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A-5000 / Nov 98
M O N O M I C I N P U T
Mono Mic Input (MM-5000)
Module Overview
MM-5000 modules are for microphone input signals (-50dBu
nominal). Each module accepts two mono sources: A and B, switched
at the top of the module. Phantom power (+40VDC) is available at both
input ports; it may be selectively activated by an internal dipswitch (the
factory default is OFF). Recessed front panel multi-turn trimpots
(range 38dB) adjust input levels.
Example: with a microphone input of –60dBm @150
Ω
at the port, gain
trim can set levels from -22dBu to +16dBu (note maximum preamp gain is
+76dB).
An insert point (+4dBu balanced) is provided: it is post-trim, pre-
fader and may be internally bypassed, which is the factory default
setting.
Output switches assign the selected source signal to any combina-
tion of the console’s four stereo outputs: PGM (program), AUD
(audition), AUX (auxiliary) and/or UTL (utility). When the module is
assigned to PGM and turned ON, a red “On- Air” LED illuminates just
above the output assign switches.
Each input module can feed one or both of the internal mix-minus
busses and the selected send can be pre or post fader and ON/OFF
switch. Front panel tallies let the operator know at a glance which
busses are assigned.
The rotary PAN control pans the module’s monophonic signal right
and left within the assigned stereo output fields. Level is set by a Penny
& Giles long-throw fader. The fader can be optionally equipped with
an EFS (“European fader start”) style bottom-of-travel switch which
will automatically activate the module’s channel ON and OFF switches
when the fader is run up and down. Any functions these switches have
been programmed to perform (see immediately following) will also
take place when this happens
The channel ON (red) and OFF (amber) switches are at the bottom
of the module. In addition to being controlled remotely, these can also
be programmed (via internal PCB-mounted dipswitches) to perform a
variety of console control functions, including control room and studio
mutes, talkbacks, tallies, and timer restart.
SOURCE
PGM
AUD
AUX
UTL
A
B
0
5
10
15
20
30
40
50
60
70
00
L
R
C
MXM
1
2
PA N
ON AIR
MIC TRIM
A
B
ASSIGN
MONO INPUT
ON