Sony MDRRF-915-RK, MDRRF-945-RK Service manual
MDR-RF915RK/RF945RK
SERVICE MANUAL
Ver 1.0 2001. 05
Photo : MDR-RF945RK
MDR-RF915RK and MDR-RF945RK are Composed of the following
models.
As for the service manual it is issued for each component model,
then please refer to it.
COMPONENT MODEL NAME FOR MDR-RF915RK/
MDR-RF945RK
MDR-RF915RK MDR-RF945RK
Wireless Stereo Headphones MDR-RF915R MDR-RF945R
Transmitter TMR-RF915R TMR-RF945R
PARTS LIST
The components identified by
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
Ref. No. Part No. Description Remark
0 1-473-588-12 ADAPTOR, AC (AC-S901)
1-473-606-11 ADAPTOR, PLUG
1-751-754-11 CORD, CONNECTION
3-233-607-11 MANUAL, INSTRUCTION
3-233-607-21 MANUAL, INSTRUCTION (ENGLISH, FRENCH)
Les composants identifiés par une
marque ! sont critiques pour
la sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
ACCESSORIES & PACKING MATERIALS
****************************
(Stereo mini jack t stereo phone plug)
(Phono plugs y stereo mini plug), 1m
(ENGLISH, SPANISH) (US)
(Canadian)
US Model
Canadian Model
SPECIFICATIONS
General
Carrier frequency
913.5 – 914.5 MHz
Channel Ch1, Ch2, Ch3
Modulation FM stereo
Frequency response
20 – 20,000 Hz
Transmitter TMR-RF945R, TMR-RF915R
Power source DC 9 V: supplied AC power adaptor
Audio input phono jacks/stereo mini jack
Dimensions Approx. 150 mm dia. 108 mm
Mass Approx. 190 g (6.7 oz.)
Headphones MDR-RF945R, MDR-RF915R
Power source DC 2.4 V: Built-in rechargeable
Mass Approx. 240 g (8.5 oz.) incl.
Built-in Ni-Cd rechargeable battery
Model name NC-AA
Voltage 1.2 V
Capacity 700 mAh
Design and specifications are subject to change without
notice.
1
(6 4 x
built-in rechargeable battery
in.) (w/h)
/
3
battery
x
9-873-138-11
2001E0200-1
© 2001.5
WIRELESS STEREO
HEADPHONE SYSTEM
Sony Corporation
Personal Audio Company
Shinagawa Tec Service Manual Production Group
MDR-RF915RK/RF945RK
f
Setting up the
transmitter
1
Connect the transmitter to audio/video
equipment. Select one of the hookups
below depending on the jack type:
To connect to a headphones jack
A
SECTION 1
GENERAL
5
- Turn up the volume to a moderate
This section is extracted from
instruction manual.
A
level with the VOL control.
Press the TUNING button briefly for
automatic tuning of the headphones.
If you do not receive a clear audio
signal, press it again.
A
MDR-RF945RK
Transmitter
OFF ON
FILTERNOISE
Right channel
(red)
Connecting cord
(supplied)
Unimatch plug
adaptor
(supplied)
to headphones
jack (stereo
phone jack)
RBAL
AUDIO IN
to AUDIO IN
A jacks
DC IN 9V
123
CHANNEL
Left channel
(white)
to headphones
jack (stereo
mini jack)
Discman, MD,
WALKMAN*, VCR,
etc.
TUNING
button
VOL control
B
5
- Turn up the volume to a moderate
level with the VOL control, then tune
the headphones in to the frequency o
the transmitter with the TUNING
control until you can hear the audio
signal loud and clear.
MDR-RF915RK
B
TUNING
control
VOL control
Try the above steps 3 and 5 until the
receiving performance becomes better.
Auto power on/off function
When you remove the headphones from your
head, the power turns off automatically. Do not
allow the self adjusting band to be pulled up,
otherwise the headphones will be switched on.
The power turns on.
2
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