Sony MDRRF-975-RK Service manual

MDR-RF975RK

SERVICE MANUAL

Ver 1.0 2001. 05

MDR-RF975RK is 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-RF975RK

MDR-RF975RK

Wireless Stereo Headphones MDR-RF975R

Transmitter TMR-RF975R

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

ACCESSORIES & PACKING MATERIALS

****************************

0 1-473-588-12 ADAPTOR, AC (AC-S901)

1-473-606-11 ADAPTOR, PLUG

(Stereo mini jack t stereo phone plug)

1-751-754-11 CORD, CONNECTION

(Phono plugs y stereo mini plug), 1m

3-233-606-11 MANUAL, INSTRUCTION (ENGLISH, SPANISH)

US Model

SPECIFICATIONS

General

Carrier frequency

913.5 – 914.5 MHz
Channel Ch1, Ch2, Ch3
Modulation FM stereo
Frequency response

18 – 22,000 Hz

Transmitter TMR-RF975R

Power source DC 9 V: supplied AC power adaptor
Audio input phono jacks/stereo mini jack
Dimensions Approx. 130 135 150 mm

(5 1/4 5 3/8 6 in.) (w/h/d)

Mass Approx. 200 g (7 oz.)

Headphones MDR-RF975R

Power source DC 2.4 V: Built-in rechargeable

Mass Approx. 350 g (12.3 oz.) incl.

built-in rechargeable battery

Built-in Ni-MH rechargeable battery

Model name NH-AAC
Voltage 1.2 V
Capacity 1,000 mAh

Design and specifications are subject to change without
notice.

X

XX

X

battery

9-873-142-11

2001E0200-1

© 2001.5

WIRELESS STEREO

HEADPHONE SYSTEM

Sony Corporation

Personal Audio Company

Shinagawa Tec Service Manual Production Group

MDR-RF975RK

Setting up the
transmitter

Connect the transmitter to audio/video

1

equipment. Select one of the hookups
below depending on the jack type:

SECTION 1

GENERAL

To connect to a headphones jack

A

Transmitter

OFF ON

FILTERNOISE

BA

R

AUDIO IN

L

This section is extracted from
instruction manual.

to AUDIO IN
A jacks

DC IN 9V

123

CHANNEL

5

Turn up the volume to a moderate 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.

Right channel
(red)

Connecting cord
(supplied)

Unimatch plug
adaptor
(supplied)

to headphones
jack (stereo
phone jack)

Left channel
(white)

to headphones
jack (stereo
mini jack)

Discman, MD,
WALKMAN*, VCR,
etc.

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.

TUNING
button

VOL control

Try the above steps 3 and 5 until the
receiving performance becomes better.

2

The power turns on.