Mackie 1642-VLZ3 Manual De Usuario

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20
1642-VLZ3
164
2-
VLZ3
44.  MODE (NORMAL (AFL)/LEVEL SET (PFL))
You may have already seen some of this in the SOLO 
discussion, but in case you missed it: The 1642-VLZ3’s 
solo system comes in two fl avors:
• 
NORMAL (AFL) (sometimes called SIP, or solo-
in-place)
• 
LEVEL SET (PFL) (sometimes called PFL, or 
pre-fader-listen)
 In NORMAL (AFL), the soloed channel’s signal is 
sent directly to the control room, headphones, and me-
ters, just as it would sound to the channel’s assignment 
switches: post-EQ [32], post-FADER [25] and post-PAN 
[31]. The only difference is that SOLO works regardless 
of the channel’s assignment positions, and that makes it 
really handy — you can check out a channel before you 
assign it. 
NORMAL (AFL) is the preferred mode during mix-
down. For example, if the channel has some midrange 
boost at 4.2 kHz, is panned a smidgen to the left, and its 
fader is at –5 dB, that’s exactly what you’ll hear if you 
SOLO during NORMAL (AFL) mode. It’s just as if you 
took the time to MUTE all the other channels.
LEVEL SET (PFL) solo is the key player in the all-im-
portant Level-Setting Procedure. It’ll send the channel’s 
actual internal levels to the meters so you’ll know just 
what’s going on, level-wise. This procedure should be 
performed every time a new sound source is patched 
into a channel’s MIC [1] or LINE [2] input jacks. 
LEVEL SET (PFL) is also the preferred mode for SR 
(sound reinforcement, or live sound), to preview chan-
nels before they are let into the mix. It won’t give you 
stereo placement, but will give you signal even if the 
fader is turned down. 
Remember, LEVEL SET (PFL) taps the 
channel signal before the fader. If you have 
a channel’s fader set way below “U” (unity 
gain), SOLO won’t know that and will send a unity gain 
signal to the control room, headphones, and meters. 
That may result in a startling level boost at these out-
puts, depending on the  position of the SOLO level knob. 
45. LEVEL SET LED
To quote step 6 of the Level-Setting  Procedure, “Push 
in the MODE [44] switch in the output section (LEVEL 
SET (PFL) mode) — the LEVEL SET LED will light.” 
When the solo MODE switch is engaged, it’s in LEVEL 
SET (PFL) mode, the mode you must be in to set levels. 
Now, when you engage any solo switch, this LED will 
be a “green light” to set levels. If you tried to set levels 
during  NORMAL (AFL) mode, the meter display would 
be at the mercy of the channel fader, and that would be 
a big problem. 
46. SOLO (LEVEL)
This knob controls the level of the signals coming 
from the SOLO system. It’s range is off when fully down, 
unity at the center detent, with 10 dB additional gain 
turned fully up. After the SOLO level is determined, the 
SOLO signals will proceed to take over the control room, 
headphones, and meters. 
Once again, LEVEL SET (PFL) SOLO taps 
the channel signal before the fader. If you 
have a channel’s fader set way below “U” 
(unity gain), LEVEL SET (PFL) SOLO won’t know that 
and will send a unity gain signal to the control room, 
headphones, and meters. That may result in a startling 
level boost at these outputs, depending on the  position 
of the SOLO level knob. 
47.  RUDE SOLO LIGHT
This fl ashing LED (light emitting diode) serves two 
purposes — to remind you that you’re in SOLO, and to 
let you know that you’re mixing on a Mackie. No other 
company is so concerned about your level of SOLO 
awareness. We even force the soloed chan nel’s –20 LED 
to play along, so you can fi nd that rogue switch fast.
If you work on a mixer that has a SOLO function with 
no indicator lights, and you happen to forget you’re in 
SOLO, you can easily be tricked into thinking that some-
thing is wrong with your mixer. Hence the RUDE SOLO 
LIGHT. It’s especially handy at about 3:00 in the morn-
ing, when no sound is coming out of your monitors, even 
though your multitrack is playing back like mad.
48. METERS
The 1642-VLZ3’s peak metering system is made up 
of two columns of twelve lobster-hypnotizing LEDs. 
Deceptively simple, considering the multitude of signals 
that can be monitored by it. If nothing is selected in 
the SOURCE [42] matrix, and no channels are in SOLO 
[27], the meter display will just sit there. To put them 
to work, you must make a selection in the SOURCE 
matrix (or engage a SOLO switch).
Why? You want the meter display to refl ect what the 
engineer is listening to, and the engineer is listening 
either to the C-R OUTS [9] or the PHONES [10] output. 
The only difference is that while the listening levels are 
controlled by the CTL ROOM and PHONES [43] knobs, 
the meter display reads the SOURCE mix before the 
controls, giving you the real facts at all times, even if 
you’re not listening at all.
When the solo MODE [44] switch is set to LEVEL SET 
(PFL) (down), all soloed signals will be sent to the left 
meter only. That, combined with LEVEL SET LED [45], 
are along the path of   enlightenment known as the Level-
Setting  Procedure.  During NORMAL (AFL) mode, the 
meters will  behave normally.