
1073N Channel Amplifier
Issue 1.4
DC Power Supply Indicators (rack units)
u
The red LED on the front panel of both 3U and 5U rack units indicates
+24V power healthy when illuminated.
u
The green LED on the front panel of both 3U and 5U rack units
ind48V power healthy when illuminated.
u
Phantom power can be supplied to each module by pressing the
phantom power switch on the front panel of the 3U or 5U rack. The LED in
the switch will illuminate confirming that phantom power is supplied.
u
The mains switch on the rear panel of the 3U rack unit is non-
illuminating.
Output Level Control
u
Each channel has an independent Output Level Control. The control is
post-input, post-EQ and pre-output. This control can reduce the level at
the output.
u
When the Output Control is fully clockwise the output gain is
unity. The output is 20dB down with the control in the mid-
position.
Mains Voltage Adjustment
u
Switch off unit.
u
Remove fuse.
u
Turn inner barrel with screwdriver or coin until correct voltage figure is
under the white arrow on the housing.
u
Replace fuse.
Fuse Rating: T0.5A, 250v 20mm,
Ø
5mm.
- 5 -