NorthStar HORIZON Manual page 21

bracket. Leave end B of wire #14 and end A of wire #10
unattached for now.
Check with an ohmmeter that there is no short between either
diode and the chassis.
PI 8. Mount the four-prong bridge rectifier to
in the location and orientation shown in
6-32xS/8" machine screw and lock washer.
be nearest the right rear of the chassis.
the chassis frame
figure 2P using a
The
+
lug should
PJ9. Mount the transformer in the location and orientation shown
in figure 2P. Be sure that the ring lugs are in the front
left position. You may wish to use masking tape to hold the
screws in position while mounting the transformer. The
following order should result from bottom to top: four 1/4"
machine screw heads, chassis frame, transformer brackets,
lock washers and nuts. Before tightening the nuts firmly,
slide the transformer as far forward as the oval mounting
holes will permit, and center the transformer between the
180,00uf capacitor on the left and the wall of the chassis
frame on the right.
P:~O. Connect end A of wire #10 to terminal #4 of the transformer
with a #10 machine screw and lock washer. The following
order should result from left to right: 10-32x3/8" machine
screw head, lock washer, wire end ring terminal, and
threaded transformer terminal.
P~l. Connect end B of wire #12 to terminal #3 of the transformer.
P~2. Connect end B of wire #11 to terminal #2 of the transformer.
P~3.
Connect end A of wire #9 to terminal #1 of the transformer.
If necessary, bend the transformer ring terminals away from
the transformer frame and each other so no shorts can occur.
Be sure that the lead from the stud diode is straight and
does not get bent.
P24. Mount the II,000uf electrolytic capacitor in the location
and orientatIon shown in figure 2P. Follow the mounting
procedure as for the 180,000uf capacitor (see step PI4),
using a 1 3/8" diameter capacitor clamp.
P2S. Mount the 8,900uf capacitor in the location and orientation
shown in figure 2P. Follow the mounting procedure as for
the 180,000uf capacitor, using a 1 3/8" diameter capacitor
clamp. Compare your assembly to this point with figure 2P
for correctness.
P26. Connect the following four wires to the
+
terminal of the
180,000uf capacitor with a 10-32x3/8" machine screw and lock
washer: end B of wire #13, end B of wire #14, end A of wire
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North Star HORIZON Computer