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Programmable headend amplifier
Important safety instructions
General installation conditions
• Before handling or connecting the equipment, please read this
manual.
• Do not use or install this equipment near water or in very moist
conditions. The equipment may be damaged and electric shock or
fire could occur.
• Do not attempt to open the case of the equipment without unplug it
from the mains. There is risk of electrical shock and/or personal injury
or death to you.
• Do not obstruct the equipment's ventilation system and allow air
circulation around it.
• The equipment must not come into contact with water or even be
splashed by liquids. Do not place containers with water on or near the
equipment if it is not adequately protected.
• Do not place the equipment near sources of heat or in excessively
moisture conditions.
• Do not place the equipment where it may be affected by strong
vibrations or shocks.
How to use the equipment safely
• The powering supply of this product is: 196 - 264V~ 50/60Hz.
• If any liquid or object falls inside the equipment, please contact a
specialized technician.
• Unplug the equipment power cord by gripping the plug only.
• Do not connect the equipment to the mains until all the other
connections have been made.
• The mains socket that is going to be used to connect the equipment
should be located nearby and should be easily accessible.
Description of the electrical safety symbol
• To avoid the risk of electric shock, do not open
the equipment.
• This symbol indicates that the equipment
complies with the safety requirements for
class II equipment.
• This symbol indicates that the equipment
complies with the requirements of CE mark.
NOTE: You have a complete User Guide on our website:
www.televes.com.
Links available at the end of this guide.
Inputs/Outputs/Connections description
The headend amplifier (Fig. 1) is provided with:
1.- UHF1 + V
input
2.- UHF2 + V
input
3.- UHF3 + V
input
4.- FM input
5.- BIII / DAB input
6.- 47-862 MHz input
Introducción
Programmable digital / analogue headend amplifier for use in both single
family buildings or in communal buildings, characterised by: ease of
installation, simple programming, high gain, external programmer, low
consumption powering.
It features 10 input filters to be distributed by software into 3 UHF ports.
The number of filters per input can be selected among three possible
configurations (10-0-0, 9-0-1, 7-2-1, 6-3-1 and 5-3-2), which will be carried
out according to the channels that are received by each antenna (Fig. 2).
These inputs are pre-amplified. Any UHF channel can be selected (21 to
69) for any filter, and each filter can be adjusted for a bandwidth up to 5
channels. (Fig. 3).
Output levels of filters are automatically balanced with a selectable
compensation slope.
UHF inputs disposes of an automatic powering system that is able to
withstand short circuits.
The gain is regulated by an automatic attenuation system in both FM and
BIII/DAB inputs.
The amplifier disposes of a Broadband input (47-862 MHz), intended for
possible expansions in the system, such as the inclusion of a satellite
headend or TDT's.
Using "Reset" button
The "Avant" unit can be programmed before the installation is carried out
and without an input signal, and the levels can be adjusted later without the
use of the programmer, by using the "reset" button located to the left of the
programmer's connector.
To do so, please follow these steps:
Select the adequate parameters for the installation using the programmer
(channels, output level, equalisation slope ...) and press the
button (long press). As the programming is carried out without the input
signal, the adjustment will stop when it does not detect a UHF signal. The
programmer can then be unplugged, as although the adjustment process
has been interrupted, the data selected has been memorised by the unit.
Afterwards, once completed the installation by connecting the inputs to
be used and loading the output with 75 ohms, the user simply has to press
the "Reset" button and the unit will carry out the adjustment process. The
adjustment of the "Avant" unit via the "Reset" button is carried out in the
same way as with the programmer, although in this case, the process will not
stop if the unit detects an error in the input levels, and the red error LED will
only light up when there is an error in the level of any of the filters.
If the unit has been programmed with the desired parameters for the
installation (channels, output level, equalisation slope ...), when the reset
button is pressed, the "Avant" unit will carry out an automatic adjustment
of the levels in the same way as when the programmer's adjustment button
is pressed and hold. The green LED will light up indicating that are being
adjusted all channel (that the unit already have in memory) levels for UHF,
FM and VHF amplifiers, while maintaing the input configurations, the
equalisation slope and the output levels that it had already configured.
7.- Switching on LED
8.- 196 - 264 V~ powering supply
9.- Reset Button
10.- Programming unit connector
11.- MATV output
12.- 7234 Programmer unit
adjustment
8
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