15
Taking the 60mm signal cable from the potentiometer, cut to
length and trim back the outer insulation AND the screen braid
to approx 25mm. Insulate to avoid fraying. Solder the White /
Clear inner core to the PCB pin IP
+
, and the Blue inner core to
the PCB pin IP
-
.
Repeat for the Left Channel (the 200mm length) and solder the
White / Clear inner core to the PCB pin IPL
+
and the Blue to IPL
-
.
Taking the 275mm cables from the potentiometer, cut to length
and trim back approx 25mm of the outer insulation, unplait and
twist the braid together and insulate if you wish. Solder the
wires for the Right channel to the pins on the Relay PCB as fol-
lows: the Screen braid to GRD3, the Blue inner core to OPGR and
the White / Clear inner core to OPR. While it is not strictly nec-
essary to separate the screen and the blue inner core, doing so
provides extra mechanical stability to the joints.
Repeat for the Left channel
-
the screen braid to GRD2, the Blue
inner core to OPGL and the White / Clear inner core to OPL.
WDPre3 Kit Assembly Instructions
Fig. 15
Signal Wiring and LED
Fig. 15
Solder 150 of Black wire to the short leg of the LED and 150mm
of Red wire to the long leg of the LED. Cover the joints with
heat
-
shrink sleeving and twist the wires together.
Solder the Red cable to the LED1 PCB pin and the Black cable to
the LED2 pin.
The LED can then be pushed through the hole in the front panel,
ready for fitting to the fascia.
Proceed to Constructing the Power Cables and Testing the Amplifier.
WIRING THE LED
15
Taking the 60mm signal cable from the potentiometer, cut to
length and trim back the outer insulation AND the screen braid
to approx 25mm. Insulate to avoid fraying. Solder the White /
Clear inner core to the PCB pin IP
+
, and the Blue inner core to
the PCB pin IP
-
.
Repeat for the Left Channel (the 200mm length) and solder the
White / Clear inner core to the PCB pin IPL
+
and the Blue to IPL
-
.
Taking the 275mm cables from the potentiometer, cut to length
and trim back approx 25mm of the outer insulation, unplait and
twist the braid together and insulate if you wish. Solder the
wires for the Right channel to the pins on the Relay PCB as fol-
lows: the Screen braid to GRD3, the Blue inner core to OPGR and
the White / Clear inner core to OPR. While it is not strictly nec-
essary to separate the screen and the blue inner core, doing so
provides extra mechanical stability to the joints.
Repeat for the Left channel
-
the screen braid to GRD2, the Blue
inner core to OPGL and the White / Clear inner core to OPL.
WDPre3 Kit Assembly Instructions
Fig. 15
Signal Wiring and LED
Fig. 15
Solder 150 of Black wire to the short leg of the LED and 150mm
of Red wire to the long leg of the LED. Cover the joints with
heat
-
shrink sleeving and twist the wires together.
Solder the Red cable to the LED1 PCB pin and the Black cable to
the LED2 pin.
The LED can then be pushed through the hole in the front panel,
ready for fitting to the fascia.
Proceed to Constructing the Power Cables and Testing the Amplifier.
WIRING THE LED
