Wheatstone TV-80, Technical Manual

Page: 68 / 120

S T U D I O M O N I T O R
page 6 – 2
TV80 / Sep 98
Studio Monitor Module
General
TV-80 audio consoles can be equipped with one or more
SC-80 studio monitor modules. Each of these modules allows the
console operator to send monitor versions of the TV-80 console’s
outputs to a separate studio. Source selection is determined by a
set of monitor source select switches that match those available on
the console’s control room monitor module. Each studio module
has two outputs: a main electronically balanced line level STU-
DIO output (available as both variable and fixed level), and a
HEADPHONE output available as line level or from a built-in
headphone jack (located underneath the console armrest, to the
extreme right). Each module also features an on-air tally port and
a talkback circuit.
Input channel audio I/O (input/output) connections are made
via two DB-25 multi-pin connectors (“A” upper; “B” lower)
located on the back rear panel of the module. Tally logic and
control signals are made through a DB-9 “Tallies” connector
directly above the rear panel’s two DB-25 audio connectors (see
page 6-6).
Please refer to the signal flow diagram on page 69 of the
Technical Drawings in conjunction with the text of this chapter.
Note the SC-80 studio monitor module utilizes the same printed
circuit boards as the CR-80 Control Room module.
Controls
Studio VU Trims
Two pairs of recessed, front panel trimpots used to calibrate
optionally available Studio Monitor meters.
Talkback Dim Trims
Two pairs of recessed, front panel trimpots are used to set the
dim level of the module’s headphone and studio outputs during
Talkback interrupts.
1 2
1 2
3 4
5 6
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S
U
B
M
A
S
T
E
R
S
1 2
3 4
E
X
T
1 2
3 4
5 6
7 8
A
U
X
S
E
N
D
S
8
0
9
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5
4
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1
0 1
HDPN
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0
9
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1
0 1
STUDIO
M
O
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T
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T
S
T
TB
MONITOR
SELECT
M
N
MUTE
MUTE
D
E
F
E
A
T
D
E
F
E
A
T
SC
MASTERS
L
STUDIO
R
L
R
I
M
T
R
I
M
D
HDPN
L
STUDIO
R
V
U
T
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I
M