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CONTROLS AND CONNECTIONS
11
and is pre the master AUX send control (30). When the
AUX/MON switch (26) button is depressed, this output
serves as the monitor output for the Right bus (see also
Master Mix Function and Operation).
e. Power Connection, Indicators, and Switches
(39) AC POWER CORD
(38) MAIN POWER SWITCH
(40) 115/230VAC POWER SELECTOR SWITCH
(19A) POWER ON LED INDICATORS
(41) FUSE HOLDER
Check the power source for the voltage (115VAC or 230VAC)
in your area and switch the Power Selector switch (40) to
select the proper voltage. Once you have connected the AC
power cord (39) to the AC power source, switch on your
mixer with the Power On switch (38). The Power ON LED
Indicators (19A) will light up. Allow 1 minute after powering
up for the system to reach equilibrium before setting input
gains and other levels. You can leave the PRM-400 on all the
time. It is conservatively designed, so heat build-up isn’t a
problem even in 24-hour-a-day operation. There’s nothing that
will burn out or get used up. Alternatively, you can just plug
every unit in your total system into a Nady Power
Conditioner PCL-800/810/815 or a good quality power strip,
for one-button turn-on.
The PRM-400 is fused for your (and its own) protection. If a
fuse blows, disconnect the AC cord, and replace the fuse
with a 6.0A (5x20mm, 250V) type, available at electronics
stores or through your dealer. If the fuse blows continuously
upon replacement, unplug the unit and refer to qualified per-
sonnel for servicing before further use.
(23) PHANTOM POWER SWITCH
(24) PHANTOM POWER ON LED INDICATOR
When using condenser mics, +48VDC can be switched glob-
ally on or off to the XLR mic inputs for all six channels (also
see INPUT SECTION, MIC INPUTS). When this switch is in
the ''ON'' position (button depressed), the Phantom Power
On LED Indicator (24) will light, and +48VDC will be provid-
ed between pins 2 and 3 of all the Mic input XLR connec-
tors. If you don’t need phantom power, be sure to turn this
switch to the ''OFF'' position.
[Note: It is safe to connect balanced dynamic mics or line
level devices even if this switch is on, but connecting unbal-
anced devices or devices whose transformers are center-
grounded will cause hum or malfunctions. Shorting the
+48VDC can also damage your mixer. Also, turn down the
Stereo Master faders (27A, 27B) to prevent possible sharp
transient noise from damaging the speakers when turning
the phantom power on or off.]
(38)
(39)
(40)
(41)
(42)