Troubleshooting - Pioneer SE-MJ7NC Operating Instructions Manual

WRA1103A_EN.fm Page 7 Monday, March 12, 2007 12:52 PM

Troubleshooting

If you suspect a malfunction, perform the following checks, since a simple operating error may be
the cause of the problem. The problem may also be caused by factors other than the headphones
themselves, so be sure to check the sound components with which the headphones are used.
If the problem persists after making the following checks, consult your dealer or nearest Pioneer
Service Station.
Problem
No sound.
Sound is distorted.
Power won't turn on.
Feedback sound (howling).
Noise canceller produces
no effect.
Precautions
• Do not subject headphones to dropping,
striking, or other severe impacts, since
damage may result.
• To ensure high quality sound reproduction,
keep the plug clean by wiping occasionally
with a soft clean cloth. A dirty plug may
cause degradation of sound quality or
interruption of sound production.
Remedy
• Check connection between headphones and AV system component.
• Confirm that power is turned on to the AV component.
• Adjust the output sound volume on the AV component.
• Adjust the sound volume on the headphones.
• Lower the sound volume on the connected AV component.
• Replace the headphone batteries.
• Replace the headphone batteries.
• Check that batteries are installed correctly (are  and  polarities
correct?).
• If you are covering the microphone part of the headphone with your
hand, remove your hand.
• Set the power switch to position ON1 or ON2 (power indicator lights
green).
Environmental conditions
• Avoid leaving the headphones in the
following places:
– Automobiles with closed windows, other
– Places exposed to high concentrations
– Places exposed to high humidity.
locations exposed to direct sunlight, or
nearby heating appliances or places
exposed to high heat.
of dust.
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