Vectronics VEC-1012K User Manual

Page 13

VEC-1012K Owner’s Manual

! ! Locate the 455 kHz ceramic filter. This is a small black cube with three

pins marked 55D or 55F. Note that it will fit only one way on the PC
board. Install at FL2 and solder.

! ! Find the 3.5 mm stereo mini-headphone jack. Install at J2 and solder all

pins.

! ! Find the RCA phono jack. Install at J1 and solder all tabs.

! ! Locate push-button power switch SW1. Install and solder all pins.

! ! Locate the 10.245 MHz crystal (frequency marked on case). Install at Y1

and solder.

The front-panel controls (tuning, squelch, volume) are mounted next. Before
installing these parts, inspect the type of potentiometer supplied with your kit. If
the pins are located on the front side of the pot, use the front set of mounting
holes on the PC board for installation. If the pins are on the rear, use the rear
set of mounting holes (see below). Also, using side cutters, remove the key tab
from the side of each pot prior to installation.

Rear pins use rear holes.

Front pins use front holes.

Nip off tab.

Locate the two (2) 10K potentiometers (B103).

! ! Install a 10K pot at R6 (tuning) and solder.

! ! Install a 10K pot at R16 (volume) and solder.

! ! Find the 100K pot (B104). Install at R10 (squelch) and solder.

Find the radio's oscillator coil (two pins, shielded, red plastic form). Before
installing, confirm that the coil's two pins and shield-can tabs are straight and
aligned with the mounting holes at L4.

! ! Install the oscillator coil at L4 and bend shield-can tabs over. Solder in

place.

Find the quadrature-detector coil (five pins, shielded, with black coil form).
Before installing, make sure all pins and tabs are straight and aligned with
mounting holes at L5.

! ! Install the quad-coil at L5 and bend shield-can tabs over. Solder in place.