Using The Headphones; Troubleshooting - Denon AH-NC800 Manual Del Usuario

Using the headphones

Listening to audio
First, turn the volume of the audio device down.
1
Turn on the power of the audio
device and start playback.
2
Set the switch to "ON".
The noise cancellation function turns
on and the indicator lights blue.
NOTE
• •If the indicator does not light or flashes when the power is turned on,
the battery is worn. Replace it with a new battery.
• •Be sure to turn the power off after use.
• •You may not be able to use with certain portable devices or other
devices that are equipped with a digital amplifier.
• •When the headphone power is off, the headphones can be used as
standard headphones. However, in this case the noise cancelling
function does not operate.
• •The noise cancelling function can be used independently by not
connecting the connecting cable to the headphones.
About the RESTORER function
Compressed audio formats such as MP3, WMA (Windows Media Audio)
and MPEG-4 AAC reduce the amount of data by eliminating signal
components that are hard for the human ear to hear. The RESTORER
function generates these signals that are eliminated upon compression,
restoring the sound to a similar state as the original uncompressed sound.
n Operations
Set the switch to "RESTORER".
The noise cancellation function and the
RESTORER function turn on, and the
RESTORER indicator lights white.
n About using on planes
To use these headphones to listen to the on-board music broadcast in
the aircraft cabin, use the conversion plug included.
NOTE
• •The conversion plug may not be suitable for certain aircraft.
• •Do not use these headphones when use of electronic devices is
prohibited on board, or when the use of personal headphones to listen
to the on-board music service is prohibited.
Storing in the carrying case
1
Remove the connecting cable and plug from these
headphones.
2
Fold the headphones and place them in the carrying case.
3
Close the carrying case and shut the fastener.
Indicator
Switch

Troubleshooting

1. Is the set being operated as described in the owner's manual?
If the headphones do not operate properly, check the items listed in the table below. Should the problem persist, there may be a malfunction. In this
case, contact the store where you purchased these headphones.
Symptom
No sound emitted.
Sound is distorted.
No noise cancelling
effect.
Noise can be heard.
Switch
There is no RESTORER
effect.
"RESTORER"
Indicator
Specifications
n Type:
n
n Drive units:
n
n Input impedance:
n
n Sensitivity:
n
n Maximum input:
n
Cause
• •Connecting cable is not connected to the headphones, or is
not connected correctly.
• •Connecting cable is not connected to the audio device, or
is not connected correctly.
• •The connected audio device is not operating.
• •The volume of the connected device is too low.
• •The switch is set to on or "RESTORER", but there is not
battery installed, or the battery is worn.
• •Volume of the connected audio device is too high.
• •Battery is worn.
• •Battery is worn.
• •This headphone power is off.
• •The battery is not inserted in the proper direction, as
indicated by the polarity marks in the battery compartment.
• •Battery is worn.
• •A mobile phone or other electronic device is being used
nearby.
• •The RESTORER function is turned off.
• •Battery is worn.
• •The battery is not inserted in the proper direction, as
indicated by the polarity marks in the battery compartment.
Dynamic type
Ø 42 mm
40 Ω (Power on)
105 dB/mW (Power on)
100 mW
NOTE
Insert the headphones into the space provided in the carrying case.
Forcing the headphones into the case may cause damage to the
headphones.
Carrying case
Countermeasure
• •Check that the plug is fully inserted.
• •Check that the plug is fully inserted.
• •Turn on the power of the connected device, and press play.
• •Gradually increase the volume of the connected device.
• •Replace with the battery.
• •Decrease the volume of the connected device.
• •Replace the battery.
• •Replace the battery.
• •Turn this headphone power on.
• •Insert the battery in the proper direction, following the
polarity marks in the battery compartment.
• •Replace the battery.
• •Move the electronic device away from the headphones.
• •Turn the effect on.
• •Replace the battery.
• •Insert the battery in the proper direction, following the
polarity marks in the battery compartment.
n Playback frequency:
5 – 28,000 Hz
n
n Weight:
180 g (Excluding cables and battery)
n
n Plug:
Ø 3.5 mm gold-plated stereo mini plug
n
z For improvement purposes, specifications and design are subject to
change without notice.
ENGLISH
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