Sony MDR-RF845RK User Manual
11
Specifications
General
Carrier frequency
863.5 – 864.5 MHz
Channel
Ch1, Ch2, Ch3
Modulation
FM stereo
Frequency response
20 – 20,000 Hz
Transmitter TMR-RF845R, TMR-RF815R
Power source
DC 9 V: supplied AC power
adaptor
adaptor
Audio input
phono jacks/stereo mini jack
Dimensions
Approx. 150 mm dia
×
108 mm
(6
×
4
1
/
3
in.) (w/h)
Mass
Approx. 190 g (6.7 oz.)
Headphones MDR-RF845R, MDR-RF815R
Power source
DC 2.4 V: Built-in rechargeable
battery
Mass
Approx. 240 g (8.5 oz.) incl.
built-in rechargeable battery
built-in rechargeable battery
Built-in Ni-Cd rechargeable battery
Model name
NC-AA
Voltage
1.2 V
Capacity
700 mAh
Optional accessory
Plug adaptor
PC-236HG (stereo mini jack
y
monaural mini plug)
Design and specifications are subject to change without
notice.
notice.
Problem
Distortion
Loud
background
noise
background
noise
Solution
If the transmitter is
connected to the headphones jack,
turn down the volume of the
connected audio/video equipment.
connected to the headphones jack,
turn down the volume of the
connected audio/video equipment.
Change the radio frequency with the
CHANNEL selector on the
transmitter.
CHANNEL selector on the
transmitter.
The headphones’ POWER indicator
light is weak or turned off.
• Charge the built-in rechargeable
light is weak or turned off.
• Charge the built-in rechargeable
battery or if the POWER indicator is
still off after charging the built-in
rechargeable battery, take the
headphones to a Sony dealer for
replacement of the rechargeable
battery.
still off after charging the built-in
rechargeable battery, take the
headphones to a Sony dealer for
replacement of the rechargeable
battery.
If you connect the transmitter to LINE
OUT or REC OUT jack of an audio
reproducer, make sure that the NOISE
FILTER switch is set to OFF.
OUT or REC OUT jack of an audio
reproducer, make sure that the NOISE
FILTER switch is set to OFF.
Move closer to the transmitter. As
you move away from the transmitter,
more noise is likely to be heard.
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.
headphones jack, turn up the volume
of the connected audio/video
equipment.
MDR-RF815RK:
Change the radio frequency with the
CHANNEL selector on the
transmitter, then tune the headphones
with the TUNING control.
MDR-RF845RK:
Change the radio frequency with the
CHANNEL selector on the
transmitter, then press the TUNING
button again.
Change the radio frequency with the
CHANNEL selector on the
transmitter, then tune the headphones
with the TUNING control.
MDR-RF845RK:
Change the radio frequency with the
CHANNEL selector on the
transmitter, then press the TUNING
button again.
The headphones’ POWER indicator
light is weak or turned off.
• Charge the built-in rechargeable
light is weak or turned off.
• Charge the built-in rechargeable
battery or if the POWER indicator is
still off after charging the built-in
rechargeable battery, take the
headphones to a Sony dealer for
replacement of the rechargeable
battery.
still off after charging the built-in
rechargeable battery, 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 jack of an
audio reproducer, make sure that the
NOISE FILTER switch is set to OFF.
LINE OUT or REC OUT jack of an
audio reproducer, make sure that the
NOISE FILTER switch is set to OFF.