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Safety instructions 

Safety instructions 

1.

 

Strictly follow the sequence of successive steps in all procedures. 

2.

 

This manual contains the maintenance operations authorized for the end users. 

Performing another operation exposes to hazardous situations. 

3.

 

Never incorporate equipment or accessories not approved by L-Acoustics

®

4.

 

Do not expose the apparatus to extreme conditions. 

Do not expose the apparatus to dusty environments, moisture or excessive heat when storing or 
performing maintenance procedures. 

5.

 

Do not store the product on an unstable cart, stand, tripod, bracket, or table. 

6.

 

Never use a faulty apparatus. 

An apparatus showing any sign of issue must immediately be put aside and withdrawn from use. 

7.

 

Contact L-Acoustics for advanced maintenance. 

Any unauthorized maintenance operation will void the warranty. 
Before sending a product to L-Acoustics for maintenance, save all user presets to files using  
LA Network Manager. 

 

 

Symbols 

The following symbols are used in this document: 

 

This symbol indicates a potential risk of harm to an individual or damage to the product.

 

It can also notify the user about instructions that must be strictly followed to ensure safe installation or 
operation of the product. 

 

 

This symbol indicates a potential risk of electrical injury.

 

It can also notify the user about instructions that must be strictly followed to ensure safe installation or 
operation of the product. 

 

 

This symbol notifies the user about instructions that must be strictly followed to ensure proper installation 
or operation of the product.

 

 

 

This symbol indicates the equipment, tools, and spare parts required to perform a procedure.

 

 

 

This symbol notifies the user about complementary information or optional instructions.

 

 
 
 

 

Содержание LA4X

Страница 1: ...LA4X maintenance manual level 1 EN...

Страница 2: ...ance manual level 1 EN version 2 0 Distribution date March 20 2017 L Acoustics All rights reserved No part of this publication may be reproduced or transmitted in any form or by any means without the...

Страница 3: ...uality Control 8 3 Troubleshooting and diagnosis 10 Diagnosis table 10 Exploded view 16 Working time 16 4 Disassembly and Reassembly procedures 17 D R 001 REAR BRACKETS 17 D R 002 SIDE BRACKETS 18 D R...

Страница 4: ...uthorized maintenance operation will void the warranty Before sending a product to L Acoustics for maintenance save all user presets to files using LA Network Manager Symbols The following symbols are...

Страница 5: ...history Document identification Distribution date Modifications LA4X_MM1_EN_1 0 June 10 2014 Initial version LA4X MM1 EN version 2 0 March 20 2017 Added D R 004 bis FRONT HANDLE Updated Exploded view...

Страница 6: ...is illustration gives an overview of the order in which the elements must be disassembled and reassembled Each assembly refers to the corresponding module D R procedure and inspection procedure if any...

Страница 7: ...ear protections electric screwdriver DW920K DeWalt Torx T10 bit EX 010 Facom Torx T15 bit EX 615 Facom 3 5 mm flat screwdriver AN3 5X100 Facom wire stripping pliers 793936 Facom LA NWM L Acoustics ful...

Страница 8: ...o verify if the network functionalities of the controller work follow these steps a Connect the controller to an Ethernet port of the computer hosting LA NWM Use the CAT5e U FTP cable b Launch LA NWM...

Страница 9: ...e controller IN A IN B IN C or IN D b Plug the subwoofer to output connector OUT1 c Select a corresponding preset d Select the routing from the audio source to OUT1 e Play the musical program f Set th...

Страница 10: ...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 d...

Страница 11: ...ondensing humidity into the LCD screen Put the controller in a non condensing environment and wait until the LCD screen is dry other cause Contact L Acoustics LCD screen lit but dark 1 LED Backlight s...

Страница 12: ...ot plugged or plugged into the wrong L NET connector Plug and secure CAT5e U FTP cables into the L NET connectors on the controller to connect it to other controllers in the network chain a computer o...

Страница 13: ...the controller In case of persistent high level or clip reduce the audio source output level refer to the third party documentation and or the gain value on channel x loudspeaker impedance too low Ve...

Страница 14: ...roller Analog input connector for an analog audio source AES EBU input connector for AES EBU audio source audio source cable incorrectly plugged Unplug the XLR cable and plug it again on the audio sou...

Страница 15: ...omatic fallback Instead the signal will be muted wrong preset selection Select a preset in accordance with the loudspeaker system connected to the outputs audio source cable incorrectly plugged Unplug...

Страница 16: ...r The orange lines represent the disassembly reassembly D R order Refer to the table below for more information No MODULE name Procedure 1 REAR BRACKETS D R 001 2 SIDE BRACKETS D R 002 3 GRILL D R 003...

Страница 17: ...describes how to replace the REAR BRACKETS of an LA4X amplified controller Remove the two REAR BRACKETS pulling on them see Figure 1 Figure 1 Removing the REAR BRACKETS Reassembly procedure This proce...

Страница 18: ...indicated in Figure 3 Use the electric screwdriver with the Torx T10 bit Figure 3 Removing a SIDE BRACKET Remove the SIDE BRACKET from the controller Repeat these steps for the other SIDE BRACKET Reas...

Страница 19: ...t the head of the screwdriver in the hole indicated in Figure 5 Figure 5 Removing the GRILL Push the internal latch with the screwdriver and pull out the right side of the GRILL Push the internal latc...

Страница 20: ...rom the controller Replacement procedure This procedure describes how to replace the power plug on a POWER CORD Unplug the POWER CORD from the mains Unplug the POWER CORD from the controller Cut the P...

Страница 21: ...ONT HANDLE from the controller 3 Repeat these steps for the other FRONT HANDLE Reassembly procedure This procedure describes how to mount a FRONT HANDLE to an LA4X amplified controller FRONT HANDLES c...

Страница 22: ...R disassembly reassembly KR Replacement Kit LA NWM La Network Manager remote control software MODULE part of an amplified controller written in uppercase characters N m newton meter international torq...

Страница 23: ...RDONCE POWER CABLE 1 CE version power cord N A AMPCORDONCN 1 CN version power cord AMPCORDONUS 1 US version power cord G03255 FRONT HANDLE 2 front handles D R 004 bis KR LA4XEQAV SIDE BRACKETS 2 side...

Страница 24: ...o l acoustics com www l acoustics com L Acoustics GmbH Steierm rker Str 3 5 70469 Stuttgart Germany 49 7 11 89660 323 L Acoustics Ltd PO Box Adler Shine Aston House Cornwall Avenue London N3 1LF Unite...

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