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LA8_MM1_EN_2.0 

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L-NET network (refer to the LA NWM video tutorial for software use) 

Issue 

Possible causes 

Inspection procedure / Diagnosis 

Impossible to connect a controller 
to the L-NET network 

(controller 

not

 in “blue screen”) 

1.

 

offline mode selected on 
LA NWM 

Select the 

online mode

 on LA NWM. 

2.

 

scanning range not 
containing the controller IP 
address 

Include  the  controller  IP  address  in  the 
scanning range on LA NWM. 

3.

 

wrong IP address 

Set

 

the 

computer IP address

 and 

subnet 

mask

 as well as the 

controller IP address

 

as  indicated  in  the 

LA  NWM  video 

tutorial

4.

 

L-NET cable not plugged 
or plugged into the wrong 
L-NET connector 

Plug and secure a CAT5e U/FTP cable into 
the  L-NET  IN  connector  on  the  controller 
and  the  network  connector  on  the  device 
preceding  the  controller  in  the  network 
chain (computer, L-NET OUT connector on 
another controller, or Ethernet switch). 

Do the same for each cable of the network 
chain from the controller to the computer. 

5.

 

L-NET cable incorrectly 
plugged 

Unplug the CAT5e U/FTP cable and plug it 
again  on  both  sides. Do  the  same  for  each 
cable  of  the  network  chain  from  the 
controller to the computer. 

6.

 

L-NET cable of wrong 
model 

Use 

straight-through

  Ethernet  cables  of 

CAT5e  U/FTP

 category (or higher) and of 

100 m/328 ft

 maximum length. 

If  an  Ethernet  switch  is  used  and  the  auto 
MDI/MDIX  functionality  is 

not

  available  on 

it,  use  a 

crossover 

cable  between  the 

switch and each controller. 

7.

 

L-NET cable damaged 

Replace all damaged CAT5e U/FTP cables of 
the  network  chain  from  the  controller  to 
the computer. 

8.

 

another software client is 
already connected to the 

controller 

Disconnect the software client. 

9.

 

firmware failure 

Restart the controller. 

10.

 

other cause 

Contact L-ACOUSTICS

®

 

 

 

 

Содержание LA8

Страница 1: ...LA8 AMPLIFIED CONTROLLER MAINTENANCE MANUAL LEVEL 1 VERSION 2 0 www l acousti cs co m...

Страница 2: ...all legally prescribed instructions if sending an apparatus to L ACOUSTICS for maintenance Save all user presets to files using LA NETWORK MANAGER software SYMBOLS The following symbols are used in th...

Страница 3: ...4 GLOSSARY 4 INTRODUCTION 4 1 EQUIPMENT AND TOOLS 5 2 QUALITY CONTROL 6 3 DIAGNOSIS 7 Diagnosis table 7 Exploded view 15 Working time 15 4 MAINTENANCE PROCEDURES 16 D R 001 FRONT FRAME 16 D R 002 FOAM...

Страница 4: ...S LA8 US version MODULE part of an amplified controller written in uppercase characters SMPS Switched Mode Power Supply power supply inside of the controller US United States INTRODUCTION This LA8 mai...

Страница 5: ...orm all level 1 maintenance procedures on the LA8 amplified controller Equipment and tools Reference Manufacturer audio source with a known musical program CAT5e U FTP cable ear protections voltage ab...

Страница 6: ...online mode refer to the LA NWM video tutorial Verify if the latest version of firmware is installed see the LA8 user manual or the LA NWM video tutorial 5 If not update firmware from LA NWM Select a...

Страница 7: ...ine environments Contact L ACOUSTICS FOAM FILTER lost or damaged mechanical shock Replace the FOAM FILTER see procedure D R 002 FRONT FRAME lost or damaged mechanical shock Replace the FRONT FRAME see...

Страница 8: ...ICS LCD screen lit but nothing is displayed blue screen controller connected to a 1 non compatible network Unplug all cables from the L NET connectors and restart the controller condensing humidity in...

Страница 9: ...n the device preceding the controller in the network chain computer L NET OUT connector on another controller or Ethernet switch Do the same for each cable of the network chain from the controller to...

Страница 10: ...troller If the controller is rack mounted Do not block the ventilation grills with front or back panels or doors If not possible use a forced ventilation system When stacking more than one controller...

Страница 11: ...ircuit in loudspeaker or loudspeaker cable Verify that nothing causes a short circuit at the controller outputs wrong cabling scheme damaged cable or short circuit in the speaker voice coil Then resta...

Страница 12: ...nued Issue Possible causes Inspection procedure Diagnosis Invalid MAC address Contact L Acoustics controller may have a non unique MAC address Contact L ACOUSTICS System Message Invalid L NET Client c...

Страница 13: ...the XLR cable and plug it again on the audio source and the controller audio source cable 7 damaged Replace the XLR cable wrong settings on the 8 audio source Set appropriate parameter values on the a...

Страница 14: ...ad the signal will be muted wrong preset selection 4 Select a preset in accordance with the loudspeaker system connected to the outputs audio source cable 5 incorrectly plugged Unplug the XLR cable an...

Страница 15: ...DULES of the LA8 Each MODULE is indicated by a circled number The box next to a circle indicates the disassembly reassembly procedure D R associated to the MODULE No MODULE name 1 FRONT FRAME 2 FOAM F...

Страница 16: ...his procedure describes how to replace the FRONT FRAME on an LA8 amplified controller Pull the FRONT FRAME at one side and remove it from the controller 1 Insert the two sides of a FRONT FRAME into th...

Страница 17: ...TER of an LA8 amplified controller Pull on a FRONT FRAME side without removing it from the controller 1 Do the same on the other side 2 Remove the FOAM FILTER 3 If the FOAM FILTER is intended to be cl...

Страница 18: ...ge completely Check that there is no voltage at the two pins of the power plug Replacement procedure This procedure describes how to replace the power plug of an LA8 amplified controller Unplug the PO...

Страница 19: ...racket 2 Replacement procedure This procedure describes how to replace the REAR BRACKETS of an LA8 amplified controller Remove the two old REAR BRACKETS from the amplified controller pulling on them s...

Страница 20: ...0 LA8_MM1_EN_2 0 w w w l a c o u s t i c s c o m 2 0 21 APPENDIX KR LIST Reference Concerned MODULE KR contents Associated procedure KR LABRACKET REAR BRACKETS 2 brackets D R 004 KR LAXGRI FRONT FRAME...

Страница 21: ...ference LA8_MM1_EN_2 0 Distribution date June 10 2014 2014 L ACOUSTICS All rights reserved No part of this publication may be reproduced or transmitted in any form or by any means without the express...

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