Pre
wire
the
Power
Transformer
For the following steps, refer to the
LL1683 Data sheet
.
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1.
Wire the transformer for your Mains line voltage:
115VAC:
•
Connect pin 2 to pin 12 with a #20 black wire.
•
Connect pin 4 to pin 10 with a #20 black wire.
230VAC:
•
Connect pin 4 to pin 12 with a #20 black wire.
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2.
Fabricate a T-shaped AC power cable as follows:
•
Cut a #20 black wire, 11 inches long. Do not strip the ends.
•
Cut a #20 black wire, 19¾ inches long. Do not strip the ends.
•
Cut a #20 white wire, 16¼” long. Do not strip the ends.
•
Align the white wire with the longer black wire and twist them together for about 11”.
•
Align the other black wire with the other end of the white wire and twist them together
for 3¾”.
•
Go back to the first pair (that you twisted to 11”) and continue the twist until you get to
the junction of the second pair.
•
Now twist the two black wires together until you get to the end. Don’t worry if the two
black wires are different length – you will trim them later.
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3.
Wire the AC cable that you just fabricated:
•
Trim the 3¾” black/white stub to be 3½” long.
•
Separate the end of the stub for 2¼”.
•
Trim 1¾” from the end of the black wire.
•
Strip ¼” from the end of both wires and tin the ends.
•
Connect the white wire to pin 10.
•
Connect the black wire to pin 2.
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8
