohms. Either B1 to B2 does NOT have continuity or both B1 & B2 will have continuity to A1,2 & 3.
Just an aside, the solder joint to the upper of the 3 transformer connections below point B1 does not look good. I would add flux and reheat that until it flows properly.
toggle quoted message
Show quoted text
On Aug 24, 2023, at 23:55, Garrett kc3unp <
kc3unp@...> wrote:
Hello fellow QRPers,
?
I am enjoying my QMX build, yet I’ve run into a snag on step 12 page 31 (the first specified continuity checks). I am hoping that someone has either seen/rectified a similar issue, or may have some tips on how I might move forward.?
?
I’m attaching a screenshot that shows the results of the continuity checks, after installation of the larger binocular transformer, and after having gone back to really ensure that the enamel has been properly scraped off prior to completing the solder joints. As you can see in the image, there is a low resistance, approximately 10 ohms conductivity showing between A and B.?
?
I have examined all of the other component connection points, and I’m not identifying any solder bridges, nor clippings, nor whiskers. As far as I can tell, my board doesn’t suffer any of the SMC bridges that have appeared on a few of the boards. I do plan to flip the orientation of D508 to make additional room for L508, but the polarity is already correct.?
?
Any tips are appreciated!
?
Thank you,
Garrett KC3UNP
<QMX Checks.jpeg>
