About AI NC MODE button.
Sounds come from the headphones to inform you that the unit has started
analyzing ambient sound components (approx. 3 seconds). During analysis,
sound reproduction from the unit is stopped and the POWER indicator lights in
pink. When analysis is completed, the most effective noise canceling mode is
set automatically, and sound reproduction from the headphones starts.
Note When the power of headphones is turned in, mode A is set.
Mode names
A : Noise mainly in an airplane is effectively reduced.
B : Noise mainly in a bus or a train is effectively reduced.
C : Noise mainly found in an office environment (PC, copier, air ventilation, etc.) is
effectively reduced.
About MONITOR button
If the MONITOR button is pressed and held while the POWER switch is set to
ON, playback silences then you can hear the surrounding environment.
AI NC
MODE
button
POWER
indicator
4-117-888-01(2)
MONITOR
button
Monitor microphone
This unit is specifically for use with the ANA in-flight entertainment service.
First step guide
1Connect the headphones to headphones jack on seat.
2Set the POWER switch to “ON.”
The POWER indicator lights up in blue, and a short beep sounds from the unit.
3Put the headphones on your head.
Place the headphones so that the cord on the left and the POWER switch on the
right, and wear them snugly over your ears.
4Start playing a program.
5Set the POWER switch to “OFF” after use.
Notes
To prevent hearing loss
• Refrain from using the headphones for a long time at a loud volume.
•Stop using the unit and notify a cabin attendant if you hear a howling effect (beep
sound), or if loud sound occurs suddenly.
To prevent allergies
Refrain from using the unit if you have allergies against materials such as metal or
synthetic leather.
In case you do not feel well
Stop using the unit if you do not feel well after extended use.
If there is no sound
Connect the plug firmly in the jack in the seat of the airplane.
©2008 Sony Corporation Printed in Malaysia
MDR-NC500D
Digital Noise Canceling Headphones
POWER switch
POWER indicator
