System Paths
The System Paths are special path types that are required by Logic MMC for monitoring, solo, talkback and tone
functions to operate correctly.
The number of each type of System Path can be changed for a particular Desk Setup but it is strongly
recommended to keep the normal defaults for these path types.
SEL
There are six SEL paths by default (SEL is an abbreviation of 'select'), SEL1 to SEL6, that are used by the
monitoring system and for selecting a source for the VU Meters.
The Monitoring Schematic shows how the SELs and LISTENs are used.
LISTEN
There are two LISTEN paths by default, LS1 and LS2, that are used by the AFL and PFL solo busses.
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LS1 and LS2 should not be confused with the small loudspeakers (L/S 1 and L/S 2) that can be fed by SEL1 and
SEL3.
TALKBACK
There is one TALKBACK path that is used for the talkback system and the tone/slate generator.
FILM LISTENS
These are used to provide a non-destructive AFL solo bus that feeds the Surround Monitors directly. The number
of FILM LISTENS is automatically changed to match the number of Film paths, and this should not be changed
manually. They are named FLS1 to FLS8.
FILM LISTENS are only used if the optional Surround Sound Panel is installed.
Working With Signal Paths
System Paths
Issue 4
Page 4:5
AFL BUS
"CIRCUITS" MADE
BY SWITCHING ON
REAL OR VIRTUAL DACS
LISTENS: 0 SELECTED = NONE
1 SELECTED = AFL ONLY
2 SELECTED = AFL & PFL
ALL PATHS SHOWN ARE STEREO
PFL BUS
"LS2" DAC
"LS1" DAC
"SEL1" DAC
"SEL3" DAC
MON 1
IN
MON 2
IN
PFL
ANY SOLO
KEY
SMALL L/S2
KEY
SMALL LS1
KEY
LARGE L/S
LEVEL
LARGE L/S
SMALL L/S1
SMALL L/S2
OPTIONAL
AFL SPEAKERS
OPTIONAL
PFL SPEAKERS
SMALL L/S1
LEVEL
SMALL L/S2
LEVEL
CUT
&
DIM
CUT
&
DIM
CONTROL
ROOM
MONITOR
SOURCE
SELECTOR
ANALOGUE
HARDWARE
CONSOLE
DIGITAL
PROCESSING
"SEL2" DAC
STUDIO
IN
PFL
STUDIO L/S
STUDIO L/S
LEVEL
CUT
&
DIM
STUDIO
MONITOR
SOURCE
SELECTOR
Logic MMC Standard Monitoring
MAIN LS
OUT
SMALL LS1
OUT
SMALL LS2
OUT
STUDIO
OUT
"SEL4" DAC
HEADPHONES
IN
PFL
HEADPHONE
SOCKET
HEADPHONE
LEVEL
HEADPHONES
SOURCE
SELECTOR
HEADPHONES
OUT
"SEL5" DAC
VU METERS
IN
PFL
VU METERS
FIRST
VU METERS
SOURCE
SELECTOR
SELS
The number of SELs set in Desk Edit will affect the availability of
monitoring output facilities. E.g. If 5 SELs are configured then the
second VU Meter selector on the optional Meter Bridge will not
operate and no signals will be metered by those VU Meters.
"SEL6" DAC
VU METERS
IN
PFL
OPTIONAL
VU METERS
SECOND
VU METERS
SOURCE
SELECTOR