L-Acoustics LA4X Maintenance Manual Download Page 5 | Manualshive

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Revision history

Revision 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

- Updated Appendix: KR list

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Summary of Contents for LA4X

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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