Troubleshooting - Sony MDR-IF140K Operating Instructions Manual

Troubleshooting

No sound/Muffled sound
, Turn on the transmitter first, and then
put on the headphones.
, Check the connection of the audio/
video equipment or the AC power
adaptor.
, Check that the audio/video equipment
connected to the transmitter is turned
on.
, If the transmitter is connected to the
headphones jack, raise the volume of
the audio/video equipment connected
to the transmitter.
, The mute function is activated.
• Check if there is any object between
the transmitter and the headphones.
• Use the headphones near the
transmitter.
• Change the position and angle of the
transmitter.
, The headphones' power indicator light
dims, flashes or goes off.
• Replace dry battery with new one. If
the power indicator is still off after
replacing the battery, take the
headphones to a Sony dealer.
, If you connect the LINE OUT jacks of
your connected equipment to the
PHONES IN jacks of the transmitter,
volume may be too low. Use the LINE
IN jacks of the transmitter instead. See
"Setting up the transmitter."
Distorted sound
, If the transmitter is connected to the
headphones jack, lower the volume of
the audio/video equipment connected
to the transmitter.
, The headphones' power indicator light
dims, flashes or goes off.
• Replace dry battery with new one. If
the power indicator is still off after
replacing the battery, take the
headphones to a Sony dealer.
, If you connect the headphone jacks of
your connected equipment to the LINE
IN jack of the transmitter, sound may
be distorted when raising the volume.
Use the PHONES IN jacks of the
transmitter instead. See "Setting up the
transmitter."
Loud background noise
, Move closer to the transmitter. (As you
move away from the transmitter, more
noise is likely to be heard. This is
inherent in infrared ray communication
and does not mean that there is a
problem with the unit itself.)
, Check that there is no object between
the transmitter and the headphones.
, Check that the infrared sensors are not
covered with your hands or hair.
, If you use the headphones by a
window where the sunlight is too
strong, draw the curtains/blinds to
shut out the direct sunlight, or use the
headphones away from the sunlight.
, Change the position or angle of the
transmitter.
, If the transmitter is connected to the
headphones jack, raise the volume of
the audio/video equipment connected
to the transmitter.
, The headphones' power indicator light
dims, flashes or goes off.
• Replace dry battery with new one. If
the power indicator is still off after
replacing the battery, take the
headphones to a Sony dealer.
, When you have another transmitter,
check if more than one transmitters are
used at the same time.
• Turn off other transmitter or move to
a place outside the range of this
transmitter.
Additional information
13 GB