Power Supply Assembly - NorthStar HORIZON Manual

POWER SUPPLY ASSEMBLY
Assl,mbly of the power supply is the first step in the assembly of
the HORIZON. In the following instructions, use of the words
"leCt" and "right" refers to those directions when facing the
frollt of the computer.
Pl. Check to be sure you have all the parts for the power supply
by referring to the parts list. Identify each of the wires
listed in Table 1 (at the end of this section) and neatly
tag each wire with the appropriately numbered wire label
from the wire label card. The label should be placed near
end A to aid in orienting the wires.
P2~
Mount the fan and fan guard to the back panel so that the
following order results from outside to inside: 6-32x7/8"
machine screw heads, fan guard, back panel, fan, 16 lock
washers and 16 nuts. The outside of the back panel will be
the side away from you when the large fan opening and two
rectangular switch holes are on your upper right. See
figure IP. Orient the fan so the power connections are on
the lower right and the airflow arrow points outward.
P3. Mount the fuseholder to the outside of the back
position and orientation as shown in figure IP.
side lug away from the fan, and fasten with the
fuseholder nut. Insert the 5 amp fuse into the
and twist on the fuseholder cap.
panel in the
Orient the
large
fuseholder
P4. Install the line filter to the outside of the back panel In
the position and orientation shown in figure IP.
The
following order should result from outside to inside:
6-32xl/2" machine screw heads, line filter, back panel, lock
washers, and nuts.
P5.
Snap the reset paddle switch into the top rectangular hole
to the right of the fan from the outside of the back panel.
Orient the switch so that the paddle points toward the fan.
P6. Snap the power rocker switch into the rectangular hole just
below the reset switch from the outside of the back panel.
Orient the switch so that lugs 13 and 16 are to the left.
19 North Star HORIZON Computer