Elecraft KPA500 Kit Assembly Manual - Manual (Page 24)

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Mount the rectifier board on the Z-bracket as shown in Figure 29. The three holes in the pc board mount on
the three standoffs on the Z-bracket.
Figure 29. Rectifier Board on the Z-Bracket.
Use your DMM to check for shorts between the metal tab on each rectifier and the bare metal of the Z-
bracket. The DMM should indicate whatever it normally shows when the probes are not touching.
Place the Z-bracket with the rectifier board and PA/LPF module attached on your work table with the heat
sink down, then gently position the bottom cover assembly you completed earlier over it as shown in Figure 30.
Locate and pull the gray wire attached to the power supply module to the rear and route it through the hole in the
Z-bracket as shown. The connector is typically a very tight fit the first time it is passed through the hole.
Figure 30. Preparing to Install the Z-Bracket Assembly in the Bottom Cover.