Elecraft KX1 Manual - Manual (Page 23)

22
E
LECRAFT
Use a discarded component lead to ground the case of the crystal
as follows:
_ Solder one end of the lead in the ground hole near the edge of
the board to on the left side of the crystal.
_ Tin the top of the crystal nearest the lead with a small amount
of solder. Keep the soldering time to 3 seconds or less to
avoid overheating the crystal. Allow the crystal to cool if you
need to apply heat more than once. It often helps to tin the
case more quickly if you lightly scrape the metal with a knife
or a screwdriver blade first.
_ Bend the ground lead so it lies flat against the top of the
crystal where it is tinned and solder it to the top of the metal
case.
Install white LED D1 as follows:
_ Locate the flat side on D1’s flange.
_ Position D1 over the outline in the lower left corner of the
board with the flat side of the flange toward the corner of the
board.
_ Bend the leads so that when they are inserted through the
solder pads, D1 rests against the board as shown in Figure 9.
Note: This LED is provided to illuminate your note pad or log
while operating in the dark. The slight downward angle will
help direct the light down onto the table top.
_ Check to ensure that the flat side of the flange is toward the
corner of the board. D1 will not work if it is installed
backwards.
_ Solder and trim both leads.
_
Figure 9. Installing LED D1.
Turn the bottom face up with the outline for J1 in the upper right
corner.
Position J1 (DC power connector) on the board so the three tabs
on the bottom of the jack fit through the slotted solder pads.
Solder one of the tabs and then check the position of the jack. It
must be centered within the printed outline on the board with the
connector opening parallel with the edge of the board. Be sure the jack
is resting directly against the board. There must be no gap between
jack and the board. If necessary, reheat the soldered tab and adjust the
position of the jack.
When you are satisfied with the position of the jack, solder the
remaining two tabs, then recheck the first tab be sure it is properly
soldered.