ELECRAFT KRX3 Owner's Manual

ELECRAFT K3 HIGH-PERFORMANCE 160 – 6 METER TRANSCEIVER KXV3A INTERFACE OPTION INSTALLATION INSTRUCTIONS Rev B, December 28, 2011 Copyright ©

10Tilt the top of the KIO3 Main board toward the front panel gently so the standoff at the top clears the lip on the rear panel, then use the stand

11Inspect the white connector at the end of the TMP cable. The side nearest the connector holes must be smooth and flat. Use your diagonal cutters

12Mount 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

13Route the coaxial cable from the KXV3A board to connector P86 on the bottom of the RF board as shown in Figure 12. Mate the connector to P86 as s

14Check the KIO3 board and ensure the screws holding the two standoffs are tight. Also check to ensure the connector on the audio I/O daughter boar

15Replace the screws in the digital I/O daughter board panel as shown in Figure 16. Figure 16. Mounting the Digital I/O Board and Rear Panel. If

16Position 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 th

2Contents Introduction ...

3Introduction The KXV3A Interface provides a separate receive antenna input and output, an input and output for use with an external transverter, a

4Preventing Electrostatic Discharge Damage There is no climate or work location where the components of your K3 are safe from Electrostatic Dischar

5We strongly recommend you take the following anti-static precautions (listed in order of importance) to avoid trouble:  Leave ESD-sensitive part

6Parts 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

7 Figure 1. Removing K3 Top Cover. CAUTION: Touch an unpainted metal ground or wear a grounded wrist strap before touching components or circuit b

8 Remove the three 6-32 screws that secure the K144XV module to the side panel. Hold the module to keep it from falling if the KRX3 sub receiver is

9Hold the KRX3 module by the two brass knurled nuts on the top, and lift it straight up to gain access to the small TMP coaxial connectors plugged