Raleigh Audio RAKK dac Mark III Extreme Preamplifier Assembly Manual page 19

Extreme preamplifier
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7. Now would be a good time to personalize the jumpers on the RAKK Input board if you
haven't already done so. Refer to the instructions in the RAKK Input manual.
8. Connect the twisted pair from each input jack to the "IN" pads on the RAKK Input board.
Solder the blue (orange) wire to the "+" pad and the black wire to the "-" pad.
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Wire the power connector:
1. Wire the safety ground:
This wire will be used a single-point chassis ground buss to which other wires are soldered.
• Strip the insulation from the 2" piece of #18 solid wire so that it is bare.
Connect one end of this wire to the top (center from the outside) terminal on the power
connector.
• Dress the wire straight to the side and then down toward the solder lug. Connect the wire
to the tab on the solder lug.
• Solder both ends of the wire.
• Tin the wire by flowing solder over the whole length.
The "hot" and "neutral" pins will be wired later.
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Wire the chassis ground connections:
The length of the first two of these wires will vary depending on your configuration of input and
output jacks.
1. Connect a 12" #20 green wire between the ground buss at the power connector and the
"chassis" pad on the RAKK Input board. Solder both ends and dress the wire along the top
edge of the panel.
2. Connect a 6" #20 green wire from both center pins on the "RCA/XLR" (Gnd/Lift) switch to
the ground buss. Solder both ends and dress the wire along the center of the panel.
3. Prepare an 11" #20 green wire. Connect it to the ground buss
4. Prepare a 26" #20 green wire. Connect it to the ground buss
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18

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