NAD VISO THIRTY Quick Start Manual - page 6
components-may be at fault.) If the problem stays in the same speaker,
swap the speaker cables next. If the problem remains in the same
speaker, irrespective of the channel to which it's connected and the
connecting wire used, the speaker itself probably needs service.
6
Sounds distorted
Hum
IV. TROUBLESHOOTING—SUBWOOFER
Symptom
Action
No sound/power
indicator not lit
Ensure the main power switch is toggled to the “Power” position.
This switch is located at the back of the subwoofer.
Ensure the power cord is connected to the subwoofer and plugged
into a live AC outlet.
Ensure the main power switch is toggled to the “Power” position.
This switch is located at the back of the subwoofer.
Ensure the power cord is connected to the subwoofer and plugged
into a live AC outlet.
Check the main fuse located in the power cord socket and replace
as required. If the new fuse also blows, the subwoofer amplifier
requires service.
The VISO S10 subwoofer utilizes signal sensing auto on/off circuitry.
If no signal is sent to the subwoofer, it will not power up and the front
panel power indicator will remain red. When using the subwoofer
output of the VISO receiver, no signal may be immediately present in
this output. The subwoofer will only power up when a signal appears
at the subwoofer input.
If the signal cable connection is poor or has been severed, the
subwoofer will not power up. Swap cables to determine if this is the
source of the problem.
To ensure the problem is not associated with the subwoofer, rapidly
disconnect and connect the subwoofer input signal. If the subwoofer
power indicator color changes to green, the VISO receiver may not
be sending a signal to the subwoofer. Ensure the VISO receiver is
correctly configured to provide signal at the subwoofer output.
Lower volume if the subwoofer begins to sound distorted to
determine if playback at a lower level solves the problem. If a slight
reduction in level solves the problem, were you being realistic in your
subwoofer level setting? If the distorted sound remains at a low
level, the woofer may be damaged.
Hum is usually caused by using an inferior, damaged, exceptionally
long signal cable or cables routed near high current
No sound/power
indicator remains red