L-Acoustics LA4X Maintenance Manual

Troubleshooting and diagnosis
3 Troubleshooting and diagnosis
Diagnosis table
For any issue, follow the check sequence in the possible causes column.
At each step, apply the inspection procedure (if exists) and consider the resulting diagnosis.
Before applying a procedure, consider the EXPLODED VIEW to get acquainted with the
disassembly/reassembly procedures to perform before and after.
External structure
Issue
Possible causes
Inspection procedure / Diagnosis
FOAM FILTER clogged
operation in very dusty or
cracked-oil smoke machine
environments
Clean or replace the FOAM FILTER, see
procedure
D/R 003
.
Inside of the controller dirty
(visible from the GRILL)
operation in very dusty or
cracked-oil smoke machine
environments
Contact L-Acoustics
®
.
FOAM FILTER lost or damaged
mechanical shock
Replace the FOAM FILTER, see procedure
D/R 003
.
GRILL lost or damaged
mechanical shock
Replace the GRILL, see procedure
D/R
003
.
LEXAN INTERFACE lost or
damaged
mechanical shock
Contact L-Acoustics
®
.
FRONT STRUCTURE damaged
mechanical shock
Contact L-Acoustics
®
.
REAR BRACKETS lost or
damaged
mechanical shock
Replace the REAR BRACKETS, see
procedure
D/R 001
.
SIDE BRACKETS lost or damaged
mechanical shock
Replace the SIDE BRACKETS, see
procedure
D/R 002
.
KNOB lost or damaged
mechanical shock
Contact L-Acoustics
®
.
CHASSIS damaged
mechanical shock
Contact L-Acoustics
®
.
POWER CORD damaged
pulled, trampled, pinched,
frayed…
Replace the POWER CORD, use
AMPCORDONCE, AMPCORDONCN,
or AMPCORDONUS.
Power plug of wrong model
reference does not exist
Replace the power plug, see procedure
D/R 004
.
PowerCON connector damaged
mechanical or electrical
shock
Contact L-Acoustics
®
.
SpeakON connector damaged
mechanical or electrical
shock
Contact L-Acoustics
®
.
XLR connector damaged
mechanical shock
Contact L-Acoustics
®
.
EtherCON connector damaged
mechanical shock
Contact L-Acoustics
®
.
LCD screen, encoder wheel or
LED damaged on the DISPLAY
mechanical shock
Contact L-Acoustics
®
.

L-Acoustics LA4X Specifications

General

Brand	L-Acoustics
Model	LA4X
Category	Controller
Language	English