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4. Form the second of the wires along the chassis toward the place where the left
channel amplifier will sit.
Wiring the Inputs
1. The right channel twisted pair is long enough that it may be comfortably re-used.
Form it down along the chassis to the place where the right channel amplifier will
sit.
2. The existing left channel twisted pair will be too short. Remove the green and
black wires from the left channel input connector.
3. Twist and tin the ends (4 places) of the 6" long black and white twisted pair.
4. Connect the black wire to the left channel input ground (outside pin) and the
white wire to the left channel input signal pin (center pin).
5. Form the black and white twisted pair down along the chassis toward the place
where the left channel amplifier will sit.
Wiring the Outputs
Both red speaker output terminals should have 16 AWG white wires still connected.
1. Form the left channel wire toward the place where the left channel amplifier
module will sit.
2. Form the right channel wire toward the place where the right channel amplifier
module will sit.
Connecting the Left Channel Amplifier Module
1. Set the left channel amplifier board in place. Don't mount it to the chassis yet.
Note that the new PCB should face the center of the amplifier chassis.
2. For the red and black twisted pair that powers the left channel board:
a. From the solder side of the board, insert the left channel red wire through
the left channel VCC eyelet and solder it on the component side.
b. From the solder side of the board, insert the left channel black wire
through the left channel PGND eyelet and solder it on the component side.
3. For the black and white twisted pair that brings signal to the left channel board:
a. From the solder side of the board, insert the left channel black wire
through the left channel INGND eyelet and solder it on the component
side.
Figure 21-Ground wiring harness
Page 27 of 32
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Troubleshooting
