Panasonic Technics OTTAVA f SC-C70MK2 Operating Instructions Manual page 96

A "humming" sound can be heard during
playback.
• An AC mains lead of another device or fluorescent
light is near the cables. Turn off other appliances,
or keep them away from the cables of this unit.
• A strong magnetic field near a TV or other device
may adversely affect the audio quality. Keep this
unit away from such a location.
• The speakers may output noise when a device
nearby is emitting powerful radio waves, such as
when a mobile phone is on a call.
No sound.
• Check the volume of this unit and the connected
device.
• Check to see if the cable connections to the input
and output terminals are incorrect. If this is the
case, turn this unit to standby and reconnect the
cables correctly.
• Check to see if the correct input source is selected.
• Insert the plugs of the cables to be connected all
the way in.
• Playback of multi-channel content is not
supported.
• The digital audio input terminal of this unit can
only detect linear PCM signals. For details, refer to
the operating instructions of the device.
Playback does not start.
• Depending on your environment or connected
devices, it may take some time.
• Check to see if the format of the file is supported.
For supported formats, refer to "File format".
(⇒ 115)
The unit turns to standby mode automatically.
• Is the auto off function turned on? (⇒ 87)
• This unit incorporates a protection circuit to
prevent damage caused by heat buildup. When
you use this unit at a high volume level for a long
period of time, it may turn off automatically. Wait
for this unit to cool down before turning on this
unit again. (For approximately 3 minutes)
The settings are reset to the factory defaults.
• Updating the firmware may reset the settings.
96
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