Terra MT47 Installation Instructions Manual

Terra MT47 Installation Instructions Manual

Tv modulators
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TERRA UAB, Draugystes str. 22, LT-51256 Kaunas, Lithuania, Tel.: +370 37 - 31 34 44, fax: +370 37 - 31 35 55
E-mail: sales@terraelectronics.com, http://www.terraelectronics.com
TV MODULATORS MT47, MT57
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

1 - AUDIO L - audio left channel signal input connector (RCA type)
2 - AUDIO R - audio right channel signal input connector (RCA type)
3 - VIDEO - video signal input connector (RCA type)
4 - RF OUT - RF signal output connector (F type)
5 - RF IN - RF signal input connector (F type)
6 - RF OUT - RF output signal level regulator
7 - two-digit LED display
8 - POWER - power indicator
9 - screwdriver
10 - power cord
Figure 1.
11 - AUDIO - sound subcarrier deviation regulator (for MT47 only)
v.1

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Summary of Contents for Terra MT47

  • Page 1 7 - two-digit LED display 8 - POWER - power indicator 9 - screwdriver TERRA UAB, Draugystes str. 22, LT-51256 Kaunas, Lithuania, Tel.: +370 37 - 31 34 44, fax: +370 37 - 31 35 55 10 - power cord E-mail: sales@terraelectronics.com, http://www.terraelectronics.com Figure 1.
  • Page 2 SOUND SUBCARRIER DEVIATION SETTING MT47: When input signal level is from 340 mV to 775 mV in both audio inputs, use a regulator (figure 1, position 11) to set the sound subcarrier deviation ±50 kHz. The factory set sound subcarrier deviation is ±50 kHz for an input signal level of 775 mV in both audio inputs.
  • Page 3 581.75 TECHNICAL CHARACTERISTICS 561.25 565.75 759.25 763.75 583.25 588.75 567.25 571.75 765.25 769.75 590.25 595.75 573.25 577.75 771.25 775.75 Type MT47 MT57 597.25 602.75 579.25 583.75 777.25 781.75 604.25 609.75 585.25 589.75 783.25 787.75 Ordering number 12862V1 12863V1 611.25 616.75 591.25...
  • Page 4 Audio subcarrier Video standard НАЗНАЧЕНИЕ ИЗДЕЛИЯ 5.5 MHz ТВ модулятор MT47 предназначен для формирования ТВ каналов в метровом 6.5 MHz PAL, SECAM и в дециметровом диапазонах (стандарты B/G/D/K/I/L/M/N/Australia). ТВ модулятор MT57 предназначен для формирования ТВ каналов в метровом и в дециметровом диапазонах...
  • Page 5 8 - POWER - индикатор напряжения питания 9 - отвертка 10 - шнур питания 11 - AUDIO - регулятор девиации поднесущей звука (только для MT47) ИНСТРУКЦИЯ ПО ИНСТАЛЛЯЦИИ Перед началом работы прочитайте инструкцию по эксплуатации и электробезопасности. Чтобы изменить параметры модулятора, откройте пластмассовую крышку.
  • Page 6 CONFIGURAZIONE DEVIAZIONE DELLA SOTTOPORTANTE AUDIO ≥ 55 dB Отношение сигнал/шум, взвешенный MT47: Quando il livello del segnale di ingresso è compreso tra 340 mV e 775 mV, utilzzare il regolatore audio (fig.1, po- Потребляемая мощность 198-250 V~ 50 Hz 3 W 198-250 V~ 50 Hz 4 W sizione 11) per regolare la deviazione della sottoportante audio ±50 kHz.
  • Page 7 DESCRIZIONE DEL PRODOTTO DESCRIPCIÓN DE PRODUCTO Il modulatore da interno MT47 è in grado di generare un canale TV in standard B/G/D/K/I/L/H/M/N/Australia nella banda UHF e VHF. El modulador MT47 se utiliza para modular canales en VHF/UHF con los estándares B/G/D/K/I/L/M/N/Australia.
  • Page 8 Posibilidad de configurar la desviación estándar ±50 kHz de la subportadora de audio cuando el nivel de entrada es de 340 mV a 775 mV en DESVIACION DE PÒRTADORA DE AUDIO MT47: Cuando la señal de entrada esta comprendida entre 340 mV y 775 mV en ambas entradas de audio, use el regulador ambas entradas de audio (figura 1, posición 11) para ajustar la desviación de la portadora ±50 kHz.

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Mt57

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