L-Acoustics LA8, Руководство пользователя

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LA8
AMPLIFIED CONTROLLER
User Manual
VERSION 1.1
LA8_UM_EN_1.1
w w w . l - a c o u s t i c s . c o m
40 en
8.3.1 No power, no sound, or sound level is too low
LCD screen
lit?
Main screen
displayed?
Signal LEDs
blinking?
Outputs
muted?
Signal input
presence? **
Output gain
too low? *
Displayed
message on
screen?
Speaker
cables
connected?
L-NET LED
lit?
The controller is in Standby
Mode and controlled by LA
NETWORK MANAGER
software (see section 7.3.6)
Reboot the controller by
switching it off and on again to
cancel Standby Mode
Check if AC outlet works,
connect the AC plug,
switch the power on.
Message ‘‘HIGH TEMPERATURE:
SIGNAL ATTENUATION’’
displayed (see section 7.6.1)
Contact local distributor for
service
Check speaker cables
and/or speakers
Plug speaker cables on both sides
Unmute the outputs
Check level at signal source
and secure XLR wiring on
both sides
Set output gain higher value
Contact local
distributor for
service
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
* Press and hold either OUT 1 to OUT 4 keys
to check the corresponding output gain
values (see section 7.1.2).
** Press and hold either IN A or IN B keys to
check if the corresponding input signal LEDs
are blinking or not (see section 7.5.3).
Message ‘‘DC ERROR: SWITCH
OFF’’ displayed (see section 7.6.2)
Message ‘‘POWER FAILURE:
SWITCH OFF’’ displayed
(see sections 7.6.3 to 7.6.5)
Message ‘‘FUSE PROTECT’’
displayed (see section 7.6.6)
Message ‘‘DSP ERROR: SWITCH
OFF’’ displayed (see section 7.6.7)
Message ‘‘STANDBY MODE’’
displayed and 4 LOAD LEDs lit
Yes
Power
switch on, AC plug
connected, AC outlet
working?
No
Yes
Firmware being
updated?
No
Wait 4 min
for the
updating
sequence to
be completed
Yes
No power, no
sound, or sound
level too low