LA4_UM_ML_1.1
w w w . l - a c o u s t i c s . c o m
7 en
EN
7.4
On screen messages .............................................................................................................................................. 33
7.4.1
Start-up sequence .................................................................................................................................. 33
7.4.2
Warning messages.................................................................................................................................. 33
7.5
LED display............................................................................................................................................................ 34
7.5.1
Bargraph display..................................................................................................................................... 34
7.5.2
L-NET LED ............................................................................................................................................ 34
7.5.3
Routing and input signal display.............................................................................................................. 35
7.6
Amplified controller protection systems ............................................................................................................... 36
7.6.1
Thermal Protection................................................................................................................................ 36
7.6.2
DC Protection........................................................................................................................................ 36
7.6.3
Mains supply Under & Over-voltage Detection..................................................................................... 36
7.6.4
Mains supply Failure Detection.............................................................................................................. 36
7.6.5
Peak Over-Current Protection.............................................................................................................. 36
7.6.6
Mean Over-Current Protection - Fuse Protection ................................................................................ 36
7.6.7
DSP & Operating system Error.............................................................................................................. 36
7.7
L-Drive – Transducer protection system .............................................................................................................. 37
8
CARE AND MAINTENANCE
38
8.1
Maintenance information....................................................................................................................................... 38
8.2
Filter cleaning......................................................................................................................................................... 38
8.3
Troubleshooting .................................................................................................................................................... 39
8.3.1
No power, no sound, or sound is too low............................................................................................. 40
8.3.2
Bad sound .............................................................................................................................................. 41
8.3.3
Overheating ........................................................................................................................................... 41
9
SPECIFICATIONS
42
10
APPENDIX
43
10.1
LA4 factory preset library (version 1.1)................................................................................................................. 43
