Vectronics VEC-821K - Manual (Page 17)

VEC-821K Instruction Manual Super CW Filter Kit
• 010. Install the 1C socket at the U3 location on the circuit board. Be
careful to orient the socket correctly according to the "Parts Placement"
section Figure 1.
• 011. Carefully bend over the four corner pins of the socket against the
solder pads on the solder side of the board. Solder in place.
• 012. Locate capacitor C 1 (470uF). This is an electrolytic type capacitor
and will be marked "470uF" (actual value in uF). Carefully install C1,
be sure to orient the negative side of the capacitor properly. Please
refer to the section titled, "Parts Placement", Figure 1 for correct
orientation of C1. Once installed, then solder in place and trim the
excess leads.
• 013. Locate capacitor C9 (470uF). This is an electrolytic type capacitor and
will be marked "470uF" (actual value in uF). Carefully install C9, be
s u r e t o o r i e n t t h e n e g a t i v e e n d o f t h e c a p a c i t o r p r o p e r l y . Please
refer to the section titled, "Parts Placement", Fig ure 1 for correct
orientation of C9. Once installed, then solder in place and trim the
excess leads.
• 014. Locate the rotary switch, SW1. Insert the pins on the underside of the
switch into the circuit board holes. Ensure that all of the pins come
t h r o u g h the underside of the circuit board. Ensure that the switch is
mounted flush to the board and the switch shaft is parallel to the circuit
board. Solder in place.
•
015.
Prepare eight (8) 3" wires, by cutting all four (4) 6" wires provided in the
kit.
• 016. Using the wire strippers, remove a 1/4" piece of insulation from each of
the 8 pieces of insulated wire.
• 017. 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.
• 018. Take another 3" piece of insulated wire and insert one end into the hole
silk-screened GND2 on the circuit board. Solder in place and trim the
excess lead.
• 019. Take another 3" piece of insulated wire and insert one end into the
hole silk-screened GND3 on the circuit board. Solder in place and trim
the excess lead.