Wheatstone TV-80, Техническое руководство

Страница: 75 / 120

V U / O S C I L L A T O R
page 7 – 3
TV80 / Sep 98
External Meter Select
The console’s external/solo meter can select from four external line
inputs brought into the console via the VO module’s rear panel upper
DB-25 connector. NOTE the external signal is automatically inter-
rupted by SOLO/CUE whenever a solo or cue switch is activated
anywhere on the console. The “solo/cue activated” LED illuminates
whenever this occurs.
NOTE there are two sets of VU trimpots associated with the SOLO/EXT
meters. The L/R pair at the top of the VO-80 module calibrates the SOLO/
EXT meters themselves. The “SOLO/CUE” pair at the top of the CR-80
(control room monitor) module sets the level of the solo/cue VU interrupt
feed.
Oscillator Section
A five-frequency built-in test oscillator with ON switch, level
control, and separate assignment switches to all inputs, mix-minus
busses, aux sends, submasters and master modules. Allows the entire
console signal chain to be calibrated from input to output.
Oscillator output may be calibrated by an internal PCB-mounted trimpot
(“CR11”; see Technical Drawings MO-1000 schematic page 80 C-3, and
PCB load sheet page 84 center).
Timer Control
Four pushbutton controls for the console’s digital timer:
AUTO – enables timer restart functions from programmed input
modules
S/S – Start/Stop
RESET - return to zero (if the timer is stopped it will hold at zero;
if it is running it will reset to zero and immediately begin counting up).
HOLD – freezes the timer display (the counter keeps on going);
when released the display catches up to the current count.
OSC
ON
8
0
9
7
6
5
4
3
2
1
0 1
ENABLE
8
0
9
7
6
5
4
3
2
1
0 1
TB
10KHz
5KHz
1KHz
400Hz
40Hz
INPUTS
MXM
AUX SNDS
SUBS
MSTRS
F
R
E
Q
U
E
N
C
Y
A
S
S
I
G
N
EXTERNAL
1 2
3 4
E
X
T
L
R
L
SOLO/EXT
SPARE
R
A
U
T
O
S
/
S
H
O
L
D
R
E
S
E
T
T
I
M
E
R
E
X
T
O
S
C
T
B
M
I
C
METER SELECT
SOLO/CUE
ACTIVATED
O
S
C
V
U
T
R
I
M
VO