APART MA200R Manuale utente
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MANUAL
MA200R
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Safety First!
• Read all documentation before operating your equipment.
• Retain all documentation for future reference.
• Save the carton and packing material even if the equipment has arrived in good condition.
Should you ever need to ship the unit, use only the original factory packing.
• Do not spill water or other liquids into or on the unit.
• Make sure power outlets conform to the power requirements listed on the back of the unit.
• Do not use the unit if the electrical power cord is frayed or broken.
• Always operate the unit with the AC ground wire connected to the electrical system ground.
• Have gain controls on ampliers turned down during power-up to prevent
speaker damage if there are high signal levels at the inputs.
• Do not connect the inputs / outputs of ampliers or consoles to any other voltage source, such
as a battery, mains source, or power supply, regardless of whether the amplier or console is
turned on or off.
• Power down & disconnect units from mains voltage before making connections.
• Do not use the unit near stoves, heat registers, radiators, or other heat producing devices.
• Do not block fan intake or exhaust ports. Do not operate equipment on a surface or in an
environment which may distort the normal ow of air around the unit. If the unit is used in an
Extremely dusty or smoky environment, the unit should be periodically “blown free” of dust.
• Do not remove the cover. Removing the cover will expose you to potentially dangerous volt-
ages.
• Do not drive the inputs with a signal level greater than that required to drive equipment to full
output.
• Do not run the output of any amplier back into another input.
• Do not ground the red output terminal, never connect a red output terminal to another red
output terminal.
• In case of mal-function this device should be serviced by qualied service personnel only.
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Content
1. APart MA200R Mixing Amplier
2. Front Panel
3. Rear Panel
4.Tuner Controls
5. Inside Settings
6. Overview Of The MA200 Series
7. How To Deal With 100V Loudspeakers Systems
8. Technical Specications
9. Block Diagram
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The MA200R is a professional 4 zone PA mixing amplier for commercial and industrial applica-
tions.
Rarely seen on its competitors, all microphone inputs have integrated speech lters and they are
high-class transistor-balanced type, allowing good control of hum and noise over long cables.
He’s able to drive 8-ohm or constant-voltage loudspeaker lines (50-70-100V).
The amplier has integrated radio, 4 microphone inputs, 4 selectable line sources and
one emergency/telephone input.
Mic input 1 is meant to be the main microphone paging input, for its signal can be fed via the
front ¼” TRS phone jack or via a combo XLR3/jack or DIN 5 or euroblock connector at the back.
The MA200R has a three level priority system.
The emergency/telephone input at the back has the highest priority. Its signal goes directly to the
main amplier, bypassing any front control, and an attenuator next to the input sets its level. Micro-
phone input 1 has the second priority level. With the control next to the XLR input, the vox (voice
activated) mute for microphone 1 can be activated and mutes all other signals, except the emer-
gency input. The third level can be activated via a dry contact (“priority over music”) and mutes
all background music inputs only. This contact activates the chime as well, only when a level has
been set using the “chime level” potentiometer.
4 Zones can be individually switched on and off.
Compared to other zone ampliers, the total load (200W) can be drawn in any combination from the
4 zones.
Zone 4 has an extra feature. Via the selectors at the front, you can choose whether this zone
receives back ground music only, messages only, both or none of them.
When any priority has been activated, 24V DC output (max.1A) will be available to activate priority
relays of loudspeaker attenuators or other devices.
When needed, the signals distributed via your MA200R mixing amplier, can be recorded via the
record output.
19” Brackets are shipped along with your amplier.
The MA200R is the all in one device to build larger professional industrial sound applications. You
can insert an extra equalizer (such as the APart PXQ2215) into the signal path or add extra power
amps (APart PA240P), using the pre amp out/power amp in RCA connectors. When shipped a
RCA bridge has been inserted.
The MA200R complies with the CE standards.
1. APart MA200R Mixing Amplifier
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7
1112 13 14 5 4 1
2
3
1) Power switch: Here you can switch the power on and off.
2) Overload indicator: This red LED illuminates when one of the protections have been activated. No or
distorted sound will be heard. This will be in case of overheating, being the result of drawing too much
power from your amplier, or the impedance of the speaker lines connected are below the minimum load
impedance (see17).
3) Level indicators/clip-limit: A green LED will light after powering on. To work within normal conditions the vol-
ume indicator should be kept under 0dB (100%). At -2,5dB a limiter will be activated. This red LED indicates
that the “auto gain circuit” keeps the level below clipping. This is NOT a clip indicator, but an indication of
the “automatic gain control”.
4) Zone selectors: With these selectors you can activate the zone outputs. A green led at the left of the
switches will conrm that you have activated zone 1 to 3. For zone 4, two selectors are available. By means
of those two selectors you can decide to send background music only, spoken messages only, both or none
of them. Two yellow leds will conrm your selection. When you have selected the music only mode for zone
4, there will be silence during paging.
5) Master level control. Here you can adjust the desired volume of the overall signal.
6) Microphone 1 input: This balanced ¼” TRS phone jack has been wired in parallel with the other three input
options for microphone 1 at the back. For satisfying operation, use only one of these inputs at the time for
microphone 1. Microphone 1 can be given a priority over all other inputs by using the VOX priority (see 29).
7) Microphone 1 level control: Adjusts the volume of the microphone connected to one of the four input connec-
tors (1/4” jack, XLR3 combo jack, DIN5 or euro block).
8) Microphone 2 3 level control: By turning each control clockwise the desired level of that input in the total mix
is set. To decrease these levels, turn counter-clockwise. The volumes of the inputs not in use, should be set
fully counter-clockwise. If not, hiss might occur.
9) Microphone 4 / line 4 level control: Adjusts the input signal of the microphone connected to the XLR combo
jack at the back or the line source connected to stereo RCA input 4.
10) “Muted by priority” led: This red led will blink when any priority status has been activated.
11) Music level control: Here you can adjust the level of the line source selected.
12) Line source selector: Select the desired music source to be heard (AUX, CD or TUNER).
13) Bass control: Adjust as per your taste. In reverberant rooms intelligibility can be increased by decreasing
bass. The centre position gives you a at response.
14) Treble control: Adjust the level as per your taste or needs. Adding high frequencies gives brilliance to your
sound. High frequency feedback can be removed by decreasing treble. The centre position gives you a at
response.
2. Front Panel 8 8 9
610
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3. Rear Panel
15) Voltage selector. Set the local voltage: If any doubt, contact your dealer. The unit is shipped with the selec-
tor set to 230VAC.
16) Mains socket: The unit can be connected to the mains circuit by a standard IEC type power cord. This socket
contains a 6,3AT, slow blow fuse. Use a screw driver to ip out the fuse compartment and to replace it by the
same type. When this fuse blows frequently, you should check the speaker load or bring the MA200R to a
qualied service centre. First check whether you didn’t use a quick-blow fuse!
17) Zone 100V loudspeaker outputs: When you need to activate/deactivate separate loudspeaker zones, you
should use these 100V outputs. These connectors should only be used for 100V operation. They are
activated by the selectors at the front (see 4). Don’t use these 100V outputs together with the 8 ohm, 50V
or 70V terminals. The minimum impedance of all 100V loudspeaker lines together should be at least 50Ω
(100Vx100V/50Ω = 200watt).
18) Emergency power supply: You can power the amplier directly from an emergency battery or power supply
supplying 24V DC/20A.
19) Loudspeaker outputs: For low impedance use com and 8Ω. Keep impedance above 8Ω.
For 50, 70 or 100V speaker lines use COM and 50, 70 or 100V terminals.
For 100V operation, the total minimum impedance of the loudspeaker lines should be 50 Ω. For 70V opera-
tion the minimum impedance should be 24,5 Ω and for 50V 12,5 Ω.
Don’t mix the types of speaker connections. Only one at the time should be used, unless you are able to
calculate a combination which does not overload the amplier (example: 100Ω at 100V for a loud zone in
combination with 25Ω at 50V for a quiet zone).
20) 24V DC output: At this terminal (-/+) 24V DC will be available (max. 1A) from the moment a priority has been
activated, to control priority relays of local volume attenuators or other devices.
21) Power amp in / pre amp out: You can send the signal of the pre-amplier to an external device such as an
equalizer (APart PXQ2215) or limiter and feed the treated signal back into the amplier via the power amp
input. From the “pre-amplier out” you can also feed extra power ampliers such as the Apart PA240P. Don’t
forget to feed the signal back into the “power amp in”. When you don’t use this feature, the RCA bridge
should be placed.
22) Tuner output mono: Here you can recover a xed signal of the internal tuner to feed other devices such as
your telephone’s ‘music on hold’ system.
23) Rec. out: When you need a copy of the total mix, you can connect this output to any recording device such
as tape deck, MD recorder, VHS recorder, etc….You can also use this output to feed an extra amplier. This
output level cannot be controlled separately. When you connect your MA200R pre amp out or record out
to a microphone input of another mixing amplier, this input will have signal overload and the sound will be
masked. In this case you should use a line input, a DI-box or other signal levelling device. Never connect
this output to an amplier loudspeaker output!
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15
18 19 20 33 32 28 30 31 27 36
17 21 22 24 25 26 26 27 27 28
23
29
34 35
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24) CD stereo input, 500mV: Here you can feed a line level signal. You have to make your choice with the
selector at the front (see 12). Stereo signals will be summed together.
25) AUX input, 500mV: Use this stereo RCA input to connect a line level source such as CD player, MD player,
BGM computer, etc…. You have to make your choice with the selector at the front (see 12). Stereo signals
will be summed together.
26) Line 4, 200mV / Mic 4 input. Use only one of these parallel wired inputs at the time! To the XLR3 balanced
input you can connect any microphone using a balanced, two wire shielded cable. (1=earth / 2 =hot /
3=cold). For using condenser microphones see 41. The Microphone 4 input is a XLR3/combo jack, which
will accept a normal XLR3 male plug or a ¼” TRS phone jack.
Line 4 is more sensitive than the other line (music) inputs, therefore ideal to connect wireless microphone
receivers.
27) Mic 2 Mic 3 XLR inputs. To the XLR balanced input you can connect any microphone using a balanced,
two wire shielded, cable (1=earth / 2 =hot / 3=cold).
28) Mic 1 XLR / DIN5 / Euro block. Use only one of these parallel wired balanced inputs at the time! See wiring
diagram at the back. These three inputs have been wired in parallel with the balanced jack input at the front.
When you use the APart MICPAT paging microphones, connected directly to the DIN5 input, the signals fed
into the line inputs are muted automatically while paging. The same kind of connection can be made using
the euro block connector. To use “vox mute” see 29.
Phantom power: use condenser microphones see 41
29) Vox mutes all. When you activate “vox mute” by turning this trimmer clockwise to the desired threshold
level, the signal of any Mic1 input has priority. When you don’t need “vox mute”, turn this trimmer fully
counter-clockwise to the “OFF” position.
30) Priority over music contact. By closing the contact of the euro block connector or contacts 4 and 5 of the
DIN5 connector, the signal of microphone 1 only has priority over the music sources (TUNER, CD and
AUX). All other microphones will remain active. The contact closure of the contacts mentioned can give
priority to the other microphone inputs as well. At the same time 24 V DC will be available at terminal 20.
This is very useful when using up to 4 microphones in supermarkets, etc…
31) Chime level. When one of the priority contacts are closed a chime can be activated by turning this trimmer
clockwise to the desired chime level. When you don’t need a chime, turn this control fully counter-clockwise
to the “OFF” position.
32) Emergency / telephone input. Here you can feed the audio source for paging emergency messages, etc..
This input, at line level, has automatic activation above 200mV and has a line transformer to avoid ground
loops (useful for telephone). Please use a balanced, shielded line cable. Connect the HOT signal to +,
the COLD to and the shield to G (when connecting the shield only at the MA200R side, you might avoid a
ground loop, which creates hum and buzz). This signal is directly fed into the main amplier.
No microphones should be connected directly to this input without using a mic to line pre-amplier.
33) Emergency / telephone level. With this potentiometer you can set the desired level of the line level signal
inserted into the priority signal input 32. This level will not be inuenced by the “master” level.
34) FM antenna. This socket has to be used to connect your 75 ohm FM antenna. You can use the shipped in-
door “wire” antenna, but to improve the reception, we advise to install an outdoor FM antenna or to connect
the MA200R to the cable radio network.
Important notice: In case you connect to the cable radio network, we recommend a ground isolator HF
transformer in order to avoid hum (ground loops) or wire only connecting the HOT pin.
35) AM antenna socket. Here, the shipped indoor AM antenna has to be connected.
36) Airow output. This airow output should be kept free at all times! To give the fan a longer life time, he only
starts running when the heatsink reaches a certain temperature.
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4. Tuner Controls
AM / FM mode switch
Each time you press this button, the tuner will switch from FM to AM and the other way round. The actual radio
band will be displayed at the left.
Scan up / down
By pressing “UP” or “DOWN” a few seconds, the tuner will start to search the next/previous radio station with suf-
cient signal (auto scanning). By just pressing “UP” or “DOWN” you work in manual mode. Each time you press,
you change the frequency by 50 kHz for FM and 9 kHz for AM.
Memory scan
By pressing this button the tuner will start to scan across the memory presets. Each preset will be heard for about
three seconds, starting from the next preset, till you reach the preset you where listening to again. To stop this
feature, press “SCAN” again.
Memory set
After you have found a radio station you like, you can save it in a memory. Press “MEMORY SET” and “MEMO-
RY” will appear at the upper right corner. Then select one of the 10 memory locations at the bottom of the front
panel. You don’t have to reconrm. The code of the memory will appear in bigger characters at the right of the
display. The rst memory locations can be selected directly. To select memory 6-10, rst press shift followed by 1,
2, 3, 4 or 5. A total of 10 locations are available for FM mode and 10 for AM mode.
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5. Inside Settings
JP3 JP4 JP5 JP11
Phantom Power
MIC1 : JP3
MIC2 : JP4
MIC3 : JP5
MIC4 : JP11
Phantom on / off jumper
The MA200R has been shipped with these jumpers in the OFF position. For each microphone input a jumper is
available. When you put a jumper to the ON position, phantom power will be supplied to the microphone input
involved so you can use condenser microphones. In this case NO unbalanced jacks should be used! Phantom
power does not damage dynamic balanced microphones.
Power supply fuse (inside the housing)
When this fuse blows, replace it by the same type: 20A quick blow. When this happens frequently, contact your
nearest dealer.
Now you are ready to build your solid sound system and our extra features will be of great help.
Note: In our policy of continuous improvement, changes can appear without prior notice, including the user
manual.
Troubleshooting
No power: Check whether the “on/off” switch is in the on position and whether the power cord has been inserted
properly. If these two have been checked and still the MA200R remains off, the fuse might be blown.
No sound: Check all the wires and loudspeaker selectors.
At least the master and one source should be turned clockwise.
Check whether the pre amp out is connected to the power amp in.
In the worst case your MA200R is in protective mode.
Please check your loudspeaker wiring and loads.
Operate your MA200R within normal conditions.
Distorted sound: Your input signal is too high.
Haven’t you a line level source connected to a microphone input?
You might also be drawing too much power from your MA200R and the loudspeaker load might
be too low (minimum 50 Ohm for 100V use).
Check the speaker wiring and load with an impedance tester. Turn down the master level.
Hum and buzz: Please check your wiring and grounding, maybe you created a ground loop.
See that all equipment linked are drawing power from the same power supply.
Your radio might get its signal from the cable radio. In this case you have created a ground loop
and a ground loop isolator between the cable signal and your radio antenna input will be the
solution.
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MA200CDR • High quality 200 Watts 100 Volt mixing amplier
• Integrated AM/FM tuner and CD/MP3 player
• 4 mic (phantom via internal switch), 4 line inputs
• 3 level priority system, 24V priority output
• Integrated 2-tone chime (adjustable volume)
• 4 output zones. (Zone 4: Mic / music selection)
• Build in dynamic limiter (-3 dB)
• Dimensions: 88 (h) x 430 (w) x 375 (d) mm
MA200R • Same as above, with AM/FM tuner only
MA200 • Same as above, without any music source
6. Overview Of The MA200 Series
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