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