Yamaha ATS-CU2070 Bedienungsanleitung Seite 37

Problem
No sound is coming from the
subwoofer. (The
indicator on the subwoofer
flashes or the STANDBY
indicator on the subwoofer
glows.)
Though the indicator on
the subwoofer glows, little or
no sound is coming from the
subwoofer.
The volume decreases when
the unit is turned on.
Cause
The center unit and subwoofer are not connected due to a
bad wireless communication status.
The center unit and subwoofer are not paired.
The volume is too low.
The front side of the subwoofer is blocked.
The playback source does not contain low-frequency
signals.
The automatic volume adjustment function is activated.
To prevent excessive loudness, the unit automatically
controls its volume within a certain level when the unit is
turned on.
Remedy
Move the subwoofer closer to the center unit. If the issue is not
resolved, move the subwoofer to a location that supports better
communication (one in which the
If the communication between the center unit and subwoofer is
obstructed by a metallic object or another object, change the
position of the center unit and subwoofer or change the
installation location of the subwoofer.
If there is a device (microwave oven, wireless LAN, etc.) that
emits radio frequency signals, move the center unit and
subwoofer away from the device.
Pair the center unit and subwoofer manually (p. 40).
If a wireless connection is not established, the unit may be
malfunctioning. Unplug the power cables from the AC wall outlets
and contact the nearest authorized Yamaha dealer or service
center.
Turn up the volume of the subwoofer (p. 26).
Clear the area around the front side and the bass reflex port of
the subwoofer.
Play back a sound source containing low-frequency signals, and
confirm that the sound is output from the subwoofer.
Turn up the volume as required (p. 26).
indicator glows).
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