Output Section Pfl/Afl; Dimmer; Lamp; Meter - Mackie SR40.8 Owner's Manual

OUTPUT SECTION PFL/AFL

This switch determines the Meter's source
signal for the MAIN/LEFT/RIGHT and SUB
MAX
O O
RECEIVE
Meters. With the switch up, in PFL mode (Pre-
Fader Listen), signals are sent to the Meters
IGNORE
pre-Fader, pre-MUTE, and pre-PAN. In fact, in
PFL mode, these Meters may save you the time
of having use SOLO, if all you need is a signal
CALL
COMMUNICATIONS
confirmation. With the switch down, in AFL
mode, signals are sent to the Meters post-
Fader, representing the output of the circuit.
O O MAX
LEVEL

DIMMER

ON

LAMP

400Hz
This control adjusts the brightness of the
PINK NOISE
OSCILLATOR
4-pin XLR Littlite
at a music store near you.
Littlite
Part Number
12X-HI-4
TALKBACK MIC
18X-HI-4
O O MAX

TALKBACK LEVEL

METER

This control adjusts the brightness of the
MATRIX A AUX 1-4
LED Meters.
Note: When the METER DIMMER is turned
MATRIX B AUX 5-8
all the way down to LOW, the amber LEDs (+4
to +10) may appear to be off. This is normal,
MATRIX C EXTERNAL
and due to the varying current requirements of
the different colored LEDs to produce equal
MATRIX D L/R
brightness. Adjust the control to suit your taste.
ASSIGN

TALKBACK

POWER SUPPLY STATUS

These five LEDs let you know that each of the
SR40•8's essential power supply voltages are
O O MAX
SOLO LEVEL
present. V.+ and V.– are the positive and nega-
tive power rails that power the audio circuitry.
5 V is a 5-volt DC supply that powers the logic,
MAX
O O
like the ULTRA MUTE
PHONES
relays. 12 V powers the 4-pin XLR lamp sockets.
48 V is the PHANTOM power supply.
On the off chance that one of these status
LEDs doesn't glow, indicating a problem, be
INTERCOM
sure to power down as continued use could
cause further damage.
TALKBACK
CO C O S
38
® lamps, which are available
Description
12" Hi-intensity lamp
with 4-pin XLR
18" Hi-intensity lamp
with 4-pin XLR
computer and SOLO
™
LOW MAX
LAMP

TALKBACK SECTION

The SR40•8's extensive TALKBACK section
allows the engineer to speak into several out-
puts via a master TALKBACK switch, with
separate assignment switches for AUX 1–4,
AUX 5–8, L/R mix, an EXTERNAL talkback out-
put, and one switch for each MATRIX (A–D).
Talkback microphones are patched into either
of the two phantom-powered XLR inputs and
regulated by a LEVEL control. Additionally, the
talkback signal may be replaced by a 400Hz sine
wave for checking levels, or PINK NOISE for
quickly checking frequency response.
TALKBACK
Point Before: OSCILLATOR
Point After: ASSIGN
This switch is enormous, glows in the dark,
and is located right in your face, by the LEFT/
RIGHT Faders. To speak to the crew and/or tal-
ent, simply engage the switch and your voice
will be sent to all the destinations you've
assigned.
If you're using the intercom system, this
switch stops glowing and the intercom switch
glows to indicate that someone is calling you.
TALKBACK LEVEL
Point Before: TALKBACK MIC inputs' preamp
Point After: OSCILLATOR
This controls the signal level from the
TALKBACK MIC inputs. The signal is off when
turned fully counterclockwise, with more than
enough gain turned fully clockwise. Set it so
everyone can hear you comfortably, probably
near the center detent.
DIMMER METERING
INPUT
SECTION
LOW MAX
PFL
METER AFL
switch.
switches.
.
POWER SUPPLY
STATUS
OUTPUT
SECTION
V.+ V.- 5 V 12 V 48 V
PFL
AFL