ELECRAFT KRX3 Instrukcja Właściciela Pobierz pdf (Strona 7)

Figure 1. Removing K3 Top Cover.

CAUTION:

Touch an unpainted metal ground or wear a grounded wrist strap

before touching components or circuit boards inside the K3. See Preventing ESD Damage

page 4 for more information.

Removing the K144XV 2-Meter Module

If you do not have the K144XV 2-meter option installed, skip this section and go to Removing the KRX3 Sub

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. Some KPA3

shields have PEM nuts permanently attached to the shield for the screws. Others use ordinary nuts that must be

removed with the screws and lock washers.

The K144XV module is mounted on the left side panel of the K3. Remove the five screws shown in

Figure 2 and lift the top cover off of the module. Note: Some units may have a sixth screw in the hole near the

Elecraft name on the top cover that must be removed.

Figure 2. Removing the K144XV Top Cover.

Unplug the coaxial cables and the power connector attached to the K144XV module. Pull on the metal part

of the TMP coaxial connectors. Do not pull on the cables.

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ELECRAFT KRX3 Instrukcja Właściciela Strona 7