12
PA Mixing Amplifier
These instructions are intended for installers
of PA systems (chapters 4 to 7) and for users
without any specific technical knowledge
(chapter 8) . Please read the operating instruc-
tions carefully prior to operating the unit and
keep them for later reference .
All operating elements and connections de-
scribed can be found on page 2 .
1 Control Elements
and Connections
1.1 Mixing amplifier PA-2410Z / 2420Z
1
Cover of the insertion compartment;
an insertion module from MONACOR can
be installed here, e . g . tuner, CD player,
message storage module
2
Volume controls, one each for the input
channels 1 – 5
Control 1 can also be used to adjust the
volume for the desk microphones PA-
4300PTT .
Control 2 can also be used to adjust the
volume for the zone paging microphones
PA-2400RC . (Exception with the PA-2410Z:
☞
chapter 8 .7 .1)
3
Bass controls and treble controls to adjust
the sound, one each for the input chan-
nels 1– 5
4
Bass control and treble control to adjust
the tone of the insertion module
5
Button CHIME to trigger the chime
6
Control to adjust the volume of the chime
7
Control TEL PAGING to adjust the volume
of a signal source at the input terminals
PAGING IN (24)
8
Control to adjust the volume of the siren
9
Buttons to switch the siren tones on and
off
repeated wailing, (tone rising and
falling)
rising tone followed by continuous
tone
10
LED indicator PROTECT; will light up in case
of an amplifier failure (e . g . due to overload
or overheating)
11
Control MASTER to adjust the total volume
12
LED indicators
STAND-BY: standby mode
POWER: operating mode
13
POWER switch
14
PA-2420Z only:
Zone selection buttons
Z1 – Z20: zones 1– 20
ALL:
all zones of the corresponding
row of buttons
When the button is pressed
again (for 2 seconds), the previ-
ous selection will apply .
15
Output level indicator
CLIP: Overload indicator
16
PA2410Z only:
Volume selection switches, one each for
the zones 1–10
OFF: Zone off
17
Mains connection cable for connection to
a socket (230 V/ 50 Hz)
18
Plug-in screw terminals (removable) for the
100 V speakers of the zones 1–10 or 1– 20
Important:
Each output can only be loaded with
an RMS power of max . 60 W (PA-2420Z) or 30 W
(PA-2410Z) . The total load of all 100 V speakers
connected must never exceed 240 W .
19
Screw terminals AC POWER REMOTE to
switch the amplifier on and off by remote
control via a normally open contact
20
Screw terminals DC POWER for emergency
power supply (
⎓
24 V))
21
Plug-in screw terminals LOW IMP for a
low-impedance speaker with a minimum
impedance of 4 Ω , regardless of the zone
selection
Important:
Never use this output simultaneously
with the 100 V outputs (18, 22); the amplifier may
be overloaded .
22
Plug-in screw terminals HIGH IMP to con-
nect 100 V speakers, regardless of the zone
selection
Important:
The total load – load at this output
plus the total load by the speakers at the zone
outputs (18) – must never exceed 240 W; other-
wise, the amplifier may be overloaded .
23
Fuse for the 24 V emergency supply unit
Always replace a blown fuse by one of
the same type!
24
Plug-in screw terminals PAGING IN to con-
nect a signal source with line level out-
put for announcements of higher priority
(
☞
table in fig . 5 in chapter 3)
25
Plug-in screw terminals E / M MESSAGE
CONTROL for connection of a normally
open contact to trigger an announce-
ment (e . g . emergency announcement)
when a message storage module (e . g .
PA-1120DMT) is installed .
26
6 .3 mm jacks PRE OUT and AMP IN to in-
sert an audio processing unit, for example
When the jack AMP IN is used, the internal
signal connection to the power amplifier
will be interrupted .
27
Connections REC (RCA jacks) for a recorder
L (left) and R (right) jacks are provided
for stereo recorders . Since the amplifier is
monophonic, the signals at the two jacks
are identical .
28
Inputs LINE IN (RCA jacks) for the chan-
nels 4 and 5; L (left) and R (right) jacks are
provided for stereo signal sources . Since
the amplifier is monophonic, the stereo
signals are internally combined to a mono
signal .
29
Inputs for microphone level and line level
(combined XLR / 6 .3 mm jack), balanced;
one input each for the input channels 1– 3
30
Controls GAIN to match the input gain
with the signal source (microphone level
to line level); one control each for the input
channels 1– 3
31
Switches PHANTOM POWER, one each
for the input channels 1– 3; when the
switch is engaged, a DC voltage of 15 V
for phantom-powered microphones will
be available at the XLR contacts of the
corresponding input jack (29)
Caution:
To prevent loud switching noise, use the
switch only when the amplifier has been switched
off, the outputs have been muted or the control
MASTER (11) has been set to “0” . Do not connect
any microphone (or other type of signal source)
with unbalanced signal output when phantom
power has been activated; otherwise, the mi-
crophone (or other type of signal source) may
be damaged .
Control Elements and Connections
11 Mixing amplifier PA-2410Z / 2420Z 12
12 Desk microphone PA-4300PTT 13
13 Zone paging microphone PA-2400RC
Priority of the Insertion Module
51 PA-2400RC: Locking message M6 15
72 Mono audio sources, microphones 15
721
73 Stereo audio sources 16
74 Desk microphone PA-4300PTT 16
75 Zone paging microphone PA-2400RC 16
751
76 Recorder, monitor system 16
77 External signal processing 16
78 Switching inputs 16
781
Remote-controlled switch-on
and switch-off 16
87 Zone paging microphone PA-2400RC 18
871
Additional amplifier in the PA-2410Z 18
Additional settings at the PA-2400RC 18
Protective Circuits and
Fault Indication
101 Amplifier 19
102 Zone paging microphone PA-2400RC 19
103 Desk microphone PA-4300PTT 19
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