Applications And Accessories; Setting Up The Amplifier - Monacor PA-5240 Instruction Manual

•
No guarantee claims for the device or li-
ability for any resulting personal damage
or material damage will be accepted if
the device is used for other purposes than
originally intended, if it is not correctly con-
nected or operated, or if it is not repaired
in an expert way .
If the device is to be put out of
operation definitively, dispose of
the device in accordance with local
regulations .
3 Applications and
Accessories
The amplifiers PA-5240 and PA-5480 have
been specially designed for use in 100 V PA
systems . 100 V outputs for up to five speaker
zones are available . The volume of these
zones can be individually adjusted . To the
five input channels which can be mixed with
one another, microphones (channels 1 – 4)
or devices with line level (channels 2 – 5) can
be connected .
One of the following MONACOR inser-
tions can be installed into the insertion com-
partment (1):
PA-1120DMT Message storage with timer
AM / FM tuner and
PA-1140RCD
CD / USB player
Internetradio, DAB / FM tuner
PA-1200IRD
and USB player
The PTT desk microphone PA-5000PTT from
MONACOR has been specially designed as a
separate accessory for these amplifiers . The
microphones PA-5000PTT can be connected
to the terminal strips (34) of channels 2 – 4 .

4 Setting up the Amplifier

The amplifier has been designed for installa-
tion into a rack (482 mm / 19"), however, it
can also be used as a table top device . In any
case, air must be allowed to pass through all
air vents to ensure sufficient cooling of the
power amplifier .
4.1 Installation into a Rack
For installation into a rack, 3 rack units
(133 mm) are required . To prevent top-heav-
iness of the rack, the amplifier must be in-
serted into the lower part of the rack . The
front panel alone will not be able to secure
the device; side rails or a base plate must be
additionally provided .
The hot air blown out at the side of the
amplifier must be dissipated from the rack;
otherwise, heat will accumulate in the rack
which may not only damage the amplifier
but also other devices in the rack . In case of
insufficient heat dissipation, install a ventila-
tion unit into the rack .
5 Installation
All connections should only be made by quali-
fied skilled personnel . For this purpose, always
switch off the amplifier!
Numerous connections, e . g . those for
the speakers, are underneath the protective
cover (15) . For connection, unscrew the cover .
WARNING Do not operate the amplifier
without the protective cover
(15) . During operation, there is a
hazard of contact with a voltage
up to 100 V at the speaker ter-
minals (16, 25) . After connect-
ing, screw on the cover again so
that the terminals are protected
against any accidental contact .
5.1 Speakers
1) Either connect 100 V speakers for the five
speaker zones to the terminals ATT ZONE
OUTPUTS (16)
Attention! In each speaker zone, the
maximum load by the 100 V speakers
may be 100 W RMS; however, the total
admissible load of all speakers must not
be exceeded:
240 W RMS (PA-5240) or
480 W RMS (PA-5480)
or a speaker group of a total impedance
of at least 8 Ω to the terminals COM (22)
and 8 Ω (23) . The zone attenuators (6) will
not affect this output .
Always observe the correct polarity when
connecting . For the 8 Ω connection, the
terminal COM is the negative pole and the
terminal 8 Ω the positive pole . The positive
connection of the speaker cables is always
specially marked .
2) Additional 100 V speakers, the volume of
which is not to be attenuated by the zone
attenuators (6) can be connected to the
terminals COM (22) and 100 V (25) . How-
ever, the total load of these speakers and
the speakers at the terminals ATT ZONE
OUTPUTS must not be exceeded (see note
"Attention" above) .
5.2 Microphones
Four microphones can be connected, one
microphone each to the channels 1 – 4:
1 . In channel 1 to the jack MIC (7) on the front
panel or to the combined XLR / 6 .3 mm jack
INPUT-1 (21)
A signal in channel 1 will take priority
over all other signals, i . e . the volume of
the other signals will be automatically at-
tenuated if you speak into the microphone
of channel 1 .
2 . In channel 2 to the combined XLR / 6 .3 mm
jack INPUT-2 (20) or to the terminal strip
(34) below it*
3 . In channel 3 to the terminal strip IN-
PUT-3 (34)*
4 . In channel 4 to the terminal strip IN-
PUT-4 (34)*
* Note: When the talk button of the microphone
PA-5000PTT is pressed, the volume of the AUX
channel will be automatically attenuated .
To facilitate handling, it is possible to remove
the terminal strips (34) from their plug-in con-
nections on the device and to reinsert them
after connection .
1) Connect the microphones to the corre-
sponding connectors .
Connect the microphones PA-5000PTT
to the terminal strips (34) so that it will be
possible to activate the chime from these
microphones and to attenuate the volume
of the AUX channel .
2) In channels 2 – 4, the button "Mic / Line"
(35) must not be pressed when connecting
a microphone so that the input is switched
to microphone sensitivity .
3) When using a phantom-powered micro-
phone, press the corresponding button
"P .H . +18V" (36, 37) . The microphone
will then be supplied with 18 V by the
amplifier .
Attention! With the phantom power
connected, unbal anced microphones
must not be connected to the corre-
sponding inputs; these microphones may
be damaged .
5.3 Devices with line output
Six devices with line output (e . g . MP3 / CD
player, tuner, tape deck) can be connected,
one device each to channels 2 – 4 and three
devices to the AUX channel .
1) Connect the devices to the corresponding
connectors:
– combined XLR / 6 .3 mm jack INPUT-2 (20)
– terminal strips INPUT-2 to INPUT-4 (34)
– RCA jacks AUX INPUTS (19)
When connecting a stereo device to the
combined XLR / 6 .3 mm jack (20), use a
stereo mono adapter (e . g . SMC-1 from
MONACOR) and an adapter cable (e . g .
MCA-300 from MONACOR); otherwise,
the signals of the stereo centre will cancel
out each .
2) In channels 2 – 4, press the corresponding
button "Mic / Line" (35) when connecting
a device with line level so that the input is
set to line level . To ensure that the phan-
tom power is deactivated, the correspond-
ing button "P .H . +18V" (36) must not be
pressed .
3) For the AUX channel, use the selector
switch "5 6 7" (3) to select the device to
be heard .
5.4 Inserting an equalizer or
another device
For external effects on the sound, e . g . an
equalizer can be inserted via the jacks IN-
SERTS (18) .
1) Connect the input of the device to the
jack PRE OUT .
2) Connect the output of the device to the
jack AMP IN .
Note: The signal in the amplifier will be interrupted
if merely the jack AMP IN has been connected, if
the inserted device has not been switched on, or
if it is defective or not correctly connected . In this
case, the speakers connected will remain mute .
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