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Controls and Functions

Front Panel

XMV4280/XMV4140

XMV4280-D/XMV4140-D

q Power switch

Turns power to the unit ON or OFF. Setting the switch to the

upward position turns the power on; the [POWER] indicator

!0 will light green. Setting the switch to the downward posi-

tion turns the power off. If the switch is in the upward posi-

tion and the [POWER] indicator is flashing, the unit is in

standby mode.

CAUTION

• To ensure that high-volume noise is not output from

the speakers, power-on the equipment starting with

the audio sources, then the mixer and processors

(such as the MTX), and finally the amplifiers. Reverse

this order when turning the system off.

• Rapidly turning the power switch ON and OFF in suc-

cession can cause the unit to malfunction. After turn-

ing the power switch OFF, wait for about 5 seconds

before turning it ON again.

• If you modified parameter settings, do not turn the

power switch OFF for at least one second. Otherwise,

the changes to the settings may be lost.

• Even when the power switch is turned off, a small

amount of current is flowing through the unit. If you

plan not to use the unit for a long period of time,

remove the power cable from the AC outlet.

w [PROTECTION] A/B/C/D indicators

When the protection system is active, the indicator will light

orange. If the audio output is muted, turn off the power and

wait for the XMV to cool before turning the power on again.

The protection circuit will operate and the [PROTECTION]

indicator will light in the following situations.



If the amplifier overheats and the output lim-

iter operates

The speaker output will be attenuated if the heat sink of

the amplifier section exceeds 80°C, and will be muted if

the heat sink exceeds 90°C. The [PROTECTION] indica-

tor will light at 80°C or higher.



If the power supply overheats and shuts-down

The fan will rotate at high speed if the power supply sec-

tion exceeds 90°C, and the analog circuits will shut down

if it exceeds 100°C.

The [PROTECTION] indicator will light at 100°C or

higher.

XMV4280/XMV4140/XMV4280-D/XMV4140-D Owner's Manual

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