Vectronics VEC-821K, Руководство пользователя

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VEC-821K Instruction Manual Super CW Filter Kit
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the main board. The lip and horizontal pins point toward the
back of the board. Make sure the two headers horizontal pins
are in line. Solder the pins on the main board.
16. Push the Switch PCB onto the horizontal pins till the PCB is in
contact with the plastic lip. All the pins should be coming out of
the holes on the Switch PCB and not beside the board on either
side. Carefully solder the pins making sure that the components
on the main board are not damaged by the soldering iron body.
17. Prepare eight (8) 3" wires, by cutting all four (4) 6" wires
provided in the kit.
18. Using the wire strippers, remove a 1/4" piece of insulation from
each of the 8 pieces of insulated wire.
19. Take one 3" piece of insulated wire and insert one end into the
hole silk-screened
INPUT
+on the circuit board. Solder in place
and trim the excess lead.
20. Take another 3" piece of insulated wire and insert one end into
the hole silk-screened
G
on the circuit board. Solder in place
and trim the excess lead.
21. Take another 3" piece of insulated wire and insert one end into
the hole silk-screened
SPKR
+on the circuit board. Solder in
place and trim the excess lead.
22. Take another 3" piece of insulated wire and insert one end into
the hole silk-screened
G
on the circuit board. Solder in place
and trim the excess lead.
23. Locate the battery snap.
24. Insert the
RED
wire of the battery snap into the hole on the
circuit board labeled, POWER + . Solder in place and trim the
lead.
25. Insert the BLACK wire of the battery snap into the hole on the
circuit board labeled - . Solder in place and trim the lead.
26. Locate both LM747 op amp integrated circuits. Insert them into
ic sockets for U1 and U2. Please refer to the "Parts Placement"
section, Figure 1 for proper orientation. Be sure not to bend any
of the pins underneath the ic body, and that all pins are inserted
into the socket.
27. Locate the LM380 audio amplifier integrated circuit. Insert it into
ic socket for U3. Please refer to the "Parts Placement" section,
Figure 1 for proper orientation. Be sure not to bend any of the
pins underneath the ic body, and that all pins are inserted into
the socket.
At this point, your kit assembly is finished and it's time to take a well-
earned break! You should have one washer and nut left. These parts
are to be used when the circuit is installed in an enclosure, so do not
discard them. When you come back, be sure to give your work a close