Reinstalling The Sub Receiver Module - ELECRAFT K3S KAT3A Installation Instructions Manual

Plug the connectors on the wires leading to the
Figure 10. goes to the connector nearest the rear panel, and
ANT 1
panel as shown. Support the top of the KAT3A board when plugging in these connectors. The fit may be very
tight and the KAT3A board does not have any mechanical support at the top yet.
Replace the right side panel on the K3
3/16" (4.8 mm) screws you removed earlier.
Replace the 4-40 1/4" (6.4 mm) zinc pan head screw and washer that holds the KAT3A board to the
standoff as shown in Figure 5.
Replace the 4-40, 3/16" (4.8 mm) black flat head screw that secures the back panel to the 2D fastener as
shown in Figure 5.
Replace the two 4-40 3/8" (9.6 mm) black flat head screws, lock washers and nuts to secure the heat sinks
of U13 and U12 to the side panel as shown in Figure 4.

Reinstalling the Sub Receiver Module

If your K3s/K3 does not have a KRX3A or KRX3 sub receiver, go directly to Replacing the Top Cover on page
13.
If your K3 /K3 is equipped with the sub receiver, turn to your KRX3 or KRX3A Sub Receiver Installation
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and Operation manual, Installing the Sub Receiver Module section to replace the module. Be especially careful
to do the following as described in that procedure:
If you have a K3 (not a K3
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 sub receiver enclosure if the cover is not in place. The
K3 battery lies flat on the board and needs no protective cover.
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Be sure all the TMP cables are properly connected or your K3
ANT 1
Figure 10. Installing the KAT3A Board.
/K3, installing the screws shown in Figure 6 first. Use the 4-40
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), be sure the cover on battery BT1 on the RF board is in place. The cover is
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12
and jacks into the KAT3A board as shown in
ANT 2
goes to the one farthest from the rear
ANT 2
/K3 will not operate properly.
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