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3.6 B400 Block Diagrams
OPT 1 CTL #1 & 2
EXT CUE I/P
CALL 2
CALL 1
OPT 2 CTL #1 & 2
PROD TB TO
ENG CTL
PROD TB TO
STUDIO CTL
PROD TB TO
ENG CTL
PROD TB TO ENG
PROD TB TO ENG
MIC OPEN
STUDIO MUTE
PROD SW TB
( PIN ON MOTHERBOARD )
PROD T/B
TO EXT CTL
PROD T/B
TO GUEST CTL
TB TO OPT 1
TB TO OPT 2
-30dB
-30dBu TONE
ON-AIR CTL
ON-AIR CTL
SLATE TALK/TONE
MNTR DIM
TALK BUS
T/B GAIN
STU TLK
LEVEL
TB TO EXT CTL
TB TO EXT
TALK STTALK ST
TALK ST
TONE ST1 R
TONE ST1 L
OSC L
OSC R
TONE
TO ST1
TONE ST1 CTL
OSC
CAL
-30
CAL
OSC
LEVEL
GUEST
PHONES
STUDIO
PHONES
GUEST
PHONES L
STUDIO
SPEAKER L
STUDIO
PHONES L
GUEST
PHONES R
STUDIO
SPEAKER R
STUDIO
PHONES R
OSCILLATOR/
SLATE OSCILLATOR
CONTROL CIRCUIT
TO INTERUPT
OSC L OUTPUT
EBU TONE
SLATE
CTL
SLATE/TALKBACK
CONTROL
SLATE
EXT MON L
EXT MON R
PROD TB I/P
EXT
VCA
VCA
VCA
CTL
DIM
MUTE
LEVEL
C/ROOM MON
THESE SIGNALS ARE
ROUTED FROM THE
ST MODULE AND
THE MONITOR MODULE
ST1 MON
AUX 4 MON
TALK
TO
STUD
&
PROD
TALK
TO
STUD
TALK
TO
STUD
&
PROD
TALK
TO
STUD
TO M/BRIDGE
CLEANFEED R
CLEANFEED L
CLN RTN R
CLN RTN L
OSC ON
FREQ
HZ
1004001k 10k
T/B MIC
TALK TO
STUDIO
ON-AIR
LOCK OUT
4
3
2
1
ST
CLR
4
TALK TD
CLN FD
L
R
L
R
TALK TO CLNFD
AUX 4 L + R
AUX 3
AUX 2
AUX 1