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22 Onyx 1620i
Block Diagram
48V
solo logic
Control
Room
level
Main level
L
R
Mono Channels
Mic
Line
Insert
Gain
solo
Level
Pan
solo
Level
Aux
sends
Pan
Level
Tape
Left
Right
Left/3
Right/4
Aux 1 out
Aux 2 out
Aux 1 level
Phones
Control Room out
Left
Right
Lsum
Rsum
Alt L/3 sum
Alt R/4 sum
Aux Return 3
+
-
Tape
Meter
CD/Tape in
L
R
RUDE
SOLO
LED
Line
Line
Bal
Bal
Talkback Assign
Alt 3/4
CD/Tape
Main
C/R Source
4-Band EQ
3-Band EQ
Phones level
Aux 2 level
to C-R
to Aux1-4
LO MID MID
80 100~2K400~8K12K
HI
Aux 3 out
Aux 4 out
Aux 3 level
Aux 4 level
R
L
pfl
logic
M
ain
aux 1 (po
st)
aux 2 (po
st)
L/3
R
/4
A
lt
aux 1 (p
re)
aux 2 (p
re)
aux 3 (post)
aux 4 (po
st)
aux 3 (p
re)
aux 4 (pre)
afl L
afl
R
R
L
pfl
logic
M
ain
aux 1 (po
st)
aux 2 (po
st)
L/3
R
/4
A
lt
aux 1 (p
re)
aux 2 (p
re)
aux 3 (post)
aux 4 (po
st)
aux 3 (p
re)
aux 4 (pre)
afl L
afl
R
afl L sum
pfl sum
afl R sum
Aux Returns 2 and 4 are identical
Aux
sends
C/R
dim
to FW out
Firewire
I/O
16
Mic: 0 ~ +60dB
Line: -20 ~ +40dB
Firewire
outputs
NOTE: Switches are shown in the default (out) position.
HPF
75 Hz
Low Cut
bypass
Alt 3/4
Main L/R
Alt 3/4
Main L/R
Talkback
Internal
Talkback
Mic
Aux 1
Aux 2
post
pre
post
pre
Aux 3
Aux 4
post
pre
post
pre
Firewire to C/R
FW1 to Ch 15
FW2 to Ch 16
off
C/R to Main
off
afl
pfl
Mic level
+4dBu
C/R
L
C/R
R
Hi-Z
Line
Level
Alt out
Main out
LO
80 2.5K 12K
HIMID
LO
80 2.5K 12K
HIMID
Hi-Z
+
-
Ch 1-2
PK
-20
PK
-20
Stereo
Channels
9-16
L
R
FW
Line
From FW ch. 1
From FW ch. 2
(Ch.15-16
only)
to Main L/R
to Aux 1
L-R mix to FW inputs 15-16
Channels 15-16 to FW inputs 15-16
Main Mix
FW 13
FW 14
Aux Masters 1-2 to FW 13-14
Channels 13-14 to FW inputs 13-14
Post EQ, Post Insert
Pre EQ, Pre Insert
FW Tap
FW Tap
To FW
To FW
mod2
mod1
mod2
mod3
mod2
mod3
-20 ~ +20dB
Gain
Aux Return 1
Level
L
R
Post EQ, Post Insert
Pre EQ, Pre Insert
Line
(+10dB)
NOTE: Modifications (marked MOD above) must be undertaken by authorized LOUD service centers only