Power Switch; Power Led; Phantom Switch; Phantom Led - Mackie 1604-VLZ PRO Owner's Manual

POWER SWITCH

If this one isn't self-explanatory, we give up.
You can leave this switch on all the time; the
1604-VLZ PRO is conservatively designed, so
heat buildup isn't a problem even in 24-hour-a-
day operation. There's nothing that will burn
out or get used up. You may notice that the
1604-VLZ PRO's "pod" feels quite warm (the
pod is the chassis that contains the jacks).
This is perfectly normal.

POWER LED

You've probably already figured this out, but
if the POWER switch is on, this LED (light-
emitting diode), located in the output section,
will light. If the switch is off, well, you get the
idea. If the POWER switch is on and the LED
does not glow, one of three things has hap-
pened: Somebody tripped over the power cord
and yanked it from the outlet, your electricity
has been turned off due to nonpayment, or the
fuse has blown

PHANTOM SWITCH

The PHANTOM switch controls the phan-
tom power supply for condenser microphones as
discussed at the start of this section
turned on (or off), the phantom power circuitry
takes a few moments for voltage to ramp up (or
down). This is also perfectly normal. For an
even closer look, refer to Appendix C.
120 VAC 50/60 Hz 20W PHANTOM
POWER
1A/250V SLO-BLO ON ON
CAUTION:
TO REDUCE THE RISK OF
FIRE REPLACE WITH SAME
TYPE FUSE AND RATING
UTILISE UN FUSIBLE DE RECHANGE DE MÊME TYPE. DEBRANCHER AVANT DE REMPLACER LE FUSIBLE UTILISE UN FUSIBLE DE RECHANGE DE MÊME TYPE. DEBRANCHER AVANT DE REMPLACER LE FUSIBLE
16
.
. When

PHANTOM LED

Located right next to the POWER LED in the
output section, this is just to let you know which
way you have the PHANTOM switch set. If your
dynamic mics work and your condensers don't,
chances are this LED is off, so turn it on.
You'll notice that when you turn the phan-
tom power off, the LED stays on for a while.
This is a natural phenomenon — the LED is
actually a yellow voltmeter telling you that the
phantom power takes time to ramp itself down
to zero volts. So, if you've turned phantom
power off to connect something to the mic in-
puts, wait until the yellow LED stops glowing
and then make your connections safely.

BNC LAMP SOCKET

Located in the top right corner of the out-
put section, this 12V socket will drive any
standard BNC-type lamp (a Littlite
#12G-HI (high-intensity), for instance).
1604-VLZPRO
® #12G or