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14
shields preferably insulated and grounded at one end
only. Low level audio wiring should be kept away
from AC power and signal light
circuits.
Connect a
ground to the heavy bus wire adjacent to the audio
terminal block.
Microphone and Turntable
Connect microphone and turntable according to the
table of connections on 5TB
1.
All microphones in-
stalled in the same studio should be phased alike. The
input transformers (5Tl, 5T2, 5T3) are connected
for a balanced 150-ohm input. If a 600-ohm input is
desired, reconnect by removing jumper between ter-
minals 1 and 3 and 4 and 6; jumper terminals 3 and
4. Remove ground connection from terminal 5 and
connect to terminal 4.
If a 37.5 ohm input is desired, remove the jumpers
between terminals 1 and 3, and 4 and 6 and jumper
1 and 5, and 2 and 6. A center tap is not available
for this impedance.
Remote Line and Network Inputs
A 600/600 ohm pad 5ATll having a loss of 30 db
is inserted ahead of the input transformer 5T4. This
pad may be modified or removed if so desired. The
input transformer 5T4 is connected for 600-ohm in-
put. If desired it may be reconnected for 150 ohms by
STO MON SPK
MIC
removing wire connected to terminal
1
and connect-
ing it to terminal 2, and removing wire connected to
terminal 6 and connecting it to terminal
5.
Line Equalizer
An Equalizer, such as the RCA BE-2A, MI-11752,
for compensating the frequency response of the Re-
mote and Network Lines may be connected to ter-
minals 25 and 26.
Program Line
The program output line is connected to terminals
53 and 54. A 6 db isolation pad 5AT12 having the
impedance of 600 ohms is provided within the con-
solette.
Output To External Monitor Amplifier
An external monitor may be connected to a built-in
pad 5AT13 having an output impedance ·of 600 ohms
by making connections to terminals 55 and 56.
External Input To Monitor Amplifier
The 600-ohm impedance output of an off-air tuner
may be connected to terminals 31 and 32 for off-air
monitoring of program.
MIC
2
STUDIO
MIC
3
MIC
4
ON
EXT MON
LINE OUT
~:E~E:a~OTUTELE~~l-_-ft----i
?
~ i~ ~
;
~ ~ ~
NET
0
0
0
0 0 0
0 0 0
TAPE
I
CONSOLE
BC-3C
AUXILIAR....
I
,
AIR
I
!
r--------
8~'
,
I
,
I
r- __
1.. _ _ _ _
- - - - - - 1
I
STUDIO CONTROL
I
8
T
<2
I
ROOM
I
•
L
.
_ _ _ _ _ _ _ _
SOURCE
8-481432-2
Figure 17-Typical Ins'al/ation for One S'udio
\
ANNOUNCE BOOTH
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