ELECRAFT K3 Installation Instructions Manual
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ELECRAFT K3 Installation Instructions Manual

High-performance 160–6 meter transceiver
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Download this manual See also: Owner's Manual, Instruction and Installation Manual
E
K3
LECRAFT
H
-P
160 – 6 M
IGH
ERFORMANCE
ETER
T
RANSCEIVER
KXV3A I
O
NTERFACE
PTION
I
I
NSTALLATION
NSTRUCTIONS
Rev B, December 28, 2011
Copyright © 2011, Elecraft, Inc.
All Rights Reserved

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Summary of Contents for ELECRAFT K3

  • Page 1  LECRAFT 160 – 6 M ERFORMANCE ETER RANSCEIVER KXV3A I NTERFACE PTION NSTALLATION NSTRUCTIONS Rev B, December 28, 2011 Copyright © 2011, Elecraft, Inc. All Rights Reserved...

  • Page 2: Table Of Contents

    Contents Introduction ............................... 3   Customer Service and Support ..........................3  Technical Assistance ............................3  Repair / Alignment Service ..........................3  Preventing Electrostatic Discharge Damage ....................... 4  How ESD Damage Occurs ..........................4  Preventing ESD Damage ............................. 4  Preparing for Installation .......................... 5  ...

  • Page 3: Introduction

    Elecraft at the time of original order, are not covered by this warranty. If the Elecraft product is being bought indirectly for a third party, the third party's name and address must be provided to Elecraft at time of order to insure warranty coverage.

  • Page 4: Preventing Electrostatic Discharge Damage

    How ESD Damage Occurs Whenever an object containing a static charge touches a circuit in your K3, current will rush into the circuit until the components reach the same voltage as the source of the static charge. If the voltage or current that passes through a component during that brief period exceeds its normal operating specifications, it may be damaged or destroyed.

  • Page 5: Preparing For Installation

     If you choose to use a soldering iron to work on your K3 for any reason, be sure your iron has an ESD- safe grounded tip tied to the same common ground used by your mat or wrist strap.

  • Page 6: Parts Included

    Parts Included The following parts should be included in your kit. Check to ensure you have them all. If any parts are damaged or missing, contact Elecraft for replacements (see Customer Service and Support, page 3). ELECRAFT ILLUSTRATION DESCRIPTION QTY.

  • Page 7: Removing The K144Xv 2-Meter Module

    Receiver Module on page 8. Remove the stiffener bar that runs from side to side across the top of the K3 chassis. This is the bar the three screws across the center of the top cover thread into. The bar is held in place by a single screw at each side and, if the KPA3 100 watt option is installed, by two screws attaching it to the KPA3 shield.

  • Page 8: Removing The Krx3 Sub Receiver Module

    Remove the chassis stiffener bar that runs across the top of the K3 chassis and is attached to the side panels. If the KPA3 is installed, the stiffener will be attached to the KPA3 shield by two screws. These screws may have nuts and lock washers or they may thread into permanently-attached PEM nuts on the stiffener bar.

  • Page 9: Removing The Bottom Covers And Kio3 Board

    Simply remove the existing KXV3 board and replace it with the KXV3A using the existing TMP cable. Remove the Digital I/O module from the KIO3 Board at the rear of the K3 as shown in Figure 5. Figure 5. Removing the Digital I/O Module.

  • Page 10: Installing The Kxv3A Board

    RF board (see Figure 7). If soldered to the board, take care not to lose any pieces of wire inside the K3. No more than 1/8” (3mm) of lead length should be left to avoid the possibility of shorting to a nearby circuit.
  • Page 11 . As you install components and reassemble your K3, be sure all the screws are in place and secure, but do not over tighten them. Failure to tighten all screws may result in poor shielding of sensitive components, resulting in possible noise or birdies in the receiver as well as other difficult-to-trace problems.
  • Page 12 Mount the KXV3A rear panel over the BNC connectors using two 4-40 1/2” (13mm) black pan head screws through the corner holes with #4 inside tooth lock washers and 4-40 nuts on the inside as shown in Figure 10. Do not fully tighten the nuts yet. Figure 10.

  • Page 13: Reinstalling The Kio3 Board

    If you were directed here to install your KXV3A module as part of the overall kit assembly, installation of the KXV3A module is complete. Return to the K3 Kit Assembly Manual where you left off. Reinstalling the KIO3 Board Replace both bottom covers using the 4-40 black pan head screws you removed earlier. Note that three locations take the 4-40 1/4”...
  • Page 14 Figure 13. Check KIO3 Audio I/O Board Mating. Replace the KIO3 Main Board with the audio I/O daughter board attached in the K3 as shown in Figure 14. The audio I/O board fits just over the KXV3A board assembly and the TMP cable passes through the space between the edge of the KXV3A board and the KIO3 board.

  • Page 15: Replacing The Top Cover

    Be sure the cover on battery BT1 on the K3 RF board is in place. The cover is essential to avoid shorting the battery. The outer rim of the battery is the positive terminal, and may come in contact with the grounded bottom of the KRX3 enclosure if the cover is not in place.

  • Page 16: Enabling The Kxv3A Module

    Position the top cover on the K3. Note that the tab on the back center goes under the rear lip of the K3 rear panel. Secure the top cover with the nine 4-40 3/16” (4.8 mm) black flat head screws you removed earlier.

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