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ELECRAFT
K3
Installing the KXV3 RXA Board
Revision B, November 28, 2008
Copyright © 2008, Elecraft, Inc; All Rights Reserved
The KXV3 RXA Board mounts on the KXV3 board assembly using double-sticky tape. Electrical connections are
made by soldering wires to existing terminals.
Contents
The RXA board is supplied with the mounting tape and wires already attached.
Tools Needed
1. Temperature-controlled ESD-safe soldering station with 700 to 800F tip (370-430C).
2. IC-grade, small-diameter (.031”) solder (Kester #44 or equivalent).
DO NOT use acid-core solder, water-soluble flux solder, additional flux or solvents of any kind. Use of
any of these will void your warranty.
3. #0 and #1 size Phillips screwdrivers. Use the screwdriver that best fits the screw in each step.
4. Soft cloth or other surface to lay cabinet panels on to avoid scratching. A clean static-dissipating mat is
ideal (see below). If using cloth, do not lay circuit boards on it.
5. Pliers or wrenches for removing the 3/16” (4.8 mm) rear panel jack screw nuts and 1/4” (6.4 mm) #4 nuts.
6. Long nose pliers.
7. Diagonal cutters.
The following tools are strongly recommended:
1. ESD wrist strap.
2. Static dissipating work mat.
Installation Procedure
Disconnect power and all cables from your K3.
Remove the top cover as shown in Figure 1. After the cover is open, lift it gently to reach the speaker wire
connector. Unplug the speaker then set the top cover aside in a safe place.
Figure 1. Removing the Top Cover
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