Power connection and system activation

AC power cord polarity

Be sure all associated equipment is disconnected from the AC mains.

After making all signal connections and internal adjustments, connect the ten-pin DC cable from the rear panel of the PLS-228 to the connector on the rear panel of the Nº28.

Connect the AC cord to the male IEC connector on the rear panel of the PLS-228, then connect the AC cord to the AC mains.

To PLS-228

To AC mains

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

= Line (hot)

1 2

1

2

2

= Neutral

 

 

 

3

= Earth ground

3

 

3

 

 

The LED on the PLS-228 will light; after about five seconds, the LED on the Nº28 will flash. After the LED begins flashing, turn the OUTPUT LEVEL knob on the front panel of the Nº28 to its lowest (OFF) position (the LED will stop flashing).

Allow the Nº28's circuitry to stabilize for 1 to 2 minutes, then connect all associated equipment to the AC mains and activate it.

For optimal sonic performance and longevity, the Nº28/PLS-228 is designed to remain powered at all times (a power-on/power-off switch isn't provided).

Note: If AC mains power to the Nº28 is interrupted, the main output will be muted. When power is restored, the main output will remain muted and the LED will flash until the OUTPUT LEVEL knob is turned to its lowest (OFF) position (the LED will stop flashing). Allow the preamplifier circuitry to stabilize for 1 to 2 minutes; the OUTPUT LEVEL control will then function normally.

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Mark Levinson N28 manual To PLS-228 To AC mains = Line hot = Neutral = Earth ground