L-Acoustics LA4X User Manual

Maintenance
Other messages
System Message
Update error
Displayed if the rmware update has failed. Try to restart the amplied controller. If
the issue persists, check that each L-NET cable is in working order and is correctly
plugged on both ends and relaunch the update process. If the issue persists, contact
L-Acoustics.
High temp on ch #
Channel attenuated
Displayed if temperature at an output channel is above 60° C. The signal delivered
at the output channel is attenuated until temperature returns to nominal conditions.
Over temp on ch #
Channel muted
Displayed if temperature at an output channel is above 65° C. The signal delivered
at this output channel is muted until the temperature returns to nominal conditions.
System Message
Fan blocked
Displayed if a fan is faulty. The controller remains operational but there is a risk of
temperature rising.
For temperature messages:
possible cause diagnosis / procedure
room temperature is too high / too low
make sure room temperature is within amplied controller
operating condition range (0º C / 32º F to +50º C / 122º
F)
foam lter clogged, inside of amplied controller dusty
clean or replace the foam lter, clean the amplied
controller with an air blower
amplied controller is not getting enough cool air
install the amplied controller in an open area so that
the front and rear panels are not blocked by an external
objects or structure.
If rack-mounted:
— do not block the ventilation grill with front and back
panels or doors, or use a forced ventilation system
— when stacking more than one amplied controller,
mount them directly on top of one another or close the
free spaces with blank panels
channel resources are solicited to their limits
monitor the channel LED meter: in case of persistent high
level or clip, reduce the audio source output level (refer to
the third-party documentations) or the gain value on the
channel.
loudspeaker impedance too low
check that nothing causes a short-circuit at the output
(incorrect cabling scheme, damaged cable or short-circuit
in the speaker voice coil).
Glossary
CE Europe
CHK check procedure
CN China
D/R disassembly/reassembly procedure
INSP inspection procedure
INT international (bare lead version of the power cable)
KR repair kit
N.m newton meter, international torque unit, 1 N.m = 9 in lbf
SMPS Switched Mode Power Supply (power supply inside of the amplied controller)
US United States
LA4X user manual (EN) version 9.1 54

L-Acoustics LA4X Specifications

General

Brand	L-Acoustics
Model	LA4X
Category	Controller
Language	English