26
Onyx 1640i
Block Diagram
Ext TB
solo logic
Control Room level
Main level
L
R
Insert
HPF
Level
Pan
solo
Aux
sends
Level
Tape
Left
Right
Sub 1 out
Sub 2 out
Aux 1 out
Aux 1 level
Phones
Control Room out
Left
Right
L sum
R sum
Sub 1 sum
Sub 2 sum
Aux 1 sum
Aux Return 1
Aux 1
Tape
Meter
RUDE SOLO LED
Assign
Talkback Assi
gn
Talkback mic
Internal
External
Sub 3-4
Tape
Firewire to Main
C/R
Source
4-Band EQ
Phones level
to Phones
to Aux 1-6
LO
MID
M
ID
80
100~2K
400~8K
12K
HI
afl L
pfl
afl R
Mono out
Mono level
Aux 2 out
Aux 2 level
Aux 2 sum
Aux 2
Aux 1 solo
Aux 2 solo
(Aux 3-6 identical)
Sub 1-2
from Sub outputs
1
2
3
4
Sub 2
Sub 1
to C/R Source
switches
(Sub 3-4 identical
)
Sub 1 level
Sub 2 level
Subs to Main
L
L
R
R
1
2
R
L
aux 6 (pre)
aux 5 (pre)
pfl
logic
Main
4
3
Sub
aux 6 (post)
aux 5 (post)
aux 4 (pre)
aux 3 (pre)
aux 4 (post)
aux 3 (post)
afl R
afl L
2
1
aux 2 (pre)
aux 1 (pre)
aux 2 (post)
aux 1 (post)
CR in L
CR in R
R
L
aux 6 (pre)
aux 5 (pre)
pfl
logic
Main
4
3
Sub
aux 6 (post)
aux 5 (post)
aux 4 (pre)
aux 3 (pre)
aux 4 (post)
aux 3 (post)
afl R
afl L
2
1
aux 2 (pre)
aux 1 (pre)
aux 2 (post)
aux 1 (post)
CR in L
CR in R
L
R
Aux Return 3
Return 1 to Aux 5
L/
R
1/2
3/4
dim
C/R
L Insert
R Inser
t
L
R
Level
Aux Return 2
Return 2 to Aux 6
Level
L
R
Aux Return 4
Level
Firewire I/O
to FW
outs and
D-sub Outs
Channel
Direct outs
Firewire to C/R
Main outs
75 Hz
afl
pfl
on
off
on
off
Mic level
+4dBu
Subs
Main
Sub 3-4
Sub 1-2
Control Room
Main
Ext TB Mic
Int TB Mic
post
pre
post
pre
NOTE: Switches are shown in the default (out) position.
in
EQ o
u
t
Low Cut
bypass
Mute
Talkback
C/R L
C/R R
AGC
solo level
PK
0 -20
+10
Tape in
L
R
R
L
to C/R Source
switches
L
R
Level
Main out
48V
Mono Channels
Mic
Lin
e
Gain
+
-
Direct out
Mic: 0 ~ +60dB
Line: -20 ~ +40dB
Hi-Z
Mic
Hi-Z
+
-
Lin
e
Ch 1-2
Firewire
Analog
Mono FW
stream from
computer
FW 9-14
Post
Pre
FW/D-Sub Tap
L-R mix to FW inputs 15-16
Channels 15-16 to FW inputs 15-16
Aux Masters 1-6 to FW 9-14
Channels 9-14 to FW inputs 9-14
Subgroups 1-4 to FW Inputs 5-8
Channels 5-8 to FW inputs 5-8
Main
L
R
16
assign to Main