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Elecraft XV Assembly Manual for XV222 User Manual

Page 46

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Locate the shielded inductors with red 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.

Install the RF Bandpass Filter inductors in the lower right quadrant:

__L12 __L13 __L14

Install a jumper across the solder pads at W1 near the notch and

electrolytic capacitor C60 on the left side of the PCB.

Carefully inspect the bottom of the PCB for the following:

All component leads are soldered. Be especially careful when
checking relays and other components with several leads to
ensure that all the leads are soldered. There will be some
component locations on the PCB that are not filled. This is
normal. The same RF PCB is used for the XV50, XV144 and
XV222 transverters, and some components are specific to each
band.

All component leads are clipped at least as short as the relay
leads. Do not cut the relay pins.

Locate the male RCA plug. Solder a jumper between the center pin

and the shield. This plug will be used during the Alignment procedures.

This finishes Part II of the RF PCB Assembly. Proceed directly to RF
PCB Assembly Part III.

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