Part
#9
is a 6-pin DIL (dual inline) header.
It goes in location J4.
Flip the board over, so that you can rest it
on the header, to hold it in place while
soldering.
On the top side, make sure that the header sits
fl
ush to the circuit board. If not,
fl
ip it back
over, and melt the joint while pressing down on
the circuit board, to snap the header into place.
Assembly Step 12 – Six-pin DIL ISP Header
[13]
[Alpha Clock Five Assembly Guide]
Solder just one pin to begin with.
Then, solder the other
fi
ve pins.