Elecraft KPA500 Kit Assembly Manual - Manual (Page 18)

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On the rear panel, place two screws through the holes just below the word CAUTION near the top of the
panel with the screw heads on the outside. On the inside surface of the rear panel, install the terminal strip
insulator and terminal strip as shown in Figure 18.
Figure 18. Installing Rear Panel Terminal Strip.
Use your DMM to check for shorts between the terminal strips and the bare metal on the rear panel. The
DMM should indicate whatever it normally shows when the probes are not touching.
Install the fan with the finger guard over the large opening in the rear panel as shown in Figure 19. Each
screw must pass through a spacer between the ears on the fan housing as shown Orient the fan so the wires pass
through the slots in the fan housing and through the opening provided in the panel as shown. If airflow arrows
are visible on the fan housing, they will show t hat air will be blown out of the back of the KPA500.
Do not over-tighten the screws.
Figure 19. Installing the Fan.