Problem
Solution
Distortion
If tile transmitter
is connected
to tile
headphone
jack, volume
of tile
connected
audio/video
equipment.
Change
the radio
frequency
with
the
CHANNEL
selector
on the
transmitter.
The headphones'
POWER
indicator
light is weak
or turned
off.
• (harge
the supplied
rechargeable
batteries
or if the POWER
indicator
is still off after
charging
the
supplied
rechargeable
batteries,
take
the headphones
to a Sony dealer
for
replacement
of the rechargeable
battery.
If you connect
the transmitter
to the
LINE OUT
or REC OUT jacks
of an
audio
reproducer,
make sure
that the
NOISE
FILTER
switch
is set to OFF.
Loud
background
noise
Move closer
to the transmitter.
As
you move
away
from
the transmitter,
more
noise
is likely
to be heard.
If the transmitter
is connected
to the
headphones
jack,
turn
up the volume
of the connected
audio/video
equipment.
MDR-RF920RK:
Change
the radio
frequency
with
the
CHANNEL
selector
on the
transmitter,
then
tune
the headphones
with
the TUNE
control.
MDR-RF960RK:
Change
the radio
frequency
with
the
CHANNEL
selector
on the
transmitter,
then
press
the TUNE
button
again.
The headphones'
POWER
indicator
light is weak
or turned
off.
• Charge
the supplied
rechargeable
batteries
or if the POWER
indicator
is still off after
charging
the
supplied
rechargeable
batteries,
take
the headphones
to a Sony dealer
for
replacement
of the rechargeable
battery.
If you connect
the transmitter
to the
LINE OUT
or REC OUT jacks
of an
audio
reproducer,
make sure
that the
NOISE
FILTER
switch
is set to OFF.
Specifications
General
Carrier frequency
913.5
914.5 MHz
Channel
Chl, Ch2, Ch3
Modulation
FM stereo
Frequency
response
MDR-RF920R
: 20 - 20,000 Hz
MDR-RF960R:
10
22,000 Hz
Transmitter
TMR-RF960R
Power source
DC q V: supplied
AC power
adaptor
Audio
input
phono
jacks/stereo
mini jack
Dimensions
Approx.
133 × 124 × 136 mm
(5 1/4 x 5 x 5 3/sin.)
(w/h/d)
Mass
Approx.
195 g (7 oz.)
Headphones
MDR-RF920R,
MDR-RF960R
Power source
Supplied
rechargeable
nickel-
metal hydride
batteries
BP-
HP550 or commercially
available
(size AAA) dry batteries
Mass
Approx.
270 g (9.6 oz.) incl.
batteries
Optional
accessories
Audio cable
RK-G136 (stereo mini plug *-+
stereo mini plug)
RK-C310,C320
(pin plug x 2 *-+
pin plug × 2)
Design and specifications
are subject to change
w,ithout
notice.
13 cB