L-Acoustics X15 HIQ, Руководство пользователя, Страница: 31 / 38

Maintenance
• Ambient temperature must be comprised between 0 °C / 32 °F and 40 °C / 104 °F. Ideal temperature is 20 °C /
68 °F.
• Enclosures must be at room temperature. If warm from a recent high level use or recently moved from a cold
environment, let the loudspeakers reach room temperature before starting.
Enclosures:
• Enclosures must be included in the embedded factory preset library.
• Enclosures must be in nominal operating conditions:
• Remove covers or dollies obstructing the loudspeakers or the vents.
• Check for obvious physical damage or air leak: visually inspect the grill, gasket, cabinet, and connector plate
for loose, missing or damaged parts.
Connection:
• Use only 10 m / 30 ft 4 mm² / AWG 11 speaker cables.
• Do not connect enclosures in parallel.
Amplied controllers:
• LA4X must run at least rmware version 1.1.0.
• LA4X load sensors must be calibrated. Refer to the technical bulletin for more information.
• LA4X must warm up for at least 10 minutes after power up. Do not power off, reboot or switch to standby mode to
avoid resetting the countdown.
• Load a preset corresponding to the connected loudspeaker's family. Presets from the user memories may be used on
condition they are made of presets supported in the embedded factory preset library.
Procedure
1.
Power up the amplied controller. Let LA4X warm up for at least 10 minutes.
2.
Connect the loudspeaker enclosures to the amplied controller.
3.
Load a preset from or built from the embedded library corresponding to the connected loudspeaker family.
4. On the amplied controller, use the encoder wheel to select MONITORING & INFO . Press the OK key or the
encoder wheel to validate.
5. Use the encoder wheel to select ENCLOSURE CHECK .
Beware of sound levels.
Although the sound pressure levels generated for the ENCLOSURE CHECK are moderate, do not stay within
close proximity of the loudspeakers and consider wearing ear protection.
6.
Press the OK key or the encoder wheel to launch the ENCLOSURE CHECK.
The amplied controller generates short sinusoidal signals simultaneously for each connected output.
The amplied controller displays the results for each output.
7.
Depending on the displayed results, follow the instructions in the table.
result interpretation instructions
OK
measured impedance is within expected range enclosure is in working order electrically
?
unsupported preset family only supported enclosures should be tested
NC
Not Connected if cables are connected:
a. inspect the cables and connections
b. go to step 8 (p.31)
NOK
measured impedance is not within expected range
UNDEF
measured impedance is undened
a. check that all the prerequisites are met, in
particular that the loaded preset corresponds
to the connected speaker's family
b. inspect the cables and connections
c. go to step 8 (p.31)
8.
Under NC, NOK and UNDEF results, press and hold the corresponding OUT key.
The amplied controller displays:
X15 HiQ user manual (EN) version 5.0 31