Elecraft XV Assembly Manual for XV222 - Manual (Page 48)

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If you purchased the optional crystal oven with your transverter
(Elecraft part number E980076) install it now as follows:
Position the oven down over the crystal so the three leads on the
oven pass through the
+
,
-
, and NC holes in the PCB. The oven will
only go on the crystal one way.
Bend the leads over on the bottom of the RF PCB to hold the oven in
place, then tack-solder one lead.
Check to be sure the oven fully seated down over the crystal and
against the PCB. If necessary, reheat the soldered lead and adjust its
position.
Solder and trim all three leads.
Install pc pot R39, 1K ohm (102) near the center of the PCB.
Install trimmer capacitor C1, 4-15 pF, to the right of relay K1 at the
upper left part of the PCB. This capacitor has a blue dot to identify it.
Adjust the slug in L4A (red plastic frame) so it is flush with the top of
the coil form.
Install L4A near crystal Y1 on the right side of the PCB. Be sure its
plastic frame is resting against the PCB.
Install L19 near crystal Y1 on the right side of the PCB. Be sure the
plastic frame of the inductor is against the PCB.
Unscrew and remove the tuning slug from L1, the larger variable
inductor with a brown plastic frame. The tuning slug will not be used.
i
If you are not wearing a grounded antistatic wrist strap,
touch an unpainted, grounded object before performing the next
step. Once the temporary jumper across L1 is removed, Q3 is
particularly sensitive to electrostatic discharge (ESD) damage until
inductor L1 is soldered in place.
Remove the jumper and install L1 next to trimmer capacitor C1 in
the upper left quadrant.
Unscrew and remove the tuning slugs from the two remaining red
inductors L10 and L11. The tuning slugs will not be used.
Install the inductors near the upper left corner of the PCB. Be sure
the plastic frames of the inductors are resting against the PCB.
__L10 __L11
Locate the shielded inductors with brown inserts provided for L12,
L13 and L14 in the R.F. Bandpass filter. Prepare the inductors for
installation as follows:
Use the inductor alignment tool to exercise the core in each
inductor. If the alignment tool fits tightly, insert it from the
bottom to avoid pushing the inductor out of the shield. Run the
core up and down through the coil to ensure it runs smoothly
(some inductors are very stiff at first) then position the core near
the top of the coil.
Check the two leads and the two tabs on the case of each
inductor. If they are bent, straighten them carefully using long
nose pliers.