Yamaha XMV4280-D Manuel du propriétaire - Page 19

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Yamaha XMV4280-D Manuel du propriétaire

Turning the Power On

Use the front panel power switch (page 9) to turn the power
on.
CAUTION
Before you turn the power on, make sure that audio
signals are not being input to the analog input connec-
tors. If audio signals are being input, excessive input
will be applied to the speakers when the power is
turned on, possibly damaging the speaker system or
damaging your hearing by high-volume sound. If there
is a problem with the speakers or the wiring, the pro-
tection circuit will operate immediately when the power
is turned on. Check whether there might be a problem
with the wiring.

Enabling Analog Input

Using the front panel, enable analog input as follows.
1. While holding down the [FUNCTION] but-
ton, turn the encoder to make the display
indicate "SRC."
The control mode will change to "Analog/digital input
selection."
2. Take your finger off the [FUNCTION] button,
and turn the encoder to make the display
indicate "ANA."
Input from the analog input connectors will be enabled.
NOTE
If a certain period of time elapses without any operation
being performed, the unit will return to Attenuation set-
ting operating mode.

Making High Pass Filter (HPF) Settings

If the unit is set for low impedance connections, the HPF
will be OFF. If the unit is set for high impedance connec-
tions, the 80 Hz HPF will be enabled.
If you want to change this setting, proceed as follows.
1. While holding down the [FUNCTION] but-
ton, turn the encoder to make the display
indicate "HPF."
The control mode will change to "HPF."
2. Press the [SELECT] button of the channel
for which you want to make HPF settings.
The [SELECT] indicator of the channel whose HPF you
are setting will light.
3. Turn the encoder to select the desired HPF
setting.
The available HPF settings are OFF / 40 Hz / 80 Hz.
NOTE
• In order to protect the amplifier, the HPF cannot be turned
OFF if high impedance connections are used.
• If you're using a sub-woofer with high-impedance connec-
tions, we recommend that you change the HPF setting to
40 Hz.
• If you're using a full-range speaker with high-impedance
connections, the amplifier's protection circuit may operate
if the HPF is set to other than 80 Hz. We recommend that
you use the 80 Hz setting.
• If a certain period of time elapses without any operation
being performed, the unit will be placed in Attenuation set-
ting operating mode.
XMV4280/XMV4140/XMV4280-D/XMV4140-D Owner's Manual
Connections and Setting Up
19