Terra MT32 Manual

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 MT32, MT32C
PRODUCT DESСRIPTION
TV modulator MT32 is intended to form TV channels of B/G/D/K/Au/I/L/standards in VHF and UHF ranges.
TV modulator MT32C is intended to form TV channels of B/G/D/K/Au STEREO A2/DUAL/MONO and I/L MONO standards
in VHF and UHF ranges.
Broadcasting signal has vestigial sideband modulation.
The housing of modulators meets more stringent screening requirements according to EN50083-2, class A.
The modulators are intended for indoor use only. Suitable for moderate and tropical climates.
SAFETY INSTRUCTIONS
Installation of the modulator must be done according IEC60728-11 and national 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 disconnecting 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 from the mains completely, disconnect plug from the 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;
before connecting the modulator to multimedia system, be sure that system is installed in accordance to national safety
standards;
devices of multimedia system should have easy access to disconnect them from the mains supply;
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;
do not insert any objects into ventilation openings;
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 top; modulator must be fixed with steel screws
Ø 4-5 mm. The screws are not included in a package.
from top, front and bottom of installed modulator must be at least 10 cm free space.
EXTERNAL VIEW AND OPERATING CONTROLS
8
6
2
1 3 4 5 11
Figure 1. External view of the modulator
12
1 - VIDEO - video signal input connector (RCA type)
2 - AUDIO L - audio left channel signal input connector
10 (RCA type)
3 - AUDIO R - audio right channel signal input connector
9
(RCA type)
4 - RF IN - RF signal input connector (F type)
5 - RF OUT - RF signal output connector (F type)
6 - AUDIO - sound subcarrier deviation regulator
(for MT32 only)
7 - RF LEVEL - RF output signal level regulator
8 - two-digit LED display
9 - control buttons
7
10 - power cord
11 - functional grounding clamp
12 - screwdriver