Sony MDR-IF330RK User Manual
11
Troubleshooting
No sound/Muffled sound
/ Turn on the transmitter first, then put on
the headphones.
/ Check the connection of the audio/video
equipment or the AC power adaptor.
/ Check that the input select switch position
is correct.
/ Check that the audio/video equipment is
turned on.
/ Turn up the volume on the connected
audio/video equipment, if the transmitter
is connected to the headphones jack.
(Around level 5 or 6 on the volume control
should be appropriate.)
is connected to the headphones jack.
(Around level 5 or 6 on the volume control
should be appropriate.)
/ 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
• Change the position and angle of the
transmitter.
/ The headphones’ power indicator light is
weak or turned off.
• Charge the rechargeable battery because
• Charge the rechargeable battery because
the headphones’ battery is weak, or if the
power indicator is still off after charging
the battery. Take the headphones to a
Sony dealer for a replacement of the
rechargeable battery.
power indicator is still off after charging
the battery. Take the headphones to a
Sony dealer for a replacement of the
rechargeable battery.
• If you are using the conventional dry
battery, replace it with a new one.
/ When the LINE OUT jack of your audio/
video equipment is connected to PHONES
IN (A) of the transmitter, the sound will be
low. Connect the LINE OUT jack to the
LINE IN (B) as described in “Setting up the
transmitter.”
IN (A) of the transmitter, the sound will be
low. Connect the LINE OUT jack to the
LINE IN (B) as described in “Setting up the
transmitter.”
Distortion
/ If the transmitter is connected to the
headphones jack, turn down the volume of
the connected audio/video equipment.
(Around level 5 or 6 on the volume control
should be appropriate.)
the connected audio/video equipment.
(Around level 5 or 6 on the volume control
should be appropriate.)
/ The headphones’ power indicator light is
weak or turned off.
• Charge the rechargeable battery because
• Charge the rechargeable battery because
the headphones’ battery is weak, or if the
power indicator is still off after charging
the battery. Take the headphones to a
Sony dealer for a replacement of the
rechargeable battery.
power indicator is still off after charging
the battery. Take the headphones to a
Sony dealer for a replacement of the
rechargeable battery.
• If you are using the conventional dry
battery, replace it with a new one.
/ When the headphones jack output is
connected to the LINE IN (B) of the
transmitter, increasing the volume of the
connected audio/video equipment may
cause distortion. Connect the headphones
jack output instead to PHONES IN (A) as
described in “Setting up the transmitter.”
transmitter, increasing the volume of the
connected audio/video equipment may
cause distortion. Connect the headphones
jack output instead to PHONES IN (A) as
described in “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
to infrared ray communication and does
not mean that there is a problem with the
unit itself.
noise is likely to be heard. This is inherent
to 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.
/ Change the position or angle of the
transmitter.
• The headphones are used by a window
• The headphones are used by a window
where the sunlight is too strong.
n Draw the curtains/blind to shut out
n Draw the curtains/blind to shut out
the direct sunlight, or use the
headphones away from the sunlight.
headphones away from the sunlight.
/ If the transmitter is connected to the
headphones jack, turn up the volume of the
connected audio/video equipment.
(Around level 5 or 6 on the volume control
should be appropriate.)
connected audio/video equipment.
(Around level 5 or 6 on the volume control
should be appropriate.)
/ The headphones’ power indicator light is
weak or turned off.
• Charge the rechargeable battery because
• Charge the rechargeable battery because
the headphones’ battery is weak, or if the
power indicator is still off after charging
the battery. Take the headphones to a
Sony dealer for a replacement of the
rechargeable battery.
power indicator is still off after charging
the battery. Take the headphones to a
Sony dealer for a replacement of the
rechargeable battery.
• If you are using the conventional dry
battery, replace it with a new one.
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