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User instructions
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, using the "reset" button located to the left of the program-
mer's connector.
To do so, take the following steps:
Select the adequate parameters for the installation using the programmer (channels, output level, equalisation
slope ...) and press the
signal, the adjustment will stop when it does not detect a UHF signal. The remote control can then be put away, as
although the adjustment process has been interrupted, the data selected has been memorised by the unit.
Afterwards, in the installation, and after connecting the inputs that are being 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 adjust-
ment 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 units detect 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 single channels.
Therefore, 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
green LED will light up indicating that the levels of all the UHF channels are being adjusted (that the unit has in its
memory) of the FM, VHF and IF amplifiers, while maintaing the input configurations, the equalisation slope and the out-
put levels that it had already configured.
Troubleshooting.
When I press the adjustment button, an error message appears: The unit does not allow two single-channels to be
programmed in the same RF output channel, if this message appears, the unit will not begin the adjustment, so press
the
button to exit. The first incorrect channel that can be modified will appear on the remote control's display.
The channels are not adjusted to the programmed output level: Check that the programmed single-channel in the hig-
hest output channel has an adequate signal and level as this is taken as a reference for the adjustment of the selected
output level.
The channels selected by BI/BIII are not regulated correctly: The BI/BIII input is used for the amplification of a terres-
trial channel, if you need to amplify the signals in this band coming from satellite receivers you need to use the
"Broadband" input port. If you apply a sole channel in this input, its level will be adjusted to 5dB below the UHF channels
level. However, if with the same level, you apply a collection of equalised channels from satellite receivers, the unit will
treat them as though it is dealing with one channel with a greater level, reducing the adjusted level of the collection as
regards the level that we would have with one channel.
The channels in the broadband input are not equalised as regards the single-channels: The "broadband" input amplifies
signals coming from satellite receivers, the recommended level for this input is between 70 and 74 dBµV (for UHF chan-
nels) for these channels to be equalised with the rest of the adjusted channels. If the level applied is below the indicated
range these channels will have a lower level than the rest, and if the level is higher there will be disturbances due to the
intermodulation of the channels.
A high/low level detected in an input or a single-channel: The adjustment process begins with the verification of the sig-
nal levels introduced in the FM, BI/III input and finally with the verification of the programmed single-channels. The indi-
cation that the FM or BI/III level is low when we do not apply the signal in these inputs will not affect the rest of the
selected channels.
We must remember that the level indications in the FM, BI/III inputs and single-channels that have appeared on the
remote control are a reference for the adjustment process, as this is the unit capable of balancing the channels where a
level error has been found so long as the input levels do not present large variations as regards the maximum specified
range.
adjustment button (pressed for longer). As the programming is carried out without the input
adjustment button is pressed for a longer period of time. The
60
"Avant 5"
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