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PRODUCT  DESСRIPTION

TV modulator MT47 is intended to form TV channels of B/G/D/K/I/L/M/N/Australia standards in VHF and UHF ranges.

TV modulator MT57 is intended to form TV channels of B/G/Australia MONO/STEREO A2 and D/K/I/L/M/N MONO standards in 

VHF and UHF ranges.

Broadcasting signal has double sideband modulation.

The modulators are intended for indoor use only. 

RoHS compliant.

SAFETY  INSTRUCTIONS

Installation of the modulator must be done according local safety standards.

The modulator is powered from mains 230V~. This voltage is dangerous to life. 

Any repairs must be done by a qualified personnel. 

To avoid the electric shock follow these instructions: 

do not remove the cover of the power supply section, without isolating the unit from the mains supply;

do not plug the modulator into the mains supply if the power cord or plug are damaged;

do not plug the modulator into the mains supply until all cables have been connected correctly;

to disconnect the modulator, disconnect plug from mains socket.

the mains socket must be easily accessible;

modulator shall not be exposed to dripping or splashing water and no objects filled with liquids, such as vases, shall be placed on it;

avoid placing modulator next to central heating components and in areas of high humidity;

no naked flame sources, such as lighted candles, should be placed on modulator;

if the modulator has been kept in cold conditions for a long time, keep it in a warm room no less than 2 hours before plugging 

into the mains;

the ventilation should not be impeded by covering the ventilation openings with items, such as newspapers, table-cloths, curtains;

mount the modulator in vertical position with power supply located on the left;

from top, front and bottom of installed modulator must be at least 10 cm free space.

This product complies with the relevant clauses of the European Directive 2002/96/EC. The unit must be recycled or 

discarded according to applicable local and national regulations.

EXTERNAL  VIEW AND  OPERATING  CONTROLS

TV MODULATORS  MT47, MT57

TERRA UAB, 

Draugystes str. 22, LT-51256 Kaunas, Lithuania, Tel.: +370 37 - 31 34 44, fax: +370 37 - 31 35 55 

E-mail: [email protected], http://www.terraelectronics.com

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AUDIO L

 - audio left channel signal input connector (RCA type)

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AUDIO R

 - audio right channel signal input connector (RCA type)

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 VIDEO

 - video signal input connector (RCA type)

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 RF OUT

  - RF signal output connector (F type)

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 RF IN 

 - RF signal input connector (F type)

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 RF OUT  

- RF output signal level regulator

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two-digit LED display

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 POWER 

 - power indicator

9

 - screwdriver

10

 - power cord

11

 - 

AUDIO

 - sound subcarrier deviation regulator (for MT47 only) 

Figure 1. 

v.1

Summary of Contents for MT47

Page 1: ...o central heating components and in areas of high humidity no naked flame sources such as lighted candles should be placed on modulator if the modulator has been kept in cold conditions for a long time keep it in a warm room no less than 2 hours before plugging into the mains the ventilation should not be impeded by covering the ventilation openings with items such as newspapers table cloths curta...

Page 2: ...ee tables 2 11 c after TV system changing modulator sets to first channel of selected TV system see tables 2 11 other settings remains unchanged 2 test pattern generator a press button b switching between OFF and ON by pressing button no test pattern generator OFF t5 test pattern generator ON 3 fine tuning of video carrier frequency a press button b shift video carrier frequency by pressing button...

Page 3: ...5 532 75 533 25 533 75 29 535 25 540 75 541 25 541 75 30 543 25 548 75 549 25 549 75 31 551 25 556 75 557 25 557 75 32 559 25 564 75 565 25 565 75 33 567 25 572 75 573 25 573 75 34 575 25 580 75 581 25 581 75 35 583 25 588 75 589 25 589 75 36 591 25 596 75 597 25 597 75 37 599 25 604 75 605 25 605 75 V 38 607 25 612 75 613 25 613 75 39 615 25 620 75 621 25 621 75 40 623 25 628 75 629 25 629 75 41 ...

Page 4: ...5 237 75 SR3 SR12 72 239 25 245 75 SR13 73 247 25 253 75 SR14 74 255 25 261 75 SR15 75 263 25 269 75 SR16 76 271 25 277 75 SR17 77 279 25 285 75 SR18 78 287 25 293 75 S19 79 295 25 301 75 SYSTEM B G Band Channel Displayed Vision C Audio C E1 01 45 25 50 75 E2 02 48 25 53 75 BI E3 03 55 25 60 75 E4 04 62 25 67 75 E5 05 175 25 180 75 E6 06 182 25 187 75 E7 07 189 25 194 75 BIII E8 08 196 25 201 75 E...

Page 5: ...анал выбранной ТВ системы другие установки остаются без изменения 2 генератор тестового сигнала а нажать кнопку б включение и выключение генератора осуществляется нажатием кнопки no тест генератор выключен t5 тест генератор включен 3 плавное изменение частоты выходного сигнала а нажать кнопку б нажатием кнопки изменяется частота выходного сигнала с шагом 0 25 MHz см таблицу 12 4 соотношение видео ...

Page 6: ...stazioni 1 Canale RF di uscita E02 2 Deviazione della sottoportante 50 kHz quando il livello del segnale audio 1kHz è 775 mV 3 standard B G sottoportante audio 5 5 MHz Preset b5 4 generatore di segnale Test OFF Preset no 5 nessuna deviazione in Frequenza Preset 0 6 rapporto P S 16 dB Preset I6 7 segnale di uscita Output on Preset on 8 Regolazione deviazione sottoportante Preset 0 per MT57 9 Modo A...

Page 7: ...ara modular canales en VHF UHF con los estándares B G D K I L M N Australia El modulador MT57 se utiliza para modular canales en VHF UHF con los estándares B G Australia MONO STEREO A2 y D K I L M N MONO La señal está modulada en doble banda lateral El modulador está destinado a uso interior RoHS compliant INSTRUCCIONES DE SEGURIDAD La instalación del modulador se debe efectuar según las normas de...

Page 8: ...esviación necesaria pulsando el botón ver tabla 13 7 conmutación de modo Estéreo Mono para MT57 a pulse el botón b conmutar entre modo Mono Estéreo pulsando el botón A mono A5 estéreo PROTECCION FRENTE A ACCESOS NO AUTORIZADOS Para prevenir accesos no autorizados presione los botones y simultaneamente dos veces durante 0 5 sec Para volver al modo normal realice la misma operación EL SÍMBOLO LO SE ...

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