L-Acoustics LA12X, Руководство пользователя

Страница: 64 / 72

Maintenance
Sound issues
no sound with no error message
(amplied controller is not in standby mode. Refer to the LA Network Manager video tutorial)
possible cause diagnosis / procedure
mains failure inspect the mains
outputs are muted unmute the outputs
incorrect input mode
if the fallback mode is ON, switch it OFF.
Select the input mode according to the audio source
format (analog or AES/EBU)
incorrect preset selection
select a preset in accordance with the loudspeaker system
connected to the outputs
gain value is too low on the amplied controller
set an appropriate gain value on channels OUT1 to
OUT4.
If the AES/EBU input mode is selected, set an appropriate
AES/EBU input gain value.
audio source is not plugged, incorrectly plugged, or
plugged into the wrong input connector
(re)plug and secure each XLR cable into the audio source
and the corresponding input connector on the amplied
controller (analog input connector for analog audio
source, AES/EBU input connector for AES/EBU audio
source)
audio source cable is damaged replace the XLR cable
incorrect settings on the audio source
set appropriate parameter values on the audio source,
in particular the output gain value (refer to the third-party
documentation)
non-audible bit stream
check that the AES/EBU source does not deliver non-audio
bit stream (e.g. encoded audio)
audio source failure
inspect the audio source for failure
Reminder: A digital audio source can meet the following
failures: no clock, loss of lock, invalid audio (validity bit),
CRC error, bipolar encoding error, data slip.
loudspeaker not plugged, incorrectly plugged, or plugged
into the wrong output connector
(re)plug and secure each speakON cable into the
loudspeaker and the corresponding output connector on
the amplied controller
loudspeaker cable is damaged replace the loudspeaker cable
loudspeaker is damaged if only one loudspeaker is connected, inspect it
other causes contact L-Acoustics
LA12X user manual (en) version 2.0 64