Troubleshooting - Alcad 905-ZA Série Manuel D'installation Et Programmation

48 - ENG

12. TROUBLESHOOTING

P. PROBLEM
P. The indicator that the module is powered and recognised by the PA (27)
is blinking.
C. The module has been installed without disconnecting the headend from
the mains supply.
S. Disconnect the equipment, then reconnect it to the mains supply so that
the amplifier recognises the new module.
P. The channel level indicator IN (25) is blinking.
C. The module has not been programmed correctly.
A. Perform a reading of the data programmed in the module to check if the
data was transmitted correctly. To do this, press the F and READ keys of
the PS programmer.
P. The channel level indicator IN (25) is blinking.
C. The level of the received sign falls below or exceeds the levels specified
in the technical datasheet.
S. Check the level of the signal of the last module of the diplexor (24) with
a field meter. Ensure that the input signal level falls within the range
specified in the technical datasheet (35). If it does not, check the
installation and orientation of the antenna.
P. The channel level indicator IN (25) of all the ZA modules is blinking.
C. The PA amplifier cannot detect any input signal (18).
S. Check that the antenna cable and the multiplexing bridge which links the
PA amplifier with the first ZA module are connected.
P. The output level of an analogue channel is 10 dB lower than the other
analogue channels.
C. The filter or processor is configured to work in digital mode.
S. With the PS programmer, select Mode: Analogue in the filter or
processor where that channel is
P. The output level of a digital channel is 10 dB higher than the other
digital channels.
C. The filter or processor is configured to work in analogue mode.
S. With the PS programmer, select Mode:
processor where that channel is programmed and re-program it.
Installation and programming manual
C. CAUSE S. SOLUTION
programmed and re-program it.
Digital in the filter or