FORMULA SOUND PM-80R [4/8] Pm 80r
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FORMULA SOUND PM-80R [4/8] Pm 80r

FORMULA SOUND PM-80R [4/8] Pm 80r
PM-80R
PM - 80R Master Module
The master module contains all the electronics
required for the various summing amplifiers, output
stages, VU meters, etc. The majority of
connections are on the rear of the unit.
-20
-15
-10
-7
-5
-3
-1
0
+1
+3
+5
+8
The monitoring section is very easy to understand.
Visual monitoring is provided by the led bar graph
meter. Audio monitoring is via a powerful stereo
L
R
POWER
dB
MUSIC MUTE
headphone amplifier designed to drive phones of
32 ohms or greater. Connection is via the 3 pole
jack socket labelled PHONES. The meter and
the
phones output are both connected to the same
signal so what you see is what you hear.
If any channel MON switched is depressed the
Monitor buss is connected to the phones amp and
meter. If no MON switch is depressed the main
AUX MASTER
BOOTH
9
8
7
6
5
4
3
2
MASTER
ZONE
MONITOR
output is monitored.
AUX MASTER - This master control adjusts the
output level of the signals derived from the Aux
sends on the input modules. The outputs are via 2
1/4" jack sockets. A mono signal may be obtained
by using the left output socket only.
BOOTH - This control adjusts the level of the booth
output which is a mix of the channels routed via
the music buss. The outputs are via 2 1/4" jack
sockets. A mono signal may be obtained by using
the left output socket only.
ZONE -The zone output is almost identical to the
main except that the output is unbalanced and not
available to the monitoring section The outputs are
via 2 1/4" jack sockets. A mono signal may be
obtained by using the left output socket .
1
0
FORMULA SOUND
PHONES
MASTER - The fader sets the output level of the
main balanced output available via 3 pole XLR
connectors on the rear panel. A mono output is
also available via a 1/4" jack socket.
RECORD OUTPUTS 2 - gold plated phono sockets are provided for the connection of stereo recording
equipment. Record outputs are unaffected by the master fader.
SUB BASS OUTPUT - A mono output via a 1/4" jack is provided for driving a sub bass loudspeaker
system to enhance low frequency performance. The filter allows frequencies below 70Hz to pass
through. An internal jumper located on PC-396 allows higher bass output if required.
MUSIC MUTE - To help comply with fire regulations a music mute facility has been included. The fire
alarm panel needs to provide a fully floating pair of contacts to join the two pins on the control connector.
INSERTS MIC MIX - Insert sockets in the form of 3 pole 1/4" jacks are provided for the connection of
external signal processing equipment to any combination of channels routed via the Mic buss. Internal
jumpers allow the inserts to be disabled. Located on the rear panel the connections are:-
Tip = send (mixer output) Ring = return (mixer input) Body = common (ground)
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