This completes the first phase of assembly. The aspirator will be mounted after jumpers have been placed and the board is checked for proper operation.
At this point, components, their location, and proper orientation should be double-checked. Soldering must be carefully inspected, preferably with a lit magnifier. If there are any suspicious solder connections, reflow the solder and check the result. Do this until you are satisfied that the board is OK.
|Board checked and OK|