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Problem
Solution
Distortion
If the transmitter is connected to the
headphone jack, reduce the volume of
the connected audio/video
equipment.
Change the radio frequency with the
CHANNEL selector switch on the
transmitter.
The headphones' power indicator
light is weak or turned off.
• Charge the supplied rechargeable
battery or if the power indicator is
still off after charging the supplied
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 jacks of an
audio reproducer, make sure that the
NOISE FILTER switch is set to OFF.
Loud
Move closer to the transmitter. As
background
you move away from the transmitter,
noise
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.
Change the radio frequency with the
CHANNEL selector switch on the
transmitter, then press the TUNING
button again.
The headphones' power indicator
light is weak or turned off.
• Charge the supplied rechargeable
battery or if the power indicator is
still off after charging the supplied
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 jacks of an
audio reproducer, make sure that the
NOISE FILTER switch is set to OFF.
Specifications
General
Carrier frequency
863.5 – 864.5 MHz
Channel
Ch1, Ch2, Ch3
Modulation
FM stereo
Frequency response
20 – 20,000 Hz
Transmitter TMR-RF885R
Power source
DC 9 V: supplied AC power
adaptor
Input
INPUT A phono jacks
INPUT B stereo mini jack
Approx. 140 × 70 × 75 mm
Dimensions
5
(5
/
8
(w/h/d)
Mass
Approx. 145 g (5.1 oz.)
Headphones MDR-RF885R
Power source
Supplied rechargeable nickel-
metal hydride battery BP-HP550
or commercially available
(size AAA) dry battery
Mass
Approx. 80 g (2.8 oz.) incl.
battery
Design and specifications are subject to change without
notice.
× 2
× 3 in.)
7
/
8
13
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