Sony MDR-RF940RK

3-858-839-11 (1)

Notes
• Use only the supplied rechargeable batteries NC-

AA (HJ).

• You cannot recharge other R6 (size AA)

rechargeable batteries (NC-AA etc.) with this
unit.

• Use only the supplied AC power adaptor.  Do

not use any other AC power adaptor.

Connect the transmitter to audio/
video equipment.

a To connect to a headphones jack

b To connect to LINE OUT or REC OUT

jacks

( Getting started

Check that you have the following

items:

• The transmitter

• AC power adaptor

• Connecting cord (phono plugs ˜

stereo mini jack)

• The headphones

• Ni-Cd rechargeable batteries NC-AA

(HJ)

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Open the battery compartment lid

on the bottom of the transmitter.

Insert two NC-AA (HJ) batteries by

matching the + and - on the batteries
to the + and - in the battery
compartment.

Close the battery compartment.

Connect the transmitter to a power

source.

Set the OFF/CHG/POWER ON

switch to OFF/CHG.

The OFF/CHG indicator lights up in

green and charging starts.

When the charging complete,

@@@@@

Operating Instructions

Sony Corporation © 1996 Printed in Japan

3-858-839-41(1)

Open the battery compartment lid
on the left inner side of the head
band.

Insert two charged NC-AA (HJ)
batteries by matching the + and – on
the batteries to the + and – in the
battery compartment.

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]

Close the battery compartment lid.

To recharge the headphones’ batteries
after use
To charge the batteries, follow steps in
“Charging the headphones’ batteries.”
Since little electric current is used for
charging, there is no need to worry
about overcharging.

* The hours required to fully charge empty

batteries

Using the headphones with a
commercially available R 6 (size AA)
dry batteries
Install the battery in the manner as
described in “Setting up the
headphones.”

Notes on batteries
To avoid damage to the system caused
by battery leakage and corrosion;
– Install the batteries with the correct

polarity.

– Do not try to recharge the batteries.
– Remove the batteries if the system is

not to be used for a long period of
time.

In case of battery leakage, wipe off any
deposit in the battery compartments
before installing new batteries.

When to replace the batteries
When the POWER indicator dims, and a
hissing noise increases charge the NC-
AA (HJ) batteries or replace both
batteries with new ones.

00

00*

00

00

40

20

Sony alkaline battery LR6
(SG)

Sony battery R6P (SR)

Thank you for purchasing the Sony
MDR-RF940RK Wireless Stereo
Headphone System.  Before operating
the unit, please read this manual
thoroughly and retain it for future
reference.
Some features are:
• Wireless system that allows you to

listen to a program free from the
restriction of a cord within 130 feet
from the transmitter.

• High fidelity sound reproduction
• Compact transmitter which operates

on AC power supplied through the
supplied AC power adaptor and allso
functions as a buttery charger

• Comfortable Circum-aural

headphones

• Automatic ON/OFF function on

headphones to preserve battery power

• Mute function to avoid noise when no

audio signal is available.