Speco PMM-120A Instruction Manual page 4

FRONT PANEL
1) MIC-1 Volume control. Adjusts audio level of MIC-1.
2) MIC-2 Volume control. Adjusts audio level of MIC-2.
3) MIC-3 Volume control. Adjusts audio level of MIC-3.
4) MIC-4/AUX-1 Volume control. Adjusts audio level of MIC-4/AUX-1.
5) MIC-5/AUX-2 Volume control. Adjusts audio level of MIC-5/AUX-2.
6) MIC-6/AUX-3 Volume control. Adjusts audio level of MIC-6/AUX-3.
7) Bass Control. Low frequency tone control.
8) Treble Control. High frequency tone control.
9) Master Volume control. Controls all volume levels simultaneously.
10) Power on/off switch with LED indicator. Illuminates when power is on.
11) Output level indicator. Indicates power output. Do not overload amp.
REAR PANEL
1) AC power cord. AC power cord with three pin plug for a 120VAC 50/60 Hz, power source.
Do not defeat the ground pin.
2) Ground. Cabinet enclosure unit ground.
3) Speaker outputs. Speaker lines must be connected to "COM" and one (and only one) of
the remaining screw terminals.
4) Manual muting terminals. Provides contact closure muting of the AUX-1~3 and MIC-2~6
input during paging.
5) MIC-6 balanced input terminals. Accepts a balanced low impedance microphone signal.
6) MIC-5 balanced input terminals. Accepts a balanced low impedance microphone signal.
7) MIC-4 balanced input terminals. Accepts a balanced low impedance microphone signal.
8) MIC-3 balanced input terminals. Accepts a balanced low impedance microphone signal.
9) TEL / PAGING balanced input terminals. Accepts a balanced telephone paging signal.
10) TEL / PAGING input level control.
11) TEL / PAGING VOX sens. control. Controls the sensitivity of VOX muting of TEL input.
12) MIC-1 VOX on/off switch. MIC-1 inputs include VOX muting switch of the MIC-2~6 and
AUX-1~3 input during paging.
13) AC accessory outlet (Unswitched). Unswitched AC Auxiliary outlet for a 120VAC 50/60Hz
power source.
14) AC fuse holder.
15) MOH output terminals. Provided two MOH outputs 600 Ohm, 1 Volt and 8 Ohm, 1 Watt.
16) MOH output level control. Controls volume of MOH output. (Music on hold)
17) and 18) EQ / MIX input and preamp output RCA jacks. Connects the mixer / preamplifier
stage to the power amplifier stage .The connecting link must remain inserted for normal
operation as a mixer / amplifier. If a sound compressor / limiter, equalizer, or an external
signal processor is used in the sound system, connect the "PREAMP OUT" to the input of
the external processor and the output of the processor to "EQ / MIX IN. The "PREAMP OUT"
is after the tone controls and the master volume control.
Controls audio level of telephone input.
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