Those are for mechanical attachment- notice there is not a copper pad there.
Quote:
Originally Posted by DRONE
The ones at 7 o'clock (pic. #3) look like the solder in the holes are missing( no flow thru).
The 1 in the 2nd pic. at 11 o'clock again no flow thru. solution would to be to re-solder them. In pic. #1 apply a solder wick to the big blobs to bet them down to correct size
the bigger the blob the better the job will not work on circuit cards
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