Sony MDR-RF875RK Service Manual

MDR-RF875RK

SERVICE MANUAL

Ver 1.0 2000. 08

MDR-RF875RK 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-RF875RK

Headphones MDR-RF875R
Transmitter TMR-RF875R

PARTS LIST

The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.

Ref. No. Part No. Description Remarks

ACCESSORIES & PACKING MATERIALS

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

0 1-475-761-12 ADAPTOR, AC (AC-S901K)(AEP)
0 1-473-590-12 ADAPTOR, AC (AC-S901) (UK)
0 1-473-606-11 ADAPTOR, PLUG

1-559-906-32 CORD, CONNECTION
3-222-709-11 MANUAL,INSTRUCTION (ENGLISH)(AEP,UK)

3-222-709-21 MANUAL,INSTRUCTION

(FRENNCH,GERMAN,SPANISH,DUTCH,ITALIAN,

PORUTGUESE) (AEP)

AEP Model

UK Model

SPECIFICATIONS

General

Carrier frequency

863.5 – 864.5 MHz
Channel Ch1, Ch2, Ch3
Modulation FM stereo
Frequency response

18 – 22,000 Hz

Transmitter TMR-RF875R

Power source DC 9 V: supplied AC power

Audio input phono jacks/stereo mini jack
Dimensions Approx. 130 × 135 × 150 mm

Mass Approx. 200 g (7 oz.)

Headphones MDR-RF875R

Power source DC 2.4 V: Built-in rechargeable

Mass Approx. 350 g (12.25 oz.) incl.

Built-in Ni-MH rechargeable battery

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

adaptor

1

/4 × 5 3/8 × 6 in.) (w/h/d)

(5

battery

built-in rechargeable battery

Design and specifications are subject to change without
notice.

WIRELESS STEREO

HEADPHONE SYSYTEM

MDR-RF875RK

Setting up the
transmitter

1

A To connect to a headphone jack

SECTION 1

GENERAL

Connect the transmitter to audio/video
equipment. Select one of the hookups
below depending on the jack type:

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.

This section is extracted
from instruction manual.

Transmitter

OFF ON

FILTERNOISE

Right channel
(red)

Connecting cord
(supplied)

Unimatch plug
adaptor
(supplied)

to headphones
jack (stereo
phone jack)

RBAL

AUDIO IN

CD Walkman,
MD Walkman,
WALKMAN*,
VCR, etc.

to AUDIO IN
A jacks

DC IN 9V

123

CHANNEL

Left channel
(white)

to headphones
jack (stereo
mini jack)

TUNING

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.

Note

If a hissing noise is heard move closer to the transmitter.

9-927-965-11

Sony Corporation

Audio Entertainment Group

— 2 —

Printed in Japan ©2000.8

2000H1646-1

Published by PE General Engineering Dept.