Wheatstone TV-80, Technical Manual

Page: 28 / 120

M O N O M I C / L I N E I N P U T
page 2 – 4
TV80 / Sep 98
Mono Mic/Line Inputs
General
MI-80 input modules accept and output mono signals. Each
module can select one of four mono source signals: two are mic
level and two are line level.
Each input channel consists of three separate panels mounted
in a single mainframe position:
a) the main module itself (far right),
b) a fader panel directly in line with and below the main
module (physically separated by the console’s alpha-
numeric source display strip), and
c) an (optional) 8-bank preselector switching panel located
directly above each channel in the meterbridge overbank
section.
Input channel audio connections are made via a DB-25 multi-
pin connector (“A” upper) located on the back rear panel of each
main module. Input channel logic and control signals are made
through three DB-9 connectors (“MUTE FOLLOW”, “MIC
LOGIC”, and “MACHINE CONTROL”) also mounted on the
same rear panel.
Note console preselector panel switches do not control audio
directly. Instead, they send control pulses to separate rackmounted
switching cages (“Smart Select
®
” cages). Actual audio source
signals are wired directly to the rackmounted Smart Select ® cages
(via rear DB-25 connector pairs); the cages then feed selected
source signals back to the main input modules.
The signal flow diagram on page 8 of the Technical Drawings
is helpful in clarifying the information presented in this chapter.
You are encouraged to refer to it in conjunction with the text that
follows.
PRESELECTOR
FADER PANEL
8
0
9
7
6
5
4
3
2
1
0 1
8
0
9
7
6
5
4
3
2
1
0 1
8
0
9
7
6
5
4
3
2
1
0 1
8
0
9
7
6
5
4
3
2
1
0 1
8
0
9
7
6
5
4
3
2
1
0 1
8
0
9
7
6
5
4
3
2
1
0 1
8
0
9
7
6
5
4
3
2
1
0 1
8
0
9
7
6
5
4
3
2
1
0 1
A
U
X
1
A
U
X
2
A
U
X
3
A
U
X
4
A
U
X
5
A
U
X
6
A
U
X
7
A
U
X
8
O
N
O
N
O
N
O
N
MIC
LINE
1 2
1 2
INSERT
Ø
1 2
1 2
1 2
3 4
5 6
7 8
EQ SOLO
CUE
P
R
E
P
R
E
P
R
E
P
R
E
C
LT
RT
P
A
N
1K
L
O
W
-
+
3
0
3
11 11
dB
dB
Hz
900
600 250
60
450
M
I
D
3
0
3
11 11
dB
Hz
7K
5K 2K
500
8K 400
3.5K
H
I
16 16
-
+
dB 16 16
LPF
HPF
3
0
3
11 11
15K
10K 4K
1K
16K 800
7K
-
+
dB 16 16
P
K
9K
35
5K
25
6 2 0
8 1
5 1
70
26K
7K . 2
.5K 3
Hz
H I/LO
V+
40
PAD
7
7
60
5
4
dB
5
0 5
5
M
I
C
MI
L
I
N
E
dB
+
15
9
1
1
6
3
6
2
9
-
5
12
S
U
B
M
A
S
T
E
R
S
MASTERS
ASSIGN
8
15
12
-
-
-
-
3
0
3
+
-
6
9
VU
0
5
10
15
20
30
40
50
60
70
00
MONO INPUT
READY
MUTE
A
B
C
D
M
I
X
M
I
N
U
S
8
7
6
5
4
3
2
1
M
U
T
E
G
R
O
U
P
S
ON