ELECRAFT K3 Installing page 4

Install the RXA board on the KXV3 board as shown in
Inspect the board carefully to confirm all four leads go to the proper terminals, any excess is trimmed
off, there and the RXA board is securely adhered to the to of relay K2. Use a magnifier to ensure there are
no solder bridges.
Replace the KXV3 board in your K3 (see
Holding the KXV3 board so the BNC connectors against the top of the rear cover opening, carefully
slide the pins into the corresponding holes on the connector.
Carefully inspect the pins to be sure each one has dropped into its respective socket and no pins are
caught out of position alongside the connector. If you have the KRX3 installed, inspect the pins
from both the top and the side.Note that pin 14 (third from the end) is missing. That is normal.
Press down on the KXV3 board to mate the connector only far enough to align the screw holes with
the holes in the back panel. Remember that a portion of the pins will still be visible when it is in
position (See
Figure 5
Replace the 4-40, 1/2" (13 mm) pan head screws through the KXV3 rear cover, the K3 back panel
and the KXV3 pc board and secure them with the inside tooth lock washers and 4-40 nuts you
removed earlier. Be sure the rear panel is oriented so the connector labels are right side up.
Replace the coaxial connector into J87 in the KXV3 board. Note that P66 does not fully engage the
connector in the K3 RF board. A portion of the pins are visible above the connector when the board
is in the correct position.
Figure 6. Installing the RXA Board.
Figure 5
).
.
Figure 6
) as follows:
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