Advertisement
TV SOUND MODULATOR
Dear User!
Thank you for your trust in our company, ex-
pressed by buying our product. We believe your new
equipment will meet your requirements and it will jus-
tify your decision through trouble-free operation.
We would like to support you in your work, by
summarizing all the instructions connected with the
installation and use of the unit.
MECHANICAL CONSTRUCTION
The TV SOUND MODULATOR is accomodated
in a standard 1 unit high 19" rack cabinet. The unit is
delivered along with the following accessoires:
1. Cabinet leg
4 ea
2. Fuses
T0.4 A (slow)
M0.63 A (medium)
If the unit is to be built into a rack cabinet, the legs
would impede, therefore they should not be mount.
In
the
rack
cabinet,
MODULATOR should be placed above the respective
TV MODULATOR. Both units together build a stan-
dard TV modulator with two sound carrier system. In
order to assure the proper ventilation, the channel proc-
essor unit pairs should always be separated by a vented
front plate.
When using as a table-top unit, snap the cabinet
legs into the four holes in the bottom plate. The legs
also prevent the units from slipping down when put
onto each other.
To replace the internal fuse or to remove the legs,
after unscrewing the fixing screws, the cover plate can
be taken off.
ELECTRICAL CONSTRUCTION
Input signals of the TV SOUND MODULATOR:
• L, A (left channel or program A), RCA socket
• R, B (right channel or program B), RCA socket
• video, BNC socket
• external vision IF signal, F-type socket
1 ea
1 ea
the
TV
SOUND
1
Output signal of the TV SOUND MODULATOR:
• Standard IF signal with two sound carriers and a
pilot signal locked in phase to the video line sync.
The output connector is an F-type socket.
The connections have to be made with high quality,
low attenuation cables. These cables and cable sets are
included in our product range, too.
In the basic configuration, the unit is composed of:
• mains power supply,
• control unit,
• A2 encoder and modulator unit.
All the units of the CW-3000 series headend incor-
porate an own switched mode power supply. This
power supply is accomodated in the right side of the
unit, under a shielding cover and delivers six supply
voltages: +5V, +8V, +12V, +24V, +40V and -12V. The
mains fuse is mounted on the unit's rear plate.
The secondary fuse is accessible within the unit,
after removing the fuse cover. When replacing a fuse,
the replacement must be of the specified type and rat-
ing!
The simple way of operation and the easy setting of
the parameters is facilitated through a microprocessor
based control unit. To this control unit, the
PROGRAMMER (CW-3081) can be connected
through a front plate socket. The PROGRAMMER
permits checking and/or programming the parameters
of the unit.
On the front plate, two rows of LEDs give informa-
tion on the operation of the unit and the actual settings.
More detailed see in the section "PROGRAMMING".
CW-3130
Advertisement
