L-ACOUSTICS LA8 [40/56] La la la la888
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L-ACOUSTICS LA8 [40/56] La la la la888

L-ACOUSTICS LA8 [40/56] La la la la888
LA
LALA
LA8
88
8
AMPLIFIED CONTROLLER
AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER
AMPLIFIED CONTROLLER
USER MANUAL
USER MANUALUSER MANUAL
USER MANUAL
VERSION 4.0
LA8_UM_EN_4-0
w w w . l - a c o u s t i c s . c o m
38
3838
38
The LOCK status is obtained under the following conditions: a digital audio source is connected to the AES/EBU input,
the signal delivered by the source has a format supported by the LA-AES3 board, and no loss or fault is being detected
during data transfer.
If these conditions are not fulfilled the status will turn to LOCK-WARN or UNLOCK. The LOCK-WARN status
(Figure 31a) indicates a faulty digital signal not leading to sound cut (risk of blanks only). On the contrary, the UNLOCK
status (Figure 31b) indicates a faulty digital signal leading to sound cut.
Figure 31: LOCK-WARN and UNLOCK status
Sound cut can be avoided by using the FALLBACK MODE [7.9.3] and a backup analog source. In case of UNLOCK
status the ANALOG inputs will automatically be selected, leading to one of the screens of Figure 32. The AN.FBACK
message indicates that the amplified controller has switched from AES/EBU to ANALOG inputs. The message displayed
on the right (UNLOCK, LOCK-WARN, or LOCK 48 kHz) informs the user about the AES/EBU input current status.
Figure 32: ANALOG FALLBACK messages
When the LOCK status has been recovered, the user can manually revert to AES/EBU input mode by applying the
sequence described in Figure 33:
Figure 33: Reverting to AES/EBU input mode
Note: The input mode selected for both A and B channels can be immediately displayed from the main screen by
pressing and holding the IN A or IN B key. In Figure 34 the onscreen AES messages indicate that the AES/EBU input
mode has been selected. The message would be ANA in case of ANALOG selection or AFB in case of FALLBACK
mode activation.
Figure 34: A and B input channels display
INPUT MODE
AES/EBU LOCK-WARN
INPUT MODE
AES/EBU UNLOCK
a.
b
.
INPUT MODE
AN.FBACK UNLOCK
INPUT MODE
AN.FBACK LOCK-WARN
INPUT M
ODE
AN.FBACK LOCK 48 kHz
INPUT MODE
> AES/EBU <
INPUT MODE
AES/EBU LOCK 48 kHz
OK
ESC
OK
ESC
INPUT MODE
AN.FBACK LOCK 48 kHz

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