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B400 Block Diagrams 3.5
AUX 2 AND AUX 3 CIRCUITS
ARE IDENTICAL TO AUX1
ON-AIR CTL
TB ST CTL
TO MONITOR &
METERBRIDGE
AUX 1 OUTPUT
AUX 4 L OUTPUT
AUX 4 R OUTPUT
CUE L
CUE R
CUE L
CUE R
CUE CTL
CUE CTL
TONE ST CTL
TONE ST RIGHT
TONE ST LEFT
TALK ST1 (or ST2)
REM COM
EXT MUTE
ST L MIX
ST R MIX
AUX 1 MIX
AUX 4 L MIX
AUX 4 R MIX
LIMITER
IN
LIMITER
IN
LIMITER
LIMITER
ST
LEFT
OUTPUT
TRANS-
FORMER
OPTION
TRANS-
FORMER
OPTION
ST
RIGHT
OUTPUT
OUTPUT
ROUTING
CONTROL
OUTPUT
ROUTING
CONTROL
FADER
FADER
FADER
DOWN
FADER
DOWN
MUTE
MUTE
INSERT
SEND
INSERT
RETURN
INS
INSERT
SEND
INSERT
RETURN
INS
RELAY
CONTROL
LOGIC
REMOTE
START
MONO
OUTPUT
(EDAC
CONNECTOR)
(EDAC
CONNECTOR)
(EDAC
CONNECTOR)
(EDAC
CONNECTOR)
ON-AIR
CONTROL
LOGIC
ON-AIR
RELAY
CONTACTS
ON-AIR
ON-AIR
EXT CTL
POWER
SUPPLY
VOLTAGE
MONITOR
OPTO-
ISOLATOR
ST1 MASTER ONLY
MUTE
TO MONITOR &
METERBRIDGE
TO MONITOR &
METERBRIDGE
TO MONITOR &
METERBRIDGE
TO MONITOR &
METERBRIDGE
TO MONITOR &
METERBRIDGE
PEAK
DETECT
AUX 1
MASTER LEVEL
AUX 4
MASTER LEVEL
MUTE
MUTE
AFL
AFL
MONO
LEVEL
PRE