Elenco Surface Mount Technology Kit - Manual (Page 9)

ASSEMBLE LARGE COMPONENTS TO PC BOARD
r Place the buzzer on the
PC board with the white
center facing outward
and solder to the PC
board at the points
shown in Figure 10.
r Strip 1/8” of insulation off
both ends of the short
red wire. Solder the wire
to the buzzer and the PC
board as shown in
Figure 10. Be sure the
wire is on the center
portion of the buzzer and
not on the outer rim.
r Solder the red and black
battery snap wires to the
PC board as shown in
Figure 10.
r Place the dimple switch,
domed side upward, on
the PC board as shown in
Figure 11. Be sure none
of the contact points
touch the lead in foil to
the center ring of the
switch foil.
r Peel one layer of the
protective backing off the
double sided Scotch
tape. Place the tape over
the dimple switch as
shown in Figure 11.
Press the tape to the PC
board and peel off the
remaining
protective
backing.
r Stick the 7/32” spacer onto the dimple switch
as shown in Figure 12.
Connect the 9V battery and push the spacer.
The buzzer should sound and the LEDs should
flash as described in the Introduction. If this
does not happen, refer to the Troubleshooting
section. The unit should be working before
completing the final assembly.
-8-
Figure 11
Figure 10
Red Black
Battery Snap
(+)
( )
Short Red Wire
Solder buzzer to
the PC board at
these points.
Lead in Foil
Contact
Points Tape