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el_sl_assy_021918.pdf
Once all this is aligned and secured, place on a flat surface, and put a “small” tack between each contact
holder and the support.
Leave the support screw in place.
Next, position the
contact holder/support assembly
on the
paddle base
with the registration marks, and
lightly tack a couple of points on the ends. The female 2x2 header should be centered in the cutout. If all
looks good, tack both sides of the holders, and alternate back and forth between the two sides adding a
little more solder. Finish soldering all the pads, and then remove the support screw.
Next, solder the two 2-56
brass
nuts to the
paddle leaf holder
. Use the two 2-56 stainless steel screws to
secure the brass nuts on the side of the paddle leaf holder marked
“nuts”
, and solder the brass nuts to the
PCB.
The lock washer insures that the nut will be flush with the PCB when it is heated.
It is helpful to rub
the face of the nut on some scotchbrite or emery paper to clean up the surface contacting the PCB.
Next, position the paddle leaf holder with the nuts into the contact holder/support assembly as shown
below, flush with the top, bottom and paddle base assembly. And yes, it is supposed to be snug in the
support slot , to hold it in position while you solder. Tack one spot in place and check for alignment with the
registration marks, re-heat and adjust if necessary. Tack all the remaining pads, then finish soldering the
pads.
