Vectronics VEC-820KC - Manual (Page 4)

VEC-820KC Assembly Manual Super CW Audio Filter
4
STEP-BY-STEP ASSEMBLY
To install your filter in the VEC-820KC matching enclosure follow these
instructions (read all instructions before beginning ... take your time):
Installing the Circuit Board
Please refer to the Parts Placement diagram for hardware locations.
! ! 1. Find the front and the rear panel decal; separate using scissors. Put the
rear panel decal on first. This is done by: a.) Remove all debris and
oil from the chassis. This should be done using a piece of cloth and
alcohol. b.) Remove the crack and peel to expose the adhesive. c.)
Place the decal on the rear panel without securing it completely. d.)
Gently rub the alignment circles and/or rectangles with your finger--if
the circles and/or rectangles are centered in the enclosure holes (also
check the corner alignment marks) secure the decal by rubbing and
removing all air bubbles. e.) If the alignment circles and/or rectangles
are not centered, adjust the decal accordingly then secure. f.) Use a
penknife, or small Exacto
TM knife, to cut away the unused edges and
cut out the component holes. g.) Repeat this procedure for the front
panel.
! ! 2. Desolder and remove the RED battery snap lead from the VCC point
on the circuit board. Make sure the hole where the RED battery snap
wire was is completely clear of solder.
! ! 3. Insert one end of a 1 1/2" insulated wire into the hole at the Point
labeled VCC on the circuit board. Solder in place and trim the excess
lead.
! ! 4. Place the bottom chassis in front of you with the round hole in the
front panel facing you.
! ! 5. Install the two L-brackets on the chassis using two of the 4-40 x 3/16"
machine screws (1). The longer side of the L-bracket must be
connected to the chassis using the two holes centered on each edge of
the enclosure. Refer to the diagram on the previous page for location
and orientation.
! ! 6. Mount the circuit board in the chassis. Remember, the large slide
switch already wired to the board goes into the slot next to the round
hole in the front panel. Mount the board a follows: a.) Insert the 4-40
x 1/2" machine screws (2) into the holes in the chassis, then sit the
chassis on the table so the screws do not fall out. b.) Slip one #4 x
3/16" spacer (7) over each screw. c.) Sit the board down onto the
screws, making sure the knob on the large slide switch is inserted into