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LOCAL OSCILLATOR SYSTEf1
The local oscillator is a self-leveling
W
einbridge oscillator
with a freq. range continuously variable
f
rom 20Hz to 20KHz.
Depressing either the X10, the X100, or the X1000 button will
turn the oscillator ON and set the range.
The OSC FREQ kncb
varies the frequency through each range.
The OSC LEVEL controls the output from + 12 Db to - 50 Db.
The output of the local oscillator is always available at the
patch bay OSC
O~T
jack.
The output of the local oscillator is controlled by the MIX
and the TKS switches.
The MIX switch routes it to the MI
X
outputs, and the TKS switch routes it to the CHANNEL OUTPUTS.
Provisions have been made for using an external sweep genera
-
tor or distortion measuring equipment when the local oscilla-
tor is turned OFF.
The external generator is fed into the
OSC OUT jack in the patch bay and the MIX and TKS switches
will feed the externally generated signal into the system.
METERING
24 VU meters are provided and numbered to correspond to the
same numbered OUTPUT BUSSES. All meters are driven by a
buffer amplifier to eliminate the distortion caused by meter
loading on audio amplifiers.
A trim pot is also included for
exact meter calibration.
The four large central meters numbered 1, 2, 3, 4 always show
the CONTROL ROOM MONITOR OUTPUT.
The meters reflect the BUSS
LEVEL ONLY, they are NOT controlled
b
y
MONITOR LEVEL CONTROLS.
The two large VU meters marked L & R in the central cluster
are switched by the ten push buttons located on the STUDIO
MONITOR module. The meters will then monitor these functions;
AUX
1-2
3-4
5-6
MONO
2MIX
F4MIX
R4MIX
CUE 1
CUE 2
Any
e xte
rnal fun
c tio
n
connec
t
e
d t
o the AUX
input.
SEND BUS SES
1&2
SEND
BUSSES 3
&4
SEND BUS
SES
5
&6
M
ONO
output
STEREO o
utput
FRONT p
a
ir
o
f 4 MIX output
REAR pair
o
f 4 MI
X o
utput
STEREO
CUE
s
yst
e
m 1
STEREO
CUE s yst
e
m
2
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