Marine Radio MPA-2000 Series Configuration guide

MPA‐2000PUBLICADDRESSSYSTEM

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MARINE RADIO CO., LTD.
주/선박무선 Subject : Public Address System Page : (3 / 24)
Date : 2010.12.18 Doc. : MPA-2000_Eng(Rev. 1.0)
(QAS-ADD-008/0/09.09.25) manual\pa\MPA-2000\MPA-2000.doc (MARINE RADIO CO., LTD.)
MRC
Contents
1. General Description ............................................................................................................................... 4
1.1 Features of the PA system .............................................................................................................. 4
1.2 Name of Model ............................................................................................................................... 4
1.3 Outline of Main Unit ........................................................................................................................ 4
1.4 System Configuration ..................................................................................................................... 5
2. Electric Specifications ............................................................................................................................ 5
2.1 Main Unit of PA system ................................................................................................................... 5
2.2 Talk-Back ........................................................................................................................................ 5
2.3 Paging Call ..................................................................................................................................... 5
2.4 Built in Equipment ........................................................................................................................... 6
3. Operation and Specifications ................................................................................................................. 6
3.1 Outline of Main Unit ........................................................................................................................ 6
3.2 Amplifier Unit (PA-122) ................................................................................................................... 7
3.3 Monitor Speaker Panel (PP-122) .................................................................................................. 7
3.4 Radio & Cassette Unit (PR-122, Option) ........................................................................................ 7
3.5 Radio, CD-Player Unit (Option) ...................................................................................................... 9
3.6 Interfaces with Emergency GeneralAlarm Generator .................................................................. 10
3.7 Interface Priority of Broadcasting ............................................................................................... 10
3.8 P/A Remote Controllers ..................................................................................................................11
3.9 System Diagram .............................................................................................................................12
3.10 Interfaces with External Audio Input .............................................................................................13
3.11 Broadcasting with Telephone ...................................................................................................... 13
4. Maintenance and Trouble Shooting ..................................................................................................... 14
4.1 Power Source of system ............................................................................................................... 14
4.2 Speaker ........................................................................................................................................ 15
4.3 Remote Controller ....................................................................................................................... 16
4.4 Microphone of system .................................................................................................................. 16
4.4.1 Connection between terminal board and microphone connector .......................................... 16
4.4.2 Testing of Microphone ............................................................................................................ 16
4.5 Pre and Main-amplifier ................................................................................................................. 17
4.5.1 Pre-amplifier ........................................................................................................................... 17
4.5.2 Main-amplifier ........................................................................................................................ 17
4.6 Setup Method of Main Control PCB ............................................................................................. 17
4.6.1 Priority Selection between W/H controller and main unit ....................................................... 17
4.6.2 Setup microphones stop of Emergency Alarm Generator ..................................................... 18
4.6.3 Setup microphones of talk-back group .................................................................................. 18
4.6.4 Setup of Speaker Control Diode Matrix ................................................................................. 19
4.6.5 Setup of Speaker Selector PCB Jumper ............................................................................... 19
4.7 Setup Power Source Voltage (AC-100/220V) Setup .................................................................... 20
4.8 Setup Power Source Voltage (AC-100/220V) Setup .................................................................... 20
4.9 Connection between Microphone and Speaker in Main Unit ....................................................... 21
4.10 Setup Power Source Voltage (AC-100/220V) Setup .................................................................. 22
5. Installations .......................................................................................................................................... 23
6. PA Shop Test Procedure ...................................................................................................................... 24

MARINE RADIO CO., LTD.
주/선박무선 Subject : Public Address System Page : (4 / 24)
Date : 2010.12.18 Doc. : MPA-2000_Eng(Rev. 1.0)
(QAS-ADD-008/0/09.09.25) manual\pa\MPA-2000\MPA-2000.doc (MARINE RADIO CO., LTD.)
MRC
1. General Descriptions
1.1 Features
This public address system is designed for general broadcasting from specific area and for marine use.
-1. Since the system is completely designed by C-MOS, transistor and semiconductor, performance is
superior to the same rank.
-2. Deal with requirement of the ship, adapted to diode matrix construction.
-3. The construction of the system is carefully designed for convenience of operation and made for interface
from public address system, fire detection system, whistle controller and general emergency alarm
generator.
-4. Since the automatic AC-DC changer over circuit is adopted, therefore the systems excel ability at
emergency situation.
-5. The system is designed about ability of the drip-proof, water-proof, impact-proof and corrosion-proof
because of marine use.
1.2 Name of Model
Item Model Code Specification Etc
Main Unit
MPA-2100 CE 220VAC/24VDC 100W Desk, Top/Wall Mounting Type
CD 220VAC/24VDC 100W W/Radio & CD Player Desk Top/Wall Type
MPA-2200 CE 220VAC/24VDC 200W Desk, Top/Wall Mounting Type
CD 220VAC/24VDC 200W W/Radio & CD Player Desk Top/Wall Type
MPA-2300 CE 220VAC/24VDC 300W Desk, Top/Wall Mounting Type
CD 220VAC/24VDC 300W W/Radio & CD Player Desk Top/Wall Type
Remote
Controller
MPC-1820 A Flush Type
MPC-1821 A NWT Wall Type
MPC-1822 A WT Wall Type
* PA: Public Address,
*GA: General Alarm
1.3 Outline of Main Unit
-1. Main Control Unit (PC-122)
-2. Entertainment Unit (Option)
-3. Amplifier Unit (PA-122)
-4. Power Supply and Monitor Speaker Panel (PS-122)

MARINE RADIO CO., LTD.
주/선박무선 Subject : Public Address System Page : (5 / 24)
Date : 2010.12.18 Doc. : MPA-2000_Eng(Rev. 1.0)
(QAS-ADD-008/0/09.09.25) manual\pa\MPA-2000\MPA-2000.doc (MARINE RADIO CO., LTD.)
MRC
Model Outline Bottom Fixing Rear Fixing
MPA-2100 432(W) x 470(H) x 305(D) 332(W) x 185(D), 4-Ø12 332(W) x 345(H), 4-Ø12
MPA-2200 432(W) x 596(H) x 305(D) 332(W) x 185(D), 4-Ø12 332(W) x 471(H), 4-Ø12
MPA-2300 432(W) x 722(H) x 305(D) 332(W) x 185(D), 4-Ø12 332(W) x 597(H), 4-Ø12
Dimensions(WidthxHeightxDepth)
1.4 System Configuration
1. Audio Input: MIC, Radio, Cassette, Auto-Telephone System, Alarm Generator, Ext Audio etc.
2. Control Signal: Main, remote other signal operating panel.
3. Microphone Relay Unit: Selected audio signal is connected to next unit.
4. Pre Amplifier: That is amplified earlier than main amplification.
5. Main Amplifier: Main Power Amplifier
6. Interface: The unit combines external control signal and main unit.
7. Priority: Audio input signal is selected by the unit.
8. Speaker Selector: The unit selects speaker from front and remote operating panel.
9. Matrix: The unit is fixed to connection of speaker and microphone according to request of owner.
2. Electric Specifications
2.1 Main Unit
-1. Power Output : 100W/200W/300W, etc
-2. Frequency Characteristics : 300 ～5000Hz within 6dB
-3. Distortion & S/N Ratio : less than 5% / more than 50 dB
-4. Source of Power (Single) : AC-220V/100V, DC 24V
-5. Power Consumption (Single) : 16A, per 200W (DC 24V)
: 2.5A per 200W (AC 220V), 5.6A per 200W (AC 100V)
-6. Operating Temperature Range : -10℃～+40℃
-7. Operating Humidity : less than 90%
2.2 Talk-Back
-1. Talk-Back Area : Wing (PORT)
: Wing (STBD)
: Upper Deck FORE
: Upper Deck AFT
: SGR (Steering Gear Room)
: ECR (Engine Control Room)
: CCR (Cargo Control Room)
2.3 Paging Call
-1. All Paging Call : "0"
-2. Group Paging : "8", "9"(Option)

MARINE RADIO CO., LTD.
주/선박무선 Subject : Public Address System Page : (6 / 24)
Date : 2010.12.18 Doc. : MPA-2000_Eng(Rev. 1.0)
(QAS-ADD-008/0/09.09.25) manual\pa\MPA-2000\MPA-2000.doc (MARINE RADIO CO., LTD.)
MRC
2.4 Built in Equipment
2.4.1) Radio Tuner & Cassette Player (Option)
a) Radio Tuner
-1. Receiving System : Super heterodyne System
-2. Receiving Frequency MW (AM) : 531 - 1602 KHz
MW (AM) : 522 - 1629 KHz (Option, Japan User Only)
FM : 87.50 - 108.0 MHz
FM : 76.0 - 90.0 MHz (Option, Japan User Only)
-3. Receiving Sensitivity MW (AM) : less than 30 uV
FM : less than 20 uV
-4. S/N Ratio : more than 50 dB
-5. Intermediate Frequency FM : 10.71 MHz,
MW : 450 KHz
b) Cassette Tape Deck Section
-1. Playback system : 4-Track, Monaural - 2way Playback
-2. Tape Speed : 4.75 cm/s
-3. Wow & flutter : less than 0.18% Wrms
-4. Frequency Characteristics : 63 Hz - 15 KHz
-5. Distortion : less than 5% (with Rated Output)
-6. S/N Ratio : more than 60 dB
2.4.2) CD-Player Section (Option)
-1. S/N Ratio : more than 90 dB
-2. Frequency Characteristics : 10 Hz - 20 KHz
-3. Wow & flutter : Below Measurable Limit
-4. Distortion : less than 5% (with Rated Output)
3. Operation and Specifications
3.1 Main Control Unit (PC-122)
-1. MIC: Micro-Phone Jack
-2. MIC VOL (Micro-Phone Volume): This potentiometer regulates input volume of the microphone of
main unit. (Usually it shall be set to around the middle)
-3. DIMMER: This switch control brightness of the "BUSY" and "POWER" indicator's LED.
-4. BUSY: Broadcasting Indicator.
-5. CALL: When the button is pushed, then alarm oscillator is activated. The alarm signal is 800Hz.
-6. SPEAKER SELECTOR: This switch selects operation of the speaker.
-7. POWER: "ON" and "OFF" Switch of Main Power.

MARINE RADIO CO., LTD.
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Date : 2010.12.18 Doc. : MPA-2000_Eng(Rev. 1.0)
(QAS-ADD-008/0/09.09.25) manual\pa\MPA-2000\MPA-2000.doc (MARINE RADIO CO., LTD.)
MRC
3.2 Amplifier Unit (PA-122)
-1. U/V Meter: That is displayed output power.
-2. FUSE: No.1/2 Amplifier Unit Fuse (15A)
3.3 Monitor Speaker Panel (PP-122)
-1. Main Power Switch
-2. Emergency Power Switch
-3. Monitor Speaker
-4. MONI VOL: The potentiometer controls of volume for monitor speaker
3.4 Radio & Cassette Unit (PR-122, Option)
-1. Power On/Off and Volume Control Switch
-2. Display Window: Display information of radio and cassette player.
-3. EJECTOR: You can change a cassette type using the button.
-4. SEEK: Use scan tuning to automatically scan the stations in the frequency range of a band.
-5. Cassette Type Insert Hole

MARINE RADIO CO., LTD.
주/선박무선 Subject : Public Address System Page : (8 / 24)
Date : 2010.12.18 Doc. : MPA-2000_Eng(Rev. 1.0)
(QAS-ADD-008/0/09.09.25) manual\pa\MPA-2000\MPA-2000.doc (MARINE RADIO CO., LTD.)
MRC
-6. LOC: Attenuation button of reception sensitivity.
-7. ◂◂/▸▸: Tape FF(◂◂) or REW(▸▸) Switch.
-8. BAL: Audio output balance control button.(Impracticable button at this model)
-9. ∧: Radio Frequency Tuning UP button.
-10. ∨: Radio Frequency Tuning DOWN button.
-11. BAND: Radio (AM/FM) Selection or Conversion Button.
-12. ME: You can preset up to 6 stations in a band with the preset buttons "1” to "6".
-13. DISP: Display control button of radio frequency and clock alternatively.
-14. MTL: Metal tape using time.
(1) Broadcasting with cassette tape deck (In case of built in cassette tape deck)
(a) Push the "POWER" switch of the main unit.
(b) Set the "SPEAKER SELECTOR" to "OFF".
(c) Set the "VOLUME" to around the middle.
(d) Set the "MONI VOL" to around the middle of the monitor panel.
(e) Push the tape button of the R/T unit.
(f) Set the "SPEAKER SELECTOR" to desired position.
(g) Operation of the cassette tape deck.
-1. If you search to other part of the tape, please push the FF(∧) or REW(∨) button.
The tape deck does not operate properly, in the course of the operation.
FF(∧): Please push to the button when you want to operate so fast in the moving forward direction.
REW(∨): Please push to the button when you want to rewind the tape so fast.
-2. Ejection: When you try to eject the tape from the cassette holder, if you push this ejector ("5")
button, the cassette tape spring out in ejecting from holder.
(2) Broadcasting of radio program
A. In case of built in radio tuner
(a) Push the "POWER" switch of the main unit.
(b) Set the "SPEAKER SELECTOR" to off.
(c) Set the "VOLUME" to around the middle.
(d) Set the "MONI VOL" to around the middle of the monitor panel.
(f) Operation of the radio tuner.
a) Push the POWER ON/OFF ("8") switch of the radio tuner.
b) "AM/FM”: Push the switch of the desired band on receiving bands selector of the radio tuner.
c) Frequency Turning "UP (ֱ)", "DOWN (ֳ)”: Tune in the desired frequency with the tuning
switch of the radio tuner.
(g) Regulate the VOLUME watching the pointer of the output meter to obtain desired sound volume.
(h) After completion of the above operation, set the "SPEAKER SELECTOR" to the desired
position.
B. In case that the radio tuner is not built in Even if the radio tuner is not built in, by connection of radio
output to the EXT terminal, the broadcasting of radio program becomes possible with operation
similar to above.

MARINE RADIO CO., LTD.
주/선박무선 Subject : Public Address System Page : (9 / 24)
Date : 2010.12.18 Doc. : MPA-2000_Eng(Rev. 1.0)
(QAS-ADD-008/0/09.09.25) manual\pa\MPA-2000\MPA-2000.doc (MARINE RADIO CO., LTD.)
MRC
3.5 Radio, CD-Player Unit(Option)
-1. Volume +/- Button: Volume Adjust (+: Up, -: Down)
-2. MODE Button: Radio Frequency Band Select (AM1 --> AM2 --> FM1 --> FM2 --> FM3)
-3. SCR (Source) Button: Radio Tuner/CD-Player Selection Button
-4. SEL (Select): Time Setup and Adjusting Sound [BAS (Bass), TRE (Treble), BAL (Balance),
FAD(FrontandRear)]
-5. Information Display Window.
-6. MBP (My Best sound Position) Button: Normally uselessness at the system.
-7. D (D-BASS) Button: You can select a clear powerful bass sound
(D-BASS-1 --> D-BASS-2 --> D-BASS-3 --> None --> D-BASS-1)
-8. Ejection () Button of CD-Player
-9. Reset Button: Pressing the reset button will erase the clock setting and some stored contents.
-10. ATT (Attenuate) Button: Quickly attenuating the sound.
-11. SENS Button: Only the stations with relatively strong signal will be tuned in.
-12. Number Button: Receiving the stored station (radio frequency). Press the number button(①to ⑥)
on which the desired station is stored.
a) REP (Repeat Play): The current track will repeat itself when it reaches the end.
b) SHUF (Shuffle Play): Play tracks in random order; you can select to play tracks on the current
disc in random order.
-13. Frequency Select Switch (Located on the bottom of the unit): FM/AM --> 10k/200k (9k/50k)
-14. BTM (Best Tuning Mode) Button: Press "BTM" for 2 seconds. And then, the unit stores stations in
the order of their frequencies on the number button automatically.
-15. DSPL (Display mode change): Press "DSPL" button for 2-seconds, then you can adjust the time.
The clock uses a 12-hour digital indication. Displayable items: Clock/Frequency.
-16. OFF Button: Stop the playback/System off
-17. SEEK/AMS +/- Button: a) CD Mode --> Skip tracks or fast forward/reverse playback.
b)Radio Mode --> Radio frequency selection or searching