Vectronics VEC-820KC - Manual (Page 5)

VEC-820KC Assembly Manual Super CW Audio Filter
5
it's slot. d.) Install the angled solder lug on the screw at the left rear
corner of the board. e.) Secure the board to the screws using four 4-40
hex nuts (3) and tighten.
! ! 7. Secure the large slide switch (SW1) using two 4-40 x 3/16" machine
screws (1) that came with the VEC-820K kit. Tighten the screws in
place.
! ! 8. Install the small slide switch (SW2) to the rear panel using two 2-56 x
3/16" black machine screws (4) and two 2-56 hex nuts (5). Orient the
switch so the black knob is extending out the back of the rear panel.
! ! 9. Install the 1/4" mono phone jack (11) as follows: a.) Slip the flat steel
washer (15) over the threaded end of the jack. b.) Install the threaded
end of the jack from the inside of the chassis, through the front panel
hole. c.) Position the jack so as it is shown in the Parts Placement
diagram. d.) Secure the jack to the front panel using the 9mm hex nut
(12).
! ! 10. Install the screw-type terminal board (10) into the horizontal slot on
the rear panel using two 4-40 x 3/16" machine screws (1) and two 4-
40 hex nuts (3). Install the terminal board from the inside of the
chassis.
Wiring the Enclosure
You must position the enclosure so the front panel is facing you. For the
following point-to-point wiring steps you will also need the VEC-820K manual
to locate some of the reference points mentioned.
! ! 1. Locate the insulated wire connected to Point A on SW1. Connect it to
the right solder lug on the terminal board. The right lug is the one
closest to SW2. Solder in place.
! ! 2. Locate a piece of 3" insulated wire. Cut a piece 1" long and remove a
¼" of the insulation from each end.
! ! 3. Connect the 1" insulated wire between the left most lug on the terminal
board and the angled solder lug located on the board. Solder both
ends of the wire in place.
! ! 4. Locate another 3" piece of insulated wire. Cut a piece 2¼" long and
remove a ¼" of the insulation from each end.