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Prepare and Add Shielded Cables to the Inputs
For lowest hum, you must use shielded cable between the PHONO LOW RCA Jacks and
the inputs on the PCB. Prepare two 4” lengths of shielded cable:
1.
One for the right channel, using the red conductor and the drain wire.
2.
One for the left channel, using the black conductor and the drain wire.
Details on the preparation of the shielded cables can be found in Appendix 2 - Preparing
a Shielded Cable End. Prepare both ends of both pieces of shielded cable now, as it will
make it much easier to later complete installation of the input wiring.
Figure 3-Shielded cable installation (right channel shown here)
Connect the wires as follows:
1.
Right channel signal wire (red) to the eyelet labeled INRIGHT
2.
Right channel drain wire (bare wire covered with added gray outer jacket) to the
eyelet labeled GNDRIGHT.
3.
Left channel signal wire (black) to the eyelet labeled INLEFT
4.
Left channel drain wire (bare wire covered with added gray outer jacket) to the
eyelet labeled GNDLEFT.
Double check that you have not reversed the ground and signal wires.
Install the Mounting Brackets
Use 6-32x1/4” sems screws to install mounting brackets as shown in Figure 4. Make sure
the brackets are straight before you tighten them.
Figure 4-Use 6-32x1/4" screws to attach mounting brackets